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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz C-Class (W203, 2000 issue)

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Mercedes-Benz W203
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Mercedes-Benz
W203
Introduction
Instruction Manual
Routine maintenance
Engine
Cooling and heating
The power supply system and release
Electric motor
Manual gearbox
Automatic Transmission
Coupling and power shafts
Brakes
Suspension and steering
Body
Onboard electric
Specifications
Fault diagnosis onboard electric equipment - the general information
Check the wiper motor
Check heated rear window
Relays and fuses
Replacing incandescent exterior lights
Replacing bulbs Interior lighting
Removing and installing daylight sensor
Removing and installing lights
Removing and installing fog
Removing and installing the lens fog
Removing and installing the rear light
Replacing the battery ignition key / remote control
Removing and installing windscreen wiper motor
Removing and installing rear window wiper motor
Removal and installation of the water tank and pump motor
Removal and installation of a rain sensor
Removal and installation of the audio signal
Removing and installing parking sensors
Removing and installing ambient temperature sensor
Removing and installing dashboard
Removal and installation of stalk
Removal and installation of the switch of the front canopy on the ceiling
Removal and installation of the group switches to the left of the control panel
Removing and installing center console switch
Removal and installation of switches in the door
Removal and installation of door switches the interior lighting
Removal and installation of warning signs parking assistant
Removing and installing cigarette lighter
Removal and installation of the radio
Removal and installation of loudspeakers
The digital CAN data bus
The uniform lock - general information
Installation of additional electric and electronic devices
Function and location of electrical connectors
Diagrams
 


Hit Counter by Digits


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Specifications



Separate characteristics are resulted also in the text of the Head and in case of compulsion of their performance are highlighted in bold.


Common parameters

Incandescent lamps

12

Appointment

Cap Type Power, W

Distant Light

H7 / D2R 55/35

Dipped

H7 / D2R 55/35

Fog lights

HB4 55

Front direction indicators

PY 21

Parking lights

W 5

Side repeater indicators

WY 5

The rear direction indicators

PY 21

Stop Light

P 21

Misty lights

P 21

Reversing lights

P 21

Number plate lights

C 5

parking lights

P4

Interior light / lighting trunk

From 10

N7NV4

Halogen lamp (clamp mount)

D2R

The xenon lamp of high voltage

R

Bayonet cap

PY

Bayonet cap, orange

W

The glass plinth

WY

Glass base, orange

FROM

Soffit

R

Bayonet cap

Fuse box in the luggage compartment of a vehicle


Fuse.

Terminal

Connector

The color and wire size in mm 2

Appointment

Current (A)

1

15R

Adjusting the left seat:

thirty

1, pin 5

Black-Yellow 2.5

The control unit control / position memory driver's seat (N32 / 1)

2

15R

Adjusting the right seat:

thirty

1, Pin 6

Black and Pink 2.5

Adjustment control module / memory position the front passenger seat (N32 / 2)

Poluelektronnaya adjustable front seats:

1 pin 6

Black-Yellow 2.5

Adjustable driver relay (K5 / 1) / passenger (K5 / 2) seats

3

thirty

Tire inflation pressure control (TPC):

07.may

7, pin 1

Red and Yellow 0.5

TPC control unit (N88)

TV ECE and the United States:

9, the output 1

Red and yellow 0.75

TV-tuner (Europe, USA, Japan) (A2 / 42)

TV Japan:

9, the output 1

Red and yellow 0.75

TV-tuner (A2 / 10)

Models 203.7:

16, pin 1

Red-Green 0.5

Receiver radio remote control of stationary heater (STH) (A6 / 1)

17, pin 1

Red-Green 0.75

The rear cabin lamp (E15 / 3)

Model 203.0 and 203.2 with system Parktronic and rear lamp salon:

17, pin 1

Red-Green 0.75

Signal display PTS (rear cabin lamp) (A44 / 3)

4

15R

1, terminal 3

Black and Green 2.5

Fuel pump (M3)

15

5

15R

-

-

Backing relay 2 (N10 / 2kS)

20

6

thirty

28, pin 1

-

-

25

7

15R

-

-

Backing relay 1 (N10 / 2kD)

20

8

thirty

23, terminal 4

Red and yellow 0.75

Module 1 of the amplifier antenna rear window (A2 / 71)

07-5

ATA with TS, IMS:

4, terminal 4

Red and Blue 0.5

Siren Alarm (H3)

4, pin 5

Red and White 0.5

The tilt sensor ATA (B33)

9

thirty

22, terminal 4

Red and Blue 2.5

The control unit of the ceiling panel (N70)

25

10

15R

20, pin 5

Black 2.5

Rear Defrost (R1)

40

eleven

15R

20, pin 3

-

-

20

12

15R

Models 203.2:

20, pin 2

Black and Green 1.5

The inner socket (X58 / 1)

15

13

15R

19, pin 1

Black-and-yellow 0.75

Pneumopumps orthopedic seats (M40)

5

Voice control system (VCS):

5, pin 2

Black-Yellow 0.5

Voice Control Unit (A35 / 11)

Cell phone Motorola Star TAC, retrofit:

5, pin 2

Black-Yellow 0.5

D2B interface for a portable mobile phone (A59 / 1)

Model 203.0 and 203.2 with lamps for reading:

12, pin 5

Black and gray 0.5

Rear light for reading (E15 / 3)

Model 203.0 and 203.2 with a reading light and a system Parktronic:

12, pin 5

Black and gray 0.5

Signal display PTS (rear cabin lamp) (A44 / 3)

12, pin 5

Black and gray 0.5

The control unit PTS (N62)

14

15R

30, pin 1

Black-Yellow 1.5

- E / rear screen wiper motor (M6 / 4)

15

15

-

-

-

- Relay filler, the receiver polarity 1 (N10 / 2kG)

10

16

thirty

For VSC:

20

5 Pin 1

Red and purple 0.5

Voice Control Unit (A35 / 11)

For CTEL Motorola Star TAC, retrofit:

5 Pin 1

Red and purple 0.75

- D2B interface for a mobile phone (A59 / 1)

17

thirty

S17 (outer fuse)

Red-Green 2.5

For tow bar:

20

- Connector tow bar (N28 / 1)

18

thirty

S18 (outer fuse)

Red and Yellow 2.5

For tow bar:

20

- 13-pin towbar (X58)

19

thirty

S19 (outer fuse)

Red and White 1.5

- Pneumopumps multiplanimetric seats (M40)

20

20

thirty

S20 (outer fuse)

Red and Blue 0.75

For dimming rear window:

7.5

- Dimming rear window (K74)

Relay

Position

Designation

A

The fuel pump relay (N10 / 2kA)

AT

Relay 2, terminal 15R (N10 / 2kV)

FROM

Backing relay 2 (N10 / 2kS)

D

Backing relay 1 (N10 / 2kD)

E

Relay rear window defogger (N10 / 2kE)

F

Relay 1, terminal 15R (N10 / 2kF)

G

Relay filler, switch polarity 1 (N10 / 2kG)

H

Relay filler, polarity switch 2 (N10 / 2kN)

Fuse box in the passenger compartment


Fuse.

Terminal

Connector

The color and wire size in mm 2

Appointment

Current (A)

21

thirty

X35 / 1 (connector of the left front door)

Red and white / 2.5

The control unit of the left front door (N69 / 1)

thirty

22

thirty

X35 / 2 (socket right front door)

Red and gray / 2.5

The control unit is the right front doors (N69 / 2)

thirty

23

thirty

-

-

Cigarette lighter

15

24

thirty

-

-

Spare

-

25

thirty

5, the output 4

Red and green / 2.5

The control unit controls the top panel (N72 / 1)

10

26

thirty

1, the output 26

Red and purple / 4.0

Audio amplifier (A72 / 13)

thirty

27

thirty

2, pin 1

Red and yellow / 2.5

The control unit is electrically adjustable driver's seat (with memory) (N32 / 1)

thirty

28

thirty

-

-

Spare

-

29

thirty

X35 / 33 (frame-floor / emergency power connector)

Red and blue / 2.5

Taxi: A special control module failures (SVMCM) (N26 / 9)

thirty

thirty

thirty

1, terminal 3

Red and green / 4.0

Block air circulation heater (A32)

40

31

thirty

A pin 9

Red and purple / 1.5

The control unit EIS (N73)

20

32

thirty

X35 / 3 (connector left rear door)

Red and black / 2.5

The control unit left rear door

thirty

33

thirty

X35 / 4 (right rear door connector)

Red and white / 2.5

The control unit right rear door

thirty

34

30, 15

-

Red and purple / 1.5

Coupling connector kley 30 (Z4 / 3)

07.5

Z4 / 3 (coupling connector kley 30)

Red and purple / 1.0

For the emergency call (US) and an additional cell phone:

Cell phone and transceiver TELE AID D2V (A35 / 17)

Red and purple / 1.5

For the built phone:

Cell phone and transceiver D2V (A35 / 13)

Red and purple / 1.5

To supply system distress TELE AID:

Cell phone and transceiver TELE AID D2V (A35 / 17)

Red and purple / 0.75

For additional cell phone:

Telephone interface (A34 / 4)

27 (coupling connector kley 30)

Compensator CTEL (A28 / 3)

Red / 0.5

For additional cell phone:

Telephone interface (A34 / 4)

H39 / 37 (Connector Port-tive phone)

Red and purple / 1.0

For Japanese models, 203.0 and emergency call systems:

Cell phone and transceiver TELE AID D2V (A35 / 17)

35

thirty

1, pin 1

Red and black / 2.5

For stationary heater (STH):

thirty

Block heater STH (A6)

36

thirty

-

Red / 1.5

For government vehicles (STH):

thirty

37

thirty

2, pin 2

Red and white / 2.5

The control unit of the brake booster vacuum pump (N65 / 3)

25

38

thirty

2, pin 1

Red and green / 2.5

The control unit of the electric right front seat (N32 / 2)

thirty

39

thirty

-

-

Spare

-

40

thirty

X35 / 33 (frame-floor / emergency power connector)

Red and white / 2.5

For taxis and government vehicles:

thirty

Special control module failures (SVMCM) (N26 / 9)

41

thirty

1, pin 2

Red and blue / 0.5

The control unit controls the top panel (N72 / 1)

07.5

1, the output 14

Red and blue / 0.75 2

For automatic heater:

The control unit pushbutton heater (N18)

For automatic K / (AAS):

The control unit pushbutton AAS (N22)

For AAS system "comfort":

The control unit pushbutton AAS "comfort" (N22 / 7)

42

thirty

1, pin 5

Red and yellow / 0.5

Dashboard (A1)

07.5


Fuse and relay box in the engine compartment


Relay

Position

Appointment

I

Relay fanfare horn (N10 / 1kl)

TO

Relay terminal 87, the chassis (N10 / 1kK)

L

Relay speed modes (1 and 2) Wiper (N10 / 1kL)

M

Relay terminal 15R (N10 / 1kM)

N

The control pump relay KSG (N10 / 1kN)

ABOUT

Pump relay secondary air mixing (N10 / 1kO)

R

Relay terminal 15 (N10 / 1kR)

Q

Switch on / off the wiper (N10 / 1kQ)

R

Relay terminal 87, the engine (N10 / 1kR)

S

Starter relay (N10 / 1kS)

Fuse.

Terminal

Connector

The color and wire size in mm 2

Appointment

Current (A)

43a

15R

-

-

Relay fanfare horn (N10 / 1kl)

15

43b

thirty

-

-

Relay fanfare horn (N10 / 1kl)

15

44

15R

23

Black-and-yellow / 0.5

To supply system distress TELE AID:

5

The control unit TELE AID (A35 / 8)

For the built phone:

Interface D2V (A59)

For additional cell phone:

Telephone interface (A34 / 4)

For the emergency call (US):

Coupling connector 15R (Z3 / 12)

For emergency call system (Japan):

The control unit TELE AID (A35 / 8)

45

15R

12, terminal 4

Pink and black / 0.75

Is protected by a fuse socket connector side airbag (Z3 / 31):

07.5

SRS control unit (N2 / 7)

46

15

-

-

Switch on / off the wiper (N10 / 1kQ)

40

47

15R

Illumination (except lighting vents):

15

19, pin 6

Black-and-yellow / 0.75

Highlights of the glove box with a sensor switch (E13 / 2)

19, pin 6

Black-and-yellow / 1.0

Highlighting front ashtray / cigarette lighter

48

15

3, pin 1

Black-and-green / 1.0

The control unit of the brake booster vacuum pump (N65 / 3)

15

The engine 112:

17, pin 3

Black-and-yellow / 1.5

Protected fuse coupling connector (Z3 / 29) 15

49

15

12, pin 3

Black-Red / 0.5

SRS control unit (N2 / 7)

07.5

50

15

19, terminal 4

Black-and-green / 0.5

The module light switch (S1)

5

14, pin 1

-

-

51

15

19, pin 8

Black Brown / 0.5

Dashboard (A1)

07.5

2, pin 6

Black and white / 0.75

AAS (Auto K / V) with integrated electric auxiliary fan (M4 / 7)

For AAS "comfort":

19, pin 8

Black Brown / 0.5

Through slot sensor climate control (H85 / 9):

Sensor failure AAS (B31 / 1)

The sun sensor AAS (4 pieces) (B32 / 2)

For all vehicles with xenon headlights:

24, pin 1

Black and pink / 0.75

Left block light (E1)

The right block light (E2)

52

50

17, pin 1

Purple / 2.5

Starter motor (M1)

15+

53

87

13, pin 3

Violet-blue 0.5

Rear SAM control unit with fuse and relay box (N10 / 2)

15

Engine 111:

2, pin 9

Red and Blue 1.5

ECM (N3 / 10)

15

Engine 112:

2, pin 9

Red and Blue 0.75

ECM (N3 / 10)

15

3, pin 8

Red and Blue 0.75

Canister purge valve (Y58 / 1)

15

17, pin 2

Red and Blue 1.5

Coupling connector kley 87M1e (Z7 / 35)

15

Engine 611:

2, pin 9

Red and Blue 2.5

Control unit contact ignition (CDI) (N3 / 9)

25

3, pin 8

Red and Blue 2.5

CDI control unit (N3 / 9)

25

54

87

Diesel engines:

2, pin 2

Black-and-Red 2.5

CDI control unit (N3 / 9)

07.5

17, terminal 4

Black-and-Red 1.0

Heater inlet pipe (R8)

07.5

Gasoline engines:

2, pin 2

Black-and-Red 2.5

Coupling connector kley 87M1e (Z7 / 36)

15

17, the output 4 (only 112 engines)

Red-Green 1.0

(only 112 engines)

Coupling connector kley 87M1e (Z7 / 36)

07.5

55

87

7, pin 5

Red-Green 0.5

Steering wheel sensor (N49)

07.5

DTR:

21, pin 1

Red and Blue 0.75

DTR control unit (N63 / 1)

AT:

9, the output 1

Red-White 0.75

The control unit ETC (N15 / 3)

9 pin 3

Red and Blue 0.75

The electronic control unit of the selector lever (N15 / 5)

Automated PPC (Sequentronic):

9, the output 1

Red and White 1.0

Control unit Sequentronic (N15 / 6)

9 pin 3

Red and Blue 0.75

The gauge-switch of position of transmission (S16 / 10)

56

87

7, pin 3

Red and Blue 0.75

The control unit ESP and BAS (N47-5)

5

7, the output of 4

Red and Yellow 0.5

The gauge-switch of stoplights (S9 / 10)

57

30z

19, pin 1

Red and Black 0.5

Steering wheel sensor (N49)

5

19, pin 1

Red and Blue 0.5

The control unit of the electronic ignition / gauge-switch of disconnection of a chain starter stoplights (N73)

Engine 112:

2, terminal 4

Red 0.75

ECM (N3 / 10)

58

thirty

Automated PPC (Sequentronic):

9 pin 4

Black and Blue 0.5

Control unit Sequentronic (N15 / 6)

40

59

thirty

8, pin 2

Red 4.0

The control unit ESP and BAS (N47-5)

50

60

thirty

8, pin 1

Red 2.5

The control unit ESP and BAS (N47-5)

40

61

thirty

Automated PPC (Sequentronic):

9, pin 6

Black and Green 0.5

Control unit Sequentronic (N15 / 6)

15

62

thirty

2, the output 11

Red-Green 0.75

Connector DLC (X11 / 4)

5

19, pin 2

Red and Yellow 0.5

Lamp switch module (S1)

7 pin 7

Pink and Green 0.5

The gauge-switch of stoplights (S9 / 1)

63

thirty

19, pin 5

Red-Green 0.5

Lamp switch module (S1)

5

64

thirty

Radio:

11, pin 2

Red and Blue 2.5

Radio (A2)

10

Version COMAND:

11, pin 2

Red and Blue 2.5

The display and control unit is functioning COMAND (A40 / 3n1)

65

15

Mixing air into the exhaust:

17, pin 5

Red and White 4.0

Electric air pump (M33)

40

Efforts of a tightening of carving connections, Nanometer

Fastener tightening torques are given in the text of the Head and on some graphics *.

* Highlighted text in bold torques are subject to exact observance; no bold efforts resulted only roughly.





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