Fuses and Relay Mercedes W169

For Mercedes A-Class (W169)  1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 model year.

Mercedes A150, Mercedes A160, Mercedes A170, Mercedes A180, Mercedes A200

Cigarette lighter fuse (front) – Fuse box in passenger compartment – Fuse F44/25A

Cigarette lighter fuse (rear) – Fuse box in passenger compartment – Fuse F47/30A

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Fuse box in passenger compartment.

Relay box in passenger compartment.

 


Fuse box in passenger compartment.

The main fuse box is located in the front – passenger footwell in front of the seat.

To access:

  1. Remove the footmats.
  2. Turn retaining screw (2) anti-clockwise using a coin for example.
  3. Raise cover (1) and remove it.
  4. Remove the cover mat from the battery.

 

fuse box diagram (pre 2008).

Assignment of the fuses (pre 2008).

FusesAmpsCircuits Protected
140AESP control unit, ABS control unit
225AOverhead control panel control unit
325AFuel pump relay
Additional relay, fuel pump
415AHorn
57.5AHeating and air conditioning control unit
615AEIS control unit
Steering column lock control unit
77.5AEIS control unit
Instrument panel
825AHeated rear windscreen
95ABrake light switch
(10A also used)
107.5AReversing light switch
115ASpecial equipment
1210AData link connector
Parktronic system
1325AESP control unit, ABS control unit
1425ADoor control unit, front right
1525ADoor control unit, front left
165AMultifunction steering wheel
Mechatronic unit for the dual-clutch gearbox
Selector lever
Or
Not used
1740AMain relay
1840ABlower motor
1910ACVT control unit
207.5ACVT control unit
217.5ABrake light switch
ABS control unit
ESP control unit
227.5APower steering control unit
237.5AHeated nozzles
247.5AInstrument panel
2530AStarter relay
267.5ARestraint control unit (RCM)
275AYaw rate sensor
287.5ATelephone
Trailer control unit
2925ADoor control unit, rear right
3025ADoor control unit, rear left
3115ARadio
Radio and navigation unit
Navigation system
32Not used
335ACentral gateway control unit or not used
Special equipment
3425ATerminal 87 relay
3530APower supply control unit
365ASwitch, exterior lights
3725AEngine control unit
387.5ATerminal 87 M2e
3920ATerminal 87 M1e
407.5AGlovebox illumination switch
Vanity mirror(s) illumination
Special equipment
4115ARear wiper motor
42a7.5AOverhead control panel control unit
42b25ASunroof motor
4325AWiper motor
4425AFront cigarette lighter
Ashtray illumination
457.5ARestraint control unit (RCM)
Automatic seat occupied recognition
Automatic child seat recognition
4625ASound amplifier
Subwoofer
4730ARear cigarette lighter
Ashtray illumination
12V socket in luggage compartment
48Not used
497.5ASpare fuse/relay
507.5ACD changer
5125AUpper control panel module
Heated seats
527.5AATA control unit
Alarm horn
537.5ACTEL
Telephone
Voice control unit
547.5ACommunication network
CTEL
5525ANot used
5625ATerminal 15 relay
5720APassenger’s seat
5820ADriver’s seat
59Trailer control unit
Or
Trailer
6025ATrailer control unit
6115ATrailer connector socket
Or
Not used
6210ASpare fuse/relay
637.5AXenon light(s)
6480AWiring loom
6580APower steering control unit
6660APower supply control unit
6750ATerminal 15R relay 2
6860AAir-conditioning fan
or not used
6950ATerminal 15R relay 1
7060ATerminal 15 relay
71150APTC heater
7260ATerminal 30

 

 


Fuse box diagram (since 2009).

legend (since 2009).

FusesAmpsCircuits Protected
140AESP control unit, ABS control unit
225AOverhead control panel control unit
325AFuel pump relay
Additional relay, fuel pump
415AHorn
57.5AHeating and air conditioning control unit
615AEIS control unit
Steering column lock control unit
77.5AEIS control unit
Instrument panel
825AHeated rear windscreen
95ABrake light switch
(10A also used)
107.5AReversing light switch
115ASpecial equipment
1210AData link connector
1325AESP control unit, ABS control unit
1425ADoor control unit, front right
1525ADoor control unit, front left
165ASteering column control unit
1740AMain relay
1840ABlower motor
1910ACVT control unit
207.5ACVT control unit
217.5ABrake light switch
ABS control unit
ESP control unit
227.5APower steering control unit
2320AHeated fuel filter
Water in fuel sensor
or not used
247.5AInstrument panel
2530AStarter relay
267.5ARestraint control unit (RCM)
275AYaw rate sensor
2810ATelephone
Parktronic system
2925ADoor control unit, rear right
3025ADoor control unit, rear left
3115ARadio
Radio and navigation unit
Navigation system
32Not used
335ARain and light sensor
Special equipment
3425ATerminal 87 relay
3530APower supply control unit
365ASwitch, exterior lights
3725AEngine control unit
387.5ATerminal 87 M2e
3920ATerminal 87 M1e
407.5AGlovebox illumination switch
Vanity mirror(s) illumination
Special equipment
4115ARear wiper motor
42a7.5AOverhead control panel control unit
42b25AOverhead control panel control unit
4325AWiper motor
4425AFront cigarette lighter
Ashtray illumination
457.5ARestraint control unit (RCM)
Automatic seat occupied recognition
Automatic child seat recognition
4625ASpare fuse/relay
4730ARear cigarette lighter
Ashtray illumination
12V socket in luggage compartment
48Spare fuse/relay
497.5ASpare fuse/relay
507.5ACMultimedia control unit
TV tuner
Audio system
5125AUpper control panel module
527.5AATA control unit
Alarm horn
537.5ATelephone
5440ASound amplifier
5525ASpare fuse/relay
5640ATerminal 15 relay 2
5720APassenger’s seat
5820ADriver’s seat
5920ATrailer connector socket
6025ATrailer control unit
6115ATrailer connector socket
Or
Not used
6210AXenon light(s)
637.5AXenon light(s)
(10A also used)
6480AGlow plug system timer
6580APower steering control unit
6660APower supply control unit
6750ATerminal 15R relay 2
6860AAir-conditioning fan
or not used
6950ATerminal 15R relay 1
7060ATerminal 15 relay
71150APTC heater
7260ASpare fuse/relay

 

 


Relay box in passenger compartment.

relay box diagram (pre 2008).

legend.

130ASpecial vehicles
230ASpecial vehicles
330ASpecial vehicles
430ASpecial vehicles
R1Terminal 15R relay 2
R2Terminal 15R relay 1
R3Horn relay
R4Heated rear windscreen relay
R5High-/low-speed wiper relay
R6Wiper relay
R7Terminal 15 relay
R8Reversing light relay
R9Air pump relay
R10Fuel pump relay
Additional relay, fuel pump
R11Main relay
R12Starter relay
R13Terminal 87 F relay
R14Terminal 15 relay 2

 

 


Relay box diagram (since 2009).

legend.

R1Terminal 15R relay 2
R2Terminal 15R relay 1
R3Horn relay
R4Heated rear windscreen relay
R5High-/low-speed wiper relay
R6Wiper relay
R7Terminal 15 relay
R8Reversing light relay
R9Air pump relay
Or
Not used
R10Fuel pump relay
Additional relay, fuel pump
R11Main relay
R12Starter relay
R13Terminal 87 F relay
R14Terminal 15 relay 2