Mercedes-Benz A-Class (w168; 1997 – 2004) – fuse box diagram
Year of production: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Fuse box
| 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. |
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Light module 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.