Mercedes-Benz C-Class W202 (1993-2001) – fuse box

Mercedes-Benz C-Class w202 (1993-2001) – fuse box diagram

Year of production: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001.

The cigarette lighter fuse (power socket) on the Mercedes C-Class w202 (1993-2001) is fuse 2 in the fuse box in the engine compartment.

Main fuse box in engine compartment (until 30/11/94)

Mercedes-Benz C w202 – fuse box diagram – main box in the engine compartment
Number Amperes [A] Description
1 7.5 Right low beam
2 15 Front cigarette lighter  with ashtray lighting;

Glove box lamp with switch;

Radio (until 09/93).

3 10 Seat belt warning control module (USA);

Automatic heater button control module;

Automatic air conditioning (AC) button control module;

Air conditioning control button (tempomatic);

Time limit relay for the use of residual heat of the engine;

Radio;

Seat belt control module and vehicle speed warnings.

4 15 Hazard lights with trailer;

Instrument cluster;

Timer;

Warning buzzer;

Taxi rooftop sign.

5 20 Seat belt and vehicle speed warning control module;

Radio;

Automatic heater button module;

Automatic air conditioning (AC);

Air conditioning button control module (tempmatic);

Control module button residual heat use motor relay term;

Horn.

6 7.5 Direction indicators with a trailer
7 7.5 Left low beam
8 7.5 Rear window defroster switch
9 7.5 Cigarette lighter illumination;

Number plate light;

Instrument cluster, instrument illumination.

10 Reserve
11 7.5 Auxiliary fan relay, 1st and 2nd stages (K9);

Air conditioning (automatic) / air conditioning (tempmatic);

Automatic air conditioning (AC) control button;

Air conditioning control module (tempmatic);

Push button control module.

12 10 Stop light switch;

Trailer stop lamp;

Braking signal for ABS;

Braking signal for ASR;

Braking signal for ASD;

Brake signal for cruise control;

Cruise control module;

Instrument cluster, bulb failure indicator lamp;

Outdoor lamp failure monitoring module.

13 30 Auxiliary fan relay, 1st and 2nd stage
14 30 Heating systems recirculation unit:

Blower motor;

Blower regulator.

15 30 Combination switch:

Headlight flasher;

Headlight cleaning system;

Windshield washer pump;

Wiper motor;

Combined relay.

16 30 Combined relay:

Rear window defroster control

17 40 Air injection relay, 104 HFM-SFI engine
18 7.5 Via the exterior light failure monitor:

Left parking light / tail light;

Left front side marker lamp;

Left rear marker lamp;

Trailer rear light.

19 7.5 Right high beam
20 10 Electric switch for rear window blinds;

Radio;

Heated front seat (HS) control module.

21 20 Automatic antenna
7.5 Radio
22 10 Right and left fog light
23 15 Overvoltage protection relay;

Relay for disabling the kick-down function;

Data link connector;

Clutch pedal switch, idle speed control;

Purge control valve;

Pre-glow timer;

Engine speed mixture preparation control module;

Cruise control switch;

Camshaft adjuster;

Intake manifold heater relay;

Tank vent valve;

Variable-resonance intake manifold diverter valve.

24 10 Headlight cleaning system;

Via the exterior light failure monitor:

Right parking light, tail light;

Right front clearance lamp;

Right rear marker lamp;

Trailer rear light.

25 7.5 Left high beamHigh beam indicator light
26 7.5 Telephone transmitter / receiver;

Handheld relay;

Convenient control module;

SRS failure indicator light.

27 7.5 Left front door entry / exit light;

Right front door entry / exit light;

Data link connector.

28 7.5 Rear fog lamp with a trailer
29 15 Left / Right Heated Windshield Washer Nozzle;

Adjusting the exterior mirror with heated mirrors:

Outside mirror / interior mirror switch (S50);

Mirror heater;

Reverse light switch, manual gearbox;

Starter lockout / reverse light switch;

Automatic Transmission.

30 10 Headlight cleaning system:

Headlight washer relay;

Left and right headlight wiper motor.

31 Reserve
32 7.5 Test connector for Diagnostic Module II (USA);

Diagnostic module II (USA).

33 15 Front dome lamp with switch-off delay and reading lamp

Rear dome lamp;

Trunk lamp;

Left and right sun visor with illuminated cosmetic mirror;

Pneumatic equipment, central locking.

34 10 Outside rearview mirror with folding / unfolding function;

Headrest release valve with switch-off delay;

Daytime running lamp control module.

35 7.5 Pneumatic system equipment, central locking;

Front dome lamp with switch-off delay and reading light;

Immobilizer relay;

ATA control module with / without IR remote control;

Trailer recognition control module.

Main fuse box in engine compartment (1.12.94-31.5.97)

from 1.12.94 to 31.8.96

Mercedes-Benz C w202 – fuse box diagram – main box in the engine compartment

from 1.9.96 to 31.5.97

Mercedes-Benz C w202 – fuse box diagram – main box in the engine compartment
Number Amperes [A] Description
1 7.5 Direction indicator lamps;

Lamps, taximeter, taxi (up to 31.8.95).

2 20 from 1.12.94 up to 31.8.95:

Horn;

Automatic heating;

Hot water circulation pump;

Automatic heater button control module

Duo valve;

Automatic air recirculation heater with residual heat utilization system:

Automatic air recirculation heater control unit;

Aspirator blower ;

Air conditioning button control module (tempmatic);

Automatic air conditioning (AC) button control module;

Daytime running light control module;

Seat belt warning control module;

Seat belt and vehicle speed control module.

from 1.9.95 to 31.5.97:

Horn;

Air conditioning (Tempmatic):

Suction type electric fan control module;

Air recirculation valve Air conditioning (Tempmatic) or Air conditioning (Automatic);

Suction type electric fan control module;

Daytime running lights control module.

15 from 1.9.95 to 31.5.97:

Horn;

Automatic heater: circulating air valve;

Automatic heater;

Daytime running lights control module.

3 10 from 1.12.94 to 31.8.95: 

Instrument cluster;

Outdoor lamp failure monitoring module;

Stop lamp switch:

Stop light;

Trailer stop lamp;

Brake signal for cruise control;

Braking signal for ABS;

Braking signal for ASR;

ygnał inhibition of ASD;

Cruise control module / stop lamp switch with intermediate bridge.

7.5 from 1.9.95 to 31.8.96: 

Instrument cluster;

Outdoor lamp failure monitoring module;

Taximeter, taxi.

15 as of 1.9.96 to 31.5.97: 

Instrument cluster;

Outdoor lamp failure monitoring module;

Stop lamp switch:

Stop lamps;

Trailer stop lamps;

Center high mounted brake light;

Traction system control module;

Heated windshield washer nozzles;

Taximeter.

4 7.5 Right low beam
15 ATA dipped beam headlamp
5 7.5 Left low beam
6 7.5 Right high beam
7 7.5 Left high beam;

High beam indicator;

8 10 Left fog light;

Right fog lamp.

9 40 up to 31.8.95:

Blower regulator, air conditioning (automatic) / air conditioning (tempmatic)

30 from 1.9.95 to 31.5.97:

Blower regulator, air conditioning (automatic) / air conditioning (tempmatic)

10 15 Hazard lights with trailer;

Instrument cluster;

Taxi rooftop sign.

11 40 Rear window defroster:

Combination relay (turn signal / warning signal, heated rear window, wiper motor)

12 20 up to 31.8.95:

Automatic air recirculation heater with residual heat utilization system:

Hot water circulation pump;

Fresh / recirculated air flap diverter valve;

Double valve;

Air conditioning button control module (tempmatic);

Automatic air conditioning (AC) button control module;

Seat belt warning control module;

Automatic air recirculation heater with residual heat utilization system:

Time relay for the utilization of the residual heat of the engine;

Cigarette lighter (customer option).

10 from 1.9.95 to 31.5.97:

Lamp warning buzzer;

Automatic heater with air recirculation and residual heat utilization system;

Air conditioning (tempmatic);

Air conditioning (automatic);

Minibar (customer option);

Cigarette lighter (customer option).

15 starting from 9.01.95 to 31.05.97 up (Only when lighter is reconnected to t. 30):

Lamp warning buzzer;

Automatic heater with air recirculation and residual heat utilization system;

Air conditioning (tempmatic);

Air conditioning (automatic);

Minibar (customer option);

Cigarette lighter (customer option).

13 40 Combined relay:

Wiper motor (interval circuit);

Rear window defroster control (from 1.9.96 to 31.5.97);

Rear window defogger (from 1.9.95 to 31.8.96):

Rear window defroster switch;

Combination switch:

Headlamp blinker;

Windshield wiper motor;

Windshield washer pump;

Wiper motor;

Wiper motor (interval circuit).

14 15 Front cigarette lighter with ashtray illumination;

Lamp in the glove box with a switch;

Rear window defroster switch (as of 1.12.94 to 31.8.95);

Garage door opener (USA; as of 1.9.96 to 31.5.97);

Rear heated seat relay (customer option).

15 15 Right parking lamp;

Right rear lamp;

Right front side marker lamp;

Rear right side marker lamp;

Right trailer rear lamp;

Instrument cluster;

Headlamp cleaning system connected;

Number plate lighting;

Cigarette lighter illumination.

16 7.5 Left parking light;

Left tail lamp;

Left front side marker lamp;

Left rear side marker lamp;

Left trailer rear lamp.

17 7.5 Rear fog light;

Trailer rear fog lamp.

18 40 up to 31.8.95:

Automatic heater:

Air volume switch, blower motor;

Automatic air recirculation heater with residual heat utilization system:

Air volume switch, blower motor.

7.5 from 1.12.94 to 31.8.95:

Air conditioning button control module (tempmatic);

Automatic air conditioning (AC) button control module;

from 1.9.95 to 31.8.96:

Automatic heater:

Air volume switch, blower motor;

Automatic air recirculation heater with residual heat utilization system:

Air volume switch, blower motor;

Air conditioning (temp.):

Blower, auxiliary fan;

Air conditioning (automatic):

Blower, auxiliary fan;

as of 1.9.96 to 31.5.97:

Automatic heater:

Blower;

Air conditioning button control module (Tempmatic A / C);

Blower, auxiliary fan;

Air conditioning button control module (automatic air conditioning);

Blower, auxiliary.

19 15 from 1.9.95 to 31.5.97:

Cargo Junction Box, T.

20 7.5 Airbag malfunction indicator:

SRS failure indicator lamp;

Airbag emergency tensioning retractor control module;

Convenient relay.

21 15 Radiotelephony transmitter / receiver;

Heated front seat (HS) control module.

22 10 Electric switch for rear window blinds
23 15 Front dome lamp with switch-off delay and reading lamp;

ATA control module;

Infrared remote central locking control module;

Interior rear view mirror, dimmable:

Electronic dimming interior mirror;

ATA:
Immobilizer relay;
Rear head restraint release:
Head restraint release valve with switch-off delay;
Socket, trailer hitch, 13-pin.

24 15 Left / right outside mirror adjustment:

Mirror heating;

Outside rearview mirror / interior mirror switch;

Reverse lamp switch;

Left / right outside mirror adjustment with folding / unfolding function:

Mirror heating;

Outside rearview mirror / interior mirror switch;

Outside rearview mirror with folding / removing function, mirror folding motors

Orthopedic backrest.

25 20 Front heated seat (HS) control module
26 15 Radiotelephony transmitter / receiver
27 15 Front dome lamp with switch-off delay and reading lamp;

Rear dome lamp;

Trunk lamp;

Infrared remote central locking control module;

Pneumatic equipment, central locking.

28 40 By air injection relay:

Electric air pump

29 30 Auxiliary fan ECE Auxiliary fan
(USA, Japan)
30 15 as of 1.12.94 to 31.8.95:
Overvoltage protection relay;Glow time limited relay;Kick-down cut-off relay;

Rinse control valve;

Solenoid actuator, camshaft timing adjustment;

Clutch pedal switch, idle speed control;

Tank vent valve;

Variable-resonance intake manifold valve.

30 as of 1.9.95 to 31.8.96:
Overvoltage protection relay;Glow time limited relay;

Solenoid actuator, camshaft timing adjustment;

Rinse control valve;

Kick-down cut-off relay;

Stop lamp switch:

Stop light;

Trailer stop lamp;

Brake signal for cruise control;

Braking signal for ABS;

Braking signal for ASR;

Braking signal for ASD;

Cruise control module;

Tank vent valve;

Variable-resonance intake manifold diverting valve, 6 cylinders.

31 10 Heated Left / Right Windshield Washer Nozzle;

Water heater for windshield washers;

Starter lockout / reverse lamp switch;

Automatic gearbox;

Auxiliary fan relay, 1st and 2nd stage (up to 31.8.95).

32 7.5 Data link connector;
Diesel shut-off valve (up to 31.8.95).
33 7.5 Test connector for Diagnostic Module II (USA);
Diagnostic module II (USA).
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The main fuse box in the engine compartment (as of 5/31/97)

Mercedes-Benz C w202 – fuse box diagram – main box in the engine compartment
Number Amperes [A] Description
1 5 Front Seat Heated (HS) Control Module;

Comfort left front electromagnetic seat belt (up to 5/31/98);

Comfortable right front electromagnetic seat belt (up to 31.5.98);

Seat adjustment relay (as of 1.6.98 to 31.5.99);

Automatic seat belt fastening function (as of 1.6.

2 5 Emergency tensioning retractor (ETR) control module with airbag (AB);

Automatic child seat recognition sensor (ACSR);

Left side airbag sensor;

Right side airbag sensor.

3 15 as of 1.6.97 to 31.5.99:

Radio;

CTEL transmitter receiver for MB D-net telephone or “Standard” D-net telephone (up to 5/31/98);

CTEL interface for “Handy” D-net telephone (up to 5/31/98);

Voice control system (from 1.6.98 to 31.5.99).

5 as of 1.6.99:
Mobile / Handy (USA; as of 1.6.99);
CTEL transmitter and receiver with fixed installation;
Mobile phone interface with the “Handy” telephone;
Voice Control System (VCS).
4 5 Instrument Cluster:

Airbag Indicator and Warning Lamp, Supplemental Safety System (SRS)

5 15 as of 1.6.97 to 31.5.98: 

Rear window sunblind switch (center console);

Navigation processor;

Cargo space socket (model 202 T-model).

20 as of 1.6.98: 

Rear window sunblind switch (center console);

Center console: Outside rearview mirror switch (with fold-in / out function).

6 7.5 as of 1.6.97 to 31.5.98: Center
console: Outside rearview mirror switch (with fold / unfold function);as of 1.6.98 to 31.5.99:

Autopilot System (APS);

Navigation processor;

CTEL transmitter and receiver with D network telephone, permanent installation;

Mobile phone interface with the “Handy” D network;

Emergency call system, TELE POMOC;

as of 1.6.99:

Emergency call system.

7 7.5 Lower control panel:

Outside rearview mirror adjustment;

Left / right electric window;

Switch lighting;

Reverse gear recognition;

Trunk lid remote control;

Autopilot System (APS) (up to 31.5.99);

CTEL transmitter and receiver with D network telephone, permanent installation (from 1.6.98);

Mobile phone interface with “Handy” D network (as of 1.6.98);

Emergency call system, TELE AID (from 1.6.98 to 31.5.99);

Navigation processor (as of 1.6.98 to 31.5.99).

8 30 Driver side front door control module:

Exit lamps;

Outside mirror adjustment, defrosting;

Window power supply;

Seat memory switch;

Switch lighting;

Central lock;

Convenient closure.

9 25 Overhead control panel:

Sliding / lifting roof;

Front / rear dome lamp;

Rain sensor;

Convenient closure;

Make-up mirror;

Interior rearview mirror dimmer;

Internal RF receiver;

Outside rearview mirror dimmer;

Switch lighting;

Garage door opener (USA).

10 15 Radio;

CTEL transmitter receiver for MB D-net telephone or “Standard” D-net telephone or CTEL interface for “Handy” D-net telephone (up to 5/31/98).

11 20 Heated front seat
12 25 Sound system: left / right audio power amplifier
13 15 Headlamp range adjustment control module (with xenon headlamp);

Reversing lamp (for switch) (as of 1.6.98).

14 5 Parktronic system (PTS)
Taximeter
15 15 as of 1.6.97 to 31.5.99 (T models):

Rear wiper;

as of 1.6.99: 

Stop lamp (NO contact):

Stop lamps;

Traction systems control module;

Third brake light;

Trailer stop lamps.

16 5 from 01/06/97 to 31/05/99:
Sensor angle of  the steering wheel, the electronic stability program (ESP);as of 1.6.99:
Rear window wiper (T model).
17 30 Driver’s side rear door control module:

Comfortable closing;

Switch lighting;

Central lock;

Exit lamps;

Outside rearview mirror adjustment, defrosting;

Window power supply;

Seat memory switch.

18 25 Flasher with trailer;

Hazard warning lights with trailer (up to 31.5.98);

Auxiliary direction indicators (up to 5/31/98);

Continuous positive trailers (up to 5/31/98).

19 10 Instrument cluster;

Outdoor lamp failure monitoring unit;

Daytime running light control module;

Stop lamp (normally open contacts; up to 31.5.99):

Stop lamps;

Traction system control module;

Center high mounted brake light;

Trailer stop lamps.

20 15 Automatic heater (HEAT):

Heater button control module;

Temperature sensor in the car;

Fresh / recirculated air flap diverter valve;

Air conditioning (Tempmatic):

Air conditioning button control module (Tempmatic A / C);

Temperature sensor in the car;

Fresh / recirculated air flap diverter valve;

Air conditioning (automatic):

Air conditioning button control module (automatic air conditioning);

Emission sensor (up to 5/31/98).

21 15
22 10 Combination switch:

Windshield wiper;

Headlamp blinker;

Windshield washer pump;

Direction indicators, turn signal indicator, steering.

23 15 Front cigarette lighter (with ashtray illumination);

Lamp in the glove box;

Garage door opener (USA; up to 5/31/98).

24 15 Right parking lamp;

Right rear lamp;

Front and rear right side marker lamps;

Right trailer rear lamp;

Instrument cluster;

Number plate lighting;

Cigarette lighter illumination;

Headlight cleaning system.

25 7.5 Left parking light;
Left rear light;
Front and rear left side marker lamps;
Left rear trailer light.
26 7.5 Rear fog light;

Rear fog lamp, trailer

27 15 Electronic steering column lock:

Electric steering column (ESC) control module coil.

28 10 as of 1.6.97 to 31.5.99:
Sign on the roof (taxi; up to 31.5.98)
Lighter;
Mini bar.
5 as of 1.6.99:

Steering angle sensor, with Electronic Stability Program (ESP)

29 30 Blower motor;

as of 1.9.96:

Auxiliary fan (engines 111.943 / .973, 112, 604, 605 with code 581a).

40 as of 1.9.96:

Electric suction fan (engine 111 with code 581a)

30 10 Instrument cluster;

Automatic heater (HEAT):

Heater button control module;

Coolant circulation pump;

Double valve;

Air conditioning (Tempmatic):

Air conditioning button control module (Tempmatic A / C);

Coolant circulation pump;

Double valve;

Air conditioning (automatic):

Air conditioning button control module (automatic air conditioning);

Emission sensor (up to 5/31/98).

31 7.5 up to 5/31/98:   Right low beam
15 as of 1.6.98:   Right low beam
32 7.5 up to 5/31/98:   Left low beam
15 as of 1.6.98:   Left low beam
33 7.5 Right high beam
34 7.5 Left high beamHigh beam indicator
35 15 Left and right fog lights;

Headlamps off (USA).

36
37 25 as of 1.6.98:   Heating amplifier
40 as of 1.6.99:   For ESP return pump (Bosch) (M112, M113)
38 30 Auxiliary fan (engines 111, 112, 601, 604, 605 with automatic air conditioning)
40 380W electric fan (111 motor with automatic air conditioning), M112 USA / Japan
60 550 W electric suction fan for engines 112, 611 with automatic air conditioning
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Mercedes-Benz C-Class w202 – fuse box diagram – engine compartment
Number Amperes [A] Description
39
40 10 Horn
41 15 Turn on the beacons;

Turn on the signal indicator;

Horn;

Windshield wiper;

Windshield washer pump;

Rain sensor;

Rear window defroster;

Engine fan;

System of utilization of residual heat of the engine;

Headlight cleaning system;

Emergency lights.

42 7.5 Windshield washer water heater
43 7.5 Windshield washer pump
44 40 Windshield wiper;

Rain sensor.

45 15 Headlight cleaning system
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Fuse box in the luggage compartment (until 30/11/94)

Mercedes-Benz C-Class W202 – fuses diagram – trunk
Number Amperes [A] Description
1 25 Left front electric seat switch:
Headrest;
Support;.
Seat height
2 25 Electrically adjustable right front seat switch:

Seat height;

Front / rear seat.

3 25 Left front electric seat switch:

Seat height;

Front / rear seat.

4 25 Right front seat electrically adjustable switch:
Headrest;
Support;
Seat height.
5 25 Sound system:

Amplifier control module (left / right speakers)

6 7.5 CD player with change
7 30 Convenient control module:

Electric windows;

Tilt and slide roof;

Rear windows.

8
9 7.5 Comfort relay;

Convenience control module:

Power windows, tilt and slide roof.

10 30 Convenient control module:

Electric windows, tilt and slide roof;

Electrically operated front windows.

11 7.5 ATA control module;

Towing sensor control module.

12 20 Front heated seat (HS) control module
13 20 Tilt and slide roof
14
15
16
17 7.5 Telephone transmitter / receiver
18 25 Socket, Trailer Connector, 13 Pin;

Fuel pumps relay.

19

Fuse box in the luggage compartment (  as of   1.12.94)

Mercedes-Benz C-Class W202 – fuses diagram – trunk
Number Amperes [A] Description
1 25 up to 31.5.97:

Sound system: Amplifier (left / right speaker);

as of 1.6.97:

Fuel pump.

2 7.5 Injection system
30 as of 1.6.97:
Pneumatic equipment (PSE) equipment:
Central locking (pump);
Reflector, terminal 56b for anti-theft alarm (ATA).
3 20 up to 31.5.97:
ATA control module;Towing sensor control module;Infrared remote control (from 1.12.94 to 31.8.96).
30 as of 1.6.97:Driver’s side front door control module
4 7.5 from 1.12.94 to 31.8.96:Automatic antenna, sedans
40 as of 1.6.97:

Pneumatic system equipment (PSE):

Defroster rear window;

Central lock;

The signal will sound anti-theft alarm (ATA).

5 7.5 up to 31.5.97: 

Left front door entry / exit lamp;

Entry / exit lamp on the right entrance door.

30 as of 1.6.97:   Driver side rear door control module
6 25 up to 31.5.97:   Socket, trailer coupling, 13-pin
5 as of 1.6.97:

Rear dome lamp;

Trunk lamp;

Seat adjustment relay;

Rear dome lamp (taxi).

7 30 up to 31.5.97:

Comfort control module:

Electric windows, tilt and slide roof – Rear power windows

5 as of 1.6.97:
For ATA:ATA inclination sensor;Left infrared transmitter and receiver (interior protection system);

Right IR transmitter and receiver (interior protection system);

Alarm siren with additional battery.

8 30 up to 31.5.97:

Comfort control module:

Electric windows, tilting / sliding roof – Front power windows

10 as of 1.6.98 to 31.5.99:

Emergency call system

as of 1.6.99: Emergency
call system (except US);

Electronic call control module. E-call.

9 20 up to 31.5.97: Roof  tilt
as of 1.6.98: Service vehicles 
10 25 Left front seat power switch:

Rear seat height;

Up / down headrest;

Support.

11 25 Left front electric seat switch:
Front / rear seat;
Front seat height.
12 25 Front electric seat switch:
Front / rear seat;
Front seat height.
13 25 Electrically adjustable right front seat switch:
Rear seat height;
Up / down headrest;
Support.
14 Heated rear seat (from 1.12.94 to 31.5.97)
15 Reserve
16 Reserve
17 Reserve

Relay box

Mercedes-Benz C-Class W202 – fuse box diagram – relay box
Number Relay
A O2S 2 heater relay module (for TWC)
B ASR charging pump relay module (up to 11/94);
AIR relay module.
C. Auxiliary fan relay module (step 1) (11 / 94-08 / 95);
Reserve (as of 09/95).
C + D Auxiliary Fan Relay Module (Stage 1 [to 11/94] and 2);
Auxiliary fan relay (stage 1) (up to 11/94);
Auxiliary fan relay (stage 2) (up to 11/94).
D Auxiliary fan relay module (stage 2) (11 / 94-08 / 95);
Reserve (as of 09/95).
E. HCS relay module
F. Horn relay module
G. Separation Relay Module (Terminal 56 / 56b, Daytime Running Lamps) (Canada)
H. Relay for high pressure / return pump (as of 06/94)
K. Combination relay (turn signal / emergency, heated rear window, wiper motor)
L Outdoor lamp failure monitoring module

Engine 111

Mercedes-Benz C-Class W202 – fuse box diagram – engine 111
Number Description
A1e26 “CHECK ENGINE” MIL
K1 / 2 Overvoltage protection relay module (9-pin)
K17 AIR relay module
K27 Fuel pump relay module
K35 O2S 2 heater relay module (for TWC)
N3 / 4 Engine Control Module (HFM-SFI)
X11 / 4 Data link connector (DTC reading)
Y3 / 3 Upshift delay switch valve

Engine

Mercedes-Benz C-Class W202 – fuse diagram – engine
Number Description
N3 / 4 HFM engine controller
K1 / 2 Overvoltage protection relay
K27 Fuel pump (s) relay

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