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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz E-Class W123 (from 1976 to 1985, the year of issue)

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Mercedes-Benz W123
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W123
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Removing and installing the generator
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Repair of starter
Fuses and relays
Windscreen
Schematic diagrams of electrical equipment
Model "250" engine with 123,026
Model "280" engine with 123,030
Models "280E" to the motor 123,033
Models "280E" (engine 123,033, starting with the chassis number 081 279) and the "280SE" (engine 123,053, starting with the chassis number 021 430)
Models "280TE" with the engine 123,093
Models "280TE" with 123,093 engines, starting with the chassis number 007 619
Body and Equipment
 


Hit Counter by Digits


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Models "280E" to the motor 123,033




Legend schematic circuit diagrams

Number

Designation

1

Left block headlamp:

a

  • beam filament

b

  • beam filament

from

  • lamp Position / parking lights

d

  • light fog lights

e

  • Lamp Indicator

2

Sensor control lamp brake fluid level

3

Contact wear left front brake pads

4

Lamp lighting scenes shift lever *

5

Device combination:

a

  • indicator lamp left turn indicator

b

  • warning lamp for brake pad wear

from

  • control lamp brake fluid level and the parking brake

d

  • fuel reserve warning lamp

e

  • fuel gauge

f

  • coolant temperature

g

  • lamps lighting devices

h

  • rheostat lighting devices

i

  • warning lamp battery discharge

j

  • warning lamp beam headlights

k

  • Right indicator lamp Indicator

i

  • Digital Watch

6

Cigarette lighter with lamp ashtray

7

Radio*

8

The right block headlamp:

a

  • beam filament

b

  • beam filament

from

  • lamp Position / parking lights

d

  • light fog lights

e

  • Lamp Indicator

9

Switch Mode Launcher Fuel

10

Valve pilot fuel

eleven

Automatic antenna *

12

Switch the parking brake

13

Coolant temperature

14

Contact Wear the right front brake pads

15

Front ceiling with switch

16

Switch the ceiling in the front left door

17

Switch the ceiling in the front right door

18

A two-tone beep (fanfare)

19

Sensor speed controller software *

20

Amplifier software control speed *

21

Actuator Throttle *

22

The switch / relay-breaker 4-way alarm

23

Switch courtesy light glove box

24

Courtesy light glove box

25

Fuse block

26

The heating element management system engine warming

27

The relay of the fuel pump / motor control system warming

28

Safety switch threshold

29

Relay I activate windows *

thirty

Relays and switching windows *

31

Door Window Switch

32

Switch software control speed *:

A

  • turned off

V

  • deceleration setting /

SP

  • return to the previous rate of movement

AT

acceleration / tuning

33

The combined steering column switch:

a

  • Turn signal switch

b

  • alarm switch headlights

from

  • dimmer switch

d

  • windshield washer switch

e

  • speed switch windscreen wiper

I

  • intermittent operation

II

  • low speed

III

  • high speed

34

Horn switch

35

Windscreen wiper motor

36

Relay intermittent operation of the windscreen wiper

37

Ignition Switch

38

Rotary light switch

39

The electric sunroof *

40

Switch sunroof with electric *

41

The solenoid valve of an automatic transmission *

42

Foot Switch enable low gear *

43

The switch of blocking of a starter and reversing light *

44

C relay II *

45

Relay conditioner I *

46

Switch fan with light

47

Brake light switch

48

Washer pump Windshield

49

Motor cleaner left headlight *

50

Right headlight wiper motor *

51

Relay headlight cleaners *

52

Headlight washer pump *

53

Transistor Ignition Switch

54

Contactless ignition distributor

55

Spark plug

56

Ignition coil

57

Lighting:

a

  • handle air flow direction

b

  • heater control knobs

from

  • switch*

58

The switching valve of stabilization of idling *

59

Thermoelectric switch (62 ?� C) desiccant air conditioner *

60

Thermoelectric switch (100 ?� C)

61

Additional fan *

62

Relay additional fan *

63a

The electromagnetic clutch of the compressor air conditioner *

63b

The gauge of emergency pressure of the air conditioning compressor * (inclusion at 2.6 kgf / cm 2, off at 2.0 kgf / cm 2)

64

Selector Switch temperature conditioner with lighting *

65

Incremental resistance of the fan motor

66

Fan motor

67

0.6 Ohm series resistor

68

Electric window left rear door *

69

Window Switch Left Rear Door *

70

Power Window Switch *:

a

  • window switch left rear door *

b

  • safety switch

from

  • Switch the left front door window

d

  • window switch right front door

e

  • Window Switch Right Rear Door

71

Electric window left front door *

72

0.4 Ohm series resistor

73

Time relays heated rear window *

74

Switch heated rear window *

75

Starter

76

Accumulator battery

77

Generator with electronic voltage regulator

78

Switch the ceiling in the front left rear door *

79

Switch for rear ceiling

80

Switch the ceiling in the front right rear door *

81

Fuel pump

82

Rear ceiling

83

Connector wiring to the rear of the vehicle to consumers

84

Lamp lighting luggage

85

TDC sensor

86

Sensor fuel level indicator

87

Electric window right front door *

88

DLC

89

Electric window right rear door *

90

Window Switch Right Rear Door *

91

Left tail light:

a

  • Lamp Indicator

b

  • red light / parking light

from

  • reversing light bulb

d

  • light stoplight

e

  • light fog lights

92

Bulb license plate light

93

Heated rear screen *

94

Right tail light:

a

  • Lamp Indicator

b

  • red light / parking light

from

  • reversing light bulb

d

  • light stoplight

* Depending on the configuration.


Schematic diagram of electrical equipment (1)


Schematic diagram of electrical equipment (2)





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Model "280" engine with 123,030
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Models "280E" (engine 123,033, starting with the chassis number 081 279) and the "280SE" (engine 123,053, starting with the chassis number 021 430)

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