Fuse box diagram Mercedes 205 and relay with designation and location (2024)

Mercedes W205 is the fourth generation of C-class cars of the German automaker Mercedes-Benz, which was produced in 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 with various body options: S205 wagon, w205 sedan, c205 coupe and A205 convertible. During this time, the model has been restyled. In this publication you can find a description of the fuses and relays Mercedes w205 with box diagrams, photos – examples of performance and locations. Select the fuse responsible for the cigarette lighter.

In the cabin, the fuse and relay box is located on the left side of the dashboard (on the parent side) behind a protective cover.

A high power fuse box can be installed at the feet of the front passenger.

Under the instrument panel, on the passenger side, on the rack behind the protective cover, there is another fuse box.

3015A Hybrid: Ignition fuse (F63) via high voltage cut-off device30230A Front right door control unit30330A Rear left door control unit30420A Valid for vehicles with gearbox 722: Servo drive module for automatic gearbox for DIRECT SELECT system30530A Driver’s seat control unitDriver’s seat heating control unit (up to 05/31/2015)Front seat heating control unit (from 06/01/2015)30630A Front passenger seat control unitFront passenger seat heating control unit (until 05/31/2015)Front seat heating control unit (from 06/01/2015)307Reserve30830A USA: Electrical plug connection for the Elektric-Brake-Control function30910A Emergency call system control unit5A HERMES control unitTelecom Services Communication Module310Reserve31110A Electronic controller for additional rear fan31210A Ceiling Control Panel31310A Hybrid: DC voltage converter control unit314Reserve3155A Transmission control unitOn vehicles with diesel engine: CDI control unitOn vehicles with petrol engine: ME control unit3167.5A Supplemental Restraint System control unit31730A Panoramic sliding sunroof control module (panoramic sliding sunroof)Sliding sunroof control module (sliding sunroof)31820A Auxiliary heater control unit3195A Hybrid: High voltage electric heater system32015A AIR BODY CONTROL3215A Japan: DSRC Toll Communications Control Unit32220A Head Unit3235A Parking assistance control unitMF1/17.5A Audio/COMAND DisplayAudio fan motor (COMAND APS)MF1/27.5A Mono multifunction cameraMultifunctional stereo cameraMF1/37.5A Rain and light sensor with additional functionsCeiling Control PanelMF1/47.5A Driver’s seat control unitDriver’s seat heating control unit (up to 05/31/2015)Front seat heating control unit (from 06/01/2015)MF1/57.5A Front passenger seat control unitFront passenger seat heating control unit (until 05/31/2015)Front seat heating control unit (from 06/01/2015)MF1/67.5A Signals from the steering column electronic module control unitMF2/15A Front left seat belt reversible pretensionerMF2/25A Audio control panel/ COMANDTouch panel (Audio 20 or COMAND APS radio)MF2/35A Front right seat belt reversible pretensionerMF2/45A Head-up displayMF2/55A Media connection moduleMF2/65A Hybrid: Electric air conditioner compressorMF3/15A Front SAM terminal 30g readback wireMF3/25A Radar control unitMF3/3ReserveMF3/45A Button block on the instrument panel on the driver’s sideMF3/55A Rear air conditioning control panelMF3/65A Tire pressure monitoring control unit

In the engine compartment, under the hood on the left side is the main fuse and relay box.

10040A Hybrid: Vacuum pump10115A Except AMG: Cable termination terminal 87/220A AMG: Cable termination terminal 87/210220A Except AMG: Cable termination terminal 87/125A AMG: Cable termination terminal 87/110315A Except AMG: Cable termination terminal 87/420A AMG: Cable termination terminal 87/410415A Except AMG: Cable termination terminal 87/320A AMG: Cable termination terminal 87/310515A Valid for vehicles with reduction gear 722.9 (except 722.930): Control unit for auxiliary transmission oil pump106Reserve10760A Valid for engine 274.9: Electric coolant pump10820A LED static headlights:Front right headlightHigh Performance LED or dynamic LED headlights:Front left headlightFront right headlight10930A Wiper motor11020A LED static headlights:Front left headlightHigh Performance LED or dynamic LED headlights:Front left headlightFront right headlight11130A Starter11215A Hybrid: Accelerator position sensor113Reserve11440A Compressor AIRMATIC11515A Horn left and horn right116Reserve117Reserve1185A Hybrid: Signals from the ESP control unit11915A Cable termination terminal 87 C21205A Except AMG: Cable termination terminal 87 C115A AMG: Cable termination terminal 87 C11215A Signals from the ESP control unit1225A CPC Relay123Reserve124Reserve1255A Front SAM control unit1265A Transmission control unitOn vehicles with diesel engine: CDI control unitOn vehicles with petrol engine: ME control unit1275A Hybrid: Voltage drop limiter1285A Front left headlight and outdoor light switch12930A Hybrid: Starter terminal 50 relay129A30A Hybrid: Starter terminal 50 relayRelayGTerminal 15 relay, engine compartmentHStarter terminal 50 relayIHybrid: Vacuum pump relay (+)JCPC relayKValid for vehicles with gearbox 722.9 (except 722.930): Oil pump relayLHorn relayMWiper heater relayNRelay terminal 87MOHybrid: Starter terminal 15 relayPValid for engine 274.9: Coolant pump relayQHybrid: Vacuum pump relay (-)RAIRMATIC relay

Another fuse and relay box is located in the trunk under a protective cover.

40025A AdBlue® control unit40115A AdBlue® control unit40220A AdBlue® control unit40330A Before 11/30/2015: Switch for partially electric seat adjustment, front passenger seat25A From 12/01/2015: Switch for partially electric seat adjustment, front passenger seat40430A Before 11/30/2015: Driver’s seat partially electric adjustment switch25A From 12/01/2015: Driver’s seat partially electric adjustment switch405Reserve40630A Front left door control unit407Reserve40830A W205, S205, V205: Rear right door control unitA205, C205: Rear compartment systems control unit409Reserve41015A Remote heater radio remote control receiver41130A Front left seat belt reversible pretensioner4127.5A Hybrid: Battery management system control unit4135A Trunk lid actuator control unit4145A Tuner module (TV tuner, digital radio (DAB)) or SIRIUS satellite radio)4155A Camera cover control unitAir Aroma Generator4167.5A Antenna Amplifier/ Mobile Phone CompensatorMobile phone contact board4175A 360° Camera Control UnitRear View Camera4185A Seat heating control unit, rearAIRSCARF system control unit4195A Lumbar support adjustment control unit for front passenger seat4205A Lumbar adjustment control unit for driver’s seat421Reserve422Reserve4235A Speaker amplifier control unit42415A Valid for vehicles with engine 276: Motorsound control unit425Reserve426Reserve427Reserve428Reserve429Reserve430Reserve43125A Multifunctional control unit for special vehicles43225A Multifunctional control unit for special vehicles43315A Trailer recognition control unit43415A Trailer recognition control unit30A AMG: Electric parking brake control unit43525A Trailer recognition control unit25A AMG: Electronic differential control unit43615A Trailer recognition control unit43725A Trailer recognition control unit43830A AC/DC converter control unit4395A TaximeterTaximeter in interior rear-view mirror25A A205: Rear compartment systems control unit44030A Seat heating control unit, rearAIRSCARF system control unit44130A AIRSCARF system control unit44225A Fuel pump control unit44330A Front right seat belt reversible pretensioner44415A Electric plug connection tablet computer44515A S205: Socket in trunk44615A Cigarette lighter with front ashtray illumination (socket in saloon)44715A 12V socket in the center console, rear right44810A Valid for vehicles with gearbox 722, 725: Park lock capacitor4495A Valid for vehicles with engine 626: Fuel filter element with integrated heatingAMG: Electrical parking brake control unit4505A Rear control unit SAM4515A Fuel pump control unitAdBlue® control unit4525A Rear bumper integrated radar sensor outside rightIntegrated radar sensor rear bumper outside leftRadar sensor in the rear bumper in the centerRadar sensor in the rear bumper on the right outsideRadar sensor in the rear bumper on the left outside4535A Radar sensor in front bumper, leftRadar sensor in front bumper, rightCOLLISION PREVENTION ASSIST control module4547.5A Valid for vehicles with gearbox 722: Control unit for fully integrated automatic transmission control5A Package for driving schools:Footwell lighting switchPedal control sensorValid for type 253: AdBlue® control unit4555A AC/DC converter control unit4565A Far field radar sensor frontElectrical control module DISTRONIC4575A Hybrid:Power electronic equipment control unitBattery management system control unitAMG:Electronic differential control unitActive engine mount control unit4585A Module for keyless opening of the trunk lid under the rear bumper4595A Hybrid: ChargerAMG: AMG chassis control unit46010A Control unit kEyLESS-GO4615A Antenna amplifier FM 1, AM, CL and KEYLESS-GO46240A Speaker amplifier control unit46330A W205, S205, V205: Heated rear window (R1) via rear window anti-interference capacitorA205, C205: Electrical connector for soft top/vehicle interior46440A Trunk lid actuator control unitTailgate Actuator Control Module46540A Rear control unit SAM46640A Rear control unit SAM46740A Valid for vehicles with 626 engine: Fuel filter element with integrated heatingA205: Rear compartment systems control unitRelaySSalon terminal 15 relayTHeated rear window relayU2nd row cup holder and socket relayВAdBlue® relayXRelay for refrigerator box and sockets of the 1st row of seats / trunkYBackup relayZR1Valid for vehicles with engine 626: Fuel filter heating relayZR2Backup relayZR3Backup relay

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