Table of Contents
Mercedes-Benz W245 is a series of small compact B-class cars of the German company, introduced in 2005. In this material, we will analyze in detail the Mercedes fuse circuits in the W245 body 1st generation B-class (B160, B170, B180, B200) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 release.
Here you will find the locations and diagrams of the fuse blocks. Separately, we note the elements responsible for the cigarette lighter and fuel pump.
In the passenger compartment
Fuse box
Located in the front passenger's footwell. To access it, you need to remove the floor cladding.
Photo is an example.
| Diagram | ||
|---|---|---|
|
||
| No. | A | Description |
| 1 | 10 | 2005-2008: Brake light switch |
| 5 | 2008-2012 and 2005-2008 with code U58: Brake light switch | |
| 2 | 25 | Heated rear window |
| 3 | 7.5 | Instrument cluster |
| EZS module | ||
| 4 | 15 | EZS module |
| Electronic steering lock module | ||
| 5 | 7.5 | HAU module |
| KLA module (automatic air conditioning) | ||
| 6 | 15 | sound signal |
| 7 | 25 | Fuel block (fuel pump) with fuel level sensor |
| 8 | 25 | Overhead control panel |
| 9 | 40 | ESP and BAS control module |
| 10 | 40 | Fan motor |
| 11 | 30 | Engine 266: Relay el. terminal 87 circuits, motor |
| 40 | Engine 640: Relay el. terminal 87 circuits, motor | |
| 12 | 5 | Steering column electronics |
| Multifunction steering wheel | ||
| 13 | 25 | Front Left Door Control Module |
| 14 | 25 | Front Right Door Control Module |
| 15 | 25 | ESP and BAS control module |
| 16 | ten | Diagnostic connector |
| PTS control module (parktronic, 2005-2008) | ||
| 17 | 5 | Rotary switch for outdoor lighting |
| 18 | 7.5 | Gearbox 711, 716: Reverse light switch |
| 19 | 5 | Micromechanical yaw rate sensor AY |
| 20 | 7.5 | Passive safety system control module |
| 21 | 30 | Starter |
| 22 | 7.5 | Instrument cluster |
| 23 | 20 | Engine 640 (from 1.9.08): Fuel filter condensate sensor with heating element |
| 7.5 | 2005-2008: Heated washer nozzles | |
| 24 | 7.5 | Electric Power Steering (ES) Control Module |
| 25 | 7.5 | Brake light switch |
| ESP and BAS control module | ||
| 26 | 7.5 | KP 722: Selector lever electronics control unit |
| 27 | 10 | KP 722: Electric control module CVT (continuously variable automatic transmission) |
| 28 | 5 | Rotary switch for outdoor lighting |
| 29 | 30 | SAM control module |
| 30 | 25 | Relay el. circuit terminal 87F |
| 31 | 5 | Rotary switch for outdoor lighting |
| Central interface module (vehicles up to 30.11.05) | ||
| 32 | 7.5 | Engine 266.920: Module ME |
| 33 | 15 | Audio system |
| Audio module and navigation box | ||
| Control panel COMAND | ||
| 34 | 25 | Rear left door module |
| 35 | 25 | Rear right door module |
| 36 | 10 | 2008-2012 : PTS module (parking sensors) |
| 7.5 | 2005-2008: Trailer module | |
| Electrical connector mobile phone chain | ||
| 37 | 7.5 | Passive safety system control module |
| Front passenger seat passenger / child seat recognition sensor | ||
| Front passenger seat occupied recognition system | ||
| 38 | 25 | Front cigarette lighter fuse Mercedes 245 |
| 39 | 25 | Wiper motor |
| 40 | 25 | Sectional roof: Overhead control panel (sunroof motor) |
| 7.5 | Overhead control panel | |
| 41 | 15 | Tailgate wiper motor |
| 42 | 7.5 | Glove box lighting with microswitch |
| Vanity mirror lighting left and right | ||
| Pedal depression control sensor (package for driving school) | ||
| Footwell light switch (driving school bag) | ||
| Pluggable connection VICS + ETC power supply (Japan) | ||
| Emergency call system module (USA) | ||
| 43 | 7.5 | Engine 266: handpiece electr. circuit terminal 87M1e |
| 15 | Engine 640: handpiece electr. circuit terminal 87M1e | |
| Dual-fuel gas-petrol engine: electric tip circuit terminal 87M1e | ||
| 44 | 15 | Engine 266: handpiece electr. circuit terminal 87M2e |
| 20 | Engine 640: handpiece electr. circuit terminal 87M2e | |
| 45 | 25 | Engine 640: CDI System Module |
| 46 | 25 | Woofer (Japan, 2008-2012) |
| 40 | Speaker amplifier (2008-2012) | |
| 7.5 | UHI Module (Universal Mobile Phone Interface) (2005-2008) | |
| GSM 1800 network compensator (2005-2008) | ||
| Telephone control module (Japan, 2005-2008) | ||
| 47 | 7.5 | Electrical connector mobile phone chain |
| UHI Control Module (Universal Mobile Phone Interface) | ||
| Voice control system control module (2005-2008) | ||
| Telephone control module (Japan, 2005-2008) | ||
| 48 | 7.5 | EDW control unit / towing protection / interior protection systems |
| Alarm siren | ||
| 49 | 25 | Front Left Seat Cushion Heating Element (2005-2008) |
| Front Left Seat Backrest Heating Element (2005-2008) | ||
| Front Right Seat Cushion Heating Element (2005-2008) | ||
| Front Right Seat Backrest Heating Element (2005-2008) | ||
| 50 | 7.5 | Multimedia Interface Control Module (2008-2012) |
| Digital TV Tuner (2008-2012) | ||
| Digital sound broadcasting system module (2008-2012) | ||
| CD changer (2005-2008) | ||
| VICS + ETC power supply plug-in connection (Japan, 2005-2008) | ||
| 30 | Service vehicles: Roof beam | |
| Cable lug electr. terminal 30 circuits | ||
| 51 | 10 | Passenger Weight System (WSS) Control Module (Canada) |
| Control panel for special signaling system (service vehicles) | ||
| 52 | 7.5 | Emergency call system control module (vehicles up to 31.5.06) |
| 5 | VICS + ETC power supply connector (Japan, vehicles up to 31.5.06) | |
| 53 | 30 | Salon socket |
| Rear cigarette lighter fuse w245 | ||
| 54 | 15 | Service vehicles: 2-pin 12V socket |
| 25 | Speaker amplifier (2005-2008) | |
| Woofer (2005-2008) | ||
| 55 | 10 | Front left headlamp |
| 56 | 10 | Front right headlamp |
| 57 | 15 | AHV trailer coupling, 13-pin (2008-2012) |
| 20 | audio interface (Japan. 2005-2008) | |
| 7.5 | emergency call system | |
| SDAR | ||
| 58 | 25 | Trailer control unit |
| 59 | 20 | AHV trailer coupling, 13-pin |
| Trailer control unit (vehicles up to 31.5.05) | ||
| 60 | 20 | Driver's seat contact strip |
| 61 | 20 | Front passenger seat contact strip |
| 62 | 40 | 2008-2012: Relay el. terminal 15 (2) circuits (accessories: xenon headlights, mobile phone) |
| 25 | 2005-2008: Relay el. terminal 15 (2) circuits (accessories: xenon headlights, mobile phone) | |
| 63 | 7.5 | SDAR (Canada) |
| 25 | Roof beam (company cars) | |
| 64 | 40 | Engine 266: Air Pump Relay |
| 80 | Engine 640: End of glow plug time | |
| 65 | 80 | Electric power steering (ES) control unit |
| 66 | 60 | SAM control unit |
| 67 | 50 | Relay el. terminal 15R (2) circuits (accessory) |
| 68 | 50 | Standard equipment (2008-2012): Electric suction fan for engine and air conditioning with integrated regulator (2005-2008: (valid for engines 266.920 and 266.940 with gearbox 722)) |
| 60 | Special equipment (2008-2012): 2005-2008: (valid for engines 640.940, 640.941, 266.960, 266.980 and engines 266.920, 266.940 with code (550): Trailer coupling)) | |
| 69 | 50 | terminal 15R circuits (1) |
| 70 | 60 | terminal 15 circuits (1) |
| 71 | 150 | Engine 640: PTC Auxiliary Heater |
| 72 | 60 | 2005-2008: handpiece electr. terminal 30 circuits |
| Service vehicles: Fuse 7 (F7f7) and 10 (F7f10) | ||
| Taxi: Multifunctional Unit (MSS) | ||
Relay box
An additional mounting block K100 with relay modules is located under the dash.
For access:
1. Remove the lining under the glove compartment.
2. Dismantle the panel near the door.
3. Move the floor sheathing to the side.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | |
| A | Relay, circuit 15R (2) (SA) | |
| B | Circuit 15R relay (1) | |
| C | Signal | |
| D | Heated rear window | |
| E | 1/2 wiper speed | |
| F | Turning on / off the wiper | |
| G | Circuit 15 (1) | |
| H | Reserve | |
| I | Motor 266: air pump | |
| K | Fuel pump relay (gasoline) | |
| L | Engine circuit 87 relay | |
| M | Starter | |
| N | Relay, circuit 87F | |
| O | Relay, circuit 15 (2) (SA: xenon, cell phone) | |
| No. | Appointment | A |
| 80- 81 |
Special equipment | 30 |
General arrangement
Location of the electrical equipment.
|
|
| No. | Component |
| 1 | ABS module |
| 2 | Heater / A / C blower motor resistor |
| 3 | Air conditioning / heater control module - behind the air conditioning / heater control panel |
| 4 | Air Conditioning / Heating Humidity Sensor - on the resonator of the intake system |
| 5 | Roof antenna |
| 6 | |
| 7 | shock sensor, driver's side |
| 8 | shock sensor, passenger side |
| 9 | Anti-theft control unit |
| 10 | Anti-theft siren - on the resonator of the intake system |
| 11 | Sun sensor |
| 12 | Audio Amplifier - Behind Right Rear Side Trim Panel |
| 13 | Additional heater control module - in the air conditioner control panel |
| 14 | Battery - legroom |
| 15 | CAN data bus, gateway control unit, audio system - behind the rear right side trim panel |
| 16 | CAN data bus, gateway control unit - behind the dashboard |
| 17 | Compass control unit - behind the instrument cluster |
| 18 | Diagnostic connector (DLC) |
| 19 | Driver's door electrical control unit - in the door |
| 20 | Control unit for electrical equipment of the left rear door-in the door |
| 21 | Control unit for electrical equipment of the right rear door - in the door |
| 22 | Passenger door-in-door electrical control unit |
| 23 | ECU engine-Diesel |
| 24 | ECU - gasoline |
| 25 | Relay box, instrument panel |
| 26 | Fuse box, legroom |
| 27 | Xenon headlamp control unit, left - under the left headlight |
| 28 | Xenon headlamp control unit, right - under the right headlight |
| 29 | Headlight range control motor, left |
| 30 | Headlight range control motor, right |
| 31 | Horn |
| 32 | Ignition switch control module |
| 33 | ECU immobilizer - in the ignition switch control unit |
| 34 | Immobilizer ring antenna - ignition lock |
| 35 | ECU of the gas cylinder power supply system |
| 36 | Multifunctional control unit - Functions: Low brake fluid level sensor, central locking, coolant level sensor, exterior lamps, interior lamps, hazard warning lights, direction indicators, heated rear window, horn, reversing light switch, tailgate opener , windshield wiper / washer, rear window wiper / washer |
| 37 | Multimedia control unit |
| 38 | Multi-function switch control unit |
| 39 | Navigation control unit - in the audio system unit |
| 40 | Outside air temperature sensor - behind the bumper |
| 41 | Parktronic control module - behind the right rear side trim panel |
| 42 | Power steering control module - on the steering rack |
| 43 | Rain Sensor - Windshield Upper Center |
| 44 | Steering column electronics control unit - under the steering wheel |
| 45 | Steering column lock control unit - on the steering column |
| 46 | Subwoofer - Behind Left Rear Side Trim Panel |
| 47 | SRS ECU - under the center console |
| 48 | Telephone interface control unit - under the seat |
| 49 | Trailer electrical control unit - with rear side trim panel |
| 50 | Gearbox ECU - in gearbox |
| 51 | Gear Shift Control Unit - Selector |
Very helpful