The Mercedes-Benz Vito W638 represents the 1st generation of the Mercedes Vito lineup with the designation 638 and was produced in 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 and 2003 with both petrol and diesel engines. During this time, the model has been restyled. In this publication you will find a description of the fuse and relay Mercedes Vito 638 with box diagrams and photo examples of their location. Select the fuse responsible for the cigarette lighter.
The execution of the boxes and the purpose of the elements in them may differ from those presented and depend on the year of manufacture and the level of electrical equipment.
Contents
Box under the steering wheel
The first fuse box is located directly under the steering and is covered by a protective cover.
Diagram
Assignment
| 1 | 10/15A Right marker lights, power circuit 58 relay K71, trailer connector X18 |
| 2 | 10/15A Right high beam, X146 connector |
| 3 | 10 / 15A Left high beam, high beam indicator, fog lamp relay 1 K88 (DRL system), connector X146 |
| 4 | 15A Convenience locking system control unit, horn relay, reverse lamp limit switch (manual transmission), automatic transmission selector position switch (sensor), Cruise control button (M111) |
| 5 | 15A Stop light sensor, Cruise control button, transmission failure indicator (M104.900) |
| 6 | 20A Wiper, rear wiper, alarm |
| 7 | 10 / 15A External lighting lamp failure control unit, heat exchanger (M611), tachograph, diagnostic connector, glove box illumination lamps, speed sensor (M104.900), cabin air recirculation switch, fluid level indicator in the washer reservoir, indicator lamp and ADS/ABD system display, ABS/ETS indicator |
| 8 | 20A Navigation system processor, cigarette lighter, interior lamp, sliding door lamp, automatic antenna, radio, trunk connector |
| 9 | 10/15A Direction indicators (alarms), instrument cluster, tachograph, clock |
| 10 | 7.5 / 15A Instrument cluster illumination, license plate lighting, daytime running lights, car radio or receiver, air conditioning control unit illumination lamps, automatic transmission selector illumination lamp, cigarette lighter lamp, license plate lamps, windshield wiper relay K19 winding unit -headlights, relay for switching on the front fog lamps K88 / K89 (only with DRL), tachograph, instrument cluster, backlight lamps for buttons and switches |
| 11 | 10/15A Left position lights, license plate lights, circuit 58 of relay K71, trailer connector |
| 12 | 15A Right low beam, rear fog lamp, DRL system relay, front and rear fog lamp switch illumination lamp |
| 13 | 15A Left low beam, DRL system relay |
| 14 | 15A Front and rear fog light switch, front fog light switch |
| 15 | 15A Car radio or radio, navigation processor, airbags |
| 16 | Not used |
| 17 | Not used |
| 18 | Not used |
For the cigarette lighter, fuse number 8 is responsible for 20A.
Two relays are installed on the side of the block. Left – Turn Signal Relay, Right – Wiper Relay.
More information about the power supply circuits of the windshield wipers (front and rear) in the Mercedes Vito 638, you can find here: “download wiring diagram“.
Box under the glove box
The second fuse box is located at the bottom of the panel, in the passenger’s footwell, under the glove compartment.
Diagram
Designation
| 1 | 7,5A Body side window vents |
| 2 | 30A Right door power window and front sliding sunroof, front sliding sunroof position switch, central power window switch (driver’s door), passenger’s door power window switch |
| 3 | 30A Left door power window and rear sliding sunroof, rear sliding sunroof position switch, driver’s door power window switch |
| 4 | 25A Central locking control unit, lock actuators |
| 5 | 10A Left sun visor lamp, right sun visor lamp, left side lamps, right side lamps, rear lamps |
| 6 | 20A Power outlets |
| 7 | 7.5A GSM mobile phone unit, mobile phone handset |
| 8 | 20A Anti-theft control unit, anti-theft alarm button |
| 9 | 10A Auxiliary water heater relay |
| 10 | 7.5A/10A Anti-theft Siren (ATA) |
| 11 | 7.5A Anti-theft system control unit, additional direction indicator control unit (left turn signal), special signals control unit (left turn signal), anti-theft system control unit (ATA 2), left turn signal lamp, left front turn signal lamp, left rear turn signal, left side turn signal relay, left turn indicator lamp |
| 12 | 7.5A Anti-theft system control unit, additional direction indicator control unit (right turn signal), special signal control unit A44 (right turn signal), anti-theft system control unit (ATA 2), right turn signal lamp, right front turn signal lamp, lamp right rear turn signal, right side turn signal relay, right turn indicator lamp |
| 13 | 7.5/15/20A Anti-theft system control unit (ATA 2) |
| 14 | 7.5A Anti-theft system control unit (ATA 2) |
| 15 | 7.5A Front ultrasonic sensor (ATA2), rear ultrasonic sensor (ATA2), anti-theft siren (ATA 2) H18 |
| 16 | Not used |
| 17 | Not used |
| 18 | Not used |
Box under the driver’s seat
On the side, under the driver’s seat, there are 2 separate boxes with fuses and relays.
Fuse box
Photo example
Diagram
Appointment
| 1 | 7.5/10A Electronic control unit ABS, ASR, EBV, air suspension control unit |
| 2 | 25A Rear window wiper control relay combination (M111, M611) / Vehicle authorization system (DAS) control unit (M104) |
| 3 | 7.5A Radiator fan (M111 until 01.02.00) / Control unit for the vehicle control authorization system (DAS) (M111, M611) |
| 4 | 25A Radiator fan (petrol engine), charge air cooler (diesel engine) |
| 5 | 25A ABS electro-hydraulic unit (from 01.02.00) |
| 6 | 10A ETC control module, Vehicle Authorization System (DAS) control module / ME-SFI control module (M104) |
| 7 | 30A Heater control unit |
| 8 | 20A Headlight wiper relay |
| 9 | 7.5A Additional heater control unit / ASR mode switch (M111, M611 from 01.02.00) |
| 10 | 25A Socket trailer, refrigerator |
| 11 | 30A Rear wiper combination relay, towing protection device (EDW/ZV), left side turn signal relay, right side turn signal relay |
| 12 | 10A Air conditioner control unit |
| 13 | 30A Air suspension compressor relay |
| 14 | 7.5A Air suspension control unit, tachograph, auxiliary light, stationary water heater control unit, turn signal auxiliary control unit |
| 15 | 7.5A Radio power supply |
| 16 | 15A Heating control unit, taxi console |
| 17 | 15A Automatic transmission control unit, automatic transmission gear selector, automatic transmission program selection button (M111 from 02/01/00 and M611), automatic transmission mode switch (M111 until 02/01/00), automatic transmission selector position switch (sensor) |
| 18 | 10A Anti-theft control unit, GSM mobile phone unit, handset unit, driver’s door mirror adjuster, passenger’s door mirror adjuster, heated exterior mirrors, mirror adjustment switch block |
| 19 | 15A Starter Interlock Relay (M111), Fuel Pump Relay (M111), Radiator Fan Motor (M111), Fluid Pump Relay (M611), Breather Heater (M611) |
| 20 | 15A Terminal 15 (petrol engines) |
| 21 | 15A Ignition coil supply (petrol engine) |
| 22 | 20A Fuel pump (petrol engine) |
| 23 | 7.5A Diesel engine control unit |
| 24 | 25A Diesel engine control unit |
| 25 | 10A Stationary water heater relay |
| 26 | 25A Heater control unit (diesel engine), non-volatile heater power supply (engine stopped operation) |
| 27 | 25A Additional heater control unit |
| 28 | 15A Relay supply circuit D+, fog lamp relay (DRL) |
| 29 | 10A DRL system relay (daytime running lights) |
| 30 | 10A DRL system relay (daytime running lights) |
| 31 | 10A Power circuit relay 58 |
| 32 | 30A Heated and seat adjustment circuit, left |
| 33 | 25A Right seat heating and adjustment circuit |
| 34 | 7.5A Water separator |
| 35 | 7.5A Rear air conditioner |
| 36 | 15A Rear air conditioner |
| M1 | 40A Engine cooling fan unit 250W |
| M1 | 60A Engine cooling fan assembly 500W |
| М2 | 50/60A ABS hydraulic unit pump |
| М3 | 40A Secondary air blower (petrol engine) |
Relay box
The photo
Diagram
Decoding
| К91 | Right side turn signal relay (central locking system with remote control) |
| К90 | Left Turn Signal Relay (Central locking system with remote control) |
| К4 | Power circuit relay 15 (steering column lock 2) |
| К10 | Air Suspension Compressor Relay |
| К19 | Relay for the headlight glass cleaning system |
| К39 | Fuel pump relay |
| К27 | Passenger presence recognition relay (Seat unloaded relay) |
| К6 | Engine control unit relay |
| К103 | Relay for booster pump of the engine cooling system |
| К37 | Horn relay (horn) |
| К26 | Power supply relay D (steering column lock 3) |
| К83 | Fog Lamp Relay |
| К29 | Stationary heater relay(ZHE) |
| К70 | Power circuit relay 15 (special equipment) |
| К1 | Starter lock relay |
| V9 | Anti-theft diode ATA 1 |
| V10 | Anti-theft diode ATA 2 |
| V8 | Diode booster pump stationary heater |
| K71 | Power relay 58 |
| K68 | DRL system relay |
| K69 | DRL system relay |
| K88 | Fog lamp relay 1 (with DRL system) |
| K89 | Fog lamp relay 2 (with DRL system) |
Preglow relay
Separately, under the hood, additional relays can be installed, such as a preheat relay.
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That’s all. And if you have something to add – write in the comments.
Thank you very much for this excellent site. I’m hoping that you can help me situate fuses on my 2001 Mercedes Vito (W638) 112CDI
The fuses are for the rear hinged windows:
ref: F28 left hand hinged window row B3 n°1 (5amp)
F29 right hand hinged winow row B3 n°2 (5amp)
thanks in advance,
David
Hello, thank you for this very helpful site, but there is something I cannot find. My daughter’s 108d lhd 1998 heater blower has packed up and I was trying to find the heater blower switch relay, surely it has one. There is no power at the blower resistor in the bulkhead above the pedals. Any suggestion would be appreciated, regards, Michael Hobson
Where is the wiper intermittent relay for w638 v230?