Mercedes-Benz C-Class w204 (2007-2014) – Fuse box diagram
Year of manufacture: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014.
Model: C180, C200, C250, C280, C300, C350, C63, AMG
Fuses Mercedes-Benz C-class cigarette lighter fuses (power outlets) is fuse #9 (glovebox power socket) in the engine compartment fuse box and fuses #71 (front cigarette lighter, front interior power socket), #72 (cargo compartment junction box, 115 V power socket), #76 (interior power socket) in the luggage compartment fuse box.
Engine compartment fuse box
| No. | Description | Amps [A] |
| 1 | Electronic Stability Program Control Unit | 25 |
| 2 | Front left door control unit | 30 |
| 3 | Valid until 31.3.10:
Controller right front door Valid from 1.4.10 with model 204.0 / 2/9: Controller Right rear door |
30 |
| 4 | until 31.08.08:
Fuel pump regulator; Valid for 156 engines until 31.08.08: Fuel pump regulator – right and left; Valid for 642 engine, 651 engine: Condensation sensor heating element fuel filter; Valid for engine 651 until 31.5.10, engine 646: Fuel filter condensation sensor controller with heating element. |
7,5 |
| Valid for diesel engine from 1.9.08:
Fuel filter condensation sensor with heating element; Valid for engine 276 (USA, South Korea): Activated carbon container shut-off valve; Valid for 204.0 / 2/3 of 1.3.11, 204.9 of 1.6.12: Headlight control unit. |
20 | |
| 5 | Rear SAM control unit with fuse and relay module;
Effective 1.6.10: Outdoor light switch; Valid for 156 series black engine from 1.7.11 onwards: Rear axle differential cooling circuit relay. |
7,5 |
| 6 | Applies to the diesel engine:
ME-SFI control unit [ME]; Applies to gasoline engine: CDI control unit. |
10 |
| 7 | Starter | 20 |
| 8 | Additional control unit for the restraint system | 7,5 |
| 9 | Power socket in the glove box | 15 |
| 10 | Wiper Motor | 30 |
| 11 | Audio Screen / COMM;
Audio / COMMAND control panel; Support for navigation module. |
7,5 |
| 12 | Automatic control unit and air conditioning control;
Upper control panel. |
7,5 |
| 13 | Steering column module control unit;
Multifunction camera. |
7,5 |
| 14 | Electronic Stability Program Control Unit | 7,5 |
| Headlight control unit | 20 | |
| 15 | Additional control unit for the restraint system | 7,5 |
| 16 | Diagnostic connector (until 31.5.09);
Electrical connector for cell phones; Applies to the 722 gearbox: Electronic control unit for the shift lever module. |
5 |
| ECO start/stop function:
Electric transmission oil pump |
20 | |
| 17 | Control module with sliding panoramic roof;
Control unit with control panel. |
30 |
| 18 | Valid until 30.11.09:
Outdoor light switch; Valid for model 204.0 / 2 as of 1.3.11, model 204.3: Upper control panel control unit; Valid for model 204.0 / 2 to 28.2.11, model 204.9: Air conditioning in the instrument panel; LIN positive cable connector sleeve; Vehicle interior and wiring harness for the rear light electrical connector. |
7,5 |
| 19 | Electric control of the steering lock;
Electronic ignition interlock control unit. |
20 |
| 20 | Electronic Stability Program Control Unit | 40 |
| 21 | Stop light switch;
Glove box light switch; Front passenger seat occupancy recognition and ACSR electric fuse for pre-installation of electronic toll collection (Japan). |
7,5 |
| 22 | Internal combustion engine fan motor and air conditioner with integrated control;
Electrical connector of the internal harness and engine wiring harness. |
15 |
| 23 | Electrical connector for internal wiring harness and motor wiring harness;
Applies to diesel engine: Rear SAM control unit with fuse and relay module; CDI control unit; Terminal 87 connector sleeve; Applies to motor 271: Clamp 87 M1and connecting bushing; Applies to motor 272: 87 M1i circuit connection bushing. |
20 |
| 24 | Electrical connector for inside wiring harness and wiring harness motor connections Inner electrical connector and wiring harness motor connector;Important for the 642 engine:Cooling tabs;Valid for engine 272: Clamp 87 M1E Connecting sleeve; Important for the diesel engine: Tightening sleeve 87 connector; Valid for motor 646: CDI control unit. |
15 |
| 25 | Valid for engine 156, 271, 272, 274, 276:
ME-SFI control unit [ME]; Valid for diesel engine: Oxygen sensor before catalytic converter; Valid as of 1.6.10 for model 204.3 with engine 651 sport version: Control unit for the sound generator of the exhaust system. |
15 |
| 26 | Radio;
Radio with autopilot system; COMAND control unit. |
20 |
| 27 | Electric steering lock control unit;
Electronic ignition interlock control unit; Applies to diesel engine: CDI control unit; Applies to gasoline engine: ME-SFI control unit [ME]. |
7,5 |
| 28 | Instrument cluster | 7,5 |
| 29 | Right Front Light Assembly | 10 |
| 30 | Left front light assembly;
Valid for 642 engine: Electrical connector for internal wiring harness and engine wiring harness. |
10 |
| 31A | Left horn;
Right horn. |
15 |
| 31B | Left horn;
Right horn. |
15 |
| 32 | Applies to 156, 271, 272, 276 motors:
Electric air pump |
40 |
| Valid for the 156 engine:
Oil cooling fan motor |
20 | |
| 33 | Valid for 722.6 gearbox:
Electronic control unit Transmission; Valid for 722.9 gearbox: W Fully integrated gearbox control unit. |
10 |
| 34 | Valid for 271, 272 engines from 1.9.08 onwards:
Controller fuel pumps; Valid for 156 engines as of 1.9.08: Left fuel pump control unit; Right fuel pump controller. |
7,5 |
| 35 | Effective 1.3.11:
Electronic control unit for the stability program. |
5 |
| 36 | Effective 1.3.11:
DISTRONIC electrical controller; Valid for model 204.902 / 982/984: Electro-hydraulic power steering. |
7,5 |
| Relay | ||
| J | Relay Circuit 15 | |
| K. | Terminal 15R Relay | |
| L | Reservation courier | |
| M | Circuit 50 start relay | |
| O | Motor Circuit 87 Relay | |
| O | Fanfare horn relay relays | |
| P. | Valid for 156, 272, 276 motors:
Secondary air injection relay |
|
| Q | Reservation courier | |
| R | 87 relay chassis circuit | |
Starter Fuse Box
until 31.05.2009
from 1.06.2009
| No. | Description | Amps [A] |
| 37 | from 2008 onwards:
NECK-PRO electro-magnetic headrest driver’s seat; NECK-PRO front passenger seat headrest solenoid. |
5 |
| until 2008
NECK-PRO headrest driver’s seat solenoid; NECK-PRO front passenger seat solenoid valve for headrest. |
7,5 | |
| 38 | Rear door wiper motor | 15 |
| 39 | Valid for 204.0 / 2/9 except for vehicles for the UK until 31.5.09:
Controller lew rear doors |
30 |
| 40 | Reservation | – |
| 41 | Valid for 204.0 / 2/9 until 31.3.10:
Controller Right rear door; Effective 1.4.10 Controller right front door, |
30 |
| 42 | Valid for gasoline engine or engine 642 from 1.12.09 or engine 651 from 1.6.09:
Fuel pump control unit |
25 |
| Valid for engine 646 or engine 642 until 30.11.09 or engine 651 until 31.5.09:
Fuel pump; Valid for gasoline engine (up to 2009): Fuel pump control unit. |
20 | |
| 43 | Valid from 1.6.09 with automatic air conditioning:
Rear fan motor |
5 |
| 44 | Switch group, right front seat adjustment;
Switch group, front passenger seat adjustment. |
30 |
| 45 | Front left seat adjustment switch group;
Left front driver’s seat adjustment switch group. |
30 |
| 46 | Rear Window Antenna Amplifier FM Antenna;
Alarm siren; Control unit for internal protection and trailer protection; Rear window antenna amplifier 1; TV antenna amplifier 1 and DAB band III; TV antenna amplifier 2 and DAB band III; KEYLESS-GO. |
7,5 |
| 47 | Reservation | – |
| 48 | Reservation | – |
| 49 | Rear window heating | 40 |
| 50 | Emergency voltage reversible right front retractor | 50 |
| 51 | Front left reversible emergency voltage retractor (A76) | 50 |
| 52 | Reservation | – |
| 53 | from 2008 onwards:
Trailer recognition control unit |
15 |
| until 2008
Trailer recognition control unit |
30 | |
| 54 | until 31.5.09:
Trailer recognition control unit; Valid for model 204.075/077/275/277: Switch group for driver’s seat lumbar support and side support; Passenger seat lumbar support and side support adjustment switch group; AMG front passenger seat valve block; AMG valve block driver’s seat. |
7,5 |
| as of 1.6.09:
Trailer recognition control unit |
15 | |
| 55 | Effective 1.6.09:
AdBlue. |
5 |
| 56 | Trailer recognition control unit;
Trailer socket. |
15 |
| Valid for models 204.077 / 277/377 until 31.5.09:
Switch group for driver’s seat lumbar support and side support; Front passenger seat lumbar support and side support adjustment switch group; AMG passenger seat valve block; AMG driver’s seat valve block. |
5 | |
| 57 | Trailer recognition control unit | 20 |
| 58 | from 2008 onwards:
Trailer recognition control unit |
20 |
| until 2008
Trailer recognition control unit |
30 | |
| 59 | from 2008 onwards:
Parking system control unit; Front left (DTR) DISTRONIC sensor; Right front bumper DISTRONIC (DTR) sensor; Smart radar sensor for left rear bumper; Smart radar sensor on the right rear bumper. |
5 |
| until 2008 ..:
T PARKTRONIC control unit; Radar sensor control unit. |
7,5 | |
| 60 | Pneumatic multicontour pump with seat | 7,5 |
| 61 | Lift gate controller | 40 |
| 62 | Driver’s seat control unit | 30 |
| 63 | Front passenger seat control unit | 30 |
| 64 | DC / AC converter control unit | 25 |
| 65 | Adaptive damping system control unit;
Control unit for the steering column shunting module. |
15 |
| 66 | Reservation | – |
| 67 | from 2008 onwards:
Sound system amplifier control unit |
30 |
| until 2008
Sound system amplifier control unit |
40 | |
| 68 | Reservation | 20 |
| 69 | Rear bass speaker amplifier | 20 |
| 70 | Control unit of the tire pressure monitor | 5 |
| 71 | Front cigarette lighter with ashtray;
Power socket inside the vehicle. |
15 |
| 72 | Cargo compartment junction box;
115 V electrical socket. |
15 |
| 73 | Diagnostic connector (from 1.6.09);
Stationary radio receiver for remote control of the heater; Valid for 156 engine from 1.7.11 onwards: Transmission mode control unit. |
7,5 |
| 74 | KEYLESS-GO Control Unit | 15 |
| 75 | Stationary heater | 20 |
| 76 | Internal vehicle power socket | 15 |
| 77 | Control unit of the mass detection system (WSS) | 7,5 |
| 78 | Left front seat ventilation fan regulator;
Right front seat ventilation fan regulator. |
7,5 |
| 79 | Parking system control unit | 5 |
| 80 | Control unit for video system and radar sensor;
Control unit for parking system. |
7,5 |
| 81 | Multimedia Interface Control Unit | 5 |
| 82 | Cell phone system compensator;
UMTS TV tuner control unit (until 31.5.09; Japan); Digital TV tuner (until 31.5.09; Japan). |
5 |
| 83 | Electronic toll control unit (Japan);
Control unit for emergency call system; Reversing camera; Left rear display; Right rear display. |
7,5 |
| 84 | Digital satellite audio radio (SDAR) control unit;
SDAR / high definition tuner control unit; Digital audio broadcast control unit; Camera power reversal module; Reversing chamber control unit; 360° camera control unit. |
7,5 |
| 85 | TV tuner control unit (until 31.5.09; Japan);
Digital TV tuner (from 1.6.09; Japan). |
7,5 |
| 86 | DVD drive | 7,5 |
| 87 | Control unit for the emergency call system | 7,5 |
| 88 | Effective 1.6.09
Reservation |
– |
| 89 | Effective 1.6.09:
Trailer recognition control unit; Valid as of 1.6.09 with 156 engine: Oil cooling fan motor relay. |
20 |
| 90 | Effective 1.6.09:
AdBlue ® block fuse; AdBlue ® power relay. |
40 |
| 91 | DC / AC converter control unit | 25 |
| ECO start/stop:
Auxiliary transmission oil pump control unit; Valid for 642 engine: Heating element of the ventilation line. |
20 | |
| 92 | Effective 1.6.09: Spare. |
– |
| Courier |
||
| A | Terminal 15 relay | |
| B | 15R relay circuit (1) | |
| C | Heated rear window relay | |
| D | Applies to the diesel engine:
Fuel pump relay |
|
| E | Rear wiper relay | |
| F | Seat adjustment relay | |
| G | 15R relay circuit (2) | |
Instrument panel fuse panel
Fuse Box Location
The fuse box is located on the driver side of the instrument panel, behind the cover.
| No. | Description | Amps [A] |
| 116 | Driver’s seat control unit | 30 |
| 117 | Control unit for adaptive damping system | 15 |
| 118 | Reservation | – |
| 119 | Rear fan motor;
AMG Performance Media control unit (effective 1.6.12). |
7,5 |
| 120 | Reservation | – |
| 121 | Reservation | – |
| 122 | Reservation | – |
| 123 | Control unit of the direction light module | 20 |
| 124 | Reservation | – |
| 125 | Reservation | – |
| 126 | Front passenger seat control unit | 30 |
| 127 | Reservation | – |
| 128 | Reservation | – |
| 129 | Valid for the 156 engine:
Oil cooling fan motor relay |
20 |
| 130 | Reservation | – |
| 131 | Reservation | – |
| 132 | Reservation | – |
| 133 | Reservation | – |
| 134 | Reservation | – |
| 135 | Reservation | – |
Front Inbox (until 2010)
| No. | Description | Amps [A] |
| 88 | Pyrofuse:
Alternator; Starter. |
|
| 89 | SAM front control unit with fuse and relay module | 125 |
| 90 | Rear SAM control unit with fuse and relay module | 40 |
| 91 | Internal combustion engine fan motor and air conditioner with integrated controls | 80 |
| 100 | Air Conditioning Housing | 40 |
| 101 | Applies to the gasoline engine:
SAM front control unit with fuse and relay module |
60 |
| 103 | Applies to the diesel engine:
PTC heater |
150 |
| 104 | Internal fuse box | 70 |
| 105 | SAM front control unit with fuse and relay module | 100 |
| 106 | Rear SAM control unit with fuse and relay module | 150 |
| 107 | Reservation | – |
| 108 | Reservation | – |
| 109 | Reservation | – |
| 110 | Reservation | – |
from 2010
without ECO start/stop
ECO start / stop
| No. | Description | Amps [A] |
| 150 | no ECO start/stop:
Pyrofuse 88 |
400 |
| ECO start/stop:
Alternator; Starter. |
200 | |
| 151 | Internal combustion engine fan motor and air conditioner with integrated controls | 100 |
| 152 | SAM front control unit with fuse and relay module | 150 |
| 153 | no ECO start/stop:
Reservation |
100 |
| ECO start/stop function and battery position at the front:
SAM front control unit with fuse and relay module |
60 | |
| 154 | ECO start/stop function and battery position at the front:
Front SAM control unit with fuse and relay module. |
60 |
| Applies to diesel engine and ECO start/stop:
PTC heater |
150 | |
| 155 | no ECO start/stop:
Reservation |
50 |
| ECO start/stop function:
Reservation |
100 | |
| 156 | Applies to diesel engine without ECO start/stop:
PTC heater booster |
150 |
| ECO start/stop function:
SAM front control unit with fuse and relay module |
100 | |
| 157 | Applies to model 204.902 / 982/984 without ECO start/stop function:
Electro-hydraulic power steering; ECO start/stop: Spare parts. |
100 |
| 158 | no ECO start/stop:
Fan controller |
50 |
| ECO start/stop:
Rear SAM control unit with fuse and relay module |
150 | |
| 159 | Multifunctional control unit for special purpose vehicle | 50 |
| ECO start/stop:
Additional battery relay |
200 | |
| 160 | no ECO start/stop:
Reservation |
60 |
| ECO start/stop:
Fan controller |
50 | |
| 161 | no ECO start/stop:
SAM front control unit with fuse and relay module |
100 |
| Multifunctional control unit for special purpose vehicle | 50 | |
| 162 | no ECO start/stop:
Reservation |
100 |
| ECO start/stop:
Reservation |
60 | |
| 163 | no ECO start/stop:
Rear SAM control unit with fuse and relay module |
150 |
| 164 | without the ECO start/stop function:
Rear SAM control unit with fuse and relay module |
80 |
Rear inbox
Fuse box location
It is located in the trunk (right side), behind the lid.
| No. | Description | Amps [A] |
| 111 | Valid for gasoline engine:
ME-SFI control unit [ME] Applies to the diesel engine: CDI control unit |
60 |
| 112 | Multifunctional control unit for special purpose vehicle | 80 |
| 113 | Valid for the 156 engine:
Left fuel pump control unit; Right fuel pump control unit. |
40 |
| 114 | Reservation | – |
| 115 | Multifunction control unit for special purpose vehicle | 100 |
