Fuse box diagram 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

Fuse box in passenger compartment.

fuse box diagram (pre 2008)
fuse box diagram (since 2009)

Relay box in passenger compartment.

relay box diagram (pre 2008)
relay box diagram (since 2009)

Fuse box in passenger compartment.

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

To access:

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

fuse box diagram (pre 2008).

Assignment of the fuses (pre 2008).

Fuses	Amps	Circuits Protected
1	40A	ESP control unit, ABS control unit
2	25A	Overhead control panel control unit
3	25A	Fuel pump relay Additional relay, fuel pump
4	15A	Horn
5	7.5A	Heating and air conditioning control unit
6	15A	EIS control unit Steering column lock control unit
7	7.5A	EIS control unit Instrument panel
8	25A	Heated rear windscreen
9	5A	Brake light switch (10A also used)
10	7.5A	Reversing light switch
11	5A	Special equipment
12	10A	Data link connector Parktronic system
13	25A	ESP control unit, ABS control unit
14	25A	Door control unit, front right
15	25A	Door control unit, front left
16	5A	Multifunction steering wheel Mechatronic unit for the dual-clutch gearbox Selector lever Or Not used
17	40A	Main relay
18	40A	Blower motor
19	10A	CVT control unit
20	7.5A	CVT control unit
21	7.5A	Brake light switch ABS control unit ESP control unit
22	7.5A	Power steering control unit
23	7.5A	Heated nozzles
24	7.5A	Instrument panel
25	30A	Starter relay
26	7.5A	Restraint control unit (RCM)
27	5A	Yaw rate sensor
28	7.5A	Telephone Trailer control unit
29	25A	Door control unit, rear right
30	25A	Door control unit, rear left
31	15A	Radio Radio and navigation unit Navigation system
32		Not used
33	5A	Central gateway control unit or not used Special equipment
34	25A	Terminal 87 relay
35	30A	Power supply control unit
36	5A	Switch, exterior lights
37	25A	Engine control unit
38	7.5A	Terminal 87 M2e
39	20A	Terminal 87 M1e
40	7.5A	Glovebox illumination switch Vanity mirror(s) illumination Special equipment
41	15A	Rear wiper motor
42a	7.5A	Overhead control panel control unit
42b	25A	Sunroof motor
43	25A	Wiper motor
44	25A	Front cigarette lighter Ashtray illumination
45	7.5A	Restraint control unit (RCM) Automatic seat occupied recognition Automatic child seat recognition
46	25A	Sound amplifier Subwoofer
47	30A	Rear cigarette lighter Ashtray illumination 12V socket in luggage compartment
48		Not used
49	7.5A	Spare fuse/relay
50	7.5A	CD changer
51	25A	Upper control panel module Heated seats
52	7.5A	ATA control unit Alarm horn
53	7.5A	CTEL Telephone Voice control unit
54	7.5A	Communication network CTEL
55	25A	Not used
56	25A	Terminal 15 relay
57	20A	Passenger’s seat
58	20A	Driver’s seat
59		Trailer control unit Or Trailer
60	25A	Trailer control unit
61	15A	Trailer connector socket Or Not used
62	10A	Spare fuse/relay
63	7.5A	Xenon light(s)
64	80A	Wiring loom
65	80A	Power steering control unit
66	60A	Power supply control unit
67	50A	Terminal 15R relay 2
68	60A	Air-conditioning fan or not used
69	50A	Terminal 15R relay 1
70	60A	Terminal 15 relay
71	150A	PTC heater
72	60A	Terminal 30

Fuse box diagram (since 2009).

legend (since 2009).

Fuses	Amps	Circuits Protected
1	40A	ESP control unit, ABS control unit
2	25A	Overhead control panel control unit
3	25A	Fuel pump relay Additional relay, fuel pump
4	15A	Horn
5	7.5A	Heating and air conditioning control unit
6	15A	EIS control unit Steering column lock control unit
7	7.5A	EIS control unit Instrument panel
8	25A	Heated rear windscreen
9	5A	Brake light switch (10A also used)
10	7.5A	Reversing light switch
11	5A	Special equipment
12	10A	Data link connector
13	25A	ESP control unit, ABS control unit
14	25A	Door control unit, front right
15	25A	Door control unit, front left
16	5A	Steering column control unit
17	40A	Main relay
18	40A	Blower motor
19	10A	CVT control unit
20	7.5A	CVT control unit
21	7.5A	Brake light switch ABS control unit ESP control unit
22	7.5A	Power steering control unit
23	20A	Heated fuel filter Water in fuel sensor or not used
24	7.5A	Instrument panel
25	30A	Starter relay
26	7.5A	Restraint control unit (RCM)
27	5A	Yaw rate sensor
28	10A	Telephone Parktronic system
29	25A	Door control unit, rear right
30	25A	Door control unit, rear left
31	15A	Radio Radio and navigation unit Navigation system
32		Not used
33	5A	Rain and light sensor Special equipment
34	25A	Terminal 87 relay
35	30A	Power supply control unit
36	5A	Switch, exterior lights
37	25A	Engine control unit
38	7.5A	Terminal 87 M2e
39	20A	Terminal 87 M1e
40	7.5A	Glovebox illumination switch Vanity mirror(s) illumination Special equipment
41	15A	Rear wiper motor
42a	7.5A	Overhead control panel control unit
42b	25A	Overhead control panel control unit
43	25A	Wiper motor
44	25A	Front cigarette lighter Ashtray illumination
45	7.5A	Restraint control unit (RCM) Automatic seat occupied recognition Automatic child seat recognition
46	25A	Spare fuse/relay
47	30A	Rear cigarette lighter Ashtray illumination 12V socket in luggage compartment
48		Spare fuse/relay
49	7.5A	Spare fuse/relay
50	7.5A	CMultimedia control unit TV tuner Audio system
51	25A	Upper control panel module
52	7.5A	ATA control unit Alarm horn
53	7.5A	Telephone
54	40A	Sound amplifier
55	25A	Spare fuse/relay
56	40A	Terminal 15 relay 2
57	20A	Passenger’s seat
58	20A	Driver’s seat
59	20A	Trailer connector socket
60	25A	Trailer control unit
61	15A	Trailer connector socket Or Not used
62	10A	Xenon light(s)
63	7.5A	Xenon light(s) (10A also used)
64	80A	Glow plug system timer
65	80A	Power steering control unit
66	60A	Power supply control unit
67	50A	Terminal 15R relay 2
68	60A	Air-conditioning fan or not used
69	50A	Terminal 15R relay 1
70	60A	Terminal 15 relay
71	150A	PTC heater
72	60A	Spare fuse/relay

Relay box in passenger compartment.

relay box diagram (pre 2008).

legend.

1	30A	Special vehicles
2	30A	Special vehicles
3	30A	Special vehicles
4	30A	Special vehicles
R1		Terminal 15R relay 2
R2		Terminal 15R relay 1
R3		Horn relay
R4		Heated rear windscreen relay
R5		High-/low-speed wiper relay
R6		Wiper relay
R7		Terminal 15 relay
R8		Reversing light relay
R9		Air pump relay
R10		Fuel pump relay Additional relay, fuel pump
R11		Main relay
R12		Starter relay
R13		Terminal 87 F relay
R14		Terminal 15 relay 2

Relay box diagram (since 2009).

legend.

R1	Terminal 15R relay 2
R2	Terminal 15R relay 1
R3	Horn relay
R4	Heated rear windscreen relay
R5	High-/low-speed wiper relay
R6	Wiper relay
R7	Terminal 15 relay
R8	Reversing light relay
R9	Air pump relay Or Not used
R10	Fuel pump relay Additional relay, fuel pump
R11	Main relay
R12	Starter relay
R13	Terminal 87 F relay
R14	Terminal 15 relay 2