Updated on Reading Time: 5 minutes
Need to find the Fuses and Relays on your Mercedes-Benz C-Class W205? Learn how to locate the fuse boxes of your Mercedes-Benz by following the procedures below.
Interior Driver’s Side Fuses
This fuse box is located on the side of the dashboard on the driver’s side.
Location | System | Ampere |
---|---|---|
200 | Front SAM control unit | 50 |
201 | Front SAM control unit | 40 |
202 | Alarm siren | 5 |
203 | Electric steering lock control unit | 20 |
204 | Diagnostic connector | 5 |
205 | Electronic ignition lock control unit | 7.5 |
206 | Analog clock | 5 |
207 | Climate control unit | 15 |
208 | Instrument cluster | 7.5 |
209 | Climate control operating unit | 5 |
210 | Steering column tube module control unit | 5 |
211 | Electronic Stability Program control unit | 25 |
212 | Antenna changeover switch for telephone and stationary heated | 5 |
213 | Electronic Stability Program control unit | 5 |
214 | Electric parking brake control unit | 30 |
215 | Not Used | – |
216 | Glove compartment lamp | 7.5 |
217 | Dedicated Short-Range Communications control unit | 5 |
218 | Supplemental Restraint System control unit | 7.5 |
219 | Weight sensing system (WSS) control unit | 5 |
220 | Not Used | – |
F Relay | Relay, circuit 15R |
Front Passenger Footwell
These fuses are located in the footwell on the passenger side.
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Remove the plastic cover to access the passenger fuses.
Location | System | Ampere |
---|---|---|
301 | Hybrid:Pyrofuse via high-voltage disconnect device | 5 |
302 | The right front door control unit | 30 |
303 | W205, S205, V205:Left rear door control unit | 30 |
304 | Valid for transmission 722:Intelligent servo module for DIRECT SELECT | 20 |
305 | Driver seat control unit, Heater | 30 |
306 | Front passenger seat control unit, Heater | 30 |
307 | AMG:Active engine mounts control unit | 5 |
308 | USA version:Electric Brake Control electrical connector | 30 |
309 | Emergency call system control unit | 10 |
310 | Active engine mounts control unit | 20 |
311 | Booster blower electronic blower regulator | 10 |
312 | Overhead control panel control unit | 10 |
313 | Power electronics control unit | 10 |
314 | The electronic differential control unit | 5 |
315 | Powertrain control unit | 5 |
316 | Supplemental Restraint System control unit | 7.5 |
317 | The panoramic sliding sunroof control module | 30 |
318 | The stationary heater control unit | 20 |
319 | High-voltage PTC heater | 5 |
320 | AIRMATIC control unit | 25 |
321 | Dedicated Short-Range Communications control unit | 5 |
322 | Head unit | 20 |
323 | Parking system control unit | 5 |
MF1/1 | Audio/COMAND display | 7.5 |
MF1/2 | Stereo multifunction camera | 7.5 |
MF1/3 | Rain/light sensor with additional functions | 7.5 |
MF1/4 | Driver seat control unit | 7.5 |
MF1/5 | Front passenger seat control unit | 7.5 |
MF1/6 | Steering column tube module control unit | 7.5 |
MF2/1 | Left front reversible emergency tensioning retractor | 5 |
MF2/2 | Audio/COMAND control panel | 5 |
MF2/3 | Right front reversible emergency tensioning retractor | 5 |
MF2/4 | Heads-up display | 5 |
MF2/5 | Multimedia connection unit | 5 |
MF2/6 | Hybrid:Electrical refrigerant compressor | 5 |
MF3/1 | Feedback line, terminal 30g, front SAM control unit | 5 |
MF3/2 | Radar sensors control unit | 5 |
MF3/3 | Spare | – |
MF3/4 | Driver-side instrument panel button group | 5 |
MF3/5 | Rear air conditioning operating unit | 5 |
MF3/6 | Tire pressure monitor control unit | 5 |
Engine Bay Main Fuses
Main fuse box in the engine bay.
Location | System | Ampere |
---|---|---|
100 | Hybrid:Vacuum pump | 40 |
101 | Circuit 87/2 | 15 |
102 | Circuit 87/1 | 20 |
103 | Circuit 87/4 | 15 |
104 | Circuit 87/3 | 15 |
105 | Automatic transmission fluid auxiliary oil pump control unit | 15 |
106 | Spare | – |
107 | Electric coolant pump | 60 |
108 | LED headlamp | 20 |
109 | Wiper motor | 30 |
110 | Static LED headlamp | 20 |
111 | Starter | 30 |
112 | Accelerator pedal sensor | 15 |
113 | Spare | – |
114 | AIRmatic compressor | 40 |
115 | Left horn and right horn | 15 |
116 | Spare | – |
117 | Spare | – |
118 | Electronic Stability Program control unit | 5 |
119 | Circuit 87 C2 connector sleeve | 15 |
120 | Circuit 87 C1 connector sleeve | 5 |
121 | Electronic Stability Program control unit | 5 |
122 | CPC relay | 5 |
123 | Spare | – |
124 | Spare | – |
125 | Front SAM control unit | 5 |
126 | Powertrain control unit | 5 |
127 | Hybrid:Voltage dip limiter | 5 |
128 | Left front lamp unit and exterior lights switch | 5 |
129 | Starter circuit 50 relay | 30 |
129A | Starter circuit 50 relay | 30 |
Relay | ||
G | Engine compartment circuit 15 relay | |
H | Starter circuit 50 relay | |
I | Vacuum pump relay (+) | |
J | CPC relay | |
K | Oil pump relay | |
L | Horn relay | |
M | Wiper park position heater relay | |
N | Circuit 87M relay | |
O | Starter circuit 15 relay | |
P | Coolant pump relay | |
Q | Vacuum pump relay (-) | |
R | AIRmatic relay |
Trunk Fuses
Fuse panel in the trunk area.
Location | System | Ampere |
---|---|---|
400 | BlueTEC:AdBluecontrol unit | 25 |
401 | BlueTEC:AdBluecontrol unit | 15 |
402 | BlueTEC:AdBluecontrol unit | 20 |
403 | Front passenger seat partially electric seat adjustment switch | 30 |
404 | Valid up to 30.11.2015:Driver seat partially electric seat adjustment switch | 30 |
405 | Not used | – |
406 | The left front door control unit | 30 |
407 | Not used | – |
408 | W205, S205, V205:Right rear door control unit | 30 |
409 | Not used | – |
410 | Stationary heater radio remote control receiver | 5 |
411 | Left front reversible emergency tensioning retractor | 30 |
412 | Hybrid:Battery management system control unit | 7.5 |
413 | Trunk lid control unit | 5 |
414 | Tuner unit | 5 |
415 | Camera cover control unit/ Perfume atomizer | 5 |
416 | Cellular telephone system antenna amplifier/compensator | 7.5 |
417 | 360° camera control unit/ Backup camera | 5 |
418 | Rear seat heater control unit/ Airscarf | 5 |
419 | Front passenger seat lumbar support adjustment control unit | 5 |
420 | Driver seat lumbar support adjustment control unit | 5 |
421 | Not used | – |
422 | Not used | – |
423 | Sound system amplifier control unit | 5 |
425 | Not used | – |
426 | Not used | – |
427 | Not used | – |
428 | Not used | – |
429 | Not used | – |
430 | Not used | – |
431 | Special-purpose vehicle multifunction control unit | 25 |
432 | Special-purpose vehicle multifunction control unit | 25 |
433 | Trailer recognition control unit | 15 |
434 | Trailer recognition control unit | 15 |
435 | Trailer recognition control unit | 25 |
AMG:Electronic differential control unit | ||
436 | Trailer recognition control unit | 15 |
437 | Trailer recognition control unit | 25 |
438 | DC/AC converter control unit | 30 |
439 | Taximeter | 5 |
440 | Rear seat heater control unit / Airscarf Module | 30 |
441 | AIRSCARF control unit | 30 |
442 | Fuel system control unit | 25 |
443 | Right front reversible emergency tensioning retractor | 30 |
444 | Tablet PC electrical connector | 15 |
445 | S205:Luggage compartment socket | 15 |
446 | Front cigarette lighterwith ashtray illumination | 15 |
447 | Right rear center console socket 12V | 15 |
448 | Valid for transmission 722, 725:Park pawl capacitor | 10 |
449 | Valid for engine 626:Fuel filter element with integrated heater | 5 |
450 | Rear SAM control unit | 5 |
451 | Fuel system control unit | 5 |
452 | The integrated outer right rear bumper radar sensor | 5 |
453 | The left front bumper radar sensor | 5 |
454 | Valid for transmission 722:Fully integrated transmission control unit | 7.5 |
455 | DC/AC converter control unit | 5 |
456 | The front long-range radar sensor | 5 |
457 | Hybrid: | 5 |
458 | Rear switching module | 5 |
459 | Hybrid:Charger | 5 |
460 | KEYLESS-GO control unit | 10 |
461 | FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier | 5 |
462 | Sound system amplifier control unit | 40 |
463 | W205, S205, V205:Rear window heater via rear window interference suppression capacitor | 30 |
464 | Trunk lid control unit | 40 |
465 | Rear SAM control unit | 40 |
466 | Rear SAM control unit | 40 |
467 | Valid for engine 626:Fuel filter element with integrated heater | 40 |
Relay | ||
S | Vehicle interior circuit 15 relay | |
T | Rear window heater relay | |
U | 2nd seat row cup holder and sockets relay | |
V | AdBluerelay | |
X | 1 st seat row/trunk refrigerator box and sockets relay | |
Y | Not used relay | |
ZR1 | Fuel filter heater relay | |
ZR2 | Reserve relay | |
ZR3 | Reserve relay |
.
Engine Bay Pre Fuses
These are pre-fuses protecting critical circuits. Located near the battery.
Note the fuses on the side as well, next to the battery.
We hope you find the 2015-2020 Mercedes-Benz C-Class W205 Fuse Locations guide helpful. Check these troubleshooting and repair guides for more help on your Mercedes-Benz.
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