Fuses and relay Mercedes w203




For Mercedes Benz C-Class (C180, C200, C230, C240, C280, C320) – 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 model year, 203 chassis.

Fuse box in engine compartment.

fuse box location.

The fuse box is located in the engine compartment on the driver’s side.

Removing cover

Twist screws "2" 90° counterclockwise. Lift the rear of cover "1". Slide out retainer "3" and remove cover "1" by pulling towards front.

 

Opening fuse box

  • With a dry cloth, remove any moisture from the fuse box.
  • Release clamps "5".
  • Remove fuse box cover "4".

fuse box diagram.



legend.

F43a

(15A) Horn relay

F43b

(15A) Horn relay

F44

(5A)Telephone

F45

(7,5A) SRS control module

F46

(40A) Windscreen wiper motor relay

F47

(15A) Glove box lamp, cigarette lighter (front)

F48

(15A) Brake servo control module(112engine)

F49

(7,5A) Supplementary restraint system (SRS) control module

F50

(5A) Lamps control module

F51

(7,5A) Air conditioning (AC), head lamp level control module, instrument panel, engine coolant blower motor

F52

(15A) Starter motor

F53

(15A) Engine management (petrol), multifunction control module 2

F54

(7,5A) Engine management, air conditioning (AC)(petrol)

F55

(7,5A) Steering position sensor, sequential manual transmission-MT

F56

(5A) Brake pedal position (BPP)switch, electronic stability program (ESP) control module

F57

(5A) Steering position sensor, engine control module(ECM)(112engine), ignition switch control module

F58

(40A) Transmission control module (TCM) (sequential manual transmission)

F59

(50A) Electronic stability program (ESP)control module

F60

(40A) Electronic stability program (ESP)control module

F61

(15A) Transmission control module (TCM) (sequential manual transmission)

F62

(5A) Datalink connector(DLC), lamps control module, brake pedal position (BPP) switch

F63

(5A) Lamps control module

F64

(10A) Audio system

F65

(40A) Secondary air injection (AIR) pump (if fitted)

I

Horn relay

K

Transmission system relay (sequential manual transmission)

L

Windscreen wiper motor relay (speed 1 and 2)

M

Ignition main circuits relay

N

Transmission pump relay (sequential manual transmission)

O

Secondary air injection(AIR) pump relay (112/113/271engines)

P

Ignition main circuits relay

Q

Windscreen wiper motor relay(ON/OFF)

R

Engine control (EC)relay

S

Starter motor relay



Fuse box in passenger compartment Mercedes w203.

fuse box location.

The main fuse box is located in the passen­ger compartment on the driver’s side of the cockpit.




Opening fuse box

  • Open the driver’s door.
  • Pull fuse box cover "1" open with a screw driver or similar tool (see arrow).
  • Remove fuse box cover "1" rearward.

fuse box layout.

F21

(30A) Door function control module, left front

F22

(30A) Door function control module, right front

F23

(15A) Cigarette lighter

F24

 

F25

(10A) Heated rear window

F26

(30A) Audio unit output amplifier

F27

(30A) Seat adjustment control module, left front

F28

 

F29

(30A) Multifunction control module(taxi)

F30

(40A) AC/heater blower motor

F31

(20A) Ignition switch control module

F32

(30A) Door function control module, left rear

F33

(30A) Door function control module, right rear

F34

(7,5A) Telephone

F35

(30A) Auxiliary heater

F36

 

F37

(25A) Brake servo vacuum pump control module

F38

(30A) Seat adjustment control module, right front

F39

 

F40

(30A) Multifunction control module(taxi)

F41

(7,5A)AC/heater control module, multiswitch assembly control module (upper) – center console (^05/01)

F42

(7,5A) Instrument panel



 

Fuse box in trunk Mercedes w203.

 

The fuse box is located in the trunk behind the left-hand trim panel.

 

Opening fuse box

  • Pull away trim panel "1".
  • Remove fuse box cover "3".


fuse box diagram.

A

Fuel pump relay

B

Ignition main circuits relay

C

D

E

Heated rear window relay

F

Ignition main circuits relay

F1

(30A) Seat adjustment control module, left front

F2

(30A) Seat adjustment control module, right front, seat adjustment relay (front)

F3

(7,5A) Tyre pressure monitor control module, interior lamp (rear)

F4

(20A) Fuel pump

F5

F6

F7

F8

(7,5A) Aerial signal amplifier, alarm system horn, alarm system gradient sensor

F9

(25A) Sunroof control module

F10

(40A) Heated rear window

F11

F12

(15A) Auxiliary power socket

F13

(5A) Seat lumbar pump, reading lamps(rear), telephone system

F14

(15A) Rear screen wiper motor (estate)

F15

(10A) Fuel filler flap relay 1

F16

(20A) Telephone system

F17

(20A) Trailer control module

F18

(20A) Trailer socket

F19

(20A) Seat lumbar pump

F20

(7,5A) Rear window blind relay

G

Fuel filler flap relay 1

H

Fuel filler flap relay 2