Find fuses for Mercedes-Benz R Class W251: symptom assistant, positions, panels, available ratings and an A4 PDF sheet. Confirm the variant in the manual.
| Fuse | Rating | Protected circuit |
|---|---|---|
| 78 | 150 A | Diesel engine:Heater booster control unit |
| 79 | 60 A | Rear SAM control unit |
| 80 | 60 A | Rear SAM control unit |
| 81 | 40 A | as of 2009:Valid for engine 642.870:AdBlue®supply relayValid with engine 276:Engine compartment fuse and relay box (P2047, P2048, P2049, P204B) |
| 82 | 150 A | up to 2008: Load compartment fuse and relay box |
| 83 | 5 A | USA version:WSS (Weight Sensing System) control unit |
| 84 | 10 A | Restraint systems control unit |
| 85 | 25 A | as of 2009: DC/AC converter control unit (115 V socket) |
| 86 | 30 A | Cockpit fuse box |
| 88 | 70 A | up to 2008: Front SAM control unit |
| 89 | 70 A | Front SAM control unit |
| 90 | 70 A | Front SAM control unit |
| 91 | 40 A | Blower regulator |
| Fuse | Rating | Protected circuit |
|---|---|---|
| 5 | 40 A | Valid as of 1.7.09:ESP control unit |
| 6 | 40 A | Valid up to 30.6.09:ESP control unit |
| 7 | — | A100AC with integrated control additional fan motor |
| 8 | 150 A | Engine compartment fuse and relay box |
| Fuse | Rating | Protected circuit |
|---|---|---|
| 100 | 30 A | Wiper motor |
| 101 | 15 A | up to 2008:AAC with integrated control additional fan motorValid for engines 113, 272:Purge control valveValid for engine 272:Radio interference suppression capacitor 1Radio interference suppression capacitor 2Cylinder 1 ignition coilCylinder 2 ignition coilCylinder 3 ignition coilCylinder 4 ignition coilCylinder 5 ignition coilCylinder 6 ignition coilValid for engine 642:O2 sensor upstream of CATCDI control unitas of 2009:Engine and air conditioning electric suction fan with integrated controlValid for engine 272, 273:Purging switchoverCircuit 87 M1e connector sleeveValid with engine 642:CDI control unitO2 sensor upstream of CATValid for engine 642.870/872:O2 sensor upstream of CAT (P0030, P0031, P0032, P0036) |
| 102 | 15 A | up to 2008:Valid for engine 642:Recirculation pump for transmission oil coolerValid for engine 156:Engine coolant circulation pumpas of 2009:Valid for engine 642, engine 642.870 up to 31.7.10:Transmission cooler circulation pumpValid with engine 276:Charge air cooler circulation pump |
| 103 | 25 A | up to 2008:Valid for engine 113:ME-SFI [ME] control unitCylinder 1 fuel injection valveCylinder 2 fuel injection valveCylinder 3 fuel injection valveCylinder 4 fuel injection valveCylinder 5 fuel injection valveCylinder 6 fuel injection valveCylinder 7 fuel injection valveCylinder 8 fuel injection valveValid for engine 642:CDI control unitas of 2009:Valid for engine 642.950, 642.870/872:CDI control unitValid for engine 272:ME-SFI [ME] control unitValid with engine 276:ME-SFI [ME] control unitEngine/engine compartment connector (P0200, P0201, P0202, P0203) |
| 104 | 15 A | up to 2008:Valid for engine 113:Left O2 sensor upstream TWC [KAT]Right oxygen O2 sensor upstream of catalytic converterLeft O2 sensor downstream TWC [KAT]Right O2 sensor downstream TWC [KAT]Variable intake manifold switchover valveEGR vacuum transducerAir pump change-over valveValid for engine 272:Heating system shutoff valveIntake manifold tumble flap switchover valveAir pump change-over valveThree-disk thermostat valvePressure regulating on the valve power steering unit pumpValid for engine 642:Left hot film mass air flow sensorRight hot film mass air flow sensorIntake port shutoff motorGlow time output stageVent line heater elementPower steering pump pressure regulator valveLeft exhaust gas recirculation positionerBoost pressure positioneras of 2009:Valid for engine 272, 273:Connector sleeve, circuit 87 M2eValid for engine 642.950:Circuit 87 connector sleeveValid for engine 642.870/872:Circuit 87D2 connector sleeve (P0030, P0031, P0032, P0036) |
| 105 | 15 A | up to 2008:Valid for engine 113:ME control unitRadio interference suppression capacitor 1Radio interference suppression capacitor 2Cylinder 1 ignition coilCylinder 2 ignition coilCylinder 3 ignition coilCylinder 4 ignition coilCylinder 5 ignition coilCylinder 6 ignition coilCylinder 7 ignition coilCylinder 8 ignition coilValid for engine 272:ME control unitHot film mass air flow sensorHall sensor for left inlet camshaftRight intake camshaft Hall sensorLeft exhaust camshaft Hall sensorRight exhaust camshaft Hall sensorLeft intake camshaft solenoidRight camshaft intake solenoidLeft exhaust camshaft solenoidRight exhaust camshaft solenoidCylinder 1 fuel injection valveCylinder 2 fuel injection valveCylinder 3 fuel injection valveCylinder 4 fuel injection valveCylinder 5 fuel injection valveCylinder 6 fuel injection valveValid for engine 642:CDI control unitas of 2009:Valid for engine 272, 273:ME-SFI [ME] control unitCircuit 87 M1i connector sleeveValid with engine 276:Engine/engine compartment connectorValid for engine 642.950:CDI 1.0 PK control unitEngine compartment/interior compartment connectorValid for engine 642.870/872:CDI control unitEngine compartment/interior compartment connectorCircuit 87 connector sleeve (P0100, P0101, P0102, P0103) |
| 107 | 40 A | Valid for engine 113, 272, 273:Electric air pump (P0410, P0411, P0412, P0413) |
| 108 | 40 A | AIRmatic compressor unit |
| 109 | 25 A | ESP control unit |
| 110 | 10 A | Alarm signal horn with additional batteryAlarm siren |
| 111 | 30 A | Intelligent servo module for DIRECT SELECT |
| 112 | 7,5 A | Left front lamp unitRight front lamp unit |
| 113 | 15 A | Left fanfare hornRight fanfare horn |
| 114 | 5 A | up to 2008:Front SAM control unitValid for engine 272:ME control unitas of 2009: Front SAM control unit |
| 115 | 5 A | ESP control unit |
| 116 | 7,5 A | Electric controller unit (VGS) |
| 117 | 7,5 A | Distronic (DTR) controller unit |
| 118 | 5 A | Valid for engine 272, 273, 276:ME control unitValid for engine 642:CDI control unit |
| 119 | 5 A | Valid for engine 642.870/872:CDI control unit |
| 120 | 10 A | up to 2008:Valid for engine 113, 272:ME control unitValid for engine 642:CDI control unitas of 2009:Valid for engine 272, 273, 276:Engine circuit 87 relayME-SFI [ME] control unitValid with engine 642:Engine circuit 87 relay |
| 121 | 20 A | STH heater unit |
| 122 | 25 A | Valid for engine 113, 272, 273, 276, 642:Starter |
| 123 | 20 A | Valid for diesel engine as of 1.9.08:Fuel filter condensation sensor with heating element |
| 124 | 7,5 A | as of 2009: Electrohydraulic power steering |
| Fuse | Rating | Protected circuit |
|---|---|---|
| 20 | 5 A | Interference suppression filter for radio antennaMicrophone array control unit (up to 2008; except Japan version)Voice control system (VCS [SBS]) control unit (up to 2008; USA version |
| 21 | 5 A | RCP [HBF] control unit |
| 22 | 5 A | Parktronic system (PTS) control unitStationary heater (STH) radio remote control receiver (as of 2009) |
| 23 | 10 A | DVD player (rear entertainment system)E-net compensatorRear audio control unit (up to 2008)Portable CTEL separation point (up to 2008; Japan version)Universal Portable CTEL Interface (UPCI [UHI]) control unit (up to 2008; Japan version)COMAND operating, display and controller unit (as of 2009) |
| 24 | 40 A | Right front reversible emergency tensioning retractor |
| 25 | 15 A | up to 2008:Radio (except USA version and Japan version)Radio and navigation unit (except USA version and Japan version)COMAND operating, display and controller unit |
| 26 | 25 A | Right front door control unit |
| 27 | 30 A | Front passenger seat adjustment comfort relay (up to 2008)Passenger-side front seat adjustment control unit with memory |
| 28 | 30 A | Driver seat adjustment comfort relay (up to 2008)Driver-side front seat adjustment control unit, with memory |
| 29 | 40 A | Left front reversible emergency tensioning retractor |
| 30 | 40 A | up to 2008:Valid for engine 156:Left fuel pump control unitRight fuel pump control unitas of 2009: Fuel system control unit (P0087, P0230, P0231, P0232) |
| 31 | 10 A | HS [SIH], seat ventilation and steering wheel heater control unit |
| 32 | 15 A | AIRmatic with ADS control unitRear axle level control system control unit |
| 33 | 25 A | Keyless Go control unit |
| 34 | 25 A | Left front door control unit |
| 35 | 30 A | Amplifier for sound systemSubwoofer amplifier (as of 2009) |
| 36 | 5 A | up to 2008: Emergency call system control unit |
| 37 | 5 A | Backup camera voltage supply module (as of 01.06.2006, except USA version and Japan version)Backup camera control unit (as of 01.06.2006, Japan version) |
| 38 | 10 A | Audio gateway control unit (up to 2008; Japan version)Digital TV tunerTV combination tuner (analog/digital) |
| 39 | 7,5 A | up to 2008:SDAR control unit (USA version)Tire pressure monitor (TPM) [RDK] control unitas of 2009:Tire pressure monitor (TPM) [RDK] control unitHigh definition tuner control unitDigital Audio Broadcasting control unitExternal navigation separating point (South Korea version) |
| 40 | — | up to 2008: Rear-end door closing control unit |
| 41 | 25 A | Overhead control panel control unit |
| 42 | 25 A | Overhead control panel control unit |
| 43 | 20 A | Up to 31.05.2006:Tailgate wiper motorLeft 3rd seat row socketRight 3rd seat row socketas of 2009:Valid for engine 272, 273, 276:Fuel system control unitValid for engine 642.872:Right fuel system control unit |
| 44 | 20 A | Up to 31.05.2006:Left 2nd seat row socketRight 2nd seat row socketas of 2009:USA version:Front interior socket115 V socket |
| 45 | 20 A | up to 2008:Cargo area connector boxup to 31.05.2006:Front interior socketas of 01.06.2006:Left 2nd seat row socketRight 2nd seat row socketas of 2009:Right 2nd seat row socketLuggage compartment socket |
| 46 | 15 A | Front cigar lighter with ashtray illumination |
| 47 | 10 A | as of 2009:Valid for retrofit:Left front illuminated door sill moldingRight front illuminated door sill molding |
| 48 | 5 A | as of 2009:Valid for engine 642.870:AdBlue®supply relay (P2047, P2048, P2049, P204B) |
| 49 | 30 A | Right antenna coil (up to 2008)Heated rear window |
| 50 | 10 A | up to 2008: Tailgate wiper motor |
| 51 | 5 A | Activated charcoal filter shutoff valve |
| 52 | 5 A | up to 30.6.09:Left front reversible emergency tensioning retractorRight front reversible emergency tensioning retractor |
| 53 | 5 A | AIRmatic with ADS control unitRear axle level control system control unitup to 2008:Valid for engine 156:Left fuel pump control unitRight fuel pump control unitas of 2009:Valid for engine 272, 273, 276:Fuel system control unitValid for engine 642.872:Right fuel system control unit (P0087, P0230, P0231, P0232) |
| 54 | 5 A | Front SAM control unitHeadlamp range adjustment control unit (bi-xenon headlamp unit) |
| 55 | 7,5 A | Rotary light switchInstrument cluster |
| 56 | 5 A | up to 2008: Data link connectoras of 2009:Valid for engine 642.870:AdBlue®control unit (P2047, P2048, P2049, P204B) |
| 57 | 20 A | up to 2008: Fuel pump with fuel gauge sensoras of 2009:Valid for engine 642.870:Fuel pump (P0087, P0230, P0231, P0232) |
| 58 | 7,5 A | Data link connectorCentral gateway control unit |
| 59 | 7,5 A | Driver NECK-PRO head restraint solenoidFront passenger NECK-PRO head restraint solenoid |
| 60 | 5 A | up to 2008:Glove compartment illumination with switchRear SAM control unitEngine compartment fuse and relay boxCTEL separation pointVICS+ETC voltage supply separation point (Japan version)Emergency call system control unitas of 2009:Glove box illumination with switchEngine compartment fuse and relay boxRear SAM control unit)Cell phone separation pointVICS+ETC power supply separating point (Japan version)Multicontour seat pneumatic pumpExternal navigation separating point (South Korea version)Emergency call system control unitRear bumper interior Blind Spot Monitoring electrical connector |
| 61 | 10 A | Restraint systems control unitRight front seat contacting strip |
| 62 | 30 A | Front passenger seat adjustment switchFront passenger lumbar support regulator control unit |
| 63 | 30 A | Driver seat adjustment switchDriver lumbar support regulator control unit |
| 66 | 30 A | as of 2009: Multicontour seat pneumatic pump |
| 67 | 25 A | Rear air conditioning blower motor |
| 68 | 25 A | up to 2008: Heated rear seatsas of 2009: Seat heater, seat ventilation and steering wheel heater control unit |
| 70 | 20 A | Trailer hitch socket (13-pin)Trailer hitch socket (7-pin) (USA version) |
| 71 | 30 A | USA version:Electric brake control separation point |
| 72 | 15 A | Trailer hitch socket (13-pin) |
| Fuse | Rating | Protected circuit |
|---|---|---|
| 10 | — | Booster blower electronic blower controller |
| 11 | 5 A | Instrument cluster |
| 12 | 15 A | Automatic air conditioning [KLA] control and operating unitComfort automatic air conditioning [KLA] control and operating unit |
| 13 | 5 A | Upper control panel control unitSteering column module |
| 14 | 7,5 A | CD changer (up to 2008)EZS control unit |
| 15 | 5 A | Electronic compassMedia interface control unit (as of 2009) |