Table of Contents
The world premiere of the third generation Mercedes-Benz C-Class took place in Stuttgart in January 2007. The new sedan W204 looks aesthetically more perfect, has improved aerodynamics. A large grille, completely changed optics and a front bumper with a large air intake added a touch of aggressiveness. In this material, we will analyze in detail the fuse circuits for the Mercedes W204 body of the 3rd generation C-class (C180, C230, C280, C350, C63 AMG) 2007, 2008, 2009, 2010, 2011, 2012, 2103, 2014 release.
Here you will find the locations and photos of the fuse blocks. Separately, we note the elements responsible for the cigarette lighter and fuel pump.
In the trunk
Block location (sedan body).
Fuse box location (station wagon body).
Access example.
General form.
| Luggage block diagram | ||
|---|---|---|
| Models up to June 2009 | ||
|
||
| No. | Description | A |
| F37 | SRS system | 7.5 |
| F38 | 15 | |
| F39 | Rear left door electrical control unit | 30 |
| F41 | Rear right door electronics control unit | 30 |
| F42 | 20 | |
| F44 | Seat multifunction switch (front right) | 30 |
| F45 | Seat multifunction switch (front left) | 30 |
| F46 | 7.5 | |
| F49 | Heated rear window | 40 |
| F50 | 50 | |
| F51 | 50 | |
| F53 | Trailer control unit | 30 |
| F54 | Trailer control unit | |
| F56 | Trailer control unit | 15 |
| F57 | 20 | |
| F58 | 30 | |
| F59 | Parking system control unit | 7.5 |
| F61 | Rear door open / close drive control unit | 40 |
| F67 | Audio amplifier | 40 |
| F70 | Tire pressure monitor control unit | 5 |
| F71 | Cigarette lighter fuse w204 - C180, C230, C280, C350, C63 AMG. | 15 |
| F72 | 15 | |
| F74 | Remote control unit for central locking and engine start | 15 |
| F76 | Accessory power connector | 15 |
| F79 | Parking system control unit | 7.5 |
| F81 | Audio interface control unit | 7.5 |
| F83 | Emergency call system | 7.5 |
| F84 | Audio system | |
| F87 | Emergency call system | 7.5 |
| 3 | Heated rear window relay | |
| 6 | Power seat relay | |
| Models after June 2009 | ||
|
||
| No. | Appointment | A |
| F37 | SRS system | 5 |
| F38 | 15 | |
| F39 | Rear left door electrical control unit | 30 |
| F41 | Rear right door electronics control unit | 30 |
| F42 | Fuel module (fuel pump) | 20 |
| F43 | 7.5 | |
| F44 | Seat multifunction switch (front right) | 30 |
| F45 | Seat multifunction switch (front left) | 30 |
| F46 | 7.5 | |
| F49 | Heated rear window | 40 |
| F50 | SRS system | 50 |
| F51 | 50 | |
| F53 | Trailer control unit | 30 |
| F54 | Trailer control unit | |
| F56 | Trailer control unit | 15 |
| F57 | 20 | |
| F58 | 20 | |
| F59 | Parktrotnik | 5 |
| F60 | Seat adjustment pump | 7.5 |
| F61 | Rear door open / close drive control unit | 40 |
| F62 | 30 | |
| F63 | 30 | |
| F65 | Suspension control unit | 15 |
| F67 | Audio amplifier | 30 |
| F70 | Tire pressure monitor control unit | 5 |
| F71 | Cigarette lighter fuse w204 - C180, C230, C280, C350, C63 AMG. | 15 |
| F72 | 15 | |
| F73 | 7.5 | |
| F74 | Remote control unit for central locking and engine start | 15 |
| F75 | Additional heater control unit | 20 |
| F76 | Accessory power connector | 15 |
| F81 | Audio interface control unit | 7.5 |
| F82 | Telephone | 5 |
| F83 | Emergency call system | 7.5 |
| F84 | 7.5 | |
| F87 | Emergency call system | 7.5 |
| F89 | 20 | |
| F91 | ^ 06/10: Not used | |
| 3 | Heated rear window relay | |
| 6 | Power seat relay | |
In the passenger compartment
The fuse box is located on the driver's side at the end of the dashboard behind the protective cover.
Access example.
| Mercedes 204 Interior fuse box diagram | ||
|---|---|---|
|
||
| No. | A | Decryption |
| 116 | 30 | Driver's seat control unit (up to 31.05.09) |
| 117 | 15 | Adaptive damping system control unit (up to 31.05.09) |
| 118 | - | Reserve |
| 119 | 7.5 | Rear passenger compartment fan motor (up to 31.05.09) |
| AMG Performance Media control unit (up to 1.6.12) | ||
| 120 | - | Reserve |
| 121 | - | |
| 122 | - | |
| 123 | 10 | Steering column electronics control unit |
| 124 | - | Reserve |
| 125 | - | |
| 126 | 30 | Front passenger seat control unit (up to 31.05.09) |
| 127 | - | Reserve |
| 128 | - | |
| 129 | 20 | Oil cooler fan motor relay (engine 156; up to 05/31/09) |
| 130 | - | Reserve |
| 131 | - | |
| 132 | - | |
| 133 | - | |
| 134 | - | |
| 135 | - | |
In the engine compartment
The fuse mounting block is located on the right side of the engine compartment. Up.
General form.
| Diagram | ||
|---|---|---|
|
||
| No. | Relay assignment | |
| J | Terminal 15 | |
| K | Terminal 15R | |
| L | Spare | |
| M | Terminal 50, starter | |
| N | Terminal 87 motor | |
| O | Horn | |
| P | Catalyst purge | |
| Q | oil cooler fan | |
| R | Terminal 87 running gear | |
| No. | A | Purpose of fuses |
| 1 | 25 | electronic stability control system ESP |
| 2 | 30 | front left door |
| 3 | 30 | Front door module on the right (up to 31.3.10) |
| 4 | 7.5 | Fuel pump fuse (gasoline engines) |
| Left fuel pump module (motor 156) | ||
| Right fuel pump module (motor 156) | ||
| Condensation sensor in the fuel filter with a heating element (engines 642, 651) | ||
| The control unit for the condensate sensor in the fuel filter with a heating element (motors 651 (up to 31.5.10), 646) | ||
| 20 | Headlight module (since 1.3.11) | |
| 5 | 7.5 | Rear SAM unit with fuse and relay module |
| Relay for the coolant circulation circuit of the rear axle gearbox (engine 156 with 1.7.11) | ||
| Outdoor lighting switch (from 1.12.09) | ||
| 6 | 10 | CDI Block (Diesel Engines) |
| ME block (petrol engines) | ||
| 7 | 20 | Starter |
| 8 | 7.5 | Passenger restraint system module |
| 9 | 15 | Socket in the glove compartment |
| 10 | 30 | Wiper motor |
| 11 | 7.5 | Audio display / COMAND |
| Audio control panel / COMAND | ||
| Holder for navigation module | ||
| 12 | 7.5 | Climate control system control unit |
| Upper control panel | ||
| 13 | 7.5 | Steering column electronics control unit |
| Multifunctional camera (since 1.3.11) | ||
| 14 | 7.5 | Control unit for electronic stability control ESP |
| 15 | 7.5 | restraint system |
| passive safety systems | ||
| 16 | 5 | Diagnostic connector (up to 31.5.09) |
| Electr. mobile phone plug connection (up to 2008) | ||
| electronic module of the selector lever (KP 722) | ||
| 17 | 30 | Panoramic sliding sunroof control module |
| overhead control panel | ||
| 18 | 7.5 | Outdoor lighting parting switch (up to 2008) |
| upper control panel (from 1.3.11) | ||
| Termination of the positive cable of the LIN data bus of the air conditioning system of the instrument panel (up to 28.2. | ||
| Electrical connector for passenger compartment and wiring harness for tail lamp | ||
| 19 | 20 | Electric steering lock unit |
| Electronic ignition lock unit | ||
| 20 | 40 | ESP motion stabilization system |
| 21 | 7.5 | Brake signal sensor |
| Glove compartment light switch | ||
| Seat occupied recognition, front passenger seat occupied AKSE | ||
| Electric fuse for preparation for installation of the Electronic Toll Collection system (Japan) | ||
| 22 | 15 | Internal combustion engine blower motor and air conditioner with integrated regulation |
| Electrical connector for interior wiring harness and engine wiring | ||
| Cable lug electr. terminal 87 circuit M2e (engine 271; South Korea), (engine 272; USA) | ||
| ME control unit (engine 271; South Korea) | ||
| Regeneration changeover valve (engine 271; South Korea), (engine 272; USA) | ||
| CDI system control unit (engines 642, 646) | ||
| Heating element in the ventilation duct of the engine crankcase (engine 642) | ||
| Cable lug electr. terminal 87 circuits (engine 646) | ||
| 23 | 20 | Electrical connector for interior wiring harness and engine wiring |
| Rear SAM control unit with fuse and relay module (diesel engines) | ||
| CDI control unit (diesel engines up to 2008) | ||
| Cable lug electr. terminal 87 circuits (diesel engines up to 2008) | ||
| Cable lug electr. circuit terminal 87 M1e (motor 271 up to 2008) | ||
| Cable lug electr. circuit terminal 87 M1i (motor 272 up to 2008) | ||
| 24 | 15 | Electrical connector for interior wiring harness and engine wiring |
| Radiator shutter actuator (motor 642) | ||
| CDI control unit (motor 646) | ||
| Cable lug electr. circuit terminal 87 M1i (motor 272 up to 2008) | ||
| Cable lug electr. terminal 87 circuits (diesel engines up to 2008) | ||
| 25 | 15 | ME control unit (engines 156, 271, 272, 274, 276) |
| Lambda probe in front of the catalytic converter (engine 651) | ||
| Exhaust gas generator control unit (engine 651) | ||
| 26 | 20 | Audio module |
| Audio module with Auto-Pilot system | ||
| COMAND module | ||
| 27 | 7.5 | Electronic ignition lock unit |
| electric steering lock (up to 2008) | ||
| BCDI (diesel engines) | ||
| ME (gasoline engines) | ||
| 28 | 7.5 | Instrument cluster |
| 29 | 10 | Front right headlamp |
| 30 | 10 | Front left headlamp |
| Electrical connector for wiring harness, passenger compartment and engine (engine 642) | ||
| 31A | 15 | Left horn |
| Right horn | ||
| 31B | 15 | Left horn |
| Right horn | ||
| 32 | 40 | Electric air pump (engines 156, 271, 272) |
| 33 | 10 | Electronic control unit for automatic transmission control (KP 722.6) |
| Fully integrated automatic gearbox control unit (KP 722.9) | ||
| 34 | 7.5 | Fuel pump control unit (motors 274, 276), (motors 271, 272, 651 from 1.6.09), (motor 642 from 01.12.09) |
| 35 | 5 | ESP motion stabilization system (since 2009) |
| 36 | 7.5 | DISTRONIC electrical module |
| Electro-hydraulic power steering (since 2009) | ||
Splendid diagram, saved an awful lot of time digging out wiring circuit data. Thanks for posting this vital must have info.