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Fuse box diagram (fuse layout), location, and assignment of fuses Mercedes-Benz A-Class A140, A160, A170, A190, A210 (W168) (1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004).
Checking and Replacing Fuses
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. If a fuse has blown, the inside element will be melted. Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse ratings are listed in the fuse allocation chart.
If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
Notice
- Before changing a fuse, secure the vehicle against rolling away and switch off all electrical consumers.
- Always disconnect the battery before servicing high current fuses.
- Always replace faulty fuses with the specified new fuses having the correct amperage. If you manipulate or bridge a faulty fuse or if you replace it with a fuse with a higher amperage, the electric cables could be overloaded. This could result in a fire. There is a risk of an accident and injury.
- Only use fuses that have been approved for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Only use fuses marked with an “S”. Otherwise, components or systems could be damaged.
Passenger Compartment Fuse Box Diagram
The main fuse block is located behind the floor panel on the right-hand side of the car.
| № | 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 | 30 7.5 30 |
| Front right power window | ||
| 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
It is on the left side of the dash panel.
| № | Fused function | A |
|---|---|---|
| 1 | Left low beam | 7.5 |
| 2 | Right low beam | 7.5 |
| 3 | Left main beam | 15 |
| Right main beam | ||
| Main beam indicator lamp (instrument cluster) | ||
| 4 | Left side lamp | 7.5 |
| Left tail lamp | ||
| 5 | Right side lamp | 15 |
| Right tail lamp | ||
| 58K instrument cluster | ||
| License plate lamps | ||
| 6 | Left/right fog lamp | 15 |
| Left rear fog lamp |
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