Mercedes A-Class w169 (2004 – 2012) – fuse box diagram
Year of production: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Fuse box in the front-passenger footwell
The fuse box is located in the front-passenger footwell in front of the seat.
| No. |
Fused function |
A |
| 1 | Stop light switch | 10 |
| Valid for code (U62) Light and vision package: Stop light switch |
5 | |
| 2 | Heated rear window | 25 |
| 3 | Instrument cluster EIS [EZS] control unit |
7.5 |
| 4 | EIS [EZS] control unit Electric steering lock control unit |
15 |
| 5 | Valid without code (580) Automatic air conditioning and without code (581) Comfort automatic air conditioning: HEAT control and operating unit Valid for code (580) Automatic air conditioning: AAC [KLA] control and operating unit Valid for code (581) comfort automatic air conditioning: Comfort AAC [KLA] control and operating unit |
7.5 |
| 6 | Left fanfare horn Right fanfare horn |
15 |
| 7 | Fuel pump relay | 25 |
| Valid for model 169.090: DC/DC converter control unit |
5 | |
| 8 | Overhead control panel control unit | 25 |
| 9 | ESP and BAS control unit | 40 |
| 10 | Blower regulator/interior wiring harness connector | 40 |
| 11 | Valid for engine 266: Circuit 87 relay, engine |
30 |
| Valid for engine 640: Circuit 87 relay, engine |
40 | |
| 12 | Steering column module Multifunction steering wheel |
5 |
| 13 | Left front door control unit | 25 |
| 14 | Right front door control unit | 25 |
| 15 | ESP and BAS control unit | 25 |
| 16 | Data link connector PTS control unit |
10 |
| 17 | Rotary light switch | 5 |
| 18 | Valid for transmission 711, 716: Backup lamp switch Valid for model 169.090: A/C compressor control unit BKGN Energy monitoring control unit Vacuum pump 1 control unit Vacuum pump 2 control unit |
7.5 |
| 19 | Micromechanical turn rate sensor AY pickup | 5 |
| 20 | Restraint systems control unit | 7.5 |
| 21 | Starter relay | 30 |
| 22 | Instrument cluster | 7.5 |
| 23 | Washer nozzle heating | 7.5 |
| Valid for engine 640 as of 1.9.08: Fuel filter condensation sensor with heating element |
20 | |
| 24 | Electric power steering (ES) control unit | 7.5 |
| 25 | Stop light switch ESp and BAS control unit |
7.5 |
| 26 | Valid for transmission 722: Electronic selector lever module control unit |
7.5 |
| 27 | Valid for transmission 722: CVT (continuously variable automatic transmission) control unit |
10 |
| 28 | Rotary light switch | 5 |
| 29 | SAM control unit | 30 |
| 30 | Circuit 87F relay | 25 |
| 31 | Central gateway control unit (vehicles up to 30.11.05) Rotary light switch Automatic light switch daylight sensor Rain/light sensor |
5 |
| 32 | Valid for engine 266: ME-SFI [ME] control unit Valid for model 169.090: Energy monitoring control unit |
7.5 |
| 33 | Radio Radio and navigation unit COMAND operating, display and control unit (Japan) |
15 |
| 34 | Left rear door control unit | 25 |
| 35 | Right rear door control unit | 25 |
| 36 | Cell phone separation point Trailer control unit |
7.5 |
| Trailer control unit PTS control unit |
10 | |
| 37 | Restraint systems control unit Front passenger seat occupied recognition sensor Front passenger seat occupied and child seat recognition sensor |
7.5 |
| 38 | Front cigar lighter with ashtray illumination | 25 |
| 39 | Wiper motor | 25 |
| 40 | Overhead control panel control unit | 7.5 |
| Roof motor | 25 | |
| 41 | Liftgate wiper motor | 15 |
| 42 | Glove compartment illumination with switch Left and right vanity mirrors illumination Footwell illumination switch (driving school package) Pedal operation monitor switch (driving school package) VICS+ETC voltage supply separation point (Japan) |
7.5 |
| 43 | Valid for engine 266: Terminal 87M1 e connector sleeve |
15 |
| Valid for engine 640: Terminal 87M1e connector sleeve |
7.5 | |
| Valid for model 169.090: Vacuum pump 1 control unit |
20 | |
| 44 | Valid for engine 266: Terminal 87M2e connector sleeve |
15 |
| Valid for engine 640: Terminal 87M2e connector sleeve |
20 | |
| 45 | Valid for engine 640: CDI control unit Valid for model 169.090: Vacuum pump 2 control unit |
25 |
| 46 | Telephone control unit, (Japan) E-net compensator Universal Portable CTeL Interface (UPCI [UHI]) control unit |
7.5 |
| Bass module speaker (Japan) | 25 | |
| Amplifier for sound system | 40 | |
| Valid for model 169.090: Charging control unit |
5 | |
| 47 | Telephone control unit, (Japan) Universal Portable CTEL Interface (UPCI [UHI]) control unit Cell phone separation point Voice control system (VCS [SBS]) control unit Valid for model 169.090: Charger 1 |
7.5 |
| 48 | ATA [EDW]/tow-away protection/interior protection control unit Alarm signal horn with additional battery Valid for model 169.090: Charger 2 |
7.5 |
| 49 | Upper control panel control unit Left front seat heated cushion Left front backrest heated cushion Right front seat cushion heater element Right front backrest seat cushion heater element |
25 |
| 50 | CD changer Media interface control unit Digital TV tuner Digital Audio Broadcasting control unit VICS+ETC voltage supply separation point (Japan) |
7.5 |
| Valid for government vehicles: Roof light bar Circuit 30 connector sleeve |
30 | |
| 51 | Valid for model 169.090: Cooling fan Low temperature coolant pump |
10 |
| 52 | VICS+ETC voltage supply separation point (Japan) (vehicles up to 31.5.06) Valid for model 169.090: Electric drive control unit |
5 |
| Spare (vehicles as of 1.6.06) | 7.5 | |
| Emergency call system control unit (USA) (vehicles up to 31.5.06) | 7.5 | |
| 53 | Rear cigar lighter with ashtray illumination Interior socket |
30 |
| 54 | Amplifier for sound system Bass module speaker |
25 |
| Valid for model 169.090: Electric drive control unit |
5 | |
| 55 | Left front lamp unit (Bi-xenon) Right front lamp unit (Bi-xenon) |
7.5 |
| Left front lamp unit (Hi-xenon) | 10 | |
| 56 | Spare | 10 |
| Right front lamp unit (Hi-xenon) | 10 | |
| 57 | Trailer hitch socket (13-pin) (vehicles as of 1.6.05) | 15 |
| Audio gateway control unit (Japan) (vehicles up to 31.5.05) | 25 | |
| SDAR control unit Emergency call system control unit (USA) |
7.5 | |
| 58 | Trailer control unit Valid for model 169.090: Vehicle gateway control unit |
25 |
| 59 | Trailer control unit (vehicles up to 31.5.05) Trailer hitch socket (13-pin) (vehicles as of 1.6.05) |
20 |
| Valid for model 169.090: Battery management system control unit 1 |
5 | |
| 60 | Driver seat connector block | 20 |
| 61 | Front passenger seat connector block | 20 |
| 62 | Circuit 15 relay (2) (SA: xenon, cell phone) | 25 |
| 63 | Spare (vehicles up to 31.5.05) | – |
| Audio gateway control unit (Japan) (vehicles as of 1.6.05) Valid for government vehicles: Roof light bar |
25 | |
| Emergency call system control unit (USA) (vehicles as of 1.6.05) SDAR control unit |
7.5 | |
| Valid for model 169.090: Battery management system control unit 2 |
5 | |
| 64 | Valid for engine 266: Air pump relay |
40 |
| Valid for engine 640: Engine wiring harness/engine compartment connector Glow time output stage |
80 | |
| 65 | Electric power steering (ES) control unit | 80 |
| 66 | SAM control unit | 60 |
| 67 | Circuit 15R relay (2) (SE) | 50 |
| 68 | Valid for engine 266.920 and engine 266.940 with transmission 722: AAC with integrated control additional fan motor |
50 |
| Valid for engine 640.940, 640.941, 266.960, 266.980 and for engine 266.920, 266.940 with (Trailer hitch): AAC with integrated control additional fan motor |
60 | |
| 69 | Circuit 15R relay (1) | 50 |
| 70 | Circuit 15 relay (1) | 60 |
| 71 | Valid for engine 640: PTC heater booster |
150 |
| 72 | Circuit 30 connector sleeve Special vehicle multifunction control unit (SVMCU [MSS]) (Taxi) |
60 |
| No. |
Fused function |
A |
| 80 | Reserved for special-purpose vehicles | 30 |
| 81 | Reserved for special-purpose vehicles | 30 |
| 82 | Reserved for special-purpose vehicles | 30 |
| 83 | Reserved for special-purpose vehicles | 30 |
| Relay | ||
| A | Circuit 15R relay (2) (SA) | |
| B | Circuit 15R relay (1) | |
| C | Fanfare horn relay | |
| D | Heated rear window relay | |
| E | Wiper stage 1/2 relay | |
| F | Wiper ON/OFF relay | |
| G | Circuit 15 relay (1) | |
| H | Backup relay | |
| I | Air pump relay | |
| K | Fuel pump relay | |
| L | Engine circuit 87 relay | |
| M | Starter relay | |
| N | Circuit 87F relay | |
| O | Circuit 15 relay (2) (SA: xenon, cell phone) | |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.