1997-2005 Mercedes M-Classe (W163) Fuse Box Diagram

Engine Compartment Fuse Box (→08.31.2001)

Fuses Specifications
No. A Description
1 15 Interior socket
2 7.5 Instrument cluster: 
  • Left front indicator lamp
Left front lamp unit: 
  • Left turn signal lamp
Left left taillamp: 
   • Left turn signal lamp
Left auxiliary turn signal lamp 
Interior connector sleeve, circuit L 
  • Trailer hitch connector
3 15 Right front lamp unit: 
  • Right high beam
4 30 Supply of sliding/tilting roof (SHD) circuit 30:
  • Sliding/tilting roof motor (SHD)
5 7.5 Left front lamp unit: 
  • Left high beam
Instrument duster: 
  • High beam indicator lamp
6 7.5 Rear-end door wiper motor 
7 15 Combination switch: 
  • Hazard flasher switch
  • Windshield washer system switch
  • Wipe switch 
Wiper motor
Relay k17: Front wiper interval relay
8 25 Transfer case control unit 
9 7.5 Instrument duster 
License plate illumination:
  • Left rear-end door license plate lamp / 3V right rear-end door license plate lamp
  • License plate lamp, left spare wheel carrier / license plate lamp, right spare wheel carrier
Cockpit connector sleeve, circuit 58d: 
  • Left vent window switch ( right vent window switch (light emitting diodes)
  • Left front SIH switch (right front SIH switch (light emitting diodes)
  • Heater/AC switch (light emitting diodes)
  • 2-way switch combination (light emitting diodes)
  • ESP OFF switch (light emitting diodes)
  • Outside mirror switch, folding in and out (light emitting diode)
  • Electric headlamp range adjustment selector (light emitting diode)
  • Rear window wipe/wash switch (light emitting diode)
  • Tlltlng/slidlng roof switch (light emitting diode)
  • Backup lamp switch
  • Illumination
  • Center console switch group
10 10 Radio (A2) Roof connector sleeve, arcuit 15R: 
  • Left sun visor with Illuminated mirror
  • Right sun visor with illuminated mirror
  • Trip computer control unit
  • Automatic dimming Inside rearview mirror 
Front cigar lighter (with ashtray illumination)
  • Heating element
Glove compartment lamp
Instrument cluster: 
  • Airbag Indicator and warning light
11 10 Hot-film mass air flow sensor 
Camshaft position sensor 
Fuel injection valves 
In the case of M111:
  • HFM control module
12 7.5 Interior connector sleeve, circuit 58L: 
  • Trailer hitch connector 
  • Left taillamp :
  • Left taillamp and parking lamp
Left front lamp unit: 
  • Left standing and parking lamp
  • Left slde-marker lamp
13 10 Roof connector sleeve, circuit 30: 
  • Front dome lamp (with shut-off delay and front reading lamp)
  • Rear interior lamp
  • Dome lamp in left rear
  • Dome lamp In right rear
  • Trip computer control unit
Instrument cluster: 
  • Seat belt warning lamp
Steering angle sensor 
Datallnk connector
14 10 With diesel:
   Injection timing device
  Exhaust gas recirculation valve
15 10 Interior connector sleeve, circuit 54: 
Left taillamp : 
  • Left stop lamp 
Right taillamp: 
  • Right stop lamp
Center-high mounted stop lamp
  • Center high-mounted stop lamp, spare wheel carrier
Trailer hitch connector
16 15 Diagnostic connector 
Reversing lamp switch 
Cockpit connector sleeve, circuit 15: 
  • Air conditioning control unit
  • Heater/AC switch:
    • Blower switch
    • Thermostat
    • Recirculated air switch Indicator lamp
    • llumination
    • Switch illumination
    • Recirculated air switch
    • Air conditioning On indicator lamp
    • Switch Illumination
    • Air conditioning On switch
  • Recirculated air flap actuator motor
  • Air conditioning control unit
17 15 Cargo area connector box 
18 25 Trailer hitch connector 
19 15 M111:
   HFM control module 
   Adjustable camshaft timing solenoid 
   Activated charcoal filter shutoff valve 
M112/113:
Terminal 87 M2e connector sleeve
  • Intake manifold switchover valve
  • EGR switchover valve
  • Air pump vacuum valve
  • O2-Left oxygen sensor, upstream of catalytic converter.
  • O2-Right oxygen sensor, upstream of catalytic converter.
Purge control valve (AKF) 
O2-Left oxygen sensor, downstream of catalytic converter. 
O2-Right oxygen sensor, downstream of catalytic converter. 
M113:
   Cylinder switch-off valve
20 15 Left electrically adjustable and heated outside mirror, right electrically adjustable and heated outside mirror
Mirror heater
21 25 With Sound system:
   Sound amplifier
   Radio 
22 Interior connector sleeve, circuit 15
  • ETC [EGS] control module
  • Transmission range recognition switch
  • Blocking solenoid, backup/park pawl 
  • Transfer case control unit
  • Traction systems control unit
With ESP:
   Steering angle sensor
   Instrument cluster
   Fuel pump relay 
   Cruise control pushbutton switch
With M111:
   HFM-SFI control unit 
With M112/113:
   Motor electronics control unit 
23 - Spare
24 7.5 Interior connector sleeve, circuit 58R: 
  • Trailer hitch connector
Right front lamp unit: 
  • Right standing and parking lamp
Right taillamp: 
  • Right taillamp and parking lamp
Right side-marker lamp
25 7.5 Right front lamp unit: 
  • Right turn signal lamp
Right taillamp 
  • Right turn signal lamp
Right auxiliary turn signal lamp
Traction system control unit 
Interior connector sleeve, circuit R: 
  • Trailer hitch connector
Instrument cluster: 
  • Right turn signal indicator lamp
26 15 Connector sleeve, circuit 15 fused: 
  • Ignition coils M111
  • Ignition coils M112
  • Ignition coils M113
27 40 Traction systems control unit
28 20 Heated seats interior connector sleeve: 
Supply of left/right heated seats:
  • Heated seats relay, stage 1
  • Heated seats relay, stage 2
  • Left front seat heated cushion / right front seat heated cushion
  • Left front backrest heated cushion right front backrest heated cushion
29 30 Center console switch group: 
  • Right front window switch
    • Right front power window motor
  • Left rear window switch
Switch combination, power windows, rear center console: 
  • Left rear window switch
    • Power window motor: rear left
Relay 16:
   Right front power window 
30 30 Center console switch group: 
  • Left front window switch
  • Right rear window switch
Switch combination, power windows, rear center console: 
  • Right front window switch
Relay 18:
   Left front power window 
31 15 Center console switch group: 
  • Switch, electrical outside mirror adjustment
Cockpit connector sleeve, vent window: 
Rear vent window:
  • Left vent window switch
  • Right vent window switch
Sliding/tilting roof switch 
32 30 Right front seat adjustment switch 
Right front seat adjustment motor group
  • Fore/aft motor
  • Rear up/down motor
  • Front up/down motor
  • Backrest fore/aft motor
33 30 Left front seat adjustment switch 
Seat adjustment motor group: left front
34 7.5 Left front lamp unit: 
   Left low beam (Electric headlamp range adjustment selector)
   Left headlamp range adjustment motors, right headlamp range adjustment motors 
35 7.5    Right front lamp unit: 
   Right low beam 
36 25 Rear window heater
37 20 Fanfare horns:
  • Two-tone signaling system
  • Two-tone signaling system, hom 2
38 20 Fuel pump with fuel gauge sensor 
39 - Spare
40 25 M 612.963: Vacuum pump
41 25 Circulating pump relay 
Right engine compartment connector sleeve, pump: 
  • Coolant circulation pump
  • Module box blower motor
With diesel:
Healer booster Stationary heater
42 20 Central locking:
  • Left front door central locking motor
  • Right front door central locking motor 
Connector sleeve, interior central locking: 
  • Rear-end door central locking motor
  • Left rear door CL [ZV] motor
  • Right rear door CL [ZV] motor
  • Fuel filler flap CL [ZV] motor
43 30 Heater blower relay 
Blower motor 
44 30 Engine fan relay, stage 1 
Engine fan relay, stage 1 
Left engine compartment connector sleeve, fan 
  • Left additional fan
  • Right additional fan
45 40 Electrical air pump
46 7.5 Cockpit connector sleeve, rear fog lamp: 
  • 2-way switch combination (rear fog lamp diode)
Left taillamp, right taillamp
  • Left rear fog lamp, right rear fog lamp
Trailer hitch connector
47 15 Left engine compartment connector sleeve, additional headlamp
Left front lamp unit: 
  • Left fog lamp
  • Left additional headlamp high beam, right additional headlamp high beam
Right front headlamp unit
Relay
K1 Heated rear window
K2 FAN relay module
K3 except engine 612.963: Electric fuel pump
K4 Left turn signal
K5 Circuit 58 (license plate illumination/ instrument cluster)
K6 Electronic Stability Program (ESP) / stop lamp suppression
K7 Right turn signal
K8 Starter (solenoid switch, terminal 50)
K9 Circuit 58R (right standing lamp)
K10 -
K11 612.963: Circuit 15 relay delayed
K12 Circuit 15
K13 Circuit 58L (left standing lamp)
K14 Convenience
K15 Central locking (unlocking tailgate)
K16 Right front power window
K17 Front wiper relay, intermittent
K18 Left front power window
K19 Heater circulation pump relay and box fan fuse and relay box
K20 Central locking (locking all doors)
K21 Heater blower
K22 Low beam and contact piece
K23 Central locking (unlocking front passenger's door, rear doors and fuel tank flap)
K24 Central locking (unlocking driver's door)
K25 ETS / ESP hydraulic unit
K26 Engine fan (stage 1, with air conditionin)
K27 -
K28 Secondary air injection pump
K29 Rear fog lamp

Engine Compartment Fuse Box (09.01.2001→)

Fuses Specifications
No. A Description
1 -  -
2 7.5 Instrument cluster: 
  • Left turn signal indicator lamp
Left front lamp unit: 
  • Left turn signal lamp
Left taillamp: 
  • Left turn signal lamp
Left auxiliary turn signal lamp 
Interior connector sleeve, circuit L
  • Trailer hitch connector
3 - -
4 20 Supply of sliding/tilting roof (SHD) circuit 30:
  • Sliding/tilting roof motor (SHD)
5 -  -
6 20 Seat heater
7 30 Combination switch: 
  • Hazard flasher switch
  • Windshield washer system switch
  • Wipe switch
  • Wiper motor
Windshield washer fluid pump 
Relay k17:
Front wiper interval relay
8 25 Transfer case control unit/ E-Call control unit 
9 7.5 Instrument cluster 
License plate illumination:
  • Left rear-end door license plate lamp, right rear-end door license plate lamp,
  • License plate lamp, left spare wheel carrier, license plate lamp, right spare wheel carrier
Cockpit connector sleeve, circuit 58d: 
  • Left vent window switch, right vent window switch (light emitting diodes)
  • Left front SIH switch, right front SIH switch (light emitting diodes)
  • 2-way switch combination (light emitting diodes)
  • ESP OFF switch (light emitting diodes)
  • Outside mirror switch, folding in and out (light emitting diode)
  • Electric headlamp range adjustment selector (light emitting diode)
  • Rear window wipe/wash switch (light emitting diode)
  • Tilting/sliding roof switch (light emitting diode)
  • Backup lamp switch
  • Illumination
  • Center console switch aroup
10 10 Radio 
Roof connector sleeve, circuit 15R 
  • Lett sun visor with illuminated mirror
  • Right sun visor with Illuminated mirror
  • Automatic dimming inside rearview mirror
Front cigar lighter with ashtray illumination
  • Heating element 
Glove compartment lamp 
Instrument cluster: 
  • Airbag indicator and warning light
11 15 Hot-film mass air flow sensor 
Camshaft position sensor
Fuel injection valves
In the case of M111:
  • HFM control module
12 7.5 Interior connector sleeve, circuit 58L
  • Trailer hitch connector)
  • Left taillamp:
    • Left taillamp and parking lamp
Left front lamp unit: 
  • Left standing and parking lamp
  • Left side-marker lamp
13 10 Roof connector sleeve, circuit 30 
  • Front dome lamp (with shut-off delay and front reading lamp)
  • Rear interior lamp
  • Dome lamp in left rear
  • Dome lamp in right rear (
  • Left front footwell lamps
  • Right front footwell lamps
  • Trip computer control unit (TRIP)
Instrument duster: 
Steering angle sensor 
Datalink connector
14 25 Engine control unit (diesel)
Injection timing device
Exhaust gas redrculation valve
15 10 Interior connector sleeve, circuit 54
Left left taillamp 
  • Left stop lamp 
Right taillamp: 
  • Right stop lamp
  • Center high-mounted stop lamp 
  • Center high-mounted stop lamp, spare wheel carrier
  • Stop lamp switch
16 15 Diagnostic connector
Reversing lamp switch 
Cockpit connector sleeve, circuit 15 
  • Air conditioning control unit
  • Heater/AC switch
    • Blower switch 
    • Thermostat
    • Illumination
    • Recirculated air switch
    • Air conditioning On switch
  • Recirculated air flap actuator motor
Instrument cluster 
17 20 Cargo area connector box
18 25 Trailer hitch connector
19 15 M111:
HFM control module
Adjustable camshaft timing solenoid 
Activated charcoal filter shutoff valve 
M112/113:
Terminal 87 M2e connector sleeve 
  • EGR switchover valve
  • Air pump vacuum valve
  • O2-Left oxygen sensor, upstream of catalytic converter.
  • O2-Right oxygen sensor, upstream of catalytic converter.
Purge control valve
O2-Left oxygen sensor, downstream of catalytic converter.
O2-Right oxygen sensor, downstream of catalytic converter. 
20 -  -
21 15 Radio 
Cellular telephone
Voice control system (VCS)
22 15 Interior connector sleeve, circuit 15 
  • ETC [EGS] control module
  • Transmission range recognition switch
  • Blocking solenoid, backup/park pawl
  • Transfer case control unit
  • Traction systems control unit  (With ESP)
  • Steering angle sensor
Instrument cluster 
Cruise control pushbutton switch
With M111:
HFM-SFI control unit 
With M112/113:
Motor electronics control unit 
Suction fan control unit (on models 163.174/175)
Rain sensor
23 15 Headlamp range adjustment control module
24 7.5 Interior connector sleeve, circuit 58R 
  • Trailer hitch connector
Right front headlamp unit 
  • Right standing and parking lamp
Right taillamp 
  • Right taillamp and parking lamp
Right slde-marker lamp 
25 7.5 Right front headlamp unit 
  • Right turn signal lamp 
Right taillamp 
  • Right turn signal lamp
Right auxiliary turn signal lamp 
Traction system control unit 
Interior connector sleeve, circuit R: 
  • Trailer hitch connector
Instrument duster
  • Right turn signal Indicator lamp
26 15 Terminal 15 connector sleeve, fused 
  • Ignition colls M111
  • Ignition colls M112
  • Ignition coils M113
27 40 Traction systems control unit 
28 -  -
29 -  -
30 -  -
31 15 Center console switch group
Cockpit connector sleeve, vent window 
  • Left vent window switch
  • Right vent window switch
Tilting/sliding roof switch 
Mirror lamps
32 -  -
33 -  -
34 -  -
35 -  -
36 10 Mirror heater
37 20 Two-tone signaling system 
38 15 163.128: Fuel pump with fuel level sensor 
39 -  -
40 25 Sound system
41 -  -
42 20 Central locking:
  • Left front door central locking motor
  • Right front door central locking motor
Interior central locking connector sleeve, motor 1 
  • Rear-end door central locking motor
  • Left rear door CL [ZV] motor
  • Right rear door CL [ZV] motor
  • Fuel filler flap CL [ZV] motor
43 20 Blower motor, rear
44 15 Rear-end door washer fluid pump 
44 40 Type 163.154/157
Engine fan relay, stage 1
Engine fan relay, stage 1 
Left engine compartment connector sleeve, fan 
  • Left additional fan)
  • Right additional fan
45 40 Electric air pump 
46 7.5 Cockpit connector sleeve, rear fog lamp
  • Left rear fog lamp, right rear fog lamp
Trailer hitch connector 
47 15 Additional headlamp connector sleeve, right of engine compartment 
Left front headlamp unit 
  • Left fog lamp
  • Left additional headlamp high beam, right additional headlamp high beam
Right front headlamp unit 
  • Right fog lamp
48 20 Alarm horn
Relay
K1 Heated mirrors
K2 FAN relay module 
K3 612.963: Electric fuel pump
K4 Left turn signal 
K5 Circuit 58 (license plate illumination/ instrument cluster)
K6 Stop lamp 
K7 Right turn signal
K8 Starter (solenoid switch, terminal 50)
K9 Circuit 58R (right standing lamp)
K10  -
K11 612.963, 628.963: Relay circuit 15 delayed 
K12 Circuit 15
K13 Circuit 58L (left standing lamp)
K14 Convenience (windows/roof/mirrors)
K15 Central locking (unlocking tailgate)
K16  -
K17 Front wiper relay, intermittent
K18  -
K19  -
K20 Central locking (locking all doors)
K21  -
K22  -
K23 Central locking (unlock front passenger door, rear doors)
K24 Central locking (unlock driver door and fuel filler flap)
K25  -
K26 Engine fan (stage 1, with air conditionin)
K27 Rear-end door washer pump 
K28 Secondary air injection pump 
K29 Rear fog lamp 

Fuse and Module Box Right Front Footwell

Fuses Specifications
No. A Description
1 7.5 AIRBAG OFF indicator lamp
2 20 up to VIN A289564, X754619: Front cigar lighter (with ashtray illumination)
15 as of VIN A289565, X754620: Front cigar lighter (with ashtray illumination)
3 15 Tailgate wiper motor
4 7.5 up to VIN A289564, X754619: E-Call control unit ((USA) only)
40 as of VIN A289565, X754620: Front blower motor
5 7.5 up to VIN A289564, X754619: Instrument duster/air conditioning
15 as of VIN A289565, X754620: Instrument duster/air conditioning
6 20 Interior socket
7 -  -
8 20 up to VIN A289564, X754619: Left front seat heated cushion and right front seat heated cushion
9 -  -
10 30 up to VIN A289564, X754619: Left front seat adjustment switch
35 as of VIN A289565, X754620: Left front seat adjustment switch
11 30 up to VIN A289564, X754619: Right front seat adjustment switch
35 as of VIN A289565, X754620: Right front seat adjustment switch
13 20 Gasoline: Remove existing fuel pump with fuel level sensor
17 25 Heated rear window
19 30 HCS [SRA] pump
20 7.5 as of VIN A289565, X754620: Right high beam
21 7.5 as of VIN A289565, X754620: Left high beam/ high beam indicator
24 25 as of VIN A289565, X754620: Rear power window motors and voltage supply for lower control panel control unit
25 25 as of VIN A289565, X754620: Front power window motors and voltage supply for lower control panel control unit
Relay
K1 Seats convenience control 
K2 Gasoline: Fuel pump 
K4 Rear window defroster 
K5 HCS [SRA] pump 
K6 as of VIN A289565, X754620: Auxiliary high beam
K8 as of VIN A289565, X754620: Lower control panel/contact bridge switch
K9 Relay for voltage supply of term. 15