Mercedes-Benz C-Class (W205) (2015-2019) Fuse Diagram

Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz C-Class C180, C200, C220, C250, C300, C350, C400, C450, AMG C43 & C63 (W205, S205, V205, C205, A205) (2015, 2016, 2017, 2018, 2019).

Mercedes-Benz C-Class (W205) (2015-2019)

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.

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.

Instrument Panel Fuse Box

The fuse panel is located on the driver’s side of the instrument panel.

Instrument Panel Fuse Box Location

To access:

  • Open the driver’s door.
  • To open: pull out cover (1) slightly at the bottom in the direction of the arrow (3).
  • Fold cover (1) outwards in the direction of the arrow (2).
  • To close: fold in cover (1) until it engages.

Instrument Panel Fuse Box Diagram

Fused componentA
200Front SAM control unit50
201Front SAM control unit40
202Alarm siren5
ATA [EDW]/tow-away protection/interior protection control unit (A205)
203Valid with transmission 716: Electric steering lock control unit20
204Diagnostic connector5
205Electronic ignition lock control unit7.5
206Analog clock5
207Climate control control unit15
208Instrument cluster7.5
209Climate control operating unit5
Upper control panel control unit
210Steering column tube module control unit5
211AMG: Electronic Stability Program control unit25
212as of 01.06.2016: Antenna changeover switch for telephone and stationary heated5
213Electronic Stability Program control unit5
214AMG: Electric parking brake control unit30
215Spare-
216Glove compartment lamp7.5
217Japan version: Dedicated Short-Range Communications control unit5
218Supplemental Restraint System control unit7.5
219Weight sensing system (WSS) control unit5
220Spare-
Relay
FRelay, circuit 15R

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Fuse Box in the Front-Passenger Footwell

Fuse Box in the Front-Passenger Footwell (Location)

  • Open the front-passenger door.
  • To open: fold cover (1) out towards the rear and remove it.
  • To close: clip in cover (1) at the rear.
  • Fold cover (1) forwards until it engages.

Fuse Box in the Front-Passenger Footwell (Diagram)

Fused componentA
301Hybrid: Pyrofuse via high-voltage disconnect device5
302Right front door control unit30
303W205, S205, V205: Left rear door control unit30
A205, C205: Rear control unit
304Valid for transmission 722: Intelligent servo module for DIRECT SELECT20
305Driver seat control unit30
Driver seat heater control unit
Front seat heater control unit
306Front passenger seat control unit30
Front passenger seat heater control unit
Front seat heater control unit
307AMG: Active engine mounts control unit5
308USA version: Electric Brake Control electrical connector30
309Emergency call system control unit10
HERMES control unit5
Telematics services communications module
310AMG: Active engine mounts control unit20
311Booster blower electronic blower regulator10
312Overhead control panel control unit10
313Hybrid: Power electronics control unit10
314AMG: Electronic differential control unit5
315Powertrain control unit5
Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit
316Supplemental Restraint System control unit7.5
317Panoramic sliding sunroof control module30
Sliding roof control module
318Stationary heater control unit20
319Hybrid: High-voltage PTC heater5
320AIRMATIC control unit25
Adaptive damping system control unit
321Japan version: Dedicated Short-Range Communications control unit5
322Head unit20
323Parking system control unit5
MF1/1Audio/COMAND display7.5
Audio equipment fan motor
MF1/2Stereo multifunction camera7.5
Mono multifunction camera
MF1/3Rain/light sensor with additional functions7.5
W205, S205, V205: Overhead control panel control unit
MF1/4Driver seat control unit7.5
Driver seat heater control unit
Front seat heater control unit
MF1/5Front passenger seat control unit7.5
Front passenger seat heater control unit
Front seat heater control unit
MF1/6Steering column tube module control unit7.5
MF2/1Left front reversible emergency tensioning retractor5
MF2/2Audio/COMAND control panel5
Touchpad
MF2/3Right front reversible emergency tensioning retractor5
MF2/4Heads-up display5
MF2/5Multimedia connection unit5
MF2/6Hybrid: Electrical refrigerant compressor5
MF3/1Feedback line, terminal 30g, front SAM control unit5
MF3/2Radar sensors control unit5
MF3/3Spare-
MF3/4Driver side instrument panel button group5
MF3/5Rear air conditioning operating unit5
MF3/6Tire pressure monitor control unit5

Interior Prefuse Box

Interior Prefuse Box

F96 – Additional battery circuit 30 fuses
F96/1 – Exhaust flaps circuit 87 fuses

Fused componentA
1Engine compartment prefuse box-
2Hybrid: Additional battery relay for ECO start/stop function150
3Blower regulator40
4Spare-
5Valid for diesel engine: PTC heater booster150
6Right A-pillar fuse box80
7Rear fuse and relay module150
8Spare-
9Spare-
10Valid for transmission 722, 725: Fully integrated transmission control unit60
Hybrid: Fully integrated transmission control unit100
11Spare-
12Rear fuse and relay module40
13Right A-pillar fuse box50

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Engine Compartment Fuse Box

Engine Compartment Fuse Box Location

  • Open the hood.
  • To open: press safety clips (1) on the cover together.
  • Remove fuse box cover (2) upwards.

Engine Compartment Fuse Box Location

  • Use a dry cloth to remove any moisture from the fuse box.
  • Loosen screws (3), fold up fuse box lid (4) and remove it.
  • To close: check whether the seal is positioned correctly in the lid (4).
  • Insert lid (4) into the bracket at the rear of the fuse box.
  • Fold-down lid (4) of the fuse box and tighten screws (3).

Engine Compartment Fuse Box Diagram

Fused componentA
100Hybrid: Vacuum pump40
101Valid except AMG: Connector sleeve, circuit 87/215
AMG: Connector sleeve, circuit 87/220
102Valid except AMG: Connector sleeve, circuit 87/120
AMG: Connector sleeve, circuit 87/125
103Valid except AMG: Connector sleeve, circuit 87/415
AMG: Connector sleeve, circuit 87/420
104Valid except AMG: Connector sleeve, circuit 87/315
AMG: Connector sleeve, circuit 87/320
105Valid for transmission 722.9 (except 722.930): Automatic transmission fluid auxiliary oil pump control unit15
106Spare-
107Valid with engine 274.9: Electric coolant pump60
108Static LED headlamp: Right front lamp unit20
High performance LED, Dynamic LED headlamp:
   Left front lamp unit
   Right front lamp unit
109Wiper motor30
110Static LED headlamp: Left front lamp unit20
High performance LED, Dynamic LED headlamp:
   Left front lamp unit
   Right front lamp unit
111Starter30
112Hybrid: Accelerator pedal sensor15
113Spare-
114AIRmatic compressor40
115Left horn and right horn15
116Spare-
117Spare-
118Hybrid: Electronic Stability Program control unit5
119Circuit 87 C2 connector sleeve15
120Valid except AMG: Circuit 87 C1 connector sleeve5
AMG: Circuit 87 C1 connector sleeve15
121Electronic Stability Program control unit5
122CPC relay5
123Spare-
124Spare-
125Front SAM control unit5
126Powertrain control unit5
Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit
127Hybrid: Voltage dip limiter5
128Left front lamp unit and exterior lights switch5
129Hybrid: Starter circuit 50 relay30
129AHybrid: Starter circuit 50 relay30
Relay
GEngine compartment circuit 15 relay
HStarter circuit 50 relay
IHybrid: Vacuum pump relay (+)
JCPC relay
KValid for transmission 722.9 (except 722.930): Oil pump relay
LHorn relay
MWiper park position heater relay
NCircuit 87M relay
OHybrid: Starter circuit 15 relay
PValid with engine 274.9: Coolant pump relay
QHybrid: Vacuum pump relay (-)
RAIRmatic relay

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Engine Prefuse Box

Engine Prefuse Box

F32/3k1 – Decoupling relay

Fused componentA
1Spare-
2Valid for diesel engine: Glow output stage100
3Engine fuse and relay module60
4On-board electrical system battery connection-
5Engine fuse and relay module150
6Left fuse and relay module125
7Fan motor (600 W / 850 W)80
8Electrical power steering control unit125
9Fan motor (1000 W)150
10Vehicle interior prefuse box200
11Spare-
12Hybrid: Power electronics control unit-
With engine 651.9 and USA version: Catalytic converter heater control unit
13Alternator400
C1Hybrid: Decoupling relay-
C2Hybrid: Circuit 31-
C3/1Valid except AMG: Electronic Stability Program control unit40
C3/2Electronic Stability Program control unit60

Luggage Compartment Fuse Box

Luggage Compartment Fuse Box Location

  • Open the trunk lid.
  • Lift the trunk floor upwards.
  • To open: swing cover (1) upwards in the direction of the arrow.
  • To close: fold-down cover (1) in the opposite direction to the arrow.
  • Make sure that the cover is in the recess provided for it.

Luggage Compartment Fuse Box Diagram

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Fused componentA
400BlueTEC: AdBlue control unit25
401BlueTEC: AdBlue control unit15
402BlueTEC: AdBlue control unit20
403Valid up to 30.11.2015: Front passenger seat partially electric seat adjustment switch30
Valid as of 01.12.2015: Front passenger seat partially electric seat adjustment switch25
404Valid up to 30.11.2015: Driver seat partially electric seat adjustment switch30
Valid as of 01.12.2015: Driver seat partially electric seat adjustment switch25
405Spare-
406Left front door control unit30
407Spare-
408W205, S205, V205: Right rear door control unit30
A205, C205: Rear control unit
409Spare-
410Stationary heater radio remote control receiver5
Antenna changeover switch for telephone and stationary heater
411Left front reversible emergency tensioning retractor30
412Hybrid: Battery management system control unit7.5
413Trunk lid control control unit5
414Tuner unit5
415Camera cover control unit5
Perfume atomizer generator
416Cellular telephone system antenna amplifier/compensator7.5
Mobile phone contact plate
417360° camera control unit5
Reversing camera
418Rear seat heater control unit5
AIRSCARF control unit
419Front passenger seat lumbar support adjustment control unit5
420Driver seat lumbar support adjustment control unit5
421Spare-
422Spare-
423Sound system amplifier control unit5
424AIR BODY CONTROL Plus control unit15
Valid for engine 276: Engine sound control unit 
425Spare-
426Spare-
427Spare-
428Spare-
429Spare-
430Spare-
431Special-purpose vehicle multifunction control unit25
432Special-purpose vehicle multifunction control unit25
433Trailer recognition control unit15
434Trailer recognition control unit15
AMG: Electric parking brake control unit30
435Trailer recognition control unit25
AMG: Electronic differential control unit
436Trailer recognition control unit15
437Trailer recognition control unit25
438DC/AC converter control unit30
439Taximeter5
Mirror taximeter
A205: Rear control unit25
440Rear seat heater control unit30
AIRSCARF control unit
441AIRSCARF control unit30
442Fuel system control unit25
443Right front reversible emergency tensioning retractor30
444Tablet PC electrical connector15
445S205: Luggage compartment socket15
446Front cigarette lighter with ashtray illumination15
Vehicle interior power outlet
447Right rear center console socket 12V15
448Valid for transmission 722, 725: Park pawl capacitor10
449Valid for engine 626: Fuel filter element with integrated heater5
AMG: Electric parking brake control unit
450Rear SAM control unit5
451Fuel system control unit5
BlueTEC: AdBlue control unit
452Integrated outer right rear bumper radar sensor5
Integrated outer left rear bumper radar sensor
Center rear bumper radar sensor
Outer right rear bumper radar sensor
Outer left rear bumper radar sensor
453Left front bumper radar sensor5
Right front bumper radar sensor
COLLISION PREVENTION ASSIST controller unit
454Valid for transmission 722: Fully integrated transmission control unit7.5
Driving school package:5
   Footwell illumination switch
   Pedal operation monitor switch
BlueTEC: AdBlue control unit  
455DC/AC converter control unit5
456Front long-range radar sensor5
DISTRONIC electric controller unit
457Hybrid:5
   Power electronics control unit
   Battery management system control unit
AMG:
   Electronic differential control unit
   Active engine mounts control unit
458Rear switching module5
459Hybrid: Charger5
AMG: AMG suspension control unit
460KEYLESS-GO control unit10
461FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier5
462Sound system amplifier control unit40
463W205, S205, V205: Rear window heater via rear window interference suppression capacitor30
A205, C205: Soft top/vehicle interior electrical connector
464Trunk lid control control unit40
Liftgate control control unit
465Rear SAM control unit40
466Rear SAM control unit40
467Valid for engine 626: Fuel filter element with integrated heater40
A205: Rear control unit
Relay
SVehicle interior circuit 15 relay
TRear window heater relay
U2nd seat row cup holder and sockets relay
VBlueTEC: AdBlue relay
X1 st seat row/trunk refrigerator box and sockets relay
YSpare relay
ZR1Valid for engine 626: Fuel filter heater relay
ZR2Reserve relay
ZR3Reserve relay