FBD.wiki

2000-2007 Mercedes C-Class (W203)

11.03.2017 (US:03.11.17), Category: Mercedes / C-Class

Luggage compartment fuse box

2000-2007 Mercedes C-Class (W203) Fuse Block Location
  1. Trim panel
  2. Cover of auxiliary fuse box
  3. Special fuse extractor
2000-2007 Mercedes C-Class (W203) Fuse Block Diagram

Fuses Specifications
No. A Description
1 30 Front passenger front seat adjustment control unit with memory
Front passenger partially-electric seat adjustment switch
2 30 Driver front seat adjustment control unit with memory
Driver partially-electric seat adjustment switch
3 7.5 Dome lamp
Right luggage compartment lamp
Left luggage compartment lamp
STH radio remote control receiver
20 TV tuner (→29.02.2004)
TV tuner (MOST) (01.04.2004→)
4 20 Fuel pump relay 
5 20
M112.961 (→31.03.2004): Charge air cooler circulation pump
20 except M112.961: Backup relay 2
6 25 Spare
7 7.5 Backup relay 1
8 7.5 Amplifier module, window antenna
Alarm signal horn (H3) ATA [EDW] inclination sensor
9 25 Overhead control panel control unit
10 40 Heated rear window
11 20 Spare
12 15 Interior socket / Power outlet
13 5 Multicontour seat pneumatic pump
Voice control system control unit
Rear dome lamp
Rear dome lamp PTS warning indicator
PTS control unit
VICS+ETC voltage supply separation point (Japan)
14 15 Tailgate wiper motor
15 10 Fuel filler cap polarity change relay 1
Fuel filler cap polarity change relay 2
16 20 Voice control system control unit
17 20 Trailer recognition control unit
18 20 Trailer hitch socket (13-pin)
19 20 Multicontour seat pneumatic pump
20 15 Rear window roller blind relay
15 W203.2/7 (USA): Power outlet
Relay
A Fuel pump 
B Relay 2, terminal 15R
C Reserve relay 2
D Reserve relay 1
E Rear window defroster
F Relay 1, terminal 15R
G Filler cap, polarity reverser 1
H Filler cap, polarity reverser 2

Gasoline:

  • C180 - 2.0L (M111 E20 EVO) 
  • C180 Kompressor - 1.8L (M271 E18 ML LR) 
  • C200 Kompressor - 2.0L (M111 E20 ML EVO) or 1.8L (M271 E18 ML)
  • C200 CGI - 1.8L (M271 18 DE ML)
  • C230 Kompressor - 1.8L (M271 E18 ML)
  • C230 - 2.5L (M272 E25)
  • C240 - 2.6L (M112 E26)
  • C280 - 3.0L (M272 E30)
  • C320 - 3.2L (M112 E32)
  • C350 - 3.5L (M272 E35)
  • C32 AMG - 3.2L (M112 E32 ML)
  • C55 AMG - 5.5L (M113 E55)

Diesel:

  • C200 CDI - 2.1 / 2.2L (OM611, OM646)
  • C220 CDI - 2.1 / 2.2L (OM 611, OM 646) 
  • C270 CDI - 2.7L (OM612)
  • C30 CDI AMG - 3.0L (OM612)
  • C320 CDI - 3.0L (OM642)

The instrument panel fuse panel

2000-2007 Mercedes C-Class (W203) Fuse Panel Location
  1. Pull cover (1) open with a screw driver or similar tool.
  2. Remove cover rearward.
2000-2007 Mercedes C-Class (W203) Fuse Panel Diagram

Fuses Specifications
No. A Description
21 30 Left front door control unit
22 30 Right front door control unit
23 15
→30.11.2004: Central gateway control unit
24 7.5 CD player with changer (in glove compartment)
25 30 Upper control panel control unit
26 25 Sound amplifier
27 30 Driver-side front seat adjustment control unit, with memory
Special vehicle multifunction control unit (SVMCU [MSS])
28 30 Spare
29 30 Driver-side front seat adjustment control unit, with memory
Driver-side front seat adjustment control unit, with memory
Special vehicle multifunction control unit
30 40 Heating systems recirculation unit
31 20 EIS [EZS] control unit 
Electric steering lock control unit
32 30 Left rear door control unit
33 30 Right rear door control unit
34 7.5 Cell phone separation point
→31.5.2001:
   Telephone and TELE AID transmitter/receiver, D2B
   Telephone transmitter and receiver unit, D2B
   Telephone interface
   E-net compensator
→31.5.2001 (Japan version): E-call control unit
15
→31.03.2004: Front passenger front seat adjustment control unit with memory
01.04.2004→: Passenger-side front seat adjustment control unit with memory
Taxi, Police: Special vehicle multifunction control unit
30
01.04.2004: Front passenger front seat adjustment control unit with memory
01.04.2004→ (Taxi): Special vehicle multifunction control unit
35 30
→31.03.2004: STH heater unit
20
01.04.2004→: STH heater unit
36 30
→31.03.2004 (Police): Interior socket
15
OM612.990 (→29.02.2004): Charge air cooler circulation pump
01.04.2004→ (Japan): Audio gateway control unit
7.5 Universal Portable CTEL Interface (UPCI [UHI]) control unit
37 25 Charge air cooler circulation pump
→29.02.2004: Brake booster vacuum pump control unit
38 30
→29.02.2004: Passenger-side front seat adjustment control unit with memory
01.04.2004→ (Police): Special vehicle multifunction control unit (SVMCU [MSS])
39 30 Spare
40 7.5 Passenger-side front seat adjustment control unit with memory
Universal Portable CTEL Interface (UPCI [UHI]) control unit
Cell phone separation point
Telephone interface
E-net compensator
01.06.2001→ (standard telephone): Telephone transmitter and receiver unit, D2B
01.06.2001→ (TELE AID): Telephone and TELE AID transmitter/receiver, D2B
01.06.2001→ (Canada): Via the trunk lid/FFS [RBA] separation point the trunk lid emergency release switch and the rear SAM control unit with fuse and relay module
USA: Via the trunk lid/FFS [RBA] separation point the trunk lid emergency release switch and the rear SAM control unit with fuse and relay module
01.04.2004→ (Japan): E-call control unit
30
→31.05.2001: Special vehicle multifunction control unit
41 7.5 HEAT control and operating unit
→31.05.2001:
   AAC [KLA] control and operating unit
   Comfort AAC [kLa] control and operating unit
15
01.06.2001→:
   AAC [KLA] control and operating unit
   Comfort AAC [KLA] control and operating unit
42 7.5 Instrument cluster

Engine compartment fuse box

2000-2007 Mercedes C-Class (W203) Fuses Box Location

The fuse box is located in the engine compartment on the left hand side.

  1. Twist screws (1) 90° counter clockwise.
  2. Pull up cover (2)
  3. Slide out retainer (3) and remove cover by pulling towards front.
  4. Install cover (2) in reverse order.
    2000-2007 Mercedes C-Class (W203) Fuses Block Location
  5. Release clamps (5)
  6. Remove cover (4)
2000-2007 Mercedes C-Class (W203) Fuses Box Diagram

Fuses Specifications
No. A Description
43a 15 Fanfare horn relay
43b 15 Fanfare horn relay
44 5 Telephone and TELE AID transmitter/ receiver, D2B
Telephone transmitter and receiver unit, D2B 
Cell phone separation point
45 7.5 Restraint systems control unit
46 40 Wiper ON/OFF relay
Wiper speed 1 and 2 relay
47 15 Glove compartment illumination with switch
Front cigar lighter (with illumination)
48 15
OM612.990 (→31.03.2004): Brake booster vacuum pump control unit
M112, M113: Circuit 15 connector sleeve (fused)
OM646 (USA →31.03.2004): Circuit 30 connector sleeve
OM646 (01.04.2004→): O2 sensor upstream of TWC [kAt] connector
49 7.5 Restraint systems control unit
50 5 Light switch module
OM612.990
   Glow output stage (→31.03.2004)
   Hot film mass air flow sensor (01.04.2004-30.11.2004)
51 7.5 AAC with integrated control additional fan motor
Instrument cluster
Comfort automatic air conditioning:
   C-AAC [K-KLA] multifunction sensor
   C-AAC [K-KLA] sun sensor (4 in total)
   Left front lamp unit
   Right front lamp unit
AMG: Charge air cooler circulation pump
W203.0 (→31.07.2001): SPS [PML] control unit
52 15 Starter
53 25 Diesel engines:
   Starter relay 
   Rear SAM control unit with fuse and relay module
OM611, OM612, OM642, OM646: CDI control unit
15
Gasoline engines:
   Starter relay
   Rear SAM control unit with fuse and relay module
M111, M271, M272: ME-SFI [ME] control unit
M112, M113:
   ME-SFI [ME] control unit
   Circuit 87M1e connector sleeve
54 15
M271.940:
   ME-SFI [ME] control unit
   Purge control valve (USA version)
   Activated charcoal canister shutoff valve
M271.942: NOX (nitrogen oxides) control unit
OM642, OM646: CDI control unit
OM642, OM646: Circuit 30 connector sleeve
7.5
OM611, OM612: CDI control unit
OM611, OM612: Vent line heater element  (→30.11.04)
55 7.5 Steering angle sensor
Distronic: DTR control unit
Valid for transmission 722:
   ETC [EGS] control unit (up to 31.5.04)
   Electronic selector lever module control unit
   Electric controller unit (VGS)
Valid for transmission 716:
   Gear recognition switch
   Automated manual transmission control unit
56 5 ESP and BAS control unit
Stop light switch
57 5 Steering angle sensor (up to 31.5.02)
EIS [EZS] control unit 
Steering column module (as of 1.6.02)
M112, M113: ME-SFI [ME] control unit
58 40
Valid for transmission 716: SEQ hydraulic pump
59 50 ESP and BAS control unit
60 40 ESP and BAS control unit
61 15
Valid for transmission 716: Automated manual transmission control unit
62 5 Data link connector
Light switch module
Stop light switch
63 5 Light switch module
64 10 Radio
Radio and navigation unit
COMAND operating, display and control unit
65 40
M112, M113: Electric air pump
Relay
I Fanfare horn system 
K Terminal 87, chassis
L Wiper speed 1 and 2 
M Terminal 15R
N SEQ [ASG] pump control (with Sequentronic automated manual transmission (ASG))
O M112, M113, M271: Air pump
P Terminal 15 
Q Wiper ON/OFF 
R Terminal 87 relay, engine
S Starter 

Front prefuse box

2000-2007 Mercedes C-Class (W203) High Fuses Block
Fuses Specifications
No. A Description
1 125 Interior fuse box
2 200 Rear SAM control unit with fuse and relay module
3 125 Additional fuse holder l, spare wheel well
4 200 Front SAM control unit with fuse and relay module
5 125 Engine and AC electric suction fan with integrated control
Diesel: Glow output stage
6 60 Front SAM control unit with fuse and relay module
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Mercedes-Benz C-Class (W203)

Location and description of fuses and relay Mercedes Benz C-Class (W203) - 1.8L (C180, C200, C230), 2.0L (C180, C200), 2.5L (C230), 2.6L (C240), 3.0L (C280), 3.2L (C320, C32 AMG), 3.5L (C350), 5.5L (C55 AMG) and diesel 2.1 / 2.2L (C200 CDI, C220 CDI ), 2.7L (C270 CDI), 3.0L (C30 CDI AMG, C320 CDI) (2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007)