Mercedes-Benz M-Class (1997-2005) – fuses diagram

Fuses and relay box on the left side of the engine compartment (Up-To-08/31/01)

Number Function A
1 Internal socket (X58/1) 15
2 Instrument cluster (A1): – Left front turn signal lamp (A1e1) Left front light assembly (E1): – Left turn signal lamp (E1e5) Left taillamp (E3): – Left turn signal lamp (E3e1) Left auxiliary turn signal lamp (E22/1) Internal connection sleeve, L circuit (Z53/4) – Trailer hitch connector (X52) 7,5
3 Right front light unit (E2): – Right high beam (E2e1) 15
4 Power supply for the sliding/tilting roof (SHD) circuit 30: – Sliding/tilting roof (SHD) motor (M12) 30
5 Left front light unit (E1): – Left high beam (E1e1) Tool dust collector (A1): – High beam (A1e3) 7,5
6 Rear door wiper motor (M6/4) 7,5
7 Combination switch (S4): – Emergency light switch (S6/1s1) – Windshield washer switch (S4s4) – Wiper switch (S4s5) Wiper motor (M6/1) Relay k17: Front wiper interval relay 15
8 Transport box control unit (N78) 25
9 Tool dust collector (A1) License plate lighting: – Left rear door registration lamp (Е199/3V Right rear door registration lamp (E19/4) – Registration lamp, left spare wheel holder (E19/5)/Registration lamp, right spare wheel holder (E19/6) Cockpit connecting sleeve, 58d wire (Z50/ 1):
– Left vent window switch (S21/13y right vent window switch (S21/14) (light emitting diodes) – Left front SIH switch (S51/1У right front SIH switch (S51/2) (light emitting diodes) -. Heating/AC switch (S98) (light-emitting diodes) – Two-way switch combination (S97/6) (light-emitting diodes) – ESP OFF switch (S76/6) (light-emitting diodes) – Exterior mirror switch, folding and unfolding (S50/1) (light-emitting diode) – Electric headlight range adjustment switch (SI/1) (light-emitting diode) – Rear window wipe/wash switch (S78) (light-emitting diode) – Tlltlng/slidlng roof switch (S13/2) (light-emitting diode) – Backup lamp switch (S16/2) – Lighting (R3e1) – Center console switch group (S21)
7,5
10 Radio (A2) Roof connector bushing, arcuit 15R (Z54/1):
– Left sun visor with illuminated mirror (Е14/1) – Right sun visor with illuminated mirror (E14/2) – Trip computer control unit (N41) – Auto dimming Interior rearview mirror (H7) Front cigar lighter (with ashtray illumination) R3 – Heating element (R3r1) Glove compartment lamp (E13/1) Instrument cluster (A1):
– Airbag indicator and warning light (A1e15)
10
11 Hot air mass flow sensor (B2/5) Camshaft position sensor (L5/1) Fuel injection valves (Y62) For M111: – HFM control module (N3/4) 10
12 Internal connection sleeve, circuit 58L (Z53/6): – Trailer hitch connector (X52) – Left taillamp (E3): – Left pusher and parking lamp (E3e2) Left front light assembly (E1): – Left standing lamp and parking lamp (E1e3) – Left side gold colored marker lamp (E1e6) 7,5
13 Roof connector sleeve, circuit 30 (Z54/2): – Front dome light (with shut-off delay and front reading light) (E15/2) – Rear interior light (E15/3) – Rear left dome light (E15/8) – Right rear dome light (E15/9) – On-board computer control unit (N41) Instrument cluster (A1):
– Seat belt warning lamp (A1E9) Steering angle sensor (N49) Datallnk connector (X11/4)
10
14 With diesel: Injection timing device Exhaust gas recirculation valve 10
15 Internal connection sleeve, circuit 54 (Z52/6): Left hitch lamp (E3): – Left stop lamp (E3e4) Right hitch lamp (E4): – Right stop lamp (E4e4) – Center-mounted stop lamp (E21) – High-mounted center stop lamp, spare wheel holder (E35) – Trailer hitch connector (X52) 10
16 Diagnostic connector (X11/4) Reversing light switch (S16/2) Cockpit connection sleeve, circuit 15 (Z50/2): – Air conditioning control unit (N19) – Heating/AC switch (S98):
– Blower switch (S98s1) – Thermostat (S98p1) – Recirculation air switch Indicator lamp (S98h1) – lumination (S98e1) – Lighting switch (S98e2) – Recirculation air switch (S98s2) -. Air conditioning Indicator lamp (S98h2) – Switch illumination (S98e2) – Air conditioning Switch (S98s3) – Engine with recirculating air flap (M39) – Air conditioning control unit (N19)
15
17 Cargo area coupler box (X58/4) 15
18 Trailer hitch connector (X52) 25
19 M111: HFM control module (N3/4) Adjustable camshaft timing solenoid (Y49) Activated carbon filter shut-off valve (Y58) M112/113: Terminal 87 M2e connection sleeve (Z7/36) – Intake manifold switch valve (Y22/5) – EGR switch valve (Y27) – Air pump vacuum valve (Y32) – O2 – left oxygen sensor, before catalytic converter. (G3/3) – O2 – right oxygen sensor, before the catalytic converter. (G3/4) Flush control valve (AKF) (Y58/1) O2 – left oxygen sensor, after catalytic converter. (G3/5) O2 – right oxygen sensor, after catalytic converter. (G3/6) M113: 1Y80 cylinder shut-off valve 1Y80 cylinder shut-off valve. 15
20 Left electrically adjustable and heated outside mirror (M21/1), right electrically adjustable and heated outside mirror (M21/2) Mirror heater 15
21 With sound system: sound amplifier (A2/13) Radio (A2) 25
22 Internal connection sleeve, circuit 15 (Z51/5) – ETC [EGS] control module (N15/3) – Transmission range recognition switch (S16/10) – Locking solenoid, spare/parking pawl (Y66/1) – Transport box control unit (N78) – Traction systems control unit (N47) With ESP:
– Steering angle sensor (N49) Instrument cluster (A1) (F1k3) Fuel pump relay Cruise control button (S40) Z M111: HFM-SFI control unit (N3/4) Z M112/113: Engine electronics control unit (N3/10)
23 Spare
24 Inner connection sleeve, circuit 58R (Z52/4): – Trailer hitch connector (X52) Right front headlight (E2): – Right standing lamp and parking lamp (E2e3) Right threaded sub-area (E4): – Right angle and parking lamp (E4e2) Right side marker lamp (E2e6) 7,5
25 Right front headlight (E2): – Right turn signal lamp (E2e5) Right threaded sub-area (E4) – Right turn signal lamp (E4e1) Right auxiliary turn signal lamp (E22/2) Traction system control unit (N47) Internal connection sleeve, R circuit (Z53/5): – Trailer hitch connector (X52) Instrument cluster (A1): – Right turn signal lamp (A1e2) 7,5
26 Connection sleeve, circuit 15 with fuse (Z3/29): – M111 ignition coils (T1) – M112 ignition coils (T1) – M113 ignition coils (T1) 15
27 Traction systems control unit (N47) 40
28 Heated interior seat connection sleeve (Z53/8): supply of heated left/right seats:
– Heated relay seats, stage 1 (K59) – Heated relay seats, stage 2 (K59/1) – Left front seat heated cushion (R13/1)/right front seat heated cushion (R13/3) – Left front seatback heated cushion (R13/ 2) Right rear seatback heated front cushion (R13/4)
20
29 Center console switch group (S21): – Right front window switch (S21s2) – Right front power window motor (M10/4) – Left rear window switch (S21s3) Switch combination, power windows, rear center console (S21/15): – Left rear window switch (S21/15s1) – Power window motor: rear left side (M10/5) Relay 16: Right front power window (F1k16) 30
30 Center console switch group (S21): – Left front window switch (S21s1) – Right rear window switch (S21s4) Switch combination, power windows, rear center console (S21/15): – Right front window switch (S21/15s2) Relay 18: Front left power window (F1k18) 30
31 Center console switch group (S21): – Switch, electric exterior mirror adjustment (S50) Cockpit connecting sleeve, vent window (Z50/ 13): Rear vent window: – Left vent window switch (S21/13) – Right vent window switch (S21/14) Sliding-tilt roof switch (S13/2) 15
32 Right front seat adjustment switch (S23) Right front seat adjustment motor group (M26) – Front/rear motor (M26/m1) – Rear motor up/down (M26/m2) – Front motor up/down (M26/m3) – Front/rear backrest motor (M26/m5) 30
33 Left front seat adjustment switch (S22) Seat adjustment engine group: left front (M25) 30
34 Left front light group (E1): left dipped beam (E1e2) (S1/1 Electric headlight adjustment range selector switch) Left headlight adjustment motors (E1m1), right headlight adjustment motors (E1m2) 7,5
35 Right front headlight (E2): right dipped beam (E2e2) 7,5
36 Rear window heater 25
37 Horns: – Two-tone signaling system (H1) – Two-tone signaling system, horn 2 (H1/1) 20
38 Fuel pump with fuel level sensor (M3/3) 20
39 Spare
40 Spare vacuum pump (M 612.963) 25
41 Circulation pump relay (F1k19) Right bushing connecting engine compartment, pump (Z57/2): – Coolant circulation pump (M13) – Modular blower motor (M2/2) With diesel: Healer booster Stationary heater 25
42 Circulation pump relay (F1k19) Central locking: – Left front door Central locking motor (M14/6) – Right front door Central locking motor (M14/5) Connecting sleeve, inner central locking (Z53/1):
– Rear door central locking motor (M14/7) – Rear door left CL [ZV] motor (M14/8) – Rear door right CL [ZV] motor (M14/9) – Fuel filler flap motor CL [ZV] motor (M14/10) Right engine compartment connecting sleeve, pump (Z57/2): – Coolant circulation pump (M13) – Modular blower motor (M2/2) With diesel: Healer booster Stationary heater.
20
43 Heater blower relay (F1 k21) Blower motor (М2) 30
44 Engine fan relay, stage 1 (Flk26) Engine fan relay, stage 1 (F1k26) Left engine compartment connecting sleeve, fan (Z56/2) – Left auxiliary fan (M4m1) – Right auxiliary fan (M4m2) 30
45 Electric air pump (M33) 40
46 Cockpit connection sleeve, rear fog light (Z50/10): – Two-way switch combination (S96/7) (rear fog light diode) Left threaded lamp (E3), right threaded lamp (E4) – Left rear fog light (E3e5), right rear fog light (E4e5) Trailer hitch connector (X52) 7.5
47 Left engine compartment connecting sleeve, auxiliary headlight (Z56/4) Left front light assembly (E1): – Left fog light (E1e4) – Left auxiliary high beam (E1e7), right auxiliary high beam (E2e7) Right front headlight (E2) 15
Relays
K1 Heated rear window relay
K2 FAN relay module (K39)
K3 Electric fuel pump relay (except engine 612.963)
K4 Left turn signal relay
K5 Circuit 58 relay, license plate light/ instrument cluster
K6 Electronic stability program (ESP) / stop lamp switch relay
K7 Right turn signal relay
K8 Starter relay (electromagnetic switch, terminal 50)
K9 Circuit 58R relay (right standing lamp)
K10 Spare
K11 Circuit 15 relay delayed (motor 612.963 only)
K12 Circuit 15 relay
K13 Relay 58L (left standing lamp)
K14 Comfort relay
K15 Central locking relay, tailgate unlocking
K16 Right front window power relay
K17 Front windshield wiper relay, intermittent
K18 Left windshield power relay
K19 Heater circulator pump relay and fan fuse box and relay box
K20 Central locking relay: Locking all doors
K21 Heater blower relay
K22 Low beam and relay contact
K23 Central locking relay: Unlocking front passenger door, rear door and fuel tank flap
K24 Central locking relay: Unlocking the driver’s door
K25 ETS / ESP hydraulic relay
K26 Engine fan relay, stage 1, with air conditioning
K27 Spare
K28 Secondary air injection pump relay
K29 Rear fog lamp relay

Fuses and relay box on the left side of the engine compartment (As-Of-09/01/01)

Number Function A
1 Not assigned.
2 Instrument cluster (A1): – Left turn signal lamp (A1e1) Left front light unit (E1): – Left turn signal lamp (E1e5) Left taillamp (E3): – Left turn signal lamp (E3e1) Left auxiliary turn signal lamp (E22/1) Internal connection sleeve, L circuit (Z53/4) – Trailer hitch connector (X52) 7,5
3 Not assigned.
4 Power supply for sliding/tilting roof (SHD) circuit 30: – Sliding/tilting roof (SHD) motor (M12). 20
5 Not assigned.
6 Seat heater 20
7 Combination switch (S4): – Emergency light switch (S6/1s1) – Windshield washer switch (S4s4) – Wiper switch (S4s5) Wiper motor (M6/1) Windshield washer fluid pump (M5/1) Relay k17: Windshield wiper interval relay 30
8 Transport box control unit (N78)/E-Call (A35/8) 25
9 Instrument cluster (A1) License plate lighting: – Left rear door registration lamp (Е199/3), right rear door registration lamp (E19/4), – Registration lamp, left spare wheel holder (E19/5), registration lamp, right spare wheel holder (E19/6) Cockpit connection sleeve, circuit 58d (Z50/ 1):
– Left vent window switch (S21/13), right vent window switch (S21/14) (light emitting diodes) – Left front SIH switch (S51/1), right front SIH switch (S51/2) (light emitting diodes) – Combination two-way switch (S97/6) (light emitting diodes) – ESP OFF switch (S76/6) (light emitting diodes) – External mirror switch, folding and unfolding (S50/1) (light-emitting diode) – Electric headlight range adjustment switch (S1/1) (light-emitting diode) – Rear window wipe/wash switch (S78) (light-emitting diode) – Tilt and slide roof switch (S13/2) (light-emitting diode) – Backup lamp switch (S16/2) – Lighting (R3e1) – Center console switch group (S21)
7,5
10 Radio (A2) Roof connector bushing, circuit 15R (Z54/1) – Lett sun visor with illuminated mirror (Е14/ 1) – Right sun visor with illuminated mirror (E14/2) – Automatic dimming in rearview mirror (H7) Front cigar lighter with ashtray illumination (R3) – Heating element (R3r1) Glove compartment lamp (E13/1) Instrument cluster (A1):
– Airbag indicator and warning light (A1e15)
10
11 Hot air mass flow sensor (B2/5) Camshaft position sensor (L5) Fuel injection valves (Y62) For M111: – HFM control module (N3/4) 15
12 Internal connection sleeve, circuit 58L (Z53/6) – Trailer hitch connector (X52) – Left taillamp (E3): – Left pushrod and parking lamp (E3e2) Left front light assembly (E1): – Left standing lamp and parking lamp (E1e3) – Left side marker light (E1e6) 7,5
13 Roof connector bushing, circuit 30 (Z54/2) – Front dome light (with shut-off delay and front reading light) (E15/2) – Rear interior light (E15/3) – Rear left dome light (E15/8) – Rear right dome light (E15/9) – Front left dome light (E17/16) – Front right footwell light (E17/15) – Trip computer control unit (TRIP) (N41) Tool dust collector (A1):
Steering angle sensor (N49) Data link connector (X11/4)
10
14 Engine control unit (diesel) Injection timing device Exhaust gas recirculation valve 25
15 Internal connection sleeve, wire 54 (Z52/6) Left taillamp (E3) – Left stop lamp (E3e4) Right threaded sub-area (E4): – Right stop lamp (E4e4) – High-mounted center stop lamp (E21) – High-mounted center stop lamp, spare wheel holder (E35) – Stop light switch 10
16 Diagnostic connector (X11/4) Reversing light switch (S16/2) Cockpit connection sleeve, Circuit 15 (Z50/2) – Air conditioning control unit (N19) – Heating/AC switch (S98) – Blower switch (S98s1) – Thermostat (S98p1) – Lighting (S98el) – Lighting (S98e2) – Air recirculation switch (S98s2) – Air conditioning Switch (S98s3) – Engine recirculating air flap (M39) Instrument cluster (A1) 15
17 Cargo area coupler box (X58/4) 20
18 Trailer hitch connector (X52) 25
19 M111: HFM control module (N3/4) Adjustable camshaft timing solenoid (Y49) Activated carbon filter shut-off valve (Y58) M112/113: Terminal 87 M2e connection sleeve (Z7/36) – EGR switch valve (Y27) – Air pump vacuum valve (Y32) – O2 – left oxygen sensor, before catalytic converter. (G3/3) – O2 – right oxygen sensor, before catalytic converter. (G3/4) Flush control valve (Y58/1) O2 – left oxygen sensor, after catalytic converter. (G3/5) O2 – right oxygen sensor, after catalytic converter. (G3/6) 15
20 Not assigned.
21 Radio (A2) Mobile phone Voice control system (VCS). 15
22 Internal connection sleeve, circuit 15 (Z51/5) – ETC [EGS] control module (N15/3) – Transmission range recognition switch (S16/10) – Locking solenoid, spare/parking pawl (Y66/1) – Transport box control unit (N78) – Traction systems control unit (N47) Z ESP:
– Steering angle sensor (N49) Instrument cluster (A1) Cruise control button (S40) Z M111: HFM-SFI control unit (N3/4) Z M112/113: Engine electronics controller (N3/10) Intake fan controller (N65/2) on 163 models.174/175 Rain sensor (B38)
15
23 Headlight range control module (N71) 15
24 Internal connection sleeve, circuit 58R (Z52/4) – Trailer hitch connector (X52) Right front headlight (E2) – Right standing and parking light (E2e3) Right threaded sub-area (E4) – Right parking lamp (E4e2) Right gold marker lamp (E2e6) 7,5
25 Right front headlight (E2) – Right turn signal lamp (E2e5) Right threaded sub-area (E4) – Right turn signal lamp (E4e1) Right auxiliary turn signal lamp (E22/2) Traction system control unit (N47) Internal connection sleeve, R circuit (Z53/5):
– Trailer hitch connector (X52) Tool dust collector (A1) – Right turn signal lamp (A1e2)
7,5
26 Terminal 15 connection sleeve, fuse (Z3/29) – M111 (T1) ignition coils – M112 (T1) ignition coils – M113(T1) ignition coils 15
27 Traction systems control unit (N47) 40
28 Not assigned.
29 Not assigned.
30 Not assigned.
31 Center console switch group (S21) Cockpit connecting sleeve, vent window (Z50/ 13) – Left vent window switch (S21/13) – Right vent window switch (S21/14) Tilt-slide roof switch (S13/2) Mirror lamps 15
32 Not assigned.
33 Not assigned.
34 Not assigned.
35 Not assigned.
36 Mirror heater 10
37 Two-tone signaling system (H1) 20
38 Fuel pump with fuel level sensor (M3/3) on 163.128 model only 15
39 Not assigned.
40 Sound system 25
41 Unassigned.
42 Central locking: – Left front door Central locking motor (M14/6) – Right front door Central locking motor (M14/5) Central locking connector inner bushing, motor 1 (Z53/1) – Rear door central locking motor (M14/7) – Left rear door CL [ZV] motor (M14/8) – Right rear door CL [ZV] motor (M14/9) – Fuel filler flap motor CL [ZV] motor (M14/10) 20
43 Blower motor (М2), rear 20
44 Rear windshield washer fluid pump (M5/3) 15
44 Type 163.154/157 Engine fan relay, stage 1 (F1k26) Engine fan relay, stage 1 (F1k26) Left engine compartment connecting sleeve, fan (Z56/2) – Left auxiliary fan (M4m1) – Right auxiliary fan (M4m2) 40
45 Electric air pump (M33) 40
46 Cockpit connection sleeve, rear fog light (Z50/10) – Left rear fog light (E3e5), right rear fog light (E4e5) Trailer hitch connector (X52) 7,5
47 Additional headlight connector bushing, right side of engine compartment (Z56/4) Left front headlight (E1) – Left fog light (E1e4) – Left auxiliary high beam (E1e7), right auxiliary high beam (E2e7) Right front headlight (E2) – Right fog light (E2e4) 15
48 Emergency horn (H3) 20
Relays
K1 Relay for heated mirrors
K2 FAN relay module (K39)
K3 Electric fuel pump relay (except for engine 612.963)
K4 Left turn signal relay
K5 Circuit 58 relay, license plate light/ instrument cluster
K6 Stop light relay
K7 Right turn signal relay
K8 Starter relay (electromagnetic switch, terminal 50)
K9 Circuit 58R relay (right standing lamp)
K10 Spare
K11 Relay circuit 15 delayed (motors 612.963 and 628.963 only)
K12 Relay circuit 15 delayed
K13 Relay 58L (left standing lamp)
K14 Comfort relay (windows/roofs/mirrors)
K15 Relay with central locking, tailgate unlocking
K16 Spare
K17 Front wiper relay, intermittent
K18 Spare
K19 Spare
K20 Relay with central locking: Locking all doors
K21 Spare
K22 Spare
K23 Central locking relay: unlock front passenger door, rear door
K24 Central locking relay: Unlock driver’s door and fuel filler flap
K25 Spare
K26 Engine fan relay, stage 1, with air conditioning
K27 Rear door washer pump relay
K28 Secondary air injection pump relay
K29 Rear fog lamp relay

Fuses and module box on the front of the right footrest

Number Function A
1 AIRBAG OFF indicator light 7.5
2 Front cigarette lighter (with ashtray light) Up to VIN A289564, X754619:

20

As of VIN A289565, X754620:

15
3 Rear wiper motor 15
4 To VIN A289564, X754619: E-Call control unit ((USA only)) From VIN A289565, X754620: front blower motor 7.5 40
5 Tool dust/air conditioning unit Up to VIN A289564, X754619:

7.5

As of VIN A289565, X754620:

15
6 Inner socket 20
7 Unassigned.
8 Left front seat heated cushion and right front seat heated cushion Not attributed. Up to VIN A289564, X754619:

20

As of VIN A289565, X754620
9 Unassigned.
10 Left front seat adjustment switch Up to VIN A289564, X754619:

30

As of VIN A289565, X754620:

35
11 Right front seat adjustment switch Up to VIN A289564, X754619:

30

As of VIN A289565, X754620:

35
13 Remove existing fuel pump with fuel level sensor (gasoline) 20
17 Heated rear window 25
19 HCS [SRA] pump 30
20 Right high beam As of VIN A289565, X754620:

7,5
21 Left high beam/high beam indicator As of VIN A289565, X754620:

7,5
24 Rear power window motors and lower control panel supply voltage As Of VIN A289565, X754620:

25
25 Windshield electric window motors and voltage supply to lower control panel As Of VIN A289565, X754620:

25
Relays
K1 Seat comfort control relay
K2 Fuel pump relay (gasoline)
K4 Rear window defroster relay
K5 HCS [SRA] pump relay.
K6 Auxiliary high beam relay (from VIN A289565, X754620)
K8 Lower control panel/contact bridge switch (from VIN A289565, X754620)
K9 Relay for term voltage supply. 15