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

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

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

Lighter fuse (electrical outlet) in Mercedes C-Class w202 (1993-2001). Is fuse 2 in the fuse box in the engine compartment.

Main fuse box in the engine compartment (until 30.11.94)

Mercedes-Benz C w202 – fuse box diagram – main fuse box in engine compartment
Number Amps [A] Description
1 7,5 Dip beam on the right
2 15 Front Lighter With ashtray light;

Glove box light with switch;

Radio (until 09/93).

3 10 Seat belt alert control module (USA);

Automatic heating button control module;

Automatic air conditioning (AC) pushbutton control module;

Air conditioning (tempomatic) control button;

Time limit relay for use of residual heat from the motor;

Radio;

Seat belt control and vehicle speed warning module.

4 15 Emergency lights with trailer;

Instrument cluster;

Timer;

Warning buzzer;

Cab roof sign.

5 20 Safety belt and vehicle speed warning control module;

Radio;

Automatic button module heater;

Automatic climate control (AC);

Air conditioning button control module (thematic);

Residual heat utilization motor relay thermo control module button;

Horn.

6 7,5 Direction indicators with trailer
7 7,5 Dipping beam on the left
8 7,5 Rear window defroster switch
9 7,5 Lighter Lighting;

License plate illumination;

Instrument cluster, instrument lighting.

10 Reservation
11 7,5 Auxiliary fan relay, 1st and 2nd stage (K9);

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

Control knob for automatic climate control (AC);

Air conditioning control module (thematic);

Push-button control module.

12 10 Stop light switch;

Trailer stop light;

Brake signal for ABS;

Brake signal for ASR;

Brake signal for ASD;

Brake signal for cruise control;

Cruise control module;

Instrument cluster, lamp failure indicator light;

Outdoor lamp failure monitoring module.

13 30 Auxiliary fan relay, first and second phase
14 30 Recirculation unit for heating systems:

Fan motor;

Fan regulator.

15 30 Combination switch:

Flickering of the headlights;

Headlight cleaning system;

Windshield washer pump;

Windshield wiper motor;

Combination Relay.

16 30 Combined Relay:

Rear window defrost control

17 40 Air injection relay, engine 104 HFM-SFI
18 7,5 Through the external light fault monitoring module:

Left parking light/tail light;

Front left marker light;

Left rear marker light;

Rear trailer light.

19 7,5 Traffic Light Right
20 10 Electric switch of the rear window shutter;

Radio;

Control module for heated front seat (HS).

21 20 Automatic antenna
7,5 Radio
22 10 Fog light right and left
23 15 Overvoltage protection relay;

Relay to disable the kick-out function;

Data link connector;

Clutch pedal switch, idle speed control;

Blowdown control valve;

Preheat timer relay;

Engine speed mixture preparation control module;

Cruise speed control switch;

Camshaft adjuster;

Intake manifold heater relay;

Tank breather valve;

Variable resonance inlet manifold switching valve.

24 10 Headlight cleaning system;

Via the external headlight fault monitoring module:

Right parking light, rear light;

Front right marker light;

Right rear marker light;

Rear trailer light.

25 7,5 Traffic light on the left

High beam indicator light

26 7,5 Telephone transmitter/receiver;

Hand relay;

Convenient control module;

SRS fault indicator light.

27 7,5 Left front door entry/exit lamp;

Right front door entry/exit lamp;

Data link connector.

28 7,5 Rear fog light with trailer
29 15 Heated left/right side windshield washer nozzle;

Adjustable outside mirror with heated mirrors:

Exterior mirror/interior mirror switch (S50);

Mirror heater;

Reversing light switch, manual transmission;

Start switch/reversing light switch;

Automatic transmission.

30 10 Headlight cleaning system:

Headlight Washer Relay;

Left and right headlight washer motor.

31 Reservation
32 7,5 Test connector for diagnostic module II (USA);

Diagnostic Module II (USA).

33 15 Front dome lamp with reading light and delayed shut-off

Rear dome lamp;

Starter Lamp;

Left and right visor with illuminated cosmetic mirror;

Air system equipment, central locking.

34 10 External rear view mirror with folding/folding function;

Headrest release valve with delayed deactivation;

Daytime running lamp control module.

35 7,5 Air system equipment, central locking;

Front dome lamp with reading light and delayed shut-off;

Immobilizing Relay;

ATA control module with/without infrared remote control;

Trailer recognition control module.

Main fuse box in engine compartment (1.12.94-31.5.97).

1.12.94 a 31.8.96

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

from 1.9.96 to 31.5.97

Mercedes-Benz C w202 – fuse box diagram – main box in engine compartment
Number Amps [A] Description
1 7,5 Direction indicator lights;

Taximeter lamps, cab (until 31.8.95).

2 20 from 1.12.94 to 31.8.95:

Horn;

Automatic heating;

Hot water circulation pump;

Automatic heating button control module

Duo valve;

Automatic heater with air recirculation and engine waste heat utilization system:

Automatic heater control unit with air recirculation;

Vacuum blower;

A/C button control module (thematic);

Automatic climate control (AC) button control module;

Daytime running light control module;

Seat belt alert control module;

Seat belt and vehicle speed control module.

1.9.95 a 31.5.97:

Horn;

Air Conditioning (Tempatic):

Electrical control module for suction type fan;

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

Electrical control module for suction type fan;

Continuous daylight control module.

15 1.9.95 a 31.5.97:

Horn;

Automatic heater: air circulation valve;

Automatic heater;

Continuous daylight control module.

3 10 1.12.94 a 31.8.95:

Instrument set;

External lamp fault monitoring module;

Stop lamp switch:

Stop lamp;

Trailer stop light;

Brake signal for cruise control;

Brake signal for ABS;

Brake signal for ASR;

SBrake signal for ASD;

Cruise control/stop light switch module with intermediate bridge.

7,5 1.9.95 a 31.8.96:

Instrument set;

External lamp fault monitoring module;

Taximeter, cab.

15 1.9.96 a 31.5.97:

Instrument set;

External lamp fault monitoring module;

Stop lamp switch:

Stop lamps;

Trailer stop lamps;

High center stop light mounted;

Traction system control module;

Heated windshield washer nozzles;

Taximeter.

4 7,5 Dip beam on the right
15 ATA Immersion Beacon
5 7,5 Dip beam on the left
6 7,5 Traffic Light Right
7 7,5 Traffic light on the left;

High beam indicator;

8 10 Left fog light;

Right fog light.

9 40 until 31.8.95:

Fan controller, air conditioning (automatic) / air conditioning (theme)

30 1.9.95 a 31.5.97:

Fan controller, air conditioning (automatic) / air conditioning (theme)

10 15 Emergency lights with trailer;

Instrument cluster;

Cab roof plate.

11 40 Rear window defroster:

Combined relay (indicator/warning signal, heated rear window, wiper motor)

12 20 until 31.8.95:

Automatic heater with air recirculation and engine waste heat utilization system:

Hot water circulation pump;

Fresh/circulating air fin diverter valve;

Double valve;

A/C button control module (thematic);

Automatic climate control (AC) button control module;

Seat belt alert control module;

Automatic heater with air recirculation and engine waste heat utilization system:

Engine waste heat utilization time relay;

Lighter (customer option).

10 1.9.95 a 31.5.97:

Lamp warning beep;

Automatic heater with air recirculation and engine waste heat utilization system;

Air conditioning (themed);

Air conditioning (automatic);

Minibar (customer option);

Lighter (customer option).

15 from 9.01.95 to 31.05.97 upwards (Only when the lighter is switched back on at t. 30):

Lamp warning beep;

Automatic heater with air recirculation and engine waste heat utilization system;

Air conditioning (themed);

Air conditioning (automatic);

Minibar (customer option);

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 defroster (from 1.9.95 to 31.8.96):

Rear window defroster switch;

Combination switch:

Headlight Flickering;

Windshield wiper motor;

Windshield washer pump;

Windshield wiper motor;

Windshield wiper motor (range circuit).

14 15 Front cigarette lighter with illuminated ashtray;

Glove box lamp with on/off switch;

Rear window defroster switch (from 1.12.94 to 31.8.95);

Garage door opener (USA; 1.9.96 to 31.5.97);

Rear heated seat relay (customer option).

15 15 Parking lamp on the right;

Right rear light;

Front right side marker lamp;

Right rear side rear side marker lamp;

Right rear towing light;

Instrument cluster;

Headlight cleaning system on;

License plate illumination;

Lighter Illumination.

16 7,5 Left parking light;

Left taillight;

Left front side marker lamp;

Left rear rear side marker lamp;

Left rear trailer side marker lamp.

17 7,5 Rear fog light;

Rear fog light on the trailer.

18 40 until 31.8.95:

Automatic heater:

Air volume switch, fan motor;

Automatic heater with air recirculation and engine waste heat utilization system:

Air volume switch, fan motor.

7,5 1.12.94 a 31.8.95:

A/C button control module (theme);

Automatic climate control (AC) button control module;

1.9.95 a 31.8.96:

Automatic heater:

Air volume switch, fan motor;

Automatic heater with air recirculation and engine waste heat utilization system:

Air volume switch, fan motor;

Air conditioner (temp.):

Blower, auxiliary fan;

Air conditioning (automatic):

Blower, auxiliary fan;

1.9.96 a 31.5.97:

Automatic heater:

Blower;

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

Blower, auxiliary fan;

Air conditioning button control module (automatic air conditioning);

Blower, auxiliary.

19 15 1.9.95 a 31.5.97:

Load compartment junction box, T models.

20 7,5 Airbag failure indicator:

SRS failure indicator light;

Control module for emergency voltage retractor with airbag;

Convenience Relay.

21 15 Radio transmitter/receiver;

Control module for heated front seat (HS).

22 10 Electric Rear Blind Switch
23 15 Front dome lamp with reading light and delayed shut-off;

ATA control module;

Infrared central locking control module;

Interior rear view mirror with dimming capability:

Electronic dimming of the interior mirror;

ATA:
Immobilizing Relay;
Release of the rear headrest:
Headrest release valve with delayed deactivation;
Socket, trailer hitch, 13-pin.

24 15 Left/right outside mirror adjustment:

Mirror heating;

Exterior mirror/interior mirror switch;

Reversing lamp switch;

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

Mirror heating;

Exterior mirror/interior mirror switch;

Exterior rear view mirror with folding/removing function, mirror folding motors

Orthopedic backrest.

25 20 Control module for heated front seat (HS)
26 15 Radio Transmitter/Receiver
27 15 Front dome light with delayed shutdown and reading light;

Rear dome light;

Starter Lamp;

Infrared central locking control module;

Pneumatic system equipment, central locking.

28 40 Via air injection relay: Electric air pump
29 30 ECE Auxiliary Fan
Auxiliary (USA, Japan)
30 15 1.12.94 a 31.8.95:
Overvoltage protection relay;

Time-limited pre-slow relay;

Kick-off deactivation relay;

Flush control valve;

Solenoid actuator, camshaft timing adjustment;

Clutch pedal switch, idle speed control;

Tank breather valve;

Variable resonance intake valve.

30 1.9.95 a 31.8.96:
Overvoltage protection relay;

Time-limited pre-slow relay;

Solenoid actuator, camshaft timing adjustment;

Flush control valve;

Kick-off deactivation relay;

Stop lamp switch:

Stop lamp;

Trailer stop light;

Brake signal for cruise control;

Brake signal for ABS;

Brake signal for ASR;

Brake signal for ASD;

Cruise control module;

Tank breather valve;

Variable resonance inlet manifold switch valve, 6 cylinders.

31 10 Heated left/right windshield washer nozzle;

Windshield washer water heater;

Start switch/reversing lamp switch;

Automatic transmission;

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

32 7,5 Data link connector;
Diesel shut-off valve (until 31.8.95).
33 7,5 Test connector for diagnostic module II (USA);
Diagnostic Module II (USA).
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Main fuse box in the engine compartment (as of 31.5.97).

Mercedes-Benz C w202 – fuse box diagram – main fuse box in engine compartment
Number Amps [A] Description
1 5 Heated front seat control module (HS);

Left front seat belt comfort solenoid (up to 31.5.98);

Right front seat belt comfort solenoid (up to 31.5.98);

Seat adjustment relay (from 1.6.98 to 31.5.99);

Automatic seat belt fastening function (from 1.6.99).

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

Automatic child seat recognition sensor (ACSR);

Left-side airbag sensor;

Right side airbag sensor.

3 15 1.6.97 a 31.5.99:

Radio;

CTEL transmitter receiver for MB D-net telephone or ‘Standard’ D-net telephone (up to 31.5.98);

CTEL interface for ‘Handy’ D-net telephone (up to 31.5.98);

Voice control system (from 1.6.98 to 31.5.99).

5 starting 1.6.99:

Cell Phone / Handy (USA; from 1.6.99);
CTEL transmitter and receiver with fixed installation;
Interface for cell phones with “Handy” phone;
Voice Control System (VCS).

4 5 Instrument cluster: airbag indicator and warning lamp, supplementary safety system (SRS)
5 15 1.6.97 a 31.5.98:

Rear window blind switch (center console);

Navigation processor;

Cargo space socket (model 202 T).

20 as of 1.6.98:

Rear window blind switch (center console);

Center console: outside rearview mirror switch (with folding/reversing function).

6 7,5 1.6.97 a 31.5.98:

Center console: external rear view mirror switch (with folding/folding function);

1.6.98 a 31.5.99:

Autopilot system (APS);

Navigation processor;

CTEL transmitter and receiver with D-network telephone, fixed installation;

Interface for cell phones with the “Handy” D network;

Emergency call system, TELE HELP;

as of 1.6.99:

Emergency call system.

7 7,5 Bottom control panel:

Outer rear view mirror adjustment;

Left/right power window;

Switch illumination;

Reverse gear recognition;

Boot lid remote control;

Autopilot system (APS) (until 31.5.99);

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

Interface for cell phone with “Handy” D network (from 1.6.98 onwards);

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

Navigation processor (from 1.6.98 to 31.5.99).

8 30 Driver side front door control module:

Output lamps;

Outer mirror adjustment, defroster;

Window supply;

Seat memory switch;

Switch illumination;

Central locking;

Convenient closure.

9 25 Air control panel:

Sliding roof/elevator;

Front/rear dome lamp;

Rain sensor;

Convenient shutdown;

Makeup mirror;

Interior rear-view mirror with dimming;

Internal RF receiver;

Brightness-adjustable exterior rear-view mirror;

Switch illumination;

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 (to 31.5.98).

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

Reversing light (for switch) (from 1.6.98).

14 5 Parktronic System (PTS)
Taximeter
15 15 1.6.97 to 31.5.99 (T models):

Rear windshield wiper;

from 1.6.99:

Stop lamp (non-contact):

Stop lamp;

Traction system control module;

Third traffic light;

Trailer stop lights.

16 5 1.6.97 a 31.5.99:

Angle sensor steering angle sensor steering wheel, for the electronic stability program (ESP);

from 1.6.99:

Rear wiper (T model).

17 30 Driver side tailgate control module:

Comfort Lock;

Switch illumination;

Central locking;

Output lamps;

External rear view mirror adjustment, defroster;

Window supply;

Seat memory switch.

18 25 Blinker with trailer;

Hazard flashers with trailer (until 31.5.98);

Auxiliary turn signals (until 31.5.98);

Positive continuous trailers (until 31.5.98).

19 10 Instrument set;

External lamp fault monitoring unit;

Daytime running light control module;

Stop lamp (normally open contacts; until 31.5.99):

Stop lamps;

Traction system control module;

Center high stop light mounted;

Trailer stop lights.

20 15 Automatic heater (HEAT):

Heating knob control module;

Car temperature sensor;

Fresh/circulated air flap switch valve;

Air conditioning (Tempatic):

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

Car temperature sensor;

Fresh/circulated air flap switch valve;

Air conditioning (automatic):

Air conditioning (automatic air conditioning) button control module;

Emission sensor (until 31.5.98).

21 15
22 10 Combination switch:

Windshield wiper;

Headlight flickering;

Windshield washer pump;

Turn signals, turn signal indicator, control.

23 15 Front cigarette lighter (with ashtray lighting);

Glovebox light;

Garage door opener (USA; until 31.5.98).

24 15 Parking lamp on the right;

Right rear light;

Front and rear marker lights on the right side;

Right rear trailer light;

Instrument cluster;

License plate illumination;

Cigarette lighter illumination;

Headlight cleaning system.

25 7,5 Left parking light;
Left taillight;
Front and rear marker lights on the left side;
Left rear trailer light.
26 7,5 Rear fog light;

Rear fog light, trailer

27 15 Electronic steering column lock:

Solenoid of the electric steering column control module (ESC).

28 10 1.6.97 a 31.5.99:

Roof sign (cab; until 31.5.98);
Lighter;
Minibar.

5 starting 1.6.99:

Steering angle sensor, with electronic stability program (ESP)

29 30 Fan 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 intake fan (engine 111 with code 581a)

30 10 Indicator set;

Automatic heater (HEAT):

Heating button control module;

Coolant circulation pump;

Two-valve;

Air conditioning (Tempatic):

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

Coolant circulation pump;

Two-valve;

Air conditioning (automatic):

Air conditioning (automatic air conditioning) button control module;

Emission sensor (until 31.5.98).

31 7,5 until 31.5.98: Dip beam on the right
15 as of 1.6.98: Dip beam on the right
32 7,5 until 31.5.98: Dip beam on the left
15 from 1.6.98: Dip beam on the left
33 7,5 Traffic Light Right
34 7,5 Traffic Light Left

High beam indicator

35 15 Fog lights on the left and right;

Turn off the headlights (USA).

36
37 25 as of 1.6.98: Heating Intensification
40 starting 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 Electric fan 380W (motor 111 with automatic air conditioning), M112 USA / Japan
60 550 W electric suction fan for 112, 611 engines with automatic air conditioning
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Mercedes-Benz C-Class w202 – fuse box diagram – engine compartment
Number Amps [A] Description
39
40 10 Horn
41 15 Turn on the signal lamps;

Turn on the signal indicator;

Horn;

Windshield Wiper;

Windshield Washer Pump;

Rain sensor;

Rear window defroster;

Engine fan;

Engine waste heat utilization system;

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 trunk (until 30.11.94)

Mercedes-Benz C-Class W202 – fuse diagram – trunk
Number Amps [A] Description
1 25 Switch for front left seat electrically adjustable:
Headrest;
Backrest;.
Seat height
2 25 Switch for electrically adjustable right front seat:

Seat height;

Front/rear seat.

3 25 Switch for front left seat electrically adjustable:

Seat height;

Front/rear seat.

4 25 Switch for electrically adjustable right front seat:
Headrest;
Backrest;
Seat Height.
5 25 Sound system: Amplifier control unit (left/right speakers)
6 7,5 CD player with change
7 30 Convenient control module:

Power windows;

Tilt and slide roof;

Rear windows.

8
9 7,5 Comfort Relay;

Convenience control module:

Electric windows, sloping and sliding roof.

10 30 Convenient control module:

Electric windows, sloping and sliding roof;

Electrically operated front windows.

11 7,5 ATA control module;

Trailer sensor control module.

12 20 Control module for heated front seat (HS)
13 20 Tilting and sliding the roof
14
15
16
17 7,5 Telephone Transmitter/Receiver
18 25 Socket, trailer connector, 13-pin;

Fuel pump relay.

19

Fuse box in the trunk ( from 1.12.94)

Mercedes-Benz C-Class W202 – fuse diagram – trunk
Number Amps [A] Description
1 25 until 31.5.97:

Sound system: Amplifier (left/right speaker);

from 1.6.97:

Fuel Pump.

2 7,5 Injection System
30 as of 1.6.97:

Pneumatic system equipment (PSE):
Central locking system (pump);
Headlight, terminal 56b for anti-theft alarm (ATA).

3 20 until 31.5.97:

ATA control module;

Trailer 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 1.12.94 a 31.8.96:

Automatic antenna, sedans

40 as of 1.6.97:

Pneumatic system equipment (PSE):

De-icer rear window;

Central locking;

Sign Audible anti-theft alarm (ATA).

5 7,5 until 31.5.97:

Left front door entry/exit lamp;

Right front door entry/exit lamp.

30 as of 1.6.97: Driver’s side tailgate control module
6 25 until 31.5.97: Socket, trailer coupling, 13-pin
5 as of 1.6.97:

Rear dome lamp;

Starter Lamp;

Seat adjustment relay;

Rear dome lamp (cab).

7 30 until 31.5.97:

Comfort control module:

Power windows, tilt and slide roof – Power rear windows

5 as of 1.6.97:
For ATA:

ATA Tilt Sensor;

Left infrared transmitter and receiver (interior protection system);

Right infrared transmitter and receiver (interior protection system);

Alarm siren with additional battery.

8 30 until 31.5.97:

Comfort control module:

Electric windows, tilt and slide roof – Front electric windows

10 1.6.98 a 31.5.99:

Emergency Call System

starting 1.6.99:

Emergency call system (except USA);

Electronic e-call control module.

9 20 until 31.5.97:

Roof tilt -slide

from 1.6.98: Vehicles business
10 25 Power switch for the front left seat:

Rear seat height;

Headrest up/down;

Backrest.

11 25 Switch for front left seat electrically adjustable:
Front/rear seat;
Front seat height.
12 25 Switch for electrically adjustable right front seat:
Front/rear seat;
Front seat height.
13 25 Switch for electrically adjustable right front seat:
Rear seat height;
Headrest up/down;
Backrest.
14 Heated rear seat (from 1.12.94 to 31.5.97)
15 Reservation
16 Reservation
17 Reservation

Relay Box

Mercedes-Benz C-Class W202 – fuse box diagram – relay box
Number Courier
A Heater relay module O2S 2 (after TWC)
B ASR charge pump relay module (up to 11/94);
AIR relay module.
C Fan relay auxiliary module (phase 1) (11 / 94-08 / 95);
Reserve (from 09/95 onwards).
C + D Auxiliary fan relay module (phase 1 [do 11/94] i 2);
Auxiliary fan relay (phase 1) (to 11/94);
Auxiliary fan relay (phase 2) (to 11/94).
D Auxiliary fan relay module (phase 2) (11 / 94-08 / 95);
Reserve (from 09/95 onwards).
E HCS relay module
F Horn relay module
G Breakaway relay module (terminal 56 / 56b, daytime running light) (Canada)
H High pressure pump/return relay (from 06/94)
K Combined relay (indicator / emergency, heated rear window, wiper motor)
L External Lamp Malfunction Monitoring Module

Engine 111

Mercedes-Benz C-Class W202 – fuse box diagram – Engine 111
Number Description
A1e26 “CHECK ENGINE” MILES
K1 / 2 Overvoltage protection relay module (9-pole)
K17 AIR relay module
K27 Fuel pump relay module
K35 Heater relay module O2S 2 (after TWC)
N3 / 4 Motor control module (HFM-SFI)
X11 / 4 Data link connector (DTC readout)
Y3 / 3 Switch to a higher delay shift valve

Motor

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

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