Tag: electricity

Mercedes-Benz A-Class (w168; 1997 – 2004)  – fuse box diagram

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Mercedes-Benz A-Class (w168; 1997 – 2004)  – fuse box diagram

Year of production: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

Fuse box

Mercedes-Benz A-Class w168 - fuse box diagram
Mercedes-Benz A-Class w168 – fuse box diagram
No. Fused function A
1 Gasoline engine:Control module, ISC (Idle speed control), AGR-Ventil, Lambda heater 1, Lambda heater 2, Diagnostic socket, Cruise control, Secondary air injection relay, Secondary air injection valve, Shut-off valve 20
Diesel engine:Diesel control module, Wastegate actuator, Throttle valve switchover valve, Exhaust gas recirculation pressure valve, Three-way catalytic converter temperature sensor 10
2 Gasoline/diesel engine control module, Ignition coils, Injection valves, FP relay module (coil), Electronic accelerator, Starter lockout relay 25
3 Electric fan (engine cooling), Electric fan (engine cooling) with air conditioning 30 40
4 Engine control module 7.5
5 Automatic clutch 40
6 FP relay module (gasoline) 30
7 Light module 40
8 Starter relay 30
9 Wiper motor 40
10 Rear wiper 20
Laminated roof 40
11 Combination switch (Wiper control, Headlamp flasher, Windshield washer pump (actuation)), RNS (Radio Navigations System) 15
12 Cigarette lighter, Glovebox illumination, Radio, CD changer, 12V socket in trunk 30
13 Front left power window or power window with excess force limiter
Front right power window		 30 7.5 30
14* Instrument cluster (time functions), Wipe/wash pump relay, Mobile phone 15
10
15 Airbag control module, ACSR sensor (automatic child seat recognition), Side airbag sensor, Side airbag sensor 10
16 Exterior rearview mirror adjustment, Exterior rearview mirror heater, Parktronic 15
17 Fanfare horn 15
18 Instrument cluster, Transponder and RFL (radio frequency locking), Motor electronics relay, Fan relay 10
19 Trailer coupling 25
20 Trailer coupling 15
21 Trailer coupling 15
22 Sound system 25
23 Make UP mirror illumination 7.5
24 Not assigned
25 Not assigned
26 Not assigned
27 Not assigned
28 Instrument cluster, last Instrument cluster, last Excess force limiter control module (excess force limiter) 10
29 Central locking, Seat installation recognition unit 15
30 DAS transponder (drive authorization system) and RFL (radio frequency locking), Electric instrument cluster 7.5
31 Rear window defroster 25
32 Portable phone, Radio or RNS (Radio Navigations System), CD changer, Front dome lamp, Rear dome lamp 15
33 Front left power window, Front right power window 30
34 Heater booster/freeze protection (diesel) 30
35 ATA control module 2x light relay, Siren 10
36 Front heated seats 25
37 VGS program selector lever (fully integrated transmission control), Heater booster coolant circulation pump (diesel) 10
38 Air conditioning control module (A/C compressor), Blend air recirculation flap stepper motor, Interior sensor blower, Heated windshield washer nozzle 10
39 Light module, Backup lamp, manual transmission/ automatic clutch, VGS backup lamp (fully integrated transmission control) 7.5
40 Stop lamp, left, right and center (ABS brake signal), Steering angle sensor 10
41 Air conditioning control module, Diagnostic socket 10
42 Rear left power window, Rear right power window 30
43 ESP (Electronic stability program), Brake switch, NC contact 15
44 VGS control module (fully integrated transmission control) or automatic clutch 10
45 Interior blower or air conditioning interior blower 30
46 Central protection by fuses 80
47 Power steering pump 60
48 Preglow control module (diesel) 60
Secondary air injection (AIR) (gasoline) 30
* The fuse f14 has been increased from 10 to 15 ampere as Fuse 14 for wipe/wash pump relay of chassis end number 033 655.
Only a 10 ampere fuse should be used up to chassis end number 033 654.

Light module fuse box

Mercedes-Benz A-Class w168 - fuse box diagram- light nodule fuse box
Mercedes-Benz A-Class w168 – fuse box diagram- light nodule fuse box
No. Fused function A
1 Left low beam 7.5
2 Right low beam 7.5
3 Left main beam
Right main beam
Main beam indicator lamp (instrument cluster)		 15
4 Left side lamp
Left tail lamp		 7.5
5 Right side lamp
Right tail lamp
58K instrument cluster
License plate lamps		 15
6 Left/right fog lamp
Left rear fog lamp		 15

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz SLK (R170; 1995 – 2004)  – fuse box diagram

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Mercedes-Benz SLK (R170; 1995 – 2004)  – fuse box diagram

Year of production: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

Fuse box

Mercedes-Benz SLK (R170) - fuse box diagram
Mercedes-Benz SLK (R170) – fuse box diagram
No. Fused function A
1 Asra:
Turn signal lamps
Trailer turn signal lamps		 7.5
170 545 (01, 10, 20, 22, 28) 00:
Telephone
Garage door opening signal (170 545 (10, 20, 22, 28) 00)
E-Call (170 545 (20, 22, 28) 00)		 5
2 Asra:
Fanfare horn
Automatic heater: (Circulated air valve Automatic heater)
Daytime running lamp control module		 15
Asra:
Fanfare horn
Air conditioning (Tempmatic): (Electric suction-type fan control module, Recirculated air valve)
Air conditioning (Automatic): (Electric suction-type fan control module)
Daytime running lamp control module		 20
170 545 (01, 10, 20, 22, 28) 00:
Control unit-airbag
Control unit-automatic child seat recognition system		 5
3 Asra:
Instrument cluster
Exterior lamp failure monitoring module
Stop lamp switch (Stop lamps, Trailer stop lamps, Center high-mounted stop lamp, Traction system control module)
Heated windshield washer nozzle (Left, Right)
Heated washer nozzle hose (Left, Right)		 15
170 545 (01, 10, 20, 22, 28) 00:
Indicator, safety restraint system
Indicator, automatic child seat recognition system		 5
4 Asra: Right low beam headlamp 7.5
Asra: ATA low beam (USA, CH) 15
170 545 (01, 10, 20, 22, 28) 00: Wiper motor 30
5 Asra: Left low beam headlamp 7.5
170 545 (01, 10, 20, 22, 28) 00: Radio 15
6 Asra: Right high beam headlamp 7.5
170 545 (01, 10, 20, 22, 28) 00: Exterior mirror adjustment, left and right 15
7 Asra:
Left high beam headlamp
High beam headlamp indicator		 7.5
170 545 (01, 10, 20, 22, 28) 00:
Soft top control indicator
Electronic transmission control
Park/reversing lock		 5
8 Asra:
Left fog lamp
Right fog lamp		 10
170 545 (01, 10, 20, 22, 28) 00: Radio 15
9 Asra:
Blower regulator
Air conditioning (Automatic)/Air conditioning (Tempmatic)		 30
170 545 (01, 10, 20, 22, 28) 00:
Roof light
Horn (170 545 (10, 20, 22, 28) 00)
Anti-theft-alarm (170 545 (10, 20, 22, 28) 00)
Boot light (170 545 (20, 22, 28) 00)		 10
10 Tempomat (cruise control)
Crash shut-off relay (Asra, 170 545 01 00; SLK 200 Kompressor (170.445), SLK 230 Kompressor (170.447))
Headlamp range Xenon (170 545 (20, 22, 28) 00)		 5
11 Ignition coils 15
Engine control 10
12 Heated windshield washer system thermoswitch (Washer nozzles, Hose heater) 10
13 Asra, 170 545 (01, 10, 20) 00:
Diagnostic socket
Telephone
E-Call (170 545 (20, ??) 00)		 5
170 545 (22, 28) 00:
Diagnostic socket
Telephone		 10
14 Asra, 170, 545, 01 00: Sound system (Left/right audio power amplifier) 25
170 545 (10, 20, 22, 28) 00: Soundbooster 20
15 Asra, 170 545 01 00: HFM-SFI engine control module (SLK 200 (170.435; 10.95 – 04.00) 15
170 545 (10, 20, 22, 28) 00:
Automatic heating system
Tempmatic
Auxiliary water pump		 5
16 Asra, 170 545 01 00: HFM-SFI engine control module (SLK 200 (170.435; 10.95 – 04.00) 10
170 545 (20, 22) 00: ABS/ESP 30
17 170 545 (20, 22) 00: ABS/ESP 5
18 170 545 28 00: E-Call 5
19 170 545 (10, 20, 22, 28) 00: Power window, front 40
20 170 545 (10, 20, 22, 28) 00: Power window, rear 40
21 170 545 (20, 22, 28) 00: Seat adjustment right side 30
22 170 545 (20, 22, 28) 00: Seat adjustment left side 30
23 170 545 22 00: Water pump – charged engine 5
170 545 28 00: Water pump – 3,2 charged engine 10
170 545 10 00:
Central locking
Boot light		 20
24 170 545 (20, 22, 28) 00: Hydraulic unit 40
170 545 10 00: Pneumatic control unit, rear window defroster 20
25 170 545 (20, 22, 28) 00: Pneumatic control unit, rear window defroster 20
170 545 10 00: Hydraulic unit 40
26 170 545 (20, 22, 28) 00: Central locking 20
30 Seat heater 5
31 Front cigar lighter with ashtray illumination
Glove compartment lamp		 15
32 Combination switch (Wiper motor, Washer pump, Headlamp flasher) 15
33 Heater pushbutton control module 5
34 Asra, 170 545 01 00: Seat heater 25
170 545 (10, 20, 22, 28) 00: Seat heater 30
35 Closing confirmation relay
Instrument cluster (Light warning buzzer)
Stationary heater/heater booster unit
Radio frequency remote control
Hazard warning flasher		 15
36 A/C system blower unit
Automatic heating system
Tempmatic		 30
37 Diagnosis (OBD II)
Radio frequency remote control
Instrument cluster
Automatic heater (HEAT):
Heater pushbutton control module (HEAT)
A/C control module (Tempmatic A/C)
Fresh/recirculated air flap switchover valve		 5
M1 Asra, 170 545 01 00: Front power windows 40
M2 Asra, 170 545 01 00: Rear power windows 40
M3 Asra, 170 545 01 00: Fuse box in trunk 80
M4 Asra, 170 545 01 00: Booster heater control module (SLK 200 Kompressor (170.445), SLK 230 Kompressor (170.447), left-hand steering LHS) 40
170 545 01 00: Suction-type fan (tempmatic) (on RHD models in control unit box) 50

Fuse box on light module (left-hand steering)

Mercedes-Benz SLK (R170) - fuse box diagram - on light module (left-hand steering)
Mercedes-Benz SLK (R170) – fuse box diagram – on light module (left-hand steering)
No. Fused function A
1 Not used –
2 Stop lamp switch
Cruise control		 15
3 Right high beam
High beam indicator lamp		 7.5
4 Reverse lamp
Turn signal lamp
Rearview mirror dimming control
Parking aid control		 15
5 Left high beam 7.5
6 Right low beam 15
7 Front right parking light
Front right side marker (model 170 USA)
Right taillamp		 7,5
8 Left low beam 15
9 Left fog lamp
Right fog lamp		 15
10 Front left parking light
Front left side marker (model 170 USA)
Left taillamp		 7,5
11 License plate lamp
Instrument illumination
Symbol illumination
Automatic headlamp range control		 7.5
12 Rear fog lamp 7.5

Fuse box on light module (right-hand steering)

Mercedes-Benz SLK (R170) - fuse box diagram - on light module (right-hand steering)
Mercedes-Benz SLK (R170) – fuse box diagram – on light module (right-hand steering)
No. Fused function A
1 Left fog lamp
Right fog lamp		 15
2 Rear fog lamp 7.5
3 Right front parking lamp
Right taillamp		 7.5
4 Left front parking lamp
Left taillamp		 7.5
5 Left high beam 7.5
6 License plate lamp
Instrument illumination
Symbol illumination
Automatic headlamp range control		 7.5
7 Right high beam
High beam indicator lamp		 7.5
8 Left low beam 15
9 Stop lamp
Cruise control		 15
10 Right low beam 15
11 Not used –
12 Reverse lamp/turn signal lamp
Rearview mirror dimming control
Parking aid control

Fuse box in trunk

Mercedes-Benz SLK (R170) - fuse box diagram - trunk
Mercedes-Benz SLK (R170) – fuse box diagram – trunk

X – Front of vehicle

No. Fused function A
23 Asra:
Supply pump (CL)
Horn (ATA)
Trunk lamp		 20
24 Asra: PSE control module 40
25 Asra: Soft top mechanism hydraulic unit 30
26 Asra: Not used –

Fusecard

170 545 01 00

Mercedes-Benz SLK (R170) - fuse box diagram - fusecard 170 545 01 00
Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 01 00

170 545 10 00

Mercedes-Benz SLK (R170) - fuse box diagram - fusecard 170 545 10 00
Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 10 00

170 545 20 00

Mercedes-Benz SLK (R170) - fuse box diagram - fusecard 170 545 20 00
Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 20 00

170 545 22 00

Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 22 00

170 545 28 00

Mercedes-Benz SLK (R170) - fuse box diagram - fusecard 170 545 28 00
Mercedes-Benz SLK (R170) – fuse box diagram – fusecard 170 545 28 00

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz SLK (R171; 2004 – 2010)  – fuse box diagram

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Mercedes-Benz SLK (R171; 2004 – 2010)  – fuse box diagram

Year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010

Fuse box  – location

Mercedes-Benz SLK (R171) - fuse box diagram - location
Mercedes-Benz SLK (R171) – fuse box diagram – location

F32 – Front prefuse
F34 – Interior fuse box
N10/1 – Driver-side SAM control unit with fuse and relay module
N10/2 – Rear SAM control unit with fuse and relay module

Luggage compartment fuse box

Mercedes-Benz SLK (R171) - fuse box diagram - luggage compartment
Mercedes-Benz SLK (R171) – fuse box diagram – luggage compartment
No. Fused function A
1 Vehicle Information and Communication System (VICS) (Japan only) (up to 2008) 5
2 Not used –
3 Telephone system (up to 2008)
Tire pressure monitor control unit (as of 2009)
Parktronic control unit (as of 2009)		 7.5
4 Fuel pump assembly 20
5 Reserve 2 relay (as of 2009) 20
6 Not used –
7 Reserve 1 relay (as of 2009) 20
8 Left antenna amplifier module, right antenna amplifier module (up to 2008), left rear bumper antenna amplifier (up to 2008)
Anti-theft alarm system (ATA [EDW])
Compensator		 5
9 Parktronic System (PTS) (up to 2008) 5
Seat heater, AIRSCARF and steering wheel heater control unit (as of 2009) 25
10 Rear window defroster 40
11 Not used –
12 Not used –
13 Stowage compartment illuminat (up to 2008)
CDA telephone (retrofit wiring harness) (up to 2008)
Lumbar pump (as of 2009)
Emergency call system control unit (as of 2009)
VICS+ETC voltage supply separation point (as of 2009)		 5
14 Not used –
15 Interior central locking (up to 2008)
Filler cap release (up to 2008)
Fuel filler flap CL [ZV] motor (as of 2009)
Glove compartment CL [ZV] motor (as of 2009)
CL center console compartment motor (as of 2009)		 5
16 Lumbar pump (as of 2009) 7.5
17 Digital Audio Radio satellite (SDAR) (USA only) (up to 2008)
Voice control system (VCS) (USA only) (up to 2008)		 5
18 Seat heater, AIRSCARF and steering wheel heater control unit (as of 2009) 20
19 CD player with changer (in glove compartment) (up to 2008)
Navigation system (up to 2008)		 7.5
Seat heater, AIRSCARF and steering wheel heater control unit 20
20 Emergency call system (USA only) (up to 2008) 7.5
Seat heater, AIRSCARF and steering wheel heater control unit 10
Relay
A Fuel pump relay
B VICS relay (Japan only)
C Reserve 2 relay
D Reserve 1 relay
E Rear window defroster relay
F Circuit 15R, relay 1
G Fuel filler cap polarity change 1 relay
H Fuel filler cap polarity change 2 relay

Instrument panel fuse panel

Mercedes-Benz SLK (R171) - fuse box diagram - instrument panel
Mercedes-Benz SLK (R171) – fuse box diagram – instrument panel
No. Fused function A
21 Soft top operation control unit 5
22 Roof operating unit control unit 5
23 Airscarf system for left seat (up to 2008) 25
Media interface control unit (as of 2009) 5
24 Airscarf system for right seat (up to 2008) 25
Cell phone separation point (as of 2009)
25 Heated seats (up to 2008) 25
Amplifier for sound system (as of 2009) 40
26 Radio systems (up to 2008) 30
Radio (as of 2009) 25
27 Left door control module 25
28 Right door control module 25
29 AC recirculation unit 40
30 Instrument cluster 5
31 Heated steering wheel (up to 2008) 10
32 Right rear power window motor (up to 2008)
Soft top operation control unit (as of 2009)		 25
33 LHD: Steering column module 5
34 Steering wheel adjustment (up to 2008)
Driver-side front seat adjustment control unit, with memory (as of 2009)		 30
35 Front passenger seat adjustment (up to 2008)
Passenger-side front seat adjustment control unit with memory (as of 2009)		 30
36 EIS [EZS] control unit
Electric steering lock control unit		 15
37 Upper control panel control unit
Automatic air conditioning (KLA) or comfort automatic air conditioning (C-AAC)
Mirror adjustment (up to 2008)
Vario roof (VD) control (up to 2008)
Duovalve (up to 2008)
Mirror folding-in (up to 2008)
HEAT control and operating unit (as of 2009)
Comfort AAC [KLA] control and operating unit (as of 2009)		 7.5
38 Soft top mechanism hydraulic unit 40
39 Left rear power window motor (up to 2008)
Soft top operation control unit (as of 2009)		 25
40 Data link connector (1.3) (up to 2008)
Central gateway control unit		 5
41 Radio systems (up to 2008)
Navigation system (up to 2008)
Emergency call system control unit (as of 2009)
Digital Audio Broadcasting control unit (as of 2009)
SDAR control unit (as of 2009)		 5
42 RHD: Steering column module 5

Engine compartment fuse box

Mercedes-Benz SLK (R171) - fuse box diagram - engine compartment
Mercedes-Benz SLK (R171) – fuse box diagram – engine compartment
No. Fused function A
43 Fanfare 15
44 Glove compartment illumination with switch
Stowage compartment illumination between backrests (as of 2009)
Armrest stowage compartment lighting (as of 2009)
C-AAC [K-KlA] multifunction sensor		 5
45 ARMADA airbag control unit (up to 2008)
Airbag indicator and warning lamp (up to 2008)
Restraint systems control unit (as of 2009)
Front passenger seat occupied and child seat recognition sensor (as of 2009; USA)
Weight Sensing System (WSS) control unit (as of 2009; USA)		 7.5
46 Wiper system (WSA) 40
47 Cigar lighter with ashtray illumination
Interior socket
Radio systems (up to 2008)		 15
48 Not used –
49 ARMADA airbag control unit (up to 2008)
Airbag indicator and warning lamp (up to 2008)
Restraint systems control unit (as of 2009)		 7.5
50 Switch and controls illumination on exterior lamp switch 5
51 Instrument cluster (up to 2008)
Headlamp range adjustment (HRA) (up to 2008)
Electric suction-type fan for engine/AC (up to 2008)		 5
HRA power module (as of 2009)
Valid with engine 113.989 (SLK55 AMG): Control unit box blower motor (as of 2009)		 7,5
52 Starter 15
53 Engine control circuit 87/M1 (up to 2008)
Rear SAM control unit with fuse and relay module (as of 2009)
Starter relay (as of 2009)
Valid for engines 271, 272: ME-SFI [ME] control unit (as of 2009)
Valid with engine 113.989 (SLK 55 AMG): ME-SFI [ME] control unit (as of 2009)
Valid with engine 113.989 (SLK 55 AMG): Circuit 87 M1e connector sleeve (as of 2009)
Valid for engine 272: Circuit 87 M1e connector sleeve (as of 2009)		 25
54 Engine control, circuit 87/M2 (up to 2008)
AAC with integrated control additional fan motor (as of 2009)
Valid with engine 113.989 (SLK55 AMG), 272: Air pump relay (as of 2009)		 15
55 Headlamp range adjustment (HRA)
Backup lamp switch (up to 2008)
Valid for transmission 722:Electric control unit (VGS) (up to 2008)
Valid for transmission 722: Electronic selector lever module control unit (as of 2009)
Valid for transmission 722.6: ETC [EGS] control unit (as of 2009)		 7.5
56 Electronic stability program (ESP) 5
57 EIS [EZS] control unit
Valid for engine 113.989 (SLK 55 AMG), 272:Engine management		 5
58 Not used –
59 ESP [Electronic Stability Program] (pump) 50
60 ESP (valve block) 40
61 Not used –
62 Data link connector
Exterior lamp switch		 5
63 Exterior lamp switch 5
64 Radio systems (up to 2008)
Navigation system (up to 2008)		 10
65 Valid for engine 113.989 (SLK 55 AMG), 272:Electric air pump 40
Relay
I FAN relay module (up to 2008)
Fanfare horn I relay (as of 2009)
K Circuit 87 relay, chassis
L Wiper relay, stage 1-2
M Circuit 15R relay
N Backup relay
O Valid with engine 113.989 (SLK55 AMG), engine 272: Air pump relay
P Circuit 15 relay
Q Wiper ON and OFF relay
R Circuit 87 relay, engine
S Starter relay

Front prefuse

Mercedes-Benz SLK (R171) - fuse box diagram - front prefuse
Mercedes-Benz SLK (R171) – fuse box diagram – front prefuse
No. Fused function A
1 Interior fuse box 125
2 Rear SAM control module with fuse and relay module 200
3 Spare 125
4 Driver-side SAM control module with fuse and relay module, part 1 200
5 Electric suction-type fan for engine/AC 125
6 Driver-side SAM control module with fuse and relay module, part 4 60

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz SLK (R172; 2010 – present)  – fuse box diagram

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Mercedes-Benz SLK (R172; 2010 – present)  – fuse box diagram

Year of production: 2010, 20122, 2012, 2013, 2014, 2015, 2016, 2017, 2018

Fuse box  – location

Mercedes-Benz SLK (R172) - fuse box diagram - location
Mercedes-Benz SLK (R172) – fuse box diagram – location

F32 / F32/5 – Front prefuse box
N10/1 – Front SAM control unit with fuse and relay module
N10/2 – Rear SAM control unit with fuse and relay module

Fuse box in the engine compartment

Mercedes-Benz SLK (R172) - fuse box diagram - engine compartment
Mercedes-Benz SLK (R172) – fuse box diagram – engine compartment
No. Fused function A
1 Electronic Stability Program control unit 25
2 Vario roof control control unit 30
3 Vario roof control control unit 30
4 Headlamp control unit (up to model year 2017)
Valid for diesel engine: Fuel filter condensation sensor with heating element (up to model year 2017)		 20
5 Rear SAM control unit with fuse and relay module
Electrohydraulic power steering via engine compartment/FFS electrical connector (as of model year 2017)
Exterior lights switch (as of model year 2017)		 7.5
6 Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit		 10
7 Starter via starter circuit 50 relay 20
8 Supplemental Restraint System control unit 7.5
9 Vehicle interior socket, front
Cigarette lighter with ashtray illumination		 15
10 Wiper motor
Wiper park position heater (up to model year 2017)		 30
11 Audio/COMAND display
Audio/COMAND control panel		 7.5
12 ACC control and operating unit
Overhead control panel control unit
Steering column tube module control unit (as of model year 2017)		 7.5
13 Steering column tube module control unit
Multifunction camera		 7.5
14 Electronic Stability Program control unit 7.5
15 Supplemental Restraint System control unit 7.5
16 Radio fan electrical connector (as of model year 2017)
Valid with transmission 725: DIRECT SELECT INTERFACE (as of model year 2017)
Navigation module electrical connector (up to model year 2017)		 5
Valid for transmission 722: Electronic selector lever module control unit
Valid with transmission 725: DIRECT SELECT INTERFACE		 7.5
17 Left front lamp unit and right front lamp unit 30
Valid up to 31.05.2012: Overhead control panel control unit 7.5
18 Upper control panel control unit
Overhead control panel control unit
Backup relay (up to model year 2017)		 7.5
19 Valid with transmission 725: Electronic ignition lock control unit
Valid for manual transmission:
Electronic ignition lock control unit
Electric steering lock control unit		 20
20 Electronic Stability Program control unit 40
21 Glove compartment lamp 7.5
22 Fan motor for internal combustion engine and air conditioning with integrated control (as of model year 2017)
Valid for engine 152, 271, 274, 276, 651: Electrical connector for interior harness and engine wiring harness
Valid for engine 276, 651: Engine compartment/vehicle interior electrical connector
Valid for engine 152, 271, 276, 651: Circuit 87 M2e connector sleeve
Valid for engine 274: Connector sleeve, circuit 87/2
Valid for diesel engine:
CDI control unit
Engine compartment/FFS [RBA] electrical connector (up to model year 2017)		 15
23 Valid for engine 152, 271, 274, 276: Electrical connector for interior harness and engine wiring harness
Valid for diesel engine:
Quantity control valve
   Circuit 87 M1e connector sleeve (as of model year 2017)
Valid for engine 276: Engine compartment/vehicle interior electrical connector (up to model year 2017)		 20
24 Valid for engine 152, 271, 274, 276: Electrical connector for interior harness and engine wiring harness
Valid for engine 274: Coolant circulation pump relay
Valid for diesel engine:
Engine compartment/vehicle interior electrical connector
CDI control unit (up to model year 2017)
China vehicles: Radiator shutters actuator (as of model year 2017)		 15
25 Valid for engine 276: Circuit 87 M4e connector sleeve
Valid for engine 274: Circuit 87 M1 connector sleeve
Valid for engine 152: Circuit 87 connector sleeve
Valid for diesel engine: Oxygen sensor upstream of catalytic converter
Valid for engine 651: (as of 01.06.2015)
NOx sensor control unit downstream of diesel particulate filter
NOx sensor control unit downstream of SCR catalytic converter		 15
26 Left front lamp unit and right front lamp unit (as of model year 2017)
Radio (up to model year 2017)
COMAND controller unit (up to model year 2017)		 20
27 Electronic ignition lock control unit
Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit		 7.5
28 Instrument cluster
Analog clock		 7.5
29 Right headlamp range adjustment actuator motor (as of model year 2017)
Right front lamp unit (up to model year 2017)		 10
30 Left headlamp range adjustment actuator motor (as of model year 2017)
Left front lamp unit (up to model year 2017)		 10
31A Left fanfare horn
Right fanfare horn		 15
31B Left fanfare horn
Right fanfare horn		 15
32 Valid for engine 274: Electric air pump (as of model year 2017)
Valid for engine 651: AdBlue® control unit		 40
33 Valid for transmission 722: Fully integrated transmission control unit 10
34 Fuel system control unit
Valid for engine 651: AdBlue® control unit		 7.5
35 Electronic Stability Program control unit
Right outer rear bumper integrated radar sensor and left outer rear bumper integrated radar sensor (as of model year 2017)		 5
36 COLLISION PREVENTION ASSIST controller unit (as of model year 2017)
DISTRONIC electric controller unit
Left front bumper DISTRONIC (DTR) sensor (up to model year 2017)
Right front bumper DISTRONIC (DTR) sensor (up to model year 2017)		 7.5
Relay
J Circuit 15 relay
K Circuit 15R relay
L Reserve relay
M Starter circuit 50 relay
N Engine circuit 87 relay
O Horn relay
P Valid for engine 271, 274 or 651.9 as of 01.06.2015: Adblue®/secondary air injection relay
Q Valid up to 29.02.2016: Backup relay
R Chassis circuit 87 relay

Fuse box in the trunk

Mercedes-Benz SLK (R172) - fuse box diagram - trunk
Mercedes-Benz SLK (R172) – fuse box diagram – trunk
No. Fused function A
37 Driver seat NECK-PRO head restraint solenoid
Front passenger seat NECK-PRO head restraint solenoid		 7.5
38 Spare –
39 Left door control unit 30
40 Adaptive damping system control unit 15
41 Right door control unit 30
42 Fuel system control unit 25
43 Spare –
44 Spare –
45 Spare –
46 FM, AM and CL [ZV] antenna amplifier
FM 2, DAB and TV antenna amplifier (up to model year 2017)
Alarm siren
Interior protection sensor		 7.5
47 Spare –
48 Spare –
49 Rear window heater 30
50 Right reversible emergency tensioning retractor 50
51 Left reversible emergency tensioning retractor 50
52 Spare –
53 Spare –
54 Spare –
55 Spare –
56 Spare –
57 Spare –
58 Spare –
59 Electric parking brake control unit 5
60 Spare –
61 AIRSCARF control unit 25
62 Driver seat control unit 30
63 AIRSCARF control unit 25
64 Front passenger seat control unit 30
65 Valid for transmission 722, 725 (ECO start/stop) (up to model year 2017)
Electric oil pump		 10
66 Spare –
67 Sound system amplifier control unit 40
68 Engine sound control unit (as of model year 2017) 15
69 Radio (as of model year 2017)
COMAND controller unit (as of model year 2017)		 20
70 Tire pressure monitor control unit 5
71 Valid for engine 274: Left exhaust flap actuator motor (as of model year 2017) 7.5
72 Center console stowage compartment socket (up to model year 2017) 15
73 Valid for engine 274, 276: Charge air cooler circulation pump relay (as of model year 2017) 10
74 KEYLESS-GO control unit 7.5
75 Vario roof control control unit 20
76 MAGIC SKY CONTROL control unit 7.5
77 Cellular telephone system antenna amplifier / compensator 5
78 Media interface control unit (up to model year 2017) 7.5
79 Multimedia connection unit (as of model year 2017)
Radar sensors control unit (up to model year 2017)		 5
80 Parking system control unit 7.5
81 Mobile phone contact plate 5
82 Reversing camera (as of model year 2017) 5
83 Dedicated Short-Range Communications control unit (as of model year 2017)
VICS and Electronic Toll Collection power supply electrical connector (up to model year 2017)		 7.5
84 Digital Audio Broadcasting control unit (up to model year 2017)
Satellite digital audio radio (SDAR) control unit (up to model year 2017)		 5
85 Tuner unit (as of model year 2017)
Digital TV tuner (up to model year 2017)		 7.5
86 Camera cover control unit (as of model year 2017) 5
87 HERMES control unit (as of model year 2017)
eCall Russia control unit (GLONASS) (as of model year 2017)
Emergency call system control unit (up to model year 2017)		 7.5
88 Internal supply of rear SAM control unit with fuse and relay module 80
89 Electric parking brake control unit 30
90 Electric parking brake control unit 30
91 Spare –
92 Spare –
Relay
A Terminal 15 relay
B Circuit 15R relay (1)
C Heated rear window relay
D Fuel pump relay
R Spare
F Seat adjustment relay
G Circuit 15R relay (2)

Front prefuse box

ECO start/stop

Mercedes-Benz SLK (R172) - fuse box diagram - front prefuse - ECO start/stop
Mercedes-Benz SLK (R172) – fuse box diagram – front prefuse – ECO start/stop

Except ECO start/stop

Mercedes-Benz SLK (R172) - fuse box diagram - front prefuse - without ECO start/stop
Mercedes-Benz SLK (R172) – fuse box diagram – front prefuse – without ECO start/stop
No. Fused function A
150 Spare –
151 Fan motor for internal combustion engine and air conditioning with integrated control 100
152 Front SAM control unit with fuse and relay module 150
153 ECO start/stop: Front SAM control unit with fuse and relay module
except ECO start/stop: Spare		 100
ECO start/stop (as of model year 2017): Front SAM control unit with fuse and relay module 60
154 except ECO start/stop: Front SAM control unit with fuse and relay module
ECO start/stop: Spare		 100
155 Spare –
156 Spare –
157 Valid as of 01.06.2015 Electrohydraulic power steering 100
As of model year 2017: Electrohydraulic power steering 120
158 Blower regulator and blower motor 50
As of model year 2017: Blower regulator and blower motor 40
159 Vario roof control control unit 40
160 Valid with transmission 725: Fully integrated transmission control controller unit 60
161 Front SAM control unit with fuse and relay module 100
162 Spare –
163 Rear SAM control unit with fuse and relay module 150
As of model year 2017: Rear SAM control unit with fuse and relay module 200
164 ECO start/stop: Supply via ECO start/stop function additional battery
except ECO start/stop: Supply from on-board electrical system battery		 100
As of model year 2017: Supply via ECO start/stop function additional battery 200

ECO start/stop function additional battery relay

Mercedes-Benz SLK (R172) - fuse box diagram - ECO start/stop function additional battery relay
Mercedes-Benz SLK (R172) – fuse box diagram – ECO start/stop function additional battery relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz B-Class w242, w246 (2012 – present)  – fuse box diagram

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Mercedes-Benz B-Class w242, w246 (2012 – present)  – fuse box diagram

Year of production: 2012, 2013, 2014, 2015, 2016, 2017, 2018

Fuse box in the engine compartment

Mercedes-Benz B-Class w242, w246 - fuse box diagram - engine compartment
Mercedes-Benz B-Class w242, w246 – fuse box diagram – engine compartment
No. Fused function A
201 Alarm siren 5
202 Stationary heater control unit 20
Electric Drive (W242): Park pawl control unit circuit 87 relay 5
203 LED headlamp: Right front lamp unit 15
Electric Drive (W242): Powertrain control unit 5
204 Electronic Stability Program control unit 25
205 Left fanfare horn
Right fanfare horn		 15
206 Valid for engine 651: CDI control unit
Valid for engine 607: Powertrain control unit
Electric Drive (W242):
Brake booster vacuum pump relay
Circuit relay87M		 5
207 Valid for diesel engine: Circuit relay87M
Electric Drive (W242):
High-voltage battery cooling shutoff valve
Park pawl control unit		 5
208 Valid for engine 133, 607: Circuit 87 relay 7.5
Electric Drive (W242): Fan motor 5
209 LED headlamp: Left front lamp unit 15
Electric Drive (W242): Spare –
210 Heated windshield relay 5
as of 03.11.2014 except (Canada version): Starter front-end relay 5
211 Natural Gas Drive (W242): CNG control unit 7.5
Electric Drive (W242): Heater circuit circulation pump 15
212 Valid for engine 133, 270: Connector sleeve, circuit 87M3
Valid for engine 651:
Vent line heater element
Coolant thermostat heating element
Exhaust gas recirculation cooler bypass switchover valve
Valid for engine 607 (Emissions standard EU5):
Oxygen sensor upstream of catalytic converter
Boost pressure positioner
Valid for engine 607 (Emissions standard EU6): Oxygen sensor upstream of catalytic converter
Valid for engine 607: CDI control unit
Electric Drive (W242): Electric drive and charger coolant pump		 15
213 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M2e
Valid for engine 607 (Emissions standard EU5):
Camshaft Hall sensor
CDI control unit
Quantity control valve
Valid for engine 607 (Emissions standard EU6):
Oxygen sensor downstream of catalytic converter
CDI control unit
Electric Drive (W242): Battery cooling system coolant pump 1		 15
214 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M4e 10
Electric Drive (W242): Battery cooling system coolant pump 2 15
215 Valid for gasoline engine:
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil
Cylinder 4 ignition coil
Valid for engine 651: Quantity control valve
Valid for engine 607:
CDI control unit
Boost pressure positioner
Quantity control valve		 20
Electric Drive (W242):
Thermal management control unit
Gateway powertrain control unit
Electric Drive (W242) as of 03.11.2014: High-voltage power distributor		 5
216 Valid for gasoline engine: ME-SFI control unit
Valid for engine 607: Powertrain control unit		 5
217 Valid with transmission 724: Dual clutch transmission fully integrated transmission control unit 25
218 Electronic Stability Program control unit 5
219 Electric Drive (W242): Park pawl control unit 5
220 Transmission cooling coolant circulation pump 10
221 Electric Drive (W242): Vacuum pump 40
222 Electric Drive (W242): Electrical refrigerant compressor 7.5
223 Spare –
224 DISTRONIC electric controller unit
COLLISION PREVENTION ASSIST controller unit		 7.5
225 Electric Drive (W242): Powertrain control unit 5
226 Natural Gas Drive (W242): CNG control unit
Electric Drive (W242):
Charger control unit
Power electronics control unit		 5
227 Electric Drive (W242): Power electronics control unit 5
228 Electric Drive (W242): Electric vehicle sound generator 5
229 Left front lamp unit 5
230 Electronic Stability Program control unit 5
231 Right front lamp unit 5
232 Headlamp control unit 15
233 Spare –
234 Valid for engine 607: Powertrain control unit 5
Electric Drive (W242): High-voltage power distributor 10
235 Valid for engine 607:
Fan motor
Radiator shutters actuator		 7.5
Valid for engine 133:
Charge air cooler circulation pump
Charge air cooler circulation pump		 7.5
236 SAM control unit 40
237 Electronic Stability Program control unit 40
238 Heated windshield 50
239 Wiper speed 1/2 relay 30
240A Starter circuit 50 relay 25
Electric Drive (W242): Powertrain control unit 7.5
240B Circuit 15 relay (not latched) 25
241 Electric Drive (W242): High-voltage PTC heater 7.5
Relay
J Fanfare horn relay
K Wiper speed 1/2 relay
L Windshield wiper ON/OFF relay
M Starter circuit 50 relay
Electric Drive (W242): Circuit 87C relay
N Circuit relay87M
O ECO start/stop: Transmission cooling coolant circulation pump relay
Electric Drive (W242): Park pawl control unit circuit 87 relay
P Backup relay (F58kP)
Q Circuit 15 relay (not latched)
Electric Drive (W242): Brake booster vacuum pump supply relay (F58kQ)
R Circuit 15 relay
S Circuit 87 relay
T Heated windshield relay

Fuse box in the front-passenger foot-well

Mercedes-Benz B-Class w242, w246 - fuse box diagram - front passenger foot-well
Mercedes-Benz B-Class w242, w246 – fuse box diagram – front passenger foot-well
No. Fused function A
21 Valid for diesel engine: PTC heater booster 150
22 Additional battery relay for ECO start/stop function 200
23 Left front door control unit 30
24 Right front door control unit 30
25 SAM control unit 30
26 ECO start/stop additional battery connector sleeve 10
27 Engine compartment fuse and relay module 30
28 Vehicle interior sound generator control unit
Electric Drive (W242): Thermal management control unit		 5
29 up to 02.11.2014: Trailer socket
as of 03.11.2014: Trailer recognition control unit		 15
30 Trailer recognition control unit 5
31 4MATIC: All-wheel drive control unit 5
32 Steering column tube module control unit 5
33 Audio/COMAND control panel 5
34 ACC control and operating unit 7,5
35 Rear window heater 40
36 Driver seat control unit
Driver seat lumbar support adjustment control unit		 7,5
37 Audio/COMAND display 7,5
38 Supplemental Restraint System control unit 7,5
39 Overhead control panel control unit 10
40 Valid for engine 651 (Emissions standard EU6): Powertrain control unit 15
Electric Drive (W242): Powertrain control unit 5
41 Panoramic sliding sunroof control module 30
42 Radio (Audio 5 USB, Audio 20 CD, Audio 20 CD with CD changer)
COMAND controller unit		 5
Radio (Radio 20, Audio 20 USB) 25
43 Parking system control unit 5
44 Left front reversible emergency tensioning retractor 40
45 Right front reversible emergency tensioning retractor 40
46 Front passenger seat control unit
Front passenger seat lumbar support adjustment control unit		 7,5
47 Navigation module 7,5
Adaptive damping system control unit 25
48 Spare –
49 Control unit for Drive Kit for iPhone® 7,5
COMAND fan motor 5
50 Spare –
51 Spare –
52 Electric Drive (W242): Park pawl actuator motor 30
53 Spare –
54 Spare –
55 Telematics services communications module
KEYLESS-GO control unit		 5
56 Steering column tube module control unit 10
57 Lane Keeping Assist: Special-purpose vehicle multifunction control unit 30
Special vehicle: Special-purpose vehicle multifunction control unit 7.5
Electric Drive (W242): Park pawl actuator motor circuit 87 relay (F34kG) 5
58 Emergency vehicle fuse box 30
59 Front passenger seat control uni 30
60 Driver seat control unit 30
61 Sound system amplifier control unit 40
62 Valid for transmission 711: Electric steering lock control unit 20
63 Fuel system control unit 25
Electric Drive (W242): Gateway powertrain control unit 5
64 Electronic Toll Collection control unit
Dedicated Short-Range Communications control unit		 1
65 Glove compartment lamp 5
66 Emergency vehicle fuse box 15
Special-purpose vehicle interface 5
67 Spare –
68 Spare –
69 Spare –
70 Rear center console socket 25
71 Luggage compartment socket 25
72 Front cigarette lighter with ashtray illumination
Vehicle interior power outlet		 25
73 Electric parking brake control unit 30
74 Electric parking brake control unit 30
75 Trailer recognition control unit 20
Electric Drive (W242): Battery management system control unit (N82/2) 5
76 Trailer recognition control unit (N28/1) 25
Electric Drive (W242): Park pawl control unit 5
77 Trailer recognition control unit 25
78 Emergency vehicle fuse box 40
79 SAM control unit 40
80 SAM control unit 40
81 Blower regulator 40
82 Overhead control panel control unit 10
83 Electronic ignition lock control unit 7,5
84 Upper control panel control unit 5
85 ATA [EDW]/tow-away protection/interior protection control unit 5
86 FM, AM and CL [ZV] antenna amplifier
as of 01.06.2016: Cellular telephone system antenna amplifier / compensator		 5
87 Diagnostic connector 10
88 Instrument cluster 10
89 Exterior lights switch 5
90 Left rear bumper intelligent radar sensor
Intelligent radar sensor for right rear bumper		 5
91 Pedal operation monitor switch
Footwell illumination switch
Electric Drive (W242): Battery management system control unit		 5
92 Fuel system control unit
Electric Drive (W242): Gateway powertrain control unit		 5
93 Electric parking brake control unit 5
94 Supplemental Restraint System control unit 7,5
95 Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit		 7,5
96 Tailgate wiper motor 15
97 Mobile phone electrical connector 5
98 SAM control unit 5
99 Tire pressure monitor control unit 5
100 Valid for engine 133: DIRECT SELECT INTERFACE 5
101 4MATIC: All-wheel drive control unit 10
102 Stationary heater radio remote control receiver
Electric Drive (W242): Powertrain control unit
Valid for AMG vehicles as of 01.09.2015: Transmission mode control unit
as of 01.06.2016: Antenna changeover switch for telephone and stationary heater		 5
103 Emergency call system control unit
Telematics services communications module
HERMES control unit		 5
104 Media interface control unit
Multimedia connection unit		 5
105 Digital Audio Broadcasting control unit
Satellite digital audio radio (SDAR) control unit		 5
Tuner unit 7,5
106 Multifunction camera 5
107 Digital TV tuner 5
108 up to 31.05.2016: Reversing camera 5
as of 01.06.2016: Reversing camera 7,5
109 Charging socket electrical connector 20
110 Radio
COMAND controller unit
Engine sound control unit		 30
Relay
A Circuit 15 relay
B Rear window wiper relay
C Circuit 15R2 relay
D Heated rear window relay
E Circuit 15R1 relay
F Circuit 30g relay
G Electric Drive (W242): Park pawl actuator motor circuit 87 relay

Front electrical prefuse box

Mercedes-Benz B-Class w242, w246 - fuse box diagram - front electrical prefuse box
Mercedes-Benz B-Class w242, w246 – fuse box diagram – front electrical prefuse box
Mercedes-Benz B-Class w242, w246 - fuse box diagram - front electrical prefuse box
Mercedes-Benz B-Class w242, w246 – fuse box diagram – front electrical prefuse box
No. Fused function A
1 Alternator 300
Electric Drive (W242): DC/DC converter control unit 400
2 Vehicle interior fuse box 200
Valid for diesel engine: Vehicle interior fuse box 250
3 Electrical power steering control unit 100
4 SAM control unit 40
5 Fan motor 80
6 Valid for engine 607: Fuel preheating control unit 70
7 Valid for engine 607 (Emissions standard EU5): DPF regeneration heater booster control unit 125
8 Valid for engine 607, 651: Glow output stage 100
Relay
F32k1 Decoupling relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz A-Class w176 (2012 – 2018)  – fuse box diagram

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Mercedes-Benz A-Class w176 (2012 – 2018)  – fuse box diagram

Year of production: 2012, 2013, 2014, 2015, 2016, 2017, 2018

Fuse box in the engine compartment

Mercedes-Benz A-Class w176 - fuse box diagram - engine compartment
Mercedes-Benz A-Class w176 – fuse box diagram – engine compartment
No. Fused function A
201 Alarm siren 5
202 Stationary heater control unit 20
203 LED headlamp: Right front lamp unit 15
204 Electronic Stability Program control unit 25
205 Left fanfare horn
Right fanfare horn		 15
206 Valid for engine 651: CDI control unit
Valid for engine 607: Powertrain control unit		 5
207 Valid for diesel engine: Circuit relay87M 5
208 Valid for engine 133, 607: Circuit 87 relay 7.5
209 LED headlamp: Left front lamp unit 15
210 Heated windshield relay
as of 01.09.2015: Starter front-end relay		 5
211 Not used –
212 Valid for engine 133, 270: Connector sleeve, circuit 87M3
Valid for engine 651:
Vent line heater element
Coolant thermostat heating element
Exhaust gas recirculation cooler bypass switchover valve
Valid for engine 607 (Emissions standard EU5):
Oxygen sensor upstream of catalytic converter
Boost pressure positioner
Valid for engine 607 (Emissions standard EU6): Oxygen sensor upstream of catalytic converter
Valid for engine 607: CDI control unit		 15
213 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M2e
Valid for engine 607 (Emissions standard EU5):
Camshaft Hall sensor
CDI control unit
Quantity control valve
Valid for engine 607 (Emissions standard EU6):
Oxygen sensor downstream of catalytic converter
CDI control unit		 15
214 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M4e 10
215 Valid for gasoline engine:
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil
Cylinder 4 ignition coil
Valid for engine 651: Quantity control valve
Valid for engine 607:
CDI control unit
Boost pressure positioner
Quantity control valve		 20
216 Valid for gasoline engine: ME-SFI control unit
Valid for engine 607: Powertrain control unit		 5
217 Valid with transmission 724: Dual clutch transmission fully integrated transmission control unit 25
218 Electronic Stability Program control unit 5
219 Not used –
220 Transmission cooling coolant circulation pump 10
221 Not used –
222 Not used –
223 Not used –
224 DISTRONIC electric controller unit
COLLISION PREVENTION ASSIST controller unit		 7.5
225 Not used –
226 Not used –
227 Not used –
228 Not used –
229 Left front lamp unit 5
230 Electronic Stability Program control unit 5
231 Right front lamp unit 5
232 Headlamp control unit 15
233 Not used –
234 Valid for engine 607: Powertrain control unit 5
235 Valid for engine 607:
Fan motor
Radiator shutters actuator		 7.5
Valid for engine 133:
Charge air cooler circulation pump
Charge air cooler circulation pump		 7.5
236 SAM control unit 40
237 Electronic Stability Program control unit 40
238 Heated windshield 50
239 Wiper speed 1/2 relay 30
240A Starter circuit 50 relay 25
240B Circuit 15 relay (not latched) 25
241 Not used 7.5
Relay
J Fanfare horn relay
K Wiper speed 1/2 relay
L Windshield wiper ON/OFF relay
M Starter circuit 50 relay
N Circuit relay87M
O ECO start/stop: Transmission cooling coolant circulation pump relay
P Backup relay (F58kP)
Q Circuit 15 relay (not latched)
R Circuit 15 relay
S Circuit 87 relay
T Heated windshield relay

Fuse box in the front-passenger foot-well

Mercedes-Benz A-Class w176 - fuse box diagram - front passenger foot-well
Mercedes-Benz A-Class w176 – fuse box diagram – front passenger foot-well
No. Fused function A
21 Valid for diesel engine: PTC heater booster 150
22 Additional battery relay for ECO start/stop function 200
23 Left front door control unit 30
24 Right front door control unit 30
25 SAM control unit 30
26 ECO start/stop additional battery connector sleeve 10
27 Engine compartment fuse and relay module 30
28 Vehicle interior sound generator control unit 5
29 up to 02.11.2014: Trailer socket
as of 03.11.2014: Trailer recognition control unit		 15
30 Trailer recognition control unit 5
31 4MATIC: All-wheel drive control unit 5
32 Steering column tube module control unit 5
33 Audio/COMAND control panel 5
34 ACC control and operating unit 7,5
35 Rear window heater 40
36 Driver seat control unit
Driver seat lumbar support adjustment control unit		 7,5
37 Audio/COMAND display 7,5
38 Supplemental Restraint System control unit 7,5
39 Overhead control panel control unit 10
40 Valid for engine 651 (Emissions standard EU6): Powertrain control unit 15
41 Panoramic sliding sunroof control module 30
42 Radio (Audio 5 USB, Audio 20 CD, Audio 20 CD with CD changer)
COMAND controller unit		 5
Radio (Radio 20, Audio 20 USB) 25
43 Parking system control unit 5
44 Left front reversible emergency tensioning retractor 40
45 Right front reversible emergency tensioning retractor 40
46 Front passenger seat control unit
Front passenger seat lumbar support adjustment control unit		 7,5
47 Navigation module
iPhone® cradle control unit		 7,5
Adaptive damping system control unit 25
48 Not used –
49 Control unit for Drive Kit for iPhone® 7,5
COMAND fan motor 5
50 Camera cover control unit 5
51 Not used –
52 Not used –
53 Not used –
54 Not used –
55 Telematics services communications module
KEYLESS-GO control unit		 5
56 Steering column tube module control unit 10
57 Lane Keeping Assist: Special-purpose vehicle multifunction control unit 30
Special vehicle: Special-purpose vehicle multifunction control unit 7.5
58 Emergency vehicle fuse box 30
59 Front passenger seat control uni 30
60 Driver seat control unit 30
61 Sound system amplifier control unit 40
62 Valid for transmission 711: Electric steering lock control unit 20
63 Fuel system control unit 25
64 Electronic Toll Collection control unit
Dedicated Short-Range Communications control unit		 1
65 Glove compartment lamp 5
66 Emergency vehicle fuse box 15
67 Not used –
68 Not used –
69 Not used –
70 Rear center console socket 25
71 Luggage compartment socket 25
72 Front cigarette lighter with ashtray illumination
Vehicle interior power outlet		 25
73 Electric parking brake control unit 30
74 Electric parking brake control unit 30
75 Trailer recognition control unit 20
76 Trailer recognition control unit 25
77 Trailer recognition control unit 25
78 Emergency vehicle fuse box 40
79 SAM control unit 40
80 SAM control unit 40
81 Blower regulator 40
82 Overhead control panel control unit 10
83 Electronic ignition lock control unit 7,5
84 Upper control panel control unit 5
85 ATA [EDW]/tow-away protection/interior protection control unit 5
86 FM, AM and CL [ZV] antenna amplifier
as of 01.06.2016: Cellular telephone system antenna amplifier / compensator		 5
87 Diagnostic connector 10
88 Instrument cluster 10
89 Exterior lights switch 5
90 Left rear bumper intelligent radar sensor
Intelligent radar sensor for right rear bumper		 5
91 Pedal operation monitor switch
Footwell illumination switch		 5
92 Fuel system control unit 5
93 Electric parking brake control unit 5
94 Supplemental Restraint System control unit 7,5
95 Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit		 7,5
96 Tailgate wiper motor 15
97 Mobile phone electrical connector 5
98 SAM control unit 5
99 Tire pressure monitor control unit 5
100 Valid for engine 133: DIRECT SELECT INTERFACE 5
101 4MATIC: All-wheel drive control unit 10
102 Stationary heater radio remote control receiver
Valid for AMG vehicles as of 01.09.2015: Transmission mode control unit
as of 01.06.2016: Antenna changeover switch for telephone and stationary heater		 5
103 Emergency call system control unit
Telematics services communications module
HERMES control unit		 5
104 Media interface control unit
Multimedia connection unit		 5
105 Digital Audio Broadcasting control unit
Satellite digital audio radio (SDAR) control unit		 5
Tuner unit 7,5
106 Multifunction camera 5
107 Digital TV tuner 5
108 up to 31.05.2016: Reversing camera 5
as of 01.06.2016: Reversing camera 7,5
109 Charging socket electrical connector 20
110 Radio
COMAND controller unit
Engine sound control unit		 30
Relay
A Circuit 15 relay
B Rear window wiper relay
C Circuit 15R2 relay
D Heated rear window relay
E Circuit 15R1 relay
F Circuit 30g relay
G Not used

Front electrical prefuse box

Mercedes-Benz A-Class w176 - fuse box diagram - front electrical prefuse box
Mercedes-Benz A-Class w176 – fuse box diagram – front electrical prefuse box
Mercedes-Benz A-Class w176 - fuse box diagram - front electrical prefuse box
Mercedes-Benz A-Class w176 – fuse box diagram – front electrical prefuse box
No. Fused function A
1 Alternator 300
2 Vehicle interior fuse box 200
Valid for diesel engine: Vehicle interior fuse box 250
3 Electrical power steering control unit 100
4 SAM control unit 40
5 Fan motor 80
6 Valid for engine 607: Fuel preheating control unit 70
7 Valid for engine 607 (Emissions standard EU5): DPF regeneration heater booster control unit 125
8 Valid for engine 607, 651: Glow output stage 100
Relay
F32k1 Decoupling relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz CLA-Class – fuse box diagram

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Mercedes-Benz CLA-Class – fuse box diagram

Year of production:

Fuse box in the front-passenger foot-well

Mercedes-Benz CLA-Class - fuse box diagram - front passenger foot-well
Mercedes-Benz CLA-Class – fuse box diagram – front passenger foot-well
No. Fused function A
21 Valid for diesel engine: PTC heater booster 150
22 Additional battery relay for ECO start/stop function 200
23 Left front door control unit 30
24 Right front door control unit 30
25 SAM control unit 30
26 ECO start/stop additional battery connector sleeve 10
27 Engine compartment fuse and relay module 30
28 Vehicle interior sound generator control unit 5
29 up to 02.11.2014: Trailer socket
as of 03.11.2014: Trailer recognition control unit		 15
30 Trailer recognition control unit 5
31 4MATIC: All-wheel drive control unit 5
32 Steering column tube module control unit 5
33 Audio/COMAND control panel 5
34 ACC control and operating unit 7,5
35 Rear window heater 40
36 Driver seat control unit
Driver seat lumbar support adjustment control unit		 7,5
37 Audio/COMAND display 7,5
38 Supplemental Restraint System control unit 7,5
39 Overhead control panel control unit 10
40 Valid for engine 651 (Emissions standard EU6): Powertrain control unit 15
41 Panoramic sliding sunroof control module 30
42 Radio (Audio 5 USB, Audio 20 CD, Audio 20 CD with CD changer)
COMAND controller unit		 5
Radio (Radio 20, Audio 20 USB) 25
43 Parking system control unit 5
44 Left front reversible emergency tensioning retractor 40
45 Right front reversible emergency tensioning retractor 40
46 Front passenger seat control unit
Front passenger seat lumbar support adjustment control unit		 7,5
47 Navigation module 7,5
Adaptive damping system control unit 25
48 Not used –
49 Control unit for Drive Kit for iPhone® 7,5
COMAND fan motor 5
50 Camera cover control unit 5
51 Not used –
52 Not used –
53 Not used –
54 Not used –
55 Telematics services communications module
KEYLESS-GO control unit		 5
56 Steering column tube module control unit 10
57 Lane Keeping Assist: Special-purpose vehicle multifunction control unit 30
Special vehicle: Special-purpose vehicle multifunction control unit 7.5
58 Emergency vehicle fuse box 30
59 Front passenger seat control uni 30
60 Driver seat control unit 30
61 Sound system amplifier control unit 40
62 Valid for transmission 711: Electric steering lock control unit 20
63 Fuel system control unit 25
64 Electronic Toll Collection control unit
Dedicated Short-Range Communications control unit		 1
65 Glove compartment lamp 5
66 Emergency vehicle fuse box 15
67 Not used –
68 Not used –
69 Not used –
70 Rear center console socket 25
71 Luggage compartment socket 25
72 Front cigarette lighter with ashtray illumination
Vehicle interior power outlet		 25
73 Electric parking brake control unit 30
74 Electric parking brake control unit 30
75 Trailer recognition control unit 20
76 Trailer recognition control unit 25
77 Trailer recognition control unit 25
78 Trunk lid/liftgate control control unit
Emergency vehicle fuse box		 40
79 SAM control unit 40
80 SAM control unit 40
81 Blower regulator 40
82 Overhead control panel control unit 10
83 Electronic ignition lock control unit 7,5
84 Upper control panel control unit 5
85 ATA [EDW]/tow-away protection/interior protection control unit 5
86 FM, AM and CL [ZV] antenna amplifier
as of 01.06.2016: Cellular telephone system antenna amplifier / compensator		 5
87 Diagnostic connector 10
88 Instrument cluster 10
89 Exterior lights switch 5
90 Left rear bumper intelligent radar sensor
Intelligent radar sensor for right rear bumper		 5
91 Pedal operation monitor switch
Footwell illumination switch		 5
92 Fuel system control unit 5
93 Electric parking brake control unit 5
94 Supplemental Restraint System control unit 7,5
95 Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit		 7,5
96 Tailgate wiper motor 15
97 Mobile phone electrical connector 5
98 SAM control unit 5
99 Tire pressure monitor control unit 5
100 Valid for engine 133: DIRECT SELECT INTERFACE 5
101 4MATIC: All-wheel drive control unit 10
102 Stationary heater radio remote control receiver
Valid for AMG vehicles as of 01.09.2015: Transmission mode control unit
as of 01.06.2016: Antenna changeover switch for telephone and stationary heater		 5
103 Emergency call system control unit
Telematics services communications module
HERMES control unit		 5
104 Media interface control unit
Multimedia connection unit		 5
105 Digital Audio Broadcasting control unit
Satellite digital audio radio (SDAR) control unit		 5
Tuner unit 7,5
106 Multifunction camera 5
107 Digital TV tuner 5
108 up to 31.05.2016: Reversing camera 5
as of 01.06.2016: Reversing camera 7,5
109 Charging socket electrical connector 20
110 Radio
COMAND controller unit
Engine sound control unit		 30
Relay
A Circuit 15 relay
B Rear window wiper relay
C Circuit 15R2 relay
D Heated rear window relay
E Circuit 15R1 relay
F Circuit 30g relay
G Not used

Fuse box in the engine compartment

Mercedes-Benz CLA-Class - fuse box diagram - engine compartment
Mercedes-Benz CLA-Class – fuse box diagram – engine compartment
No. Fused function A
201 Alarm siren 5
202 Stationary heater control unit 20
203 LED headlamp: Right front lamp unit 15
204 Electronic Stability Program control unit 25
205 Left fanfare horn
Right fanfare horn		 15
206 Valid for engine 651: CDI control unit
Valid for engine 607: Powertrain control unit		 5
207 Valid for diesel engine: Circuit relay87M 5
208 Valid for engine 133, 607: Circuit 87 relay 7.5
209 LED headlamp: Left front lamp unit 15
210 Heated windshield relay 5
211 Not used –
212 Valid for engine 133, 270: Connector sleeve, circuit 87M3
Valid for engine 651:
Vent line heater element
Coolant thermostat heating element
Exhaust gas recirculation cooler bypass switchover valve
Valid for engine 607 (Emissions standard EU5):
Oxygen sensor upstream of catalytic converter
Boost pressure positioner
Valid for engine 607 (Emissions standard EU6): Oxygen sensor upstream of catalytic converter
Valid for engine 607: CDI control unit		 15
213 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M2e
Valid for engine 607 (Emissions standard EU5):
Camshaft Hall sensor
CDI control unit
Quantity control valve
Valid for engine 607 (Emissions standard EU6):
Oxygen sensor downstream of catalytic converter
CDI control unit		 15
214 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M4e 10
215 Valid for gasoline engine:
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil
Cylinder 4 ignition coil
Valid for engine 651: Quantity control valve
Valid for engine 607:
CDI control unit
Boost pressure positioner
Quantity control valve		 20
216 Valid for gasoline engine: ME-SFI control unit
Valid for engine 607: Powertrain control unit		 5
217 Valid with transmission 724: Dual clutch transmission fully integrated transmission control unit 25
218 Electronic Stability Program control unit 5
219 Not used –
220 Transmission cooling coolant circulation pump 10
221 Not used –
222 Not used –
223 Not used –
224 DISTRONIC electric controller unit
COLLISION PREVENTION ASSIST controller unit		 7.5
225 Not used –
226 Not used –
227 Not used –
228 Not used –
229 Left front lamp unit 5
230 Electronic Stability Program control unit 5
231 Right front lamp unit 5
232 Headlamp control unit 15
233 Not used –
234 Valid for engine 607: Powertrain control unit 5
235 Valid for engine 607:
Fan motor
Radiator shutters actuator		 7.5
Valid for engine 133:
Charge air cooler circulation pump
Charge air cooler circulation pump		 7.5
236 SAM control unit 40
237 Electronic Stability Program control unit 40
238 Heated windshield 50
239 Wiper speed 1/2 relay 30
240A Starter circuit 50 relay 25
240B Circuit 15 relay (not latched) 25
241 Not used 7.5
Relay
J Fanfare horn relay
K Wiper speed 1/2 relay
L Windshield wiper ON/OFF relay
M Starter circuit 50 relay
N Circuit relay87M
O ECO start/stop: Transmission cooling coolant circulation pump relay
P Backup relay (F58kP)
Q Circuit 15 relay (not latched)
R Circuit 15 relay
S Circuit 87 relay
T Heated windshield relay

Front electrical prefuse box

Mercedes-Benz CLA-Class - fuse box diagram - front electrical prefuse box
Mercedes-Benz CLA-Class – fuse box diagram – front electrical prefuse box
Mercedes-Benz CLA-Class - fuse box diagram - front electrical prefuse box
Mercedes-Benz CLA-Class – fuse box diagram – front electrical prefuse box
No. Fused function A
1 Alternator 300
2 Vehicle interior fuse box 200
Valid for diesel engine: Vehicle interior fuse box 250
3 Electrical power steering control unit 100
4 SAM control unit 40
5 Fan motor 80
6 Valid for engine 607: Fuel preheating control unit 70
7 Valid for engine 607 (Emissions standard EU5): DPF regeneration heater booster control unit 125
8 Valid for engine 607, 651: Glow output stage 100
Relay
F32k1 Decoupling relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz GLA-Class – fuse box diagram

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Mercedes-Benz GLA-Class – fuse box diagram

Year of production:

Front electrical prefuse box

Mercedes-Benz GLA-Class - fuse bo -diagram - front electrical prefuse box
Mercedes-Benz GLA-Class – fuse bo -diagram – front electrical prefuse box
No. Fused function A
1 Alternator 300
2 Vehicle interior fuse box 200
Valid for diesel engine: Vehicle interior fuse box 250
3 Electrical power steering control unit 100
4 SAM control unit 40
5 Fan motor 80
6 Valid for engine 607: Fuel preheating control unit 70
7 Valid for engine 607 (Emissions standard EU5): DPF regeneration heater booster control unit 125
8 Valid for engine 607, 651: Glow output stage 100
Relay
F32k1 Decoupling relay

Fuse box in the front-passenger foot-well

Mercedes-Benz GLA-Class - fuse box diagram - front passenger foot well
Mercedes-Benz GLA-Class – fuse box diagram – front passenger foot well
No. Fused function A
21 Valid for diesel engine: PTC heater booster 150
22 Additional battery relay for ECO start/stop function 200
23 Left front door control unit 30
24 Right front door control unit 30
25 SAM control unit 30
26 ECO start/stop additional battery connector sleeve 10
27 Engine compartment fuse and relay module 30
28 Vehicle interior sound generator control unit 5
29 up to 02.11.2014: Trailer socket
as of 03.11.2014: Trailer recognition control unit		 15
30 Trailer recognition control unit 5
31 4MATIC: All-wheel drive control unit 5
32 Steering column tube module control unit 5
33 Audio/COMAND control panel 5
34 ACC control and operating unit 7,5
35 Rear window heater 30
36 Driver seat control unit
Driver seat lumbar support adjustment control unit		 7,5
37 Audio/COMAND display 7,5
38 Supplemental Restraint System control unit 7,5
39 Overhead control panel control unit 10
40 Valid for engine 651 (Emissions standard EU6): Powertrain control unit 15
41 Panoramic sliding sunroof control module 30
42 Radio (Audio 5 USB, Audio 20 CD, Audio 20 CD with CD changer)
COMAND controller unit		 5
Radio (Radio 20, Audio 20 USB) 25
43 Parking system control unit 5
44 Left front reversible emergency tensioning retractor 40
45 Right front reversible emergency tensioning retractor 40
46 Front passenger seat control unit
Front passenger seat lumbar support adjustment control unit		 7,5
47 Navigation module 7,5
Adaptive damping system control unit 25
48 Not used –
49 Control unit for Drive Kit for iPhone® 7,5
COMAND fan motor 5
50 Camera cover control unit 5
51 Not used –
52 Not used –
53 Not used –
54 Not used –
55 Telematics services communications module
KEYLESS-GO control unit		 5
56 Steering column tube module control unit 10
57 Lane Keeping Assist: Special-purpose vehicle multifunction control unit 30
Special vehicle: Special-purpose vehicle multifunction control unit 7.5
58 Emergency vehicle fuse box 30
59 Front passenger seat control uni 30
60 Driver seat control unit 30
61 Sound system amplifier control unit 40
62 Valid for transmission 711: Electric steering lock control unit 20
63 Fuel system control unit 25
64 Electronic Toll Collection control unit
Dedicated Short-Range Communications control unit		 1
65 Glove compartment lamp 5
66 Emergency vehicle fuse box 15
67 Not used –
68 Not used –
69 Not used –
70 Rear center console socket 25
71 Luggage compartment socket 25
72 Front cigarette lighter with ashtray illumination
Vehicle interior power outlet		 25
73 Electric parking brake control unit 30
74 Electric parking brake control unit 30
75 Trailer recognition control unit 20
76 Trailer recognition control unit 25
77 Trailer recognition control unit 25
78 Trunk lid/liftgate control control unit
Emergency vehicle fuse box		 40
79 SAM control unit 40
80 SAM control unit 40
81 Blower regulator 40
82 Overhead control panel control unit 10
83 Electronic ignition lock control unit 7,5
84 Upper control panel control unit 5
85 ATA [EDW]/tow-away protection/interior protection control unit 5
86 FM, AM and CL [ZV] antenna amplifier
as of 01.06.2016: Cellular telephone system antenna amplifier / compensator		 5
87 Diagnostic connector 10
88 Instrument cluster 10
89 Exterior lights switch 5
90 Left rear bumper intelligent radar sensor
Intelligent radar sensor for right rear bumper		 5
91 Pedal operation monitor switch
Footwell illumination switch		 5
92 Fuel system control unit 5
93 Electric parking brake control unit 5
94 Supplemental Restraint System control unit 7,5
95 Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit		 7,5
96 Tailgate wiper motor 15
97 Mobile phone electrical connector 5
98 SAM control unit 5
99 Tire pressure monitor control unit 5
100 Valid for engine 133: DIRECT SELECT INTERFACE 5
101 4MATIC: All-wheel drive control unit 10
102 Stationary heater radio remote control receiver
Valid for AMG vehicles as of 01.09.2015: Transmission mode control unit
as of 01.06.2016: Antenna changeover switch for telephone and stationary heater		 5
103 Emergency call system control unit
Telematics services communications module
HERMES control unit		 5
104 Media interface control unit
Multimedia connection unit		 5
105 Digital Audio Broadcasting control unit
Satellite digital audio radio (SDAR) control unit		 5
Tuner unit 7,5
106 Multifunction camera 5
107 Digital TV tuner 5
108 up to 31.05.2016: Reversing camera 5
as of 01.06.2016: Reversing camera 7,5
109 Charging socket electrical connector 20
110 Radio
COMAND controller unit
Engine sound control unit		 30
Relay
A Circuit 15 relay
B Rear window wiper relay
C Circuit 15R2 relay
D Heated rear window relay
E Circuit 15R1 relay
F Circuit 30g relay
G Not used

Fuse box in the engine compartment

Mercedes-Benz GLA-Class - fuse box diagram - engine compartment
Mercedes-Benz GLA-Class – fuse box diagram – engine compartment
No. Fused function A
201 Alarm siren 5
202 Stationary heater control unit 20
203 LED headlamp: Right front lamp unit 15
204 Electronic Stability Program control unit 25
205 Left fanfare horn
Right fanfare horn		 15
206 Valid for engine 651: CDI control unit
Valid for engine 607: Powertrain control unit		 5
207 Valid for diesel engine: Circuit relay87M 5
208 Valid for engine 133, 607: Circuit 87 relay 7.5
209 LED headlamp: Left front lamp unit 15
210 Heated windshield relay 5
211 Not used –
212 Valid for engine 133, 270: Connector sleeve, circuit 87M3
Valid for engine 651:
Vent line heater element
Coolant thermostat heating element
Exhaust gas recirculation cooler bypass switchover valve
Valid for engine 607 (Emissions standard EU5):
Oxygen sensor upstream of catalytic converter
Boost pressure positioner
Valid for engine 607 (Emissions standard EU6): Oxygen sensor upstream of catalytic converter
Valid for engine 607: CDI control unit		 15
213 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M2e
Valid for engine 607 (Emissions standard EU5):
Camshaft Hall sensor
CDI control unit
Quantity control valve
Valid for engine 607 (Emissions standard EU6):
Oxygen sensor downstream of catalytic converter
CDI control unit		 15
214 Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M4e 10
215 Valid for gasoline engine:
Cylinder 1 ignition coil
Cylinder 2 ignition coil
Cylinder 3 ignition coil
Cylinder 4 ignition coil
Valid for engine 651: Quantity control valve
Valid for engine 607:
CDI control unit
Boost pressure positioner
Quantity control valve		 20
216 Valid for gasoline engine: ME-SFI control unit
Valid for engine 607: Powertrain control unit		 5
217 Valid with transmission 724: Dual clutch transmission fully integrated transmission control unit 25
218 Electronic Stability Program control unit 5
219 Not used –
220 Transmission cooling coolant circulation pump 10
221 Not used –
222 Not used –
223 Not used –
224 DISTRONIC electric controller unit
COLLISION PREVENTION ASSIST controller unit		 7.5
225 Not used –
226 Not used –
227 Not used –
228 Not used –
229 Left front lamp unit 5
230 Electronic Stability Program control unit 5
231 Right front lamp unit 5
232 Headlamp control unit 15
233 Not used –
234 Valid for engine 607: Powertrain control unit 5
235 Valid for engine 607:
Fan motor
Radiator shutters actuator		 7.5
Valid for engine 133:
Charge air cooler circulation pump
Charge air cooler circulation pump		 7.5
236 SAM control unit 40
237 Electronic Stability Program control unit 40
238 Heated windshield 50
239 Wiper speed 1/2 relay 30
240A Starter circuit 50 relay 25
240B Circuit 15 relay (not latched) 25
241 Not used 7.5
Relay
J Fanfare horn relay
K Wiper speed 1/2 relay
L Windshield wiper ON/OFF relay
M Starter circuit 50 relay
N Circuit relay87M
O ECO start/stop: Transmission cooling coolant circulation pump relay
P Backup relay (F58kP)
Q Circuit 15 relay (not latched)
R Circuit 15 relay
S Circuit 87 relay
T Heated windshield relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Mercedes-Benz E-Class w210 (1995 – 2002) – fuse box diagram

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Mercedes-Benz E-Class w210 (1995 – 2002) – fuse box diagram

Year of production: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002

Fuses box in engine compartment

Mercedes-Benz E-Class w210 - fuse box diagram - engine compartment
Mercedes-Benz E-Class w210 – fuse box diagram – engine compartment
No. Fused function A
1 up to 31.5.99: Front cigar lighter 15
2 up to 28.2.97: Spare Garage door opener control unit (USA)
as of 1.3.97 up to 31.5.99: Operating/display unit with control unit (Japan)		 7,5
as of 1.6.99:Front cigar lighter 15
3 Combination switch:
Low beam switch
Washer switch with one-touch wiping
Wiper switch
Glove compartment lamp		 15
4 Instrument cluster
Automatic heater (HAU), up to 31.5.99:
HEAT pushbutton control unit
Duovalve
Coolant circulation pump 
Air conditioning or, for USA, Tempmatic:
Air conditioning pushbutton control unit
Coolant circulation pump
Duovalve
Automatic air conditioning: AAC control and operating module
as of 1.3.97 up to 31.5.99: Operating/display unit with control unit (Japan)
Engines 111, 112, 113 and Electronic-Stability-Program (ESP), as of 1.6.99 up to 31.5.00: Steering angle sensor		 10
5 up to 28.2.97: Hazard flasher switch
Left additional turn signal lamp
Rght additional turn signal lamp
as of 1.6.99: Front cigar lighter (when converting from circuit 15R to circuit 30 at customer’s request)		 15
6 up to 31.5.99: Front cigar lighter (when converting from circuit 15R to circuit 30 at customer’s request) 15
7 up to 28.2.97:
Instrument cluster
   Automatic heater (HAU):
HEAT pushbutton control unit
Ventilator blower
Fresh air/recirculated air flap switchover valve
   Engine 104, 111:
HFM-SFI control unit via the electronic accelerator (EFP) relay
Taxi version: Taximeter		 201)
Instrument cluster
Automatic heater (HAU), as of 1.3.97 up to 31.5.99:
HEAT pushbutton control unit
Ventilator blower
Fresh air/recirculated air flap switchover valve
Air conditioning, Tempmatic:
Ventilator blower
Air conditioning pushbutton control unit
Fresh air/recirculated air flap switchover valve
Automatic air conditioning:
AAC control and operating module
Emissions sensor
Engine 104, 111: HFM-SFI control unit via the electronic accelerator (EFP) relay
Taxi version: Taximeter
as of 1.3.97 up to 31.5.99: Operating/display unit with control unit (Japan)		 15
8 up to 28.2.97:
HEAT pushbutton control unit
Air conditioning pushbutton control unit
AAC [KLA] control and operating module		 7,5
9 as of 1.3.97: Electric steering lock control unit 15
10 up to 28.2.97:
Rear-end door wiper motor relay
Washer pump switchover relay
as of 1.3.97 up to 31.5.98: Airbag indicator and warning lamp		 7,5
as of 1.6.98:
Airbag indicator and warning lamp
Restraint systems control unit		 10
11 Cargo area connector box
Radio (as of 1.6.98)
Radio and navigation control panel (as of 1.6.98)
Navigation processor (as of 1.6.98)
CTEL transmitter/receiver (up to 31.5.99)
Driver seat adjustment relay (as of 1.6.99)
Front passenger seat adjustment relay (as of 1.6.99)		 15
12 Front heated seat (HS) control unit
Rear heated seat (HS) control unit
Left front seat belt comfort-fit solenoid
Right front seat belt comfort-fit solenoid
Switch for electric roller blind for rear window (center console)
Rear-end door wiper motor relay (as of 1.6.99)		 10
13 Airbag indicator and warning lamp (up to 28.2.97)
Driver-side side airbag sensor
Front passenger-side side airbag sensor
Radio (up to 28.2.97)
Radio and navigation control panel (up to 28.2.97)
Navigation processor (up to 28.2.97)
Restraint systems control unit (as of 1.6.98)
Seat belt emergency tensioning retractor control unit (GUS) with airbag (AB) (as of 1.3.97)
Passenger seat occupied and child seat recognition sensor (as of 1.3.97)		 10
14 up to 28.2.97:
Parktronic system control unit
Infrared remote control control unit (IFZ)		 7,5
Rear-end door wiper motor relay (as of 1.3.97 up to 31.5.99)
Outside mirror switch with mirror fold-in/fold-out facility
Infrared drive authorization system control unit
Ambulance separation point
Relay for feed-in circuit 15 (as of 1.6.99)
Tire pressure monitor control unit (as of 1.6.99)
Engines 611, 612, 613, as of 1.6.00: Heater booster relay
15 Transmission 722 (up to 28.2.97):
Kickdown shutoff relay (up to 31.5.96)
   Reversing lockout and park pawl blocking solenoid (as of 1.6.96)
Engine 104, 111 (up to 28.2.97):
Purge control valve
Camshaft timing solenoid
Engines 604, 605 up to 31.5.96, Engine 606:
Preglow time-limit relay (up to 28.2.97)
Data link connector, Pin 2 (up to 28.2.97)
Engine 602, 611: Heater booster switch (as of 1.3.97)
Xenon headlamp lamp: Headlamp range adjustment control unit
Parktronic system control unit (as of 1.3.97)		 15
16 up to 28.2.97:
Automatic dimming inside rearview mirror
Infrared remote control receiver for inside rearview mirror (up to 31.5.96)
Thermal switch for washer system heating
Outside mirror adjustment up/ down
Outside mirror adjustment to the left/ right
Left/right outside mirror switchover
Left electrically adjustable and heated outside mirror
Right electrically adjustable and heated outside mirror
Left mirror heater
Right mirror heater
Outside mirror switch with mirror fold-in/ fold-out facility		 15
as of 1.3.97 up to 31.5.99: Driver-side front door control uni 15
as of 1.6.99: Driver-side front door control unit 20
17 up to 28.2.97:
Steering angle sensor
Data link connector, Pin 3
Infrared remote control control unit (IFZ) (up to 31.5.96)
Infrared drive authorization system control unit (as of 1.6.96)
Engine 606, up to 31.5.96: Data link connector II, Pin 16		 10
as of 1.3.97:
STH or heater booster heater unit
Stationary heater timer
Infrared drive authorization system control unit
Engines 602, 611, 612, 613, up to 31.5.00: STH or heater booster heater unit		 20
18 as of 1.6.96: Closing feedback relay 15
as of 1.3.97: 
Rear driver’s side door control unit
Closing feedback relay (as of 1.6.99)		 20
19 Engine 111, as of 1.6.96: Ignition coils 10
Engine 104, as of 1.6.96: Engine 119: Ignition coils (up to 28.2.97)
as of 1.3.97 up to 31.5.99: 
Additional air unit relay
Transmission oil fan unit
Additional fan unit for coolant or transmission oil		 15
as of 1.6.99:
High-pressure and return pump
ASR/SPS (speed-sensitive power steering)
High-pressure and return pump
ESP, SPS and BAS control unit		 40
20 Engine and air conditioning electric suction fan control unit (up to 31.5.99)
with engine 111ME, 112: Engine and air conditioning electric suction fan control unit (as of 1.6.99)		 50
Addition fan control unit (as of 1.3.97)
with engine 113, 613: Engine and air conditioning electric suction fan control unit (as of 1.6.99)		 30
with engines 611, 612: Engine and air conditioning electric suction fan control unit (as of 1.6.99) 70
21 Spare —
22 up to 28.2.97: Combination control unit 30
23 Rain sensor (up to 28.2.97)
CTEL transmitter/receiver
TELE AID control unit (as of 1.3.97 up to 31.5.00)
Emergency call control unit (as of 1.3.97)
Frequency switchover control unit (as of 1.3.97)
CTEL interface (as of 1.3.97)
Portable CTEL D2B interface (as of 1.6.99)
D2B interface Dynamic destination guidance (as of 1.6.99)
Engine 111 with Tempomat and transmission 722, as of 1.6.00: Brake booster vacuum pump control unit		 7,5
24 Engine 111 with Tempomat, as of 1.6.00: ME-SFI [ME] control unit 7,5
25 up to 28.2.97:
STH or heater booster heater unit
Stationary heater timer		 20
Engine 111 with Tempomat and transmission 722, as of 1.6.00: Brake booster vacuum pump control unit 25
26 Spare —

Fuse box below rear seat bench

Mercedes-Benz E-Class w210 - fuse box diagram - rear seat below seat bench
Mercedes-Benz E-Class w210 – fuse box diagram – rear seat below seat bench
No. Fused function A
1 up to 28.2.97:
Multifunction control unit:
Left rear power window motor
Right rear power window motor		 30
as of 1.3.97: Passenger-side front door control unit
 20
2 up to 28.2.97:
Multifunction control unit:
Driver-side power window motor
Front passenger-side power window motor		 30
as of 1.3.97: Rear passenger’s side door control model
3 up to 28.2.97:
Taxi version:
    Left rear dome lamp
    Right rear dome lamp
     Rear interior lamp
Model 210.2:
   Left D-pillar interior lamp
     Right D-pillar interior lamp
    Trunk lid ambient lamp
Model 210.0/6:
   Trunk lid ambient lamp
   Combination control unit
Interior illumination:
    Front dome lamp (with shut-off delay and front reading lamp)
Rear interior lamp
Trunk lamp
Left front door entry/exit lamp
Right front door entry/exit lamp
Front deluxe seats, incl. seat heating and seat ventilation (as of 1.6.99):
Left front seat ventilation blower regulator
Right front seat ventilation blower regulator		 15
as of 1.3.97:
Lower control panel control unit
Rear interior lamp
   Models 210.0, 210.6:
Trunk lamp
   Model 210.2:
Left D-pillar interior lamp
Right D-pillar interior lamp
   Taxi version:
Left rear dome lamp
Right rear dome lamp
Rear interior lamp
Interior lights amplifier control unit (model 210.2 only)		 7,5
4 Glass version of electric sliding/tilting roof (up to 28.2.97):
Tilting/sliding roof
Sliding/tilting roof switch		 25
as of 1.3.97: Overhead control panel control uni 25
5 Pneumatic system equipment with combined functions
Anti-theft alarm system (ATA):
Alarm signal horn, via pneumatic control unit with combined functions
Radio (with additional internal 10A fuse – as of 1.6.99)
Auto pilot system (APS):
Radio and navigation control panel
Navigation processor
CD changer:
CD player with changer (in luggage compartment), via radio or radio and navigation control panel
Communication/navigation system (CNS) (as of 1.3.97):
Receiver and amplifier (in luggage compartment)
COMAND operating and display system (as of 1.6.99):
COMAND operating, display and control unit
Antenna booster Bottom left rear window		 25
6 up to 28.2.97:
Model 210.2: Tailgate closing assist		 20
as of 1.3.97:
   Engine 111, 112, 113: Fuel pump, via fuel pumps relay		 25
7 up to 28.2.97:
Left and right outside mirror with memory:
Combination control unit
Outside mirror adjustment up/ down
Outside mirror adjustment to the left/ right
Left/right outside mirror switchover
Memory package (driver seat, steering column, mirrors):
Steering column adjustment motor, via multifunction control unit		 30
as of 1.3.97:
Model 210.2: Rear-end door closing assist		 20
8 Memory package (driver seat, steering column, mirrors), left hand drive vehicle (LHD) only:
Left front seat adjustment control unit with memory
Vehicle with partially electric seat adjustment (as of 1.6.99):
Driver-side partially electric seat adjustment motor group		 25
9 Memory package (driver seat, steering column, mirrors), left hand drive vehicle (LHD) only:
Left front seat adjustment control unit with memory
Vehicle with partially electric seat adjustment (as of 1.6.99):
Front passenger partially electric seat adjustment motor group		 25
10 Refrigerator box (customer’s request)
Interior monitoring (with ATA only) (up to 28.2.97):
Left interior motion sensor transmitter and receiver unit, infrared (IR)
Right interior motion sensor transmitter and receiver unit, infrared (IR)
Anti-theft alarm system (ATA) (up to 28.2.97):
ATA inclination sensor
Information and communication system, with Japanese version (as of 1.3.97 up to 31.5.99):
CD player with changer (in trunk)
Antenna amplifier voltage supply
TV tuner
Navigation processor
Relief relay, circuit 15
COMAND operating and display system (as of 1.6.99): 
TV tuner		 10
11 as of 1.3.97 up to 31.5.99:
Anti-theft alarm system (ATA):
Alarm signal horn with additional battery
ATA inclination sensor (only USA)
   Level control at rear axle with ADS, or Electronic Stability Program (ESP), with engines 112, 113 and 606:
Steering angle sensor
   Interior monitoring (with ATA only):
ATA inclination sensor
Left interior motion sensor transmitter and receiver unit, infrared (IR)(210.2)
Right interior motion sensor transmitter and receiver unit, infrared (IR) (210.2)
Interior motion sensor transmitter and receiver unit (210.0, 210.6 only)
as of 1.6.99:
   USA version:
Trunk lid emergency release switch (models 210.0, 210.6 only, as of 1.6.00)
   Electronic Stability Program (ESP):
Steering angle sensor
   Interior monitoring (with ATA only):
Interior motion sensor transmitter and receiver
ATA inclination sensor		 7.5
12 13-pin trailer hitch socket, PIN 9 25
13 Electrically adjustable front passenger seat with memory, on left hand drive vehicle (LHD):
Right front seat adjustment control unit with memory
Left front seat adjustment control unit with memory		 25
14 Electrically adjustable front passenger seat with memory, on left hand drive vehicle (LHD):
Right front seat adjustment control unit with memory (N32/2)		 25
15 Taxi version (up to 28.2.97): 
Roof symbol light
Roof sign switch
Dynamic navigation system, (as of 1.3.97 up to 31.5.98):
Traffic data recorder
MB/D network portable CTEL (up to 31.5.98):
CTEL transmitter / receiver, also with AMPS network for USA
Telephone interface, with AEG portable CTEL
Information/communications system (ICS) (as of 1.3.97 up to 31.5.99):
Telephone connector, circuit 15C (only Japan)
Dynamic navigation system with MB/D network portable CTEL (D2B) (as of 1.3.97):
D2B interface Dynamic destination guidance
Dynamic navigation system with network portable CTEL (D2B) (as of 1.3.97):
Portable CTEL D2B interface
Telephone interface
MB cellular telephone standard (as of 1.6.00):
Cellular telephone transmitter and receiver unit, D2B
Telephone preinstallation D network portable CTEL (as of 1.3.97):
CTEL interface
MB portable CTEL, (as of 1.6.00):
CTEL interface
E-net compensator
D network portable CTEL (D2B) (as of 1.3.97 up to 31.5.00):
Portable CTEL D2B interface
TELE AID emergency call system (D2B) (as of 1.3.97):
TELE AID control unit
EMERGENCY CALL emergency call system with USA version or Japanese version (as of 1.3.97):
Emergency call control unit
Voice control system (VCS):
CTEL transmitter / receiver (up to 31.5.98)
Voice control system control unit (as of 1.6.98)
D2B-Portable CTEL interface (up to 31.5.00)
Tire pressure monitor (as of 1.3.97):
TPM [RDK] control unit		 7.5
16 Sound system:
Amplifier for sound system		 25
17 up to 28.2.97:
Electric heated seats for left and right rear seat: Rear heated seat (HS) control unit		 25
as of 1.3.97:
Electric heated seats for left and right rear seat: Rear heated seat (HS) control unit		 20
18 Left and right front heated seats: Front heated seat (HS) control unit 20
19 Pneumatic system equipment with combined functions
Rear window defroster
Functions of central locking
Functions of anti-theft alarm system
Functions of interior motion sensor and towing sensor		 40
20 as of 1.3.97:
Government vehicles, feed-in of fuses: 
Maxi Fuse box I, right rear wheelhouse, (police)
Feed-in relay, circuit 15
Fuse box II, right rear wheelhouse, (police)
Taxi version:
Taxi fuse box (voltage supply)		 40

Fuse box on light module (left-hand steering)

Mercedes-Benz E-Class w210 - fuse box diagram - on light module
Mercedes-Benz E-Class w210 – fuse box diagram – on light module (left-hand steering)
No. Fused function A
1 Not used –
2 Stop lamp switch
Cruise control		 15
3 Right high beam
High beam indicator lamp		 7.5
4 Reverse lamp
Turn signal lamp
Rear wiper control (model 210 T-model)
Rearview mirror dimming control
Parking aid control		 15
5 Left high beam 7.5
6 Right low beam 15
7 Front right parking light
Right taillamp		 7,5
8 Left low beam 15
9 Left fog lamp Right fog lamp 15
10 Front left parking light
Left taillamp		 7,5
11 License plate lamp
Instrument illumination
Symbol illumination
Automatic headlamp range control		 7.5
12 Rear fog lamp 7.5

Fuse box on light module (right-hand steering)

Mercedes-Benz E-Class w210 - fuse box diagram - on light module (right-hand steering)
Mercedes-Benz E-Class w210 – fuse box diagram – on light module (right-hand steering)
No. Fused function A
1 Left fog lamp Right fog lamp 15
2 Rear fog lamp 7.5
3 Right front parking lamp
Right taillamp		 7.5
4 Left front parking lamp
Left taillamp		 7.5
5 Left high beam 7.5
6 License plate lamp
Instrument illumination
Symbol illumination
Automatic headlamp range control		 7.5
7 Right high beam
High beam indicator lamp		 7.5
8 Left low beam 15
9 Stop lamp
Cruise control		 15
10 Right low beam 15
11 Not used –
12 Reverse lamp/turn signal lamp
Rear window wiper control (model 210 T-model)
Rearview mirror dimming control
Parking aid control		 15

 

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Smart Forfour (W454; 2004 – 2006) – fuse box diagram

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Smart Forfour (W454; 2004 – 2006) – fuse box diagram

Year of production: 2004, 2005, 2006

Fuse box

Smart Forfour - fuse box diagram
Smart Forfour – fuse box diagram
No. Fused function A
1 Interior illumination
Upper control panel control unit
Left SAM control unit
Rain sensor/light sensor
Instrument cluster
Combination switch
Central gateway control unit		 10
2 Left SAM control unit 10
3 Left standing lamp and taillamp 7,5
4 Right parking light and taillamp 7,5
5 Front wiper 20
6 Vacant —
7 Heated outside mirror 7,5
8 Right high beam 10
9 Left high beam 10
10 Horn 10
11 Fuel pump 15
12 ENGINE 122.9, 134.9, 135.9:
Motor electronics control unit
Motor relay
Throttle valve relay		 20
13 Trailer hitch socket (13-pin) circuit 30 15
14 Glass sliding roof 20
15 Rear window wiper motor 15
16 Cigarette lighter 15
17 Rear fog lamp 7,5
18 Outside mirror adjustment 7,5
19 ENGINE 639.9:
EDG control unit		 15
20 ENGINE 639.9:
EDG control unit
Fuel pump relay 2
Motor relay		 7,5
21 Right low beam 10
22 Left low beam, headlamp range adjustment 10
23 Front fog lamp (up to model year 04) 15
Front fog lamp (as of model year 05) 10
24 Diagnostic socket, central locking (up to model year 04) 15
25 Trailer hitch socket (13-pin) circuit 15 15
26 Turn signal lights 15
27 Radio 15
28 Anti-theft alarm system 10
29 Manual transmission 20
30 Diagnostic socket, central locking (as of model year 05) 15
31 Brake lights
Stop lamp switch (4-pin)		 15
32 AAC [KLA] control and operating unit 7,5
33 ESP control unit
Steering assist control unit
Restraint systems control unit		 7,5
34 ENGINE 122.9, 134.9, 135.9:
Ignition coils		 10
35 EDG control unit
Fuel pump relay 1		 7,5
36 Reversing lights 7,5
37 Rear window heater 30
38 Heated seats 30
39 ENGINE 639.9:
EDG control unit		 30
40 Heater blower 40
41 Ignition/starter switch 40
42 Power windows
Headlamp cleaning system pump		 40
43 Engine coolant fan motor 40
44 Electronic selector lever module control unit (with transmission 717.474, 717.475) 40
Relay
A Power window relay
B Horn relay
C Fuel pump 2 relay
D Rear fog lamps relay
E Starter relay
F Gasoline/diesel engine relay
G Preexcitation alternator
H Fan stage 1 relay
I Fog lamp relay
J Heater relay
K Fuel pump 1 relay
L Transmission relay
M Trailer hitch bridge
N Free (backup relay)
O Fan stage 2 relay
P Headlamp cleaning system relay
Q Rear window defroster relay
R Heated seats bridge
S Low beam relay
T High beam relay
U Throttle valve relay (only with engine 134.910, 135.930/950)

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.