2005-2011 Mercedes-Benz B-Class (W245)
Location and description of fuses and relay Mercedes-Benz B-Class with engine 1.5L - M266 (B150, B160), 1.7L - M266 (B170, B180), 2.0L - M266 (B170 NGT, B180 NGT, B200, B200 Turbo) and diesel 2.0L - OM640 (B180 CDI, B200 CDI) (W245; 2005, 2006, 2007, 2008, 2009, 2010, 2011)
Fuse box in the front-passenger footwell
The fuse box is located in the front-passenger footwell in front of the seat.
- Remove the footmats.
- Turn retaining screw (2) anti-clockwise using a coin for example.
- Raise cover (1) and remove it.
- Remove the cover mat from the battery.
- Fuse allocation chart
- Fuse box
| No. | A | Description |
|---|---|---|
| 1 | 10 | 2006-2008: Stop light switch |
| 5 | Light and vision package (2006-2008): Stop light switch 2009-2011: Stop light switch | |
| 2 | 25 | Heated rear window |
| 3 | 7.5 | Instrument cluster EIS [EZS] control unit |
| 4 | 15 | EIS [EZS] control unit Electric steering lock control unit |
| 5 | 7.5 | Automatic air conditioning and Comfort automatic air conditioning: HEAT control and operating unit Automatic air conditioning: AAC [KLA] control and operating unit Comfort automatic air conditioning: Comfort AAC [KLA] control and operating unit |
| 6 | 15 | Left fanfare horn Right fanfare horn |
| 7 | 25 | Fuel pump relay |
| 8 | 25 | Overhead control panel control unit |
| 9 | 40 | ESP and BAS control unit |
| 10 | 40 | Blower regulator/interior wiring harness connector |
| 11 | 30 | M266: Circuit 87 relay, engine |
| 40 | OM640: Circuit 87 relay, engine | |
| 12 | 5 | Steering column module Multifunction steering wheel (2006-2008) |
| 13 | 25 | Left front door control unit |
| 14 | 25 | Right front door control unit |
| 15 | 25 | ESP and BAS control unit |
| 16 | 10 | Data link connector Parktronic system (PTS) control unit (2006-2008) |
| 17 | 5 | Rotary light switch |
| 18 | 7.5 | Valid for transmission 711, 716: Backup lamp switch |
| 19 | 5 | Micromechanical turn rate sensor AY pickup |
| 20 | 7.5 | Restraint systems control unit |
| 21 | 30 | Starter relay |
| 22 | 7.5 | Instrument cluster |
| 23 | 7.5 | 2006-2008: Washer nozzle heating |
| 20 | OM640 (01.09.2008→): Fuel filter condensation sensor with heating element | |
| 24 | 7.5 | Electric power steering (ES) control unit |
| 25 | 7.5 | Stop light switch ESp and BAS control unit |
| 26 | 7.5 | Valid for transmission 722: Electronic selector lever module control unit |
| 27 | 10 | Valid for transmission 722: CVT (continuously variable automatic transmission) control unit |
| 28 | 5 | Rotary light switch |
| 29 | 30 | SAM control unit |
| 30 | 25 | Circuit 87F relay |
| 31 | 5 | 2006-2008: Central gateway control unit (→30.11.2005) Rotary light switch 2009-2011: Automatic light switch daylight sensor Rain/light sensor |
| 32 | 7.5 | M266: ME-SFI [ME] control unit |
| 33 | 15 | Radio Radio and navigation unit COMAND operating, display and control unit (Japan) |
| 34 | 25 | Left rear door control unit |
| 35 | 25 | Right rear door control unit |
| 36 | 7.5 | 2006-2008: Cell phone separation point Trailer control unit |
| 10 | 2009-2011: Trailer control unit PTS control unit | |
| 37 | 7.5 | Restraint systems control unit Front passenger seat occupied recognition sensor Front passenger seat occupied and child seat recognition sensor |
| 38 | 25 | Front cigar lighter with ashtray illumination |
| 39 | 25 | Wiper motor |
| 40 | 7.5 | Louvered sunroof: Overhead control panel control unit |
| 25 | Lamella roof: Overhead control panel control unit | |
| 41 | 15 | Liftgate wiper motor |
| 42 | 7.5 | Glove compartment illumination with switch Left and right vanity mirrors illumination Footwell illumination switch (driving school package) Pedal operation monitor switch (driving school package) VICS+ETC voltage supply separation point (Japan) |
| 43 | 15 | M266: Terminal 87M1 e connector sleeve Bivalent natural gas drive (2009-2011): Terminal 87M1e connector sleeve |
| 7.5 | OM640: Terminal 87M1e connector sleeve | |
| 44 | 15 | M266: Terminal 87M2e connector sleeve |
| 20 | OM640: Terminal 87M2e connector sleeve | |
| 45 | 25 | OM640: CDI control unit |
| 46 | 7.5 | 2006-2008: Telephone control unit, (Japan) E-net compensator Universal Portable CTeL Interface (UPCI [UHI]) control unit |
| 25 | 2009-2011: Bass module speaker (Japan) | |
| 40 | 2009-2011: Amplifier for sound system | |
| 47 | 7.5 | Telephone control unit, (Japan) Universal Portable CTEL Interface (UPCI [UHI]) control unit Cell phone separation point Voice control system (VCS [SBS]) control unit |
| 48 | 7.5 | ATA [EDW]/tow-away protection/interior protection control unit Alarm signal horn with additional battery |
| 49 | 25 | Upper control panel control unit Left front seat heated cushion (2006-2008) Left front backrest heated cushion (2006-2008) Right front seat cushion heater element (2006-2008) Right front backrest seat cushion heater element (2006-2008) |
| 50 | 7.5 | 2006-2008: CD changer VICS+ETC voltage supply separation point (Japan) 2009-2011: Media interface control unit Digital TV tuner Digital Audio Broadcasting control unit |
| 30 | Valid for government vehicles (2009-2011): Roof light bar Circuit 30 connector sleeve | |
| 51 | 10 | Canada (2009-2011): Weight Sensing System (WSS) control unit Valid for government vehicles (2009-2011): Special signal system control panel |
| 52 | 5 | VICS+ETC voltage supply separation point (Japan (→31.05.2006)) |
| 7.5 | Spare (01.06.2006→) | |
| 7.5 | Emergency call system control unit (USA (→31.05.2006)) | |
| 53 | 30 | Rear cigar lighter with ashtray illumination Interior socket |
| 54 | 25 | Amplifier for sound system Bass module speaker |
| 15 | Valid for government vehicles (2009-2011): 2-pin 12V socket | |
| 55 | 7.5 | Left front lamp unit (Bi-xenon) Right front lamp unit (Bi-xenon) |
| 10 | Left front lamp unit (Hi-xenon) | |
| 56 | 10 | Spare |
| 10 | Right front lamp unit (Hi-xenon) | |
| 57 | 15 | 2009-2011: Trailer hitch socket (13-pin) |
| 25 | 2006-2008: Audio gateway control unit (Japan) | |
| 7.5 | 2006-2008: SDAR control unit Emergency call system control unit (USA) | |
| 58 | 25 | Trailer control unit |
| 59 | 20 | Trailer control unit (→31.05.2005) Trailer hitch socket (13-pin) (01.06.2005→) |
| 60 | 20 | Driver seat connector block |
| 61 | 20 | Front passenger seat connector block |
| 62 | 25 | Circuit 15 relay (2) (SA: xenon, cell phone) |
| 63 | - | Spare (→31.5.05) |
| 25 | Valid for government vehicles (2009-2011): Roof light bar | |
| 7.5 | Emergency call system control unit (USA) (01.06.2005→) SDAR control unit (01.06.2005→) | |
| 64 | 40 | M266: Air pump relay |
| 80 | OM640: Engine wiring harness/engine compartment connector (2006-2008) Glow time output stage (2009-2011) | |
| 65 | 80 | Electric power steering (ES) control unit |
| 66 | 60 | SAM control unit |
| 67 | 50 | Circuit 15R relay (2) (SE) |
| 68 | 50 | M266.920 and M266.940 with transmission 722: AAC with integrated control additional fan motor |
| 60 | OM640.940, OM640.941, M266.960, M266.980 and M266.920, M266.940 with Trailer Hitch: AAC with integrated control additional fan motor | |
| 69 | 50 | Circuit 15R relay (1) |
| 70 | 60 | Circuit 15 relay (1) |
| 71 | 150 | OM640: PTC heater booster |
| 72 | 60 | 2006-2008: Circuit 30 connector sleeve 2009-2011: Special vehicle multifunction control unit (SVMCU [MSS]) (Taxi) Valid for government vehicles: Fuse 7 Fuse 10 |
Gasoline:
- 1.5L - M266 (B150, B160, B160 BlueEFFICIENCY)
- 1.7L - M266 (B170, B180, B180 BlueEFFICIENCY)
- 2.0L - M266 (B170 NGT, B180 NGT BlueEFFICIENCY, B200, B200 Turbo)
Diesel:
- 2.0L - OM640 (B180 CDI, B200 CDI)
| No. | A | Description |
|---|---|---|
| 80 | 30 | Special vehicle multifunction control unit |
| 81 | 30 | Special vehicle multifunction control unit |
| 82 | 30 | Special vehicle multifunction control unit |
| 83 | 30 | Special vehicle multifunction control unit |
| Relay | ||
| A | Circuit 15R (2) (SA) | |
| B | Circuit 15R (1) | |
| C | Fanfare horn | |
| D | Heated rear window | |
| E | Wiper stage 1/2 | |
| F | Wiper ON/OFF | |
| G | Circuit 15 (1) | |
| H | Backup | |
| I | M266: Air pump | |
| K | Fuel pump | |
| L | Engine circuit 87 | |
| M | Starter | |
| N | Circuit 87F | |
| O | Circuit 15 (2) (SA: xenon, cell phone) | |
