Mercedes Vaneo (414) fuse and relay

Mercedes-Benz Vaneo (W414) represents the family of minivans manufactured by Mercedes-Benz in 2002, 2003, 2004, 2005, 2006 with 1.6 1.9 petrol and 1.7 liter diesel engines. In this article you will find a description of the Mercedes Vaneo fuses and relays with boxes diagrams, photographs and their locations. Note the cigarette lighter fuse.

Mercedes Vaneo

The purpose of the fuses and relays may differ from that shown and depends on the year of manufacture and the level of equipment of the vehicle.

Passenger compartment

Fuse and relay box

The main fuse and relay box is located under the front passenger’s feet, behind a protective cover, next to the battery.

Photo example



Diagram Mercedes Veano


120A Cooling fan control module*
Cooling Fan Relay
The engine control unit
Main relay
225A Engine control unit
Fuel pump relay
3Heater / air conditioner control unit
25A Heater motor
47.5A ESP
brake pedal switch
510A Automatic transmission control unit*
Cruise control switch*
Automatic clutch*
615A Horn
710A Stop lamps
810A Diagnostic connector
Heater/air conditioner control unit
930A Cooling fan control module*
40A Cooling fan relay
1015A Hatch
Rear wiper
1115A Interior lighting*
Radio / navigation*
Hands-free device*
light switch
1220A Cigarette lighter
Glove box lighting
1330A Power windows (left side)
7.5A Power windows (left side) (auto open/close)*
1430A Power windows (right side)
7.5A Power windows (right side) (auto open/close)*
157.5A Passenger/Child Seat Recognition Sensor
Airbag control unit
1630A Wiper
1710A Washer pump
Central locking (diagnostics)
Instrument cluster (front wiper, rear wiper, washer, heated rear window, heated mirrors, airbag indicator)
1825A 12V socket
1915A Trailer connector*
Alarm control unit (taxi)*
207.5A Drawbar*
7.5A Alarm control unit (taxi)*
2115A Drawbar*
2210A Alarm control unit*
Alarm siren*
2325A Seat heating
2530A Power windows (right side) (auto open/close)*
2630A Power windows (left side) (auto open/close)*
275A Engine preheat timer*
Radio receiver for engine heating*
Threshold illumination*
2810A Instrument cluster (direction indicators, wiper and washer, heated rear window)
Taxi meter*
Checker taxi*
2925A Central lock
307.5A Immobilizer (DAS)
Instrument cluster (turn signal indicator)
Steering wheel sensor
3125A Heated rear window, heated mirrors
3215A Phone*
Hands-free device*
Interior lighting*
Control panel with interior lamps*
Alarm unit (taxi)*
3320A Radio / navigation*
Hands-free system*
Telephone / radio (taxi)*
3425A Fuel pump (gasoline engines)
3525A ESP
3640A Lamp block
3710A Heated mirrors
3830A Starter relay (diesel engines)
7.5A Engine control unit (petrol engines)
397.5A Immobilizer (DAS)
Instrument cluster (turn signal indicator)
407.5A Diagnostic connector
Steering wheel sensor
Power mirrors
417.5A Heater motor*
PTC (diesel engines)
Heater/air conditioner control unit
Dew sensor (air conditioner)*
Heated washer nozzles
Interior temperature sensor (air conditioner)*
Electric folding mirrors*
427.5A Lamp block
Reversing lamps (manual transmission)
Gear selector*
437.5A Reversing lamps (automatic transmission)
Taxi meter*
447.5A Engine preheat timer*
457.5A Optional electric window*
K1/6Relay terminal 87 (A 002 542 25 19)
K1/5Fuel pump relay (A 002 542 25 19)
K13/1Relay terminal 15 (A 002 542 13 19)
K27Heated rear window relay (A 002 542 13 19)

Fuses number 12 and 18 are responsible for the cigarette lighter.

Power fuse block

This box is made in the form of high power fuse links and is located near the battery or placed under the hood.

Photo 1


Diagram 1


46150A Terminal 30
Fuses: f4, f5, f6 via relay K1/5
Fuses: f1 f2 via relay K1/6, K1/7
Fuses: f19, f20, f21
Fuses: PTC (diesel engines)
4760A Preheating (diesel engines)
40A Injector (petrol engines)
4860A Power steering pump
4940A Return pump
5050A Ignition switch
5130A Additional heater

Fuse box

Another fuse box is installed on the back of the instrument panel, also closed with a protective cover.


Photo 1


  1. 7,5A – Left low beam headlight
  2. 7,5A – Right low beam headlight
  3. 15A – High beam, high beam indicator
  4. 7,5A – Left parking light, Rear left marker
  5. 15A – Right parking light, Right tail light, License plate light, Instrument panel, terminal 58
  6. 15A – Fog lights, Left rear fog light

Engine compartment

Under the hood, on the right side of the engine compartment, there is a box with a relay.


Relay box diagram


K20/1High pressure valve (A 002 542 13 19)
K9/3Cooling fan relay (A 002 542 13 19)
K38/3Starter relay (A 002 542 23 19)
K46Alarm Siren Relay (A 002 542 14 19)
K39Horn relay (A 002 542 11 19)
K26/2Washer pump relay (A 002 542 19 19)
K17Injector relay (A 002 542 13 19)


If you have any questions – ask them in the comments.

Comments 2

  • Hello, The alarm on my 2004 Vaneo (recently purchased second hand) does not work. I have checked that the 10 Amp fuse is in place and in good condition but have searched in vain for the relay box in the engine compartment to check the relay K46. There is no such relay box in the position shown. I would appreciate any pointers to the location of said relay box.

  • Hi, i have a similar issue as Mark Lyons, 2005 Vaneo W414, 1.7CDI manual transmission, I too have the issue with the alarm and horn does not work. I have checked that the fuses but have searched in vain for the relay box in the engine compartment to check the relays K39 & K46. There is no such relay box that I can see. Any help / info would be greatly appreciated.

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