Mercedes-Benz M-Class W163 (1997-2005) – fuse and relay box
Diagrams of fuse boxes and relays – Mercedes-Benz M-Class W163
Applies to vehicles manufactured in the years:
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005.
The cigarette lighter in the Mercedes-Benz M-Class W163 is fuse number 10 in the fuse box in the engine compartment.
Fuse and relay box, rear left engine compartment (up to 08/31/01)
Number |
Description | Amperes [A] |
1 | Internal socket (X58 / 1) | 15 |
2 | Instrument cluster (A1):
Left front turn signal (A1e1); Left front turn signal (E1): Left turn signal (E1e5) Left left rear light (E3): Left turn signal (E3e1) Left Auxiliary Turn Signal (E22 / 1) Inner connection sleeve, circuit L (Z53 / 4) Trailer hitch connection (X52) |
7.5 |
3 | Right Headlight Assembly (E2):
Right high beam (E2e1) |
15 |
4 | Power supply for sliding / tilting roof (SHD), circuit 30:
Sliding / Tilting Roof (SHD) Motor (M12) |
30 |
5 | Left Headlight Assembly (E1):
Left high beam (E1e1) Powder instrument (A1): High beam indicator lamp (A1e3) |
7.5 |
6 | Rear door wiper motor (M6 / 4) | 7.5 |
7 | Combined switch (S4):
Hazard light switch (S6 / 1s1) Windshield washer system switch (S4s4) Wiper switch (S4s5) Wiper motor (M6 / 1) Relay K17: Windshield Wiper Periodic Relay. |
15 |
8 | Transfer case control unit (N78) | 25 |
9 | Instrument cleaning tool (A1);
Number plate lighting: Left license plate light (E19 / 3V); Right rear number plate light (E19 / 4); Number plate light, left spare wheel holder (E19 / 5); License plate lamp, right spare wheel holder (E19 / 6); Cockpit connector bushing, drcuit 58d (Z50 / 1): Left window switch (S21 / 13y); Right window switch (S21 / 14) (light emitting diodes); Left front SIH switch (S51 / 1); right front SIH switch (S51 / 2) (light emitting diodes); Heater / AC Switch (S98) (Light Emitting Diodes); 2 position switch combination (S97 / 6) (light emitting diodes); ESP OFF switch (S76 / 6) (light emitting diodes); Folding and unfolding mirror switch (S50 / 1) (light emitting diode); Electric headlamp leveling switch (SI / 1) (light emitting diode); Rear Window Wiper / Washer Switch (S78) (Light Emitting Diode); Roof switch (S13 / 2) (light emitting diode); Reverse light switch (S16 / 2); Lighting (R3e1); Center console switch group (S21). |
7.5 |
10 | Radio (A2);
Roof connector sleeve, circuit 15R (Z54 / 1): Left sun visor with illuminated mirror (Е14 / 1); Right sun visor with illuminated mirror (E14 / 2); On-board computer control unit (N41); Automatic dimming. Interior rearview mirror (H7); Front cigarette lighter (with ashtray illumination) R3: Heating element (R3r1); Glove box lamp (E13 / 1); Instrument cluster (A1): Airbag indicator and warning lamp (A1e15). |
10 |
11 | Hot foil mass air flow sensor (B2 / 5); Camshaft position sensor (L5 / 1); Fuel injection valves (Y62); For M111: • HFM control module (N3 / 4). |
10 |
12 | Inner connection sleeve, circuit 58L (Z53 / 6):
• Trailer hitch connection (X52); • Left rear light (E3); • Left rear light and parking light (E3e2); Left Headlight Assembly (E1): • Left position and parking light (E1e3); • Left marker lamp (E1e6). |
7.5 |
13 | Roof fastener bushing, circuit 30 (Z54 / 2): • Front dome lamp (with switch-off delay and front reading lamp) (E15 / 2); • Rear interior lamp (E15 / 3); • dome lamp on the rear left side (E15 / 8); • Dome lamp Rear right (E15 / 9); • On-board computer control unit (N41);Instrument cluster (A1): • Seat belt warning light (A1E9); Steering angle sensor (N49); Data interface (X11 / 4). |
10 |
14 | Diesel: Injection control device;Exhaust gas recirculation valve. |
10 |
15 | Inner junction sleeve, circuit 54 (Z52 / 6): Left-hand brake light (E3):• Left brake light (E3e4);Right rear light (E4): • Right brake light (E4e4); • Center high brake light (E21); • Center high mounted brake light, spare wheel holder (E35); • Trailer hitch connection (X52). |
10 |
16 | Diagnostic connector (X11 / 4) Reversing light switch (S16 / 2) Cockpit connector sleeve, circuit 15 (Z50 / 2): • Air conditioning control unit (N19); • Heating / AC switch (S98); • Blower switch (S98s1); • Thermostat (S98p1); • Air recirculation switch, Indicator lamp (S98h1); • Lighting (S98e1); • Lighting switch (S98e2); • Air recirculation switch (S98s2); • Air conditioning switched on indicator light (S98h2); • Lighting switch (S98e2); • Air conditioning switch (S98s3); • Air recirculation flap actuator motor (M39); • Air conditioning control unit (N19). |
15 |
17 | Cargo area junction box (X58 / 4) | 15 |
18 | Trailer hitch connection (X52) | 25 |
19 | M111: HFM control module (N3 / 4); Adjustable Camshaft Timing Solenoid (Y49); Activated charcoal filter shut-off valve (Y58); M112 / 113: Compression fitting 87 M2e (Z7 / 36); • intake manifold reversing valve (Y22 / 5); • EGR switchover valve (Y27); • Air pump vacuum valve (Y32); • O2 lambda probe – left, in front of the catalyst. (G3 / 3); • O2-Right oxygen sensor, in front of the catalyst. (G3 / 4) Purge Control Valve (AKF) (Y58 / 1); O2-Left oxygen sensor, behind the catalyst. (G3 / 5); O2-right oxygen sensor, behind the catalyst. (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 | Inner coupling sleeve, circuit 15 (Z51 / 5) • ETC [EGS] control module (N15 / 3); • Transmission range recognition switch (S16 / 10); • Locking solenoid valve, reserve / parking pawl (Y66 / 1); • Transfer case control (N78); • Traction systems control unit (N47); With ESP: • Steering angle sensor (N49);Instrument cluster (A1) (F1k3) Fuel pump relay;Cruise control button (S40);With M111: HFM-SFI (N3 / 4) control unit; With M112 / 113: Motor electronics control unit (N3 / 10). |
|
23 | Reserve | |
24 | Inner connector sleeve, circuit 58R (Z52 / 4): • Trailer hitch connector (X52); Right Headlight Assembly (E2): • Right Side Lamp and Parking Light (E2e3); Right rear light (E4): • Right rear light and parking light (E4e2); Right side marker lamp (E2e6). |
7.5 |
25 | Right Headlight Assembly (E2): • Right turn signal light (E2e5); Right rear light (E4) • Right turn signal light (E4e1); Right auxiliary turn signal (E22 / 2); Traction system controller (N47); Inner connector sleeve, Circuit R (Z53 / 5): • Trailer hitch connector (X52)Instrument cluster (A1): • Right turn signal lamp (A1e2). |
7.5 |
26 | Connector, circuit 15 with fuse (Z3 / 29): • M111 (T1) ignition coils; • M112 (T1) ignition coils; • M113 (T1) ignition coils. |
15 |
27 | Traction systems control unit (N47) | 40 |
28 | Heated Seats Inner Sleeve (Z53 / 8): Left / Right Heated Seats Supply: • Heated Seats Relay, Stage 1 (K59); • Heated seats relay, stage 2 (K59 / 1); • Heated left front seat cushion (R13 / 1) / Heated right front seat cushion (R13 / 3); • Heated left front seat cushion (R13 / 2) Heated right front seat cushion (R13 / 4). |
20 |
29 | Switch group in the center console (S21): • Right windscreen switch (S21s2); • Right windshield motor (M10 / 4); • Left rear window switch (S21s3); Switch combination, power windows, rear center console (S21 / 15): • Left rear window switch (S21 / 15s1); • Electric window motor: rear left (M10 / 5); Relay 16: Right front power window (F1k16). |
30 |
30 | Center console switch group (S21): • Left windshield switch (S21s1); • Right rear window switch (S21s4); Switch combination, power windows, rear center console (S21 / 15): • Right windscreen switch (S21 / 15s2); Relay 18: Left front power window (F1k18). |
30 |
31 | Center console switch group (S21): • Switch, electric adjustment of outside mirror (S50); Cockpit connector sleeve, tilting window (Z50 / 13): Rear tilting window: • Left tilting window switch (S21 / 13); • Right tilt window switch (S21 / 14); Sliding / tilting roof switch (S13 / 2). |
15 |
32 | Right Front Seat Adjustment Switch (S23) Right Front Seat Adjustment Motor Assembly (M26) • Forward / Reverse motor (M26 / m1); • Motor up / down rear (M26 / m2); • Motor up / down front (M26 / m3); • Backrest motor front / rear (M26 / m5). |
30 |
33 | Left Front Seat Adjustment Switch (S22) Seat Adjustment Motor Group: Left Front (M25). |
30 |
34 | Left Headlamp Assembly (E1): Left Low Beam (E1e2) (S1 / 1 Electric Headlamp Range Control); Left headlight range adjustment motors (E1m1), right headlight range adjustment motors (E1m2). |
7.5 |
35 | Right front lamp unit (E2): Right low beam (E2e2). |
7.5 |
36 | Rear window heating | 25 |
37 | Fanfare indicators:
• Two-tone signaling system (H1); |
20 |
38 | Fuel pump with fuel level sensor (M3 / 3) | 20 |
39 | Reserve | |
40 | Vacuum pump (M 612.963) | 25 |
41 | Circulation pump relay (F1k19)
Sleeve connecting the right engine compartment, pump (Z57 / 2): Diesel: |
25 |
42 | Central locking: • Central locking motor of the left front door (M14 / 6); • Central locking motor of the right front door (M14 / 5); Connecting sleeve, inside central locking (Z53 / 1): • Rear door central locking motor (M14 / 7); • CL [ZV] motor of the left rear door (M14 / 8); • CL [ZV] engine of the rear right door (M14 / 9); • CL [ZV] fuel filler flap motor (M14 / 10). |
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 connector sleeve, fan (Z56 / 2); • Left auxiliary fan (M4m1); • Right additional fan (M4m2). |
30 |
45 | Electric Air Pump (M33) | 40 |
46 | Cockpit connector bushing, rear fog lamp (Z50 / 10): • 2-position switch combination (S96 / 7) (rear fog light LED); Left rear light (E3), right rear light (E4);• Left rear fog light (E3e5), right rear fog light (E4e5);Trailer hitch connection (X52). |
7.5 |
47 | Left connector in the engine compartment, auxiliary headlight (Z56 / 4) Left front headlight (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 of relay, license plate light / instrument cluster | |
K6 | Electronic Stability Program (ESP) / Stop Lamp Off Relay | |
K7 | Right turn signal relay | |
K8 | Starter relay (solenoid switch, terminal 50) | |
K9 | Relay circuit 58R (right floor lamp) | |
K10 | Reserve | |
K11 | Delayed Relay Circuit 15 (engine 612.963 only) | |
K12 | Circuit 15 of the relay | |
K13 | Relay circuit 58L (left floor lamp) | |
K14 | Comfort relay | |
K15 | Central locking relay, tailgate unlock | |
K16 | Right windshield relay | |
K17 | Front wiper relay, intermittent | |
K18 | Left windshield relay | |
K19 | Heater circulation pump relay and box fan fuse and relay box | |
K20 | Central locking relay: Lock all doors | |
K21 | Heater blower relay | |
K22 | Dipped beam and contact relay | |
K23 | Central locking relay: Unlock the front passenger door, rear door and the fuel tank flap | |
K24 | Central locking relay: Unlocking the driver’s door | |
K25 | ETS / ESP hydraulic unit relay | |
K26 | Engine fan relay, stage 1, with air conditioning | |
K27 | Reserve | |
K28 | Secondary air injection pump relay | |
K29 | Rear fog lamp relay |
Fuse and relay box, rear left engine compartment (as of 09/01/01)
Number |
Description | Amperes [A] |
1 | Not assigned | – |
2 | Instrument cluster (A1):
• Left turn signal (A1e1) |
7.5 |
3 | Not assigned | – |
4 | Power supply for the sliding / tilting roof (SHD), circuit 30: • Motor for the sliding / tilting roof (SHD) (M12) |
20 |
5 | Not assigned | |
6 | Seat heater | 20 |
7 | Combination switch (S4):
• Hazard flasher switch (S6 / 1s1) |
30 |
8 | Transfer case control unit (N78) / E-Call control unit (A35 / 8) | 25 |
9 | Instrument cluster (A1) License plate light: • Left rear door license plate light (Е19 / 3), right rear right door license plate light (E19 / 4), • License plate light, left spare wheel holder (E19 / 5), light license plate, right spare wheel holder (E19 / 6) Cockpit connector sleeve, circuit 58d (Z50 / 1): • Left window switch (S21 / 13), right window switch (S21 / 14) (light emitting diodes) • Left front SIH switch (S51 / 1), right front SIH switch (S51 / 2) (light emitting diodes) • 2-position switch combination (S97 / 6) (light emitting diodes) • ESP OFF switch (S76 / 6) (light emitting diodes) • Outside mirror switch, folding and unfolding (S50 / 1) (light emitting diode) • Electric headlamp leveling switch (S1 / 1) (light emitting diode) • Wiper / washer switch rear window (S78) (light emitting diode) • tilt and slide switch (S13 / 2) (light emitting diode) • reversing lamp switch (S16 / 2) • lighting (R3e1) • center console switch unit (S21) |
7.5 |
10 | Radio (A2) Roof bracket bush, circuit 15R (Z54 / 1) • Lett sun visor with illuminated mirror (Е14 / 1) • Right sun visor with illuminated mirror (E14 / 2) • Automatic dimming rearview mirror (H7) Front cigarette lighter with ashtray illumination (R3) • Heater element (R3r1) Glove box lamp (E13 / 1) Instrument cluster (A1): • Airbag indicator and warning lamp (A1e15) |
10 |
11 | Hot foil mass air flow sensor (B2 / 5) Camshaft position sensor (L5) Fuel injection valves (Y62) For M111: • HFM control module (N3 / 4) |
15 |
12 | Inner junction sleeve, circuit 58L (Z53 / 6) • Trailer hitch connector (X52) • Left tail light (E3):• Left rear light and parking light (E3e2)Left front lamp assembly (E1): • Left parking and parking lamp (E1e3)) • Left clearance lamp (E1e6) |
7.5 |
13 | Roof bracket bush, circuit 30 (Z54 / 2) • Front dome lamp (with switch-off delay and front reading lamp) (E15 / 2) • Rear interior lamp (E15 / 3) • Rear left dome lamp (E15 / 8) • Rear right corner dome lamp (E15 / 9) • Left front footwell lights (E17 / 16) • Right front footwell lights (E17 / 15) • Trip computer control unit (TRIP) (N41) Sprayer (A1): Steering Angle Sensor (N49) Datalink connector (X11 / 4) |
10 |
14 | Engine controller (diesel);
Injection control device; Exhaust gas recirculation valve. |
25 |
15 | Inner junction sleeve, circuit 54 (Z52 / 6) Left-hand brake lamp (E3)• Left brake light (E3e4) Right rear light (E4): • Right brake light (E4e4) • Center high stop light (E21) • Center high-mounted brake light, spare wheel holder (E35) • Stop light switch |
10 |
16 | Diagnostic connector (X11 / 4) Reversing light switch (S16 / 2) Cockpit connector sleeve, circuit 15 (Z50 / 2) • Air conditioning control unit (N19) • Heater / AC switch (S98) • Blower switch (S98s1) • Thermostat ( S98p1) • Lighting (S98el) • Lighting (S98e2) • Air recirculation switch (S98s2) • Air conditioning switch (S98s3) • Air recirculation flap actuator motor (M39) Instrument cluster (A1) |
15 |
17 | Cargo area junction box (X58 / 4) | 20 |
18 | Trailer hitch connection (X52) | 25 |
19 | M111: HFM Control Module (N3 / 4) Adjustable Camshaft Timing Solenoid (Y49) Activated Carbon Filter Shut- Off Valve (Y58) M112 / 113: Pinch Connector 87 M2e (Z7 / 36) • EGR Changeover Valve (Y27) • Pump Vacuum air valve (Y32) • O2-Left oxygen sensor, in front of catalyst. (G3 / 3) • O2-Right oxygen sensor, in front of the catalyst. (G3 / 4) Purge Control Valve (Y58 / 1) O2 – Left Oxygen Sensor, Downstream of Catalyst. (G3 / 5) O2-right oxygen sensor, behind the catalyst. (G3 / 6) |
15 |
20 | Not assigned | – |
21 | Radio (A2); Mobile phone; Voice Control System (VCS). |
15 |
22 | Inner coupling sleeve, circuit 15 (Z51 / 5) • ETC [EGS] control module (N15 / 3) • Transmission range recognition switch (S16 / 10) • Locking solenoid valve, standby / parking pawl (Y66 / 1) • Transfer case control (N78) • Traction systems control unit (N47) With 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 control (N3 / 10) Suction fan control (N65 / 2) on models 163.174 / 175 Rain sensor (B38) |
15 |
23 | Headlamp range adjustment control module (N71) | 15 |
24 | Inner connector sleeve, circuit 58R (Z52 / 4) • Trailer hitch connector (X52) Right front headlight assembly (E2) • Right parking and parking light (E2e3) Right rear light (E4) • Right rear light and parking light (E4e2) Right side marker light (E2e6) |
7.5 |
25 | Right front headlight (E2) • Right turn signal (E2e5) Right rear headlight (E4) • Right turn signal (E4e1) Right auxiliary turn signal (E22 / 2) Traction system controller (N47) Inner junction sleeve, R circuit (Z53 / 5): • Trailer hitch connection (X52) Cleaning tool (A1)• Right turn signal Indicator lamp (A1e2) |
7.5 |
26 | Connector terminal 15, fuse (Z3 / 29) • M111 (T1) ignition columns • M112 (T1) ignition collectors • 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 connector bushing, ventilation window (Z50 / 13) • Left window switch (S21 / 13) • Right window switch (S21 / 14) Roof tilt and slide switch (S13 / 2) Mirror lamps |
15 |
32 | Not assigned | – |
33 | Not assigned | – |
34 | Not assigned | – |
35 | Not assigned | – |
36 | Mirror heater | 10 |
37 | Two-color signaling system (H1) | 20 |
38 | Fuel pump with fuel level sensor (M3 / 3) only on model 163.128 | 15 |
39 | Not assigned | – |
40 | Sound system | 25 |
41 | Not assigned | – |
42 | Central locking: • Left front door central locking motor (M14 / 6) • Right front right door central locking motor (M14 / 5) Inner central locking connector socket, motor 1 (Z53 / 1) • Rear door central locking motor (M14 / 7 ) • CL [ZV] engine of the left rear door (M14 / 8) • CL [ZV] engine of the rear right door (M14 / 9) • CL [ZV] fuel filler flap engine (M14 / 10) |
20 |
43 | Blower motor (М2) at the rear | 20 |
44 | Rear door 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 connector sleeve, fan (Z56 / 2) • Left auxiliary fan (M4m1) • Right auxiliary fan (M4m2) |
40 |
45 | Electric Air Pump (M33) | 40 |
46 | Cockpit connector bush, rear fog light (Z50 / 10) • Left rear fog light (E3e5), right rear fog light (E4e5) Trailer hitch connector (X52) |
7.5 |
47 | Additional headlamp connector sleeve, right side engine compartment (Z56 / 4) Left front headlight (E1) • Left fog lamp (E1e4) • Left auxiliary high beam (E1e7), right auxiliary high beam (E2e7) Right front headlight (E2) • Right fog light (E2e4) |
15 |
48 | Beep (H3) | 20 |
Relays | ||
K1 | Heated mirrors relay | |
K2 | Fan relay module (K39) | |
K3 | Electric fuel pump relay (except engine 612.963) | |
K4 | Left turn signal relay | |
K5 | Circuit 58 of relay, license plate light / instrument cluster | |
K6 | Stop lamp relay | |
K7 | Right turn signal relay | |
K8 | Starter relay (solenoid switch, terminal 50) | |
K9 | Relay circuit 58R (right floor lamp) | |
K10 | Reserve | |
K11 | Relay 15 circuit with delay (engines 612.963 and 628.963 only) | |
K12 | Circuit 15 of the relay | |
K13 | Relay circuit 58L (left floor lamp) | |
K14 | Comfort relay (windows / roof / mirrors) | |
K15 | Central locking relay, tailgate unlock | |
K16 | Reserve | |
K17 | Front wiper relay, intermittent | |
K18 | Reserve | |
K19 | Reserve | |
K20 | Central locking relay: Lock all doors | |
K21 | Reserve | |
K22 | Reserve | |
K23 | Central Locking Relay: Unlock front passenger door, rear door | |
K24 | Central locking relay: Unlock the driver’s door and the fuel filler flap | |
K25 | Reserve | |
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, front right footwell
Number |
Description |
Amperes [A] |
1 | AIRBAG OFF indicator light | 7.5 |
2 | Front cigarette lighter (with ashtray illumination) | For VIN A289564, X754619:
20
From VIN A289565, X754620: 15
|
3 | Tailgate Wiper Motor | 15 |
4 | To VIN A289564, X754619: E-Call control unit (only (USA)) From VIN A289565, X754620: front blower motor |
7.5 40 |
5 | Vacuum cleaner / air conditioning | For VIN A289564, X754619:
7.5
From VIN A289565, X754620: 15
|
6 | Internal socket | 20 |
7 | Not assigned | – |
8 | Left front seat heated cushion and right front seat heated cushion;
Not assigned. |
For VIN A289564, X754619:
20 From VIN A289565, X754620
|
9 | Not assigned | – |
10 | Left front seat adjustment switch | For VIN A289564, X754619:
30
From VIN A289565, X754620: 35
|
11 | Right front seat adjustment switch | For VIN A289564, X754619:
30
From VIN A289565, X754620: 35
|
13 | Remove existing fuel pump with fuel level sensor (petrol) | 20 |
17 | Heated rear window | 25 |
19 | HCS pump [SRA] | 30 |
20 | Right high beam | From VIN A289565, X754620:
7.5
|
21 | Left high / high beam indicator | From VIN A289565, X754620:
7.5
|
24 | Rear window motors and power to the lower control panel | From VIN A289565, X754620:
25
|
25 | Front window motors and ground control power supply | From VIN A289565, X754620:
25
|
Relays | ||
K1 | Seat comfort control relay | |
K2 | Fuel pump relay (gasoline) | |
K4 | Rear window defroster relay | |
K5 | HCS pump relay [SRA] | |
K6 | Auxiliary high beam relay (from VIN A289565, X754620) | |
K8 | Lower control panel / switch contact bridge (from VIN A289565, X754620) | |
K9 | Relay for voltage supply term. 15 |