1996-2003 Mercedes-Benz Vito (W638) fuse box diagram

This article covers the first-generation Mercedes-Benz Vito/V-Class (W638), manufactured from 1996 to 2003. It includes fuse box diagrams for each year from 1996 to 2003, details the locations of the fuse panels inside the vehicle, and explains the function of each fuse (fuse layout) and relay.

Cigar lighter (power outlet) fuse in the Mercedes-Benz Vito is the fuse #8 in the Fuse box under steering column.

Fuse box under steering column

Fused functionA
1Right side light and taillamp, trailer socket (term. 58R)
M111 and OM601 (relay K71)
2Right main beam
M111 and OM601 (connector between main wiring harness and taxi console II for right main beam)
3Left main beam, main beam indicator lamp
M111 and OM601 (connector between main wiring harness and taxi console II for left main beam)
4Signal horn, reverse lamp, convenience locking system, central locking system combination relay (term. 15)15
5Cruise control switch and control module, stop lamp, M104.900 (transmission fault indicator lamp)15
6Front and rear windshield washers20
7ABS/ABD and ABS/ETS safety lamp and information display, indicator lamps, windshield washer water level, recirculated air switch, tachograph (term. 15), diagnosis socket, filament bulb monitoring control module (term. 15), instrument cluster (term. 15), glove compartment illumination, M 104.900 (speedometer sensor)10
8Cigarette lighter, radio (term. 30), automatic antenna, trunk socket, sliding door and driver’s cabin interior lights20
9Clock, warning flashers, tachograph (hire cars only)10
10Registration plate illumination, day-driving light relay, headlamp cleaning system relay, passenger compartment illumination, radio (term. 58), all control switch illumination, tachograph (term. 58)
M111 and OM601 (main wiring harness/taxi console II connector for term. 58)
11Registration plate illumination, relay K71 (term. 58), trailer socket (term. 58L), left taillamp and side light10
12Right low beam, fog taillamp, day-driving light relay K6915
13Left low beam, day-driving light relay K6815
14Fog lamp15
15Radio (term. 15R)15
16Not used
17Not used
18Not used
Relay (underside of the fuse box)
LRelay turn signals
RWiper relay

Fuse box under the instrument panel

Fused functionA
1Right and left vent windows7,5
2Right front power window, front sliding roof30
3Left front power window, rear sliding roof30
4Central locking system actuators25
5Interior lighting, make-up mirror10
6Left and right interior sockets20
7D-network telephone, cellular phone7,5
8Anti-theft alarm system (ATA), ATA control module (term. 30)20
9Residual engine heat storage system (MRA), auxiliary heater relay10
10Anti-theft alarm system signal horn7,5
11Left flasher lamp (from ATA)7,5
12Right flasher lamp (from ATA)7,5
16Not used
17Not used
18Not used

Fuse Box under driver’s seat

Fused functionA
1Control module (term. 15) for ABS and pneumatic shock absorption, ASR, EBV7,5
2Immobilizer, engine control module (term. 15)
M104.900 (ignition coil, fuel pump relay)
M111 and OM601 (idle speed control, diesel control module)
2Wiper Multiple Relay – rear25
3Engine fan, immobiliser control7,5
4M104.900 (Oxygen sensor, secondary air pump relay, heater crank case illumination, multiport fuel injection/ignition system control module, tank venting, secondary intake manifold changeover and tank valve
M111 and OM601 (seat belt warning relay only for Japan)
4Charge Air Cooler – diesel Radiator
Fan – Petrol
5M 104.900 (6 injection valves, fuel pump)
M111 and OM601 (ignition coils, tank sensor module, 4 injection valves)
5ABS Valve Control25
6Automatic transmission, immobilizer and engine control module (term. 30)10
7Electronic level control warning lamps, relay K26 (D+)15
7Heating Operating Device30
8Airbag control module10
8Headlamp Cleaning Relay20
9Airbag indicator lamp
Auxiliary Heating Control
10Trailer socket (term. 30), refrigerator box25
11Rear windshield heater control module (term. 30), Anti Theft Alarm/Central locking check-back signal30
12ABS control module (term. 30)25
12Heater Control Unit10
13Pneumatic shock absorber compressor30
14Auxiliary heater operating equipment, auxiliary flasher module for trailer, pneumatic shock absorber control module, tachograph (term. 30)7,5
15Two-way radio unit7,5
16Air conditioning compressor relay, air conditioning system illumination switch and control module, residual engine heat storage system control module (term. 15), Taxi Meter15
17Automatic transmission control module (term. 15), position switch and illumination switch, kick-down air conditioning shut-off, M111 and OM601 (transmission fault indicator lamp)15
18Car telephone, cellular phone, anti-theft alarm system control module, mirror adjustment (left, right, tilt inwards)10
19Day-driving light relay K6910
19Crankcase Ventilation (diesel)
Terminal 15 (petrol engine)
20Day-driving light relay K6810
20Terminal 15 (petrol engine)15
21Relay K71 (term. 58)10
21Ignition Coil (petrol engine)15
22Front heater40
22Fuel Pump (petrol engine)20
23Right seat heater/position adjustment, rear windshield wiper relay (term. 15)25
23ECU – Engine Control Unit (diesel)7,5
24Left seat heater/position adjustment30
24ECU – Engine Control Unit (diesel)25
25Auxiliary heater and water pump relay, residual engine heat storage control module (term. 30)10
26Main beam washing system relay20
26Heater Booster Control Unit (diesel), Auxiliary Heating with Heater Booster25
27Auxiliary water heater control module (term. 30), engine radiator (turbo diesel)25
28D+ terminal Relay, Daytime driving lights K89 Relay15
29Daytime driving lights K69 Relay10
30Daytime driving lights K68 Relay10
31Terminal 58 Relay10
32Seat Heater – left seat, Seat Adjuster – left seat30
33Seat Heater – right seat Seat Adjuster – right seat25
34Water separator7,5
35Rear heater / A/C7,5
36Rear heater / A/C15
M1Engine fan (without air conditioning system)40
M1Engine fan (with air conditioning system)60
M2ABS control module50 60
M3M104.900 (secondary air pump) M111 and OM601 (not used)40

Relay Box under driver’s seat

K91Right turn signals relay
K90Left turn signals relay
K4Circuit 15 relay
K10Pneumatic shock absorber compressor
K19Headlamp Cleaning Relay
K39Fuel pump relay
K27Seat unloaded relay
K6ECU relay
K103Cooling system booster pump relay
K37Horn relay
K26Electronic level control warning lamps
K83Fog lamps relay
K29Heater relay (ZHE)
K70Circuit 15 relay
K1Starter relay
V10ATA 2
V8Heater diode (ZHE)
K71Terminal 58 Relay
K68Daytime driving lights K68 Relay
K69Daytime driving lights K69 Relay
K88Fog lamps relay 1 (DRL)
K89Fog lamps relay 2 (DRL)
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Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.

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