2004–2012 Mercedes A-Class (W169) Fuse Box Diagram

A-Class
W168 (1997–2004)
W169 (2004–2012)
W176 (2012–present)
1997-2004 Mercedes A-Class W168 fuse diagram
Mercedes W169 fuse box diagram (A-Class; 2004–2012)
Mercedes A-Class W176 fuse diagram (2012-present)

Fuse box in the front-passenger footwell

The fuse box is located in the front-passenger footwell in front of the seat.
2004–2012 Mercedes A-Class (W169) Fuse Box Diagram
  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.
2004–2012 Mercedes A-Class (W169) Fuse Box Diagram
  1. Fuse allocation chart
  2. Fuse box
2004–2012 Mercedes A-Class (W169) Fuse Box Diagram



No.
Fused function
A
1 Stop light switch 10
Valid for code (U62) Light and vision package:
   Stop light switch
5
2 Heated rear window 25
3 Instrument cluster
EIS [EZS] control unit
7.5
4 EIS [EZS] control unit
Electric steering lock control unit
15
5 Valid without code (580) Automatic air conditioning and without code (581) Comfort automatic air conditioning:
   HEAT control and operating unit
Valid for code (580) Automatic air conditioning:
   AAC [KLA] control and operating unit
Valid for code (581) comfort automatic air conditioning:
   Comfort AAC [KLA] control and operating unit
7.5
6 Left fanfare horn
Right fanfare horn
15
7 Fuel pump relay
25
Valid for model 169.090:
   DC/DC converter control unit
5
8 Overhead control panel control unit 25
9 ESP and BAS control unit
40
10 Blower regulator/interior wiring harness connector 40
11 Valid for engine 266:
   Circuit 87 relay, engine
30
Valid for engine 640:
   Circuit 87 relay, engine
40
12 Steering column module
Multifunction steering wheel
5
13 Left front door control unit
25
14 Right front door control unit
25
15 ESP and BAS control unit
25
16 Data link connector
PTS control unit
10
17 Rotary light switch
5
18 Valid for transmission 711, 716:
   Backup lamp switch
Valid for model 169.090:
   A/C compressor control unit
   BKGN Energy monitoring control unit
   Vacuum pump 1 control unit
   Vacuum pump 2 control unit
7.5
19 Micromechanical turn rate sensor AY pickup 5
20 Restraint systems control unit
7.5
21 Starter relay 30
22 Instrument cluster 7.5
23 Washer nozzle heating
7.5
Valid for engine 640 as of 1.9.08:
   Fuel filter condensation sensor with heating element
20
24 Electric power steering (ES) control unit
7.5
25 Stop light switch
ESp and BAS control unit
7.5
26 Valid for transmission 722:
   Electronic selector lever module control unit
7.5
27 Valid for transmission 722:
   CVT (continuously variable automatic transmission) control unit
10
28 Rotary light switch 5
29 SAM control unit
30
30 Circuit 87F relay
25
31 Central gateway control unit (vehicles up to 30.11.05)
Rotary light switch
Automatic light switch daylight sensor
Rain/light sensor
5
32 Valid for engine 266:
   ME-SFI [ME] control unit
Valid for model 169.090:
   Energy monitoring control unit
7.5
33 Radio
Radio and navigation unit
COMAND operating, display and control unit (Japan)
15
34 Left rear door control unit 25
35 Right rear door control unit 25
36 Cell phone separation point
Trailer control unit
7.5
Trailer control unit
PTS control unit
10
37 Restraint systems control unit
Front passenger seat occupied recognition sensor
Front passenger seat occupied and child seat recognition sensor
7.5
38 Front cigar lighter with ashtray illumination 25
39 Wiper motor 25
40 Overhead control panel control unit
7.5
Roof motor
25
41 Liftgate wiper motor
15
42 Glove compartment illumination with switch
Left and right vanity mirrors illumination
Footwell illumination switch (driving school package)
Pedal operation monitor switch (driving school package)
VICS+ETC voltage supply separation point (Japan)
7.5
43 Valid for engine 266:
   Terminal 87M1 e connector sleeve
15
Valid for engine 640:
   Terminal 87M1e connector sleeve
7.5
Valid for model 169.090:
   Vacuum pump 1 control unit
20
44 Valid for engine 266:
   Terminal 87M2e connector sleeve
15
Valid for engine 640:
   Terminal 87M2e connector sleeve
20
45 Valid for engine 640:
   CDI control unit
Valid for model 169.090:
   Vacuum pump 2 control unit
25
46 Telephone control unit, (Japan)
E-net compensator
Universal Portable CTeL Interface (UPCI [UHI]) control unit
7.5
Bass module speaker (Japan)
25
Amplifier for sound system
40
Valid for model 169.090:
   Charging control unit
5
47 Telephone control unit, (Japan)
Universal Portable CTEL Interface (UPCI [UHI]) control unit
Cell phone separation point
Voice control system (VCS [SBS]) control unit
Valid for model 169.090:
   Charger 1
7.5
48 ATA [EDW]/tow-away protection/interior protection control unit
Alarm signal horn with additional battery
Valid for model 169.090:
   Charger 2
7.5
49 Upper control panel control unit
Left front seat heated cushion
Left front backrest heated cushion
Right front seat cushion heater element
Right front backrest seat cushion heater element
25
50 CD changer
Media interface control unit
Digital TV tuner
Digital Audio Broadcasting control unit
VICS+ETC voltage supply separation point (Japan)
7.5
Valid for government vehicles:
   Roof light bar
   Circuit 30 connector sleeve
30
51 Valid for model 169.090:
   Cooling fan
   Low temperature coolant pump
10
52 VICS+ETC voltage supply separation point (Japan) (vehicles up to 31.5.06)
Valid for model 169.090:
   Electric drive control unit
5
Spare (vehicles as of 1.6.06)
7.5
Emergency call system control unit (USA) (vehicles up to 31.5.06)
7.5
53 Rear cigar lighter with ashtray illumination
Interior socket
30
54 Amplifier for sound system
Bass module speaker
25
Valid for model 169.090:
   Electric drive control unit
5
55 Left front lamp unit (Bi-xenon)
Right front lamp unit (Bi-xenon)
7.5
Left front lamp unit (Hi-xenon)
10
56 Spare 10
Right front lamp unit (Hi-xenon)
10
57 Trailer hitch socket (13-pin) (vehicles as of 1.6.05)
15
Audio gateway control unit (Japan) (vehicles up to 31.5.05)
25
SDAR control unit
Emergency call system control unit (USA)
7.5
58 Trailer control unit
Valid for model 169.090:
   Vehicle gateway control unit
25
59 Trailer control unit (vehicles up to 31.5.05)
Trailer hitch socket (13-pin) (vehicles as of 1.6.05)
20
Valid for model 169.090:
   Battery management system control unit 1
5
60 Driver seat connector block
20
61 Front passenger seat connector block 20
62 Circuit 15 relay (2) (SA: xenon, cell phone) 25
63
Spare (vehicles up to 31.5.05)
-
Audio gateway control unit (Japan) (vehicles as of 1.6.05)
Valid for government vehicles:
   Roof light bar
25
Emergency call system control unit (USA) (vehicles as of 1.6.05)
SDAR control unit
7.5
Valid for model 169.090:
   Battery management system control unit 2
5
64 Valid for engine 266:
   Air pump relay
40
Valid for engine 640:
   Engine wiring harness/engine compartment connector
   Glow time output stage
80
65 Electric power steering (ES) control unit
80
66 SAM control unit
60
67 Circuit 15R relay (2) (SE) 50
68 Valid for engine 266.920 and engine 266.940 with transmission 722:
   AAC with integrated control additional fan motor
50
Valid for engine 640.940, 640.941, 266.960, 266.980 and for engine 266.920, 266.940 with (Trailer hitch):
   AAC with integrated control additional fan motor
60
69 Circuit 15R relay (1)
50
70 Circuit 15 relay (1) 60
71 Valid for engine 640:
   PTC heater booster
150
72 Circuit 30 connector sleeve
Special vehicle multifunction control unit (SVMCU [MSS]) (Taxi)
60




2004–2012 Mercedes A-Class (W169) Fuse Box Diagram
No.
Fused function
A
80 Reserved for special-purpose vehicles 30
81 Reserved for special-purpose vehicles 30
82 Reserved for special-purpose vehicles 30
83 Reserved for special-purpose vehicles 30
Relay
A Circuit 15R relay (2) (SA)
B Circuit 15R relay (1)
C Fanfare horn relay
D Heated rear window relay
E Wiper stage 1/2 relay
F Wiper ON/OFF relay
G Circuit 15 relay (1)
H Backup relay
I Air pump relay
K Fuel pump relay
L Engine circuit 87 relay
M Starter relay
N Circuit 87F relay
O
Circuit 15 relay (2) (SA: xenon, cell phone)
Fuse Box Diagram Mercedes Benz A-Class: A150, A160, A170, A180, A200 (W169; 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012)