Mercedes-Benz C-Class W205 vehicles have several fuse panels. Let's take a look at all of them.

Interior Driver's Side Fuses

w205 fuses

This fuse box is located on the side of the dashboard on the driver's side.

w205 fuses
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

c class fuses  2015 2016 2017 2018 2019 2020 2021

These fuses are located in the footwell on the passenger side.

w205 fuses c class

Remove the plastic cover to access the passenger fuses.

w205 c class c300 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

w205 main fuses

Main fuse box in the engine bay. 

w205 fuses

 

 

 

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 

mercedes c class fuses w205

Fuse panel in the trunk area. 

fuses w205  c300 2016 2017 2018 2019 2020 2021

 

 

Location System Ampere
400 BlueTEC: AdBlue control unit  25
401 BlueTEC: AdBlue control unit  15
402 BlueTEC: AdBlue control 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 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 lighter with 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 AdBlue relay   
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

large fuses

These are pre-fuses protecting critical circuits. Located near the battery. 

fuses mercedes 205  c300 c250 c43

Note the fuses on the side as well, next to the battery. 

 

 

Comments

Visitor
Member since 2020-05

You guys are good....... Pls am having a problem on my w205, can't figure the location of electronic parking brake module

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Visitor
Member since 2020-05

Normally wouldn't leave a comment - but seriously thank you so much. I'm sure this was a lot of hard work. But you have probably helped so many people including myself. So thank you

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