Mercedes M-Class W163

since 1997 release

Repair and operation of the car



Mercedes W163
+ Mercedes-Benz cars of a class M (W163)
+ Governing bodies and methods of safe operation
+ Current leaving and service
+ Engine
+ Cooling systems, heating and air conditioner
+ A power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Transmission line
+ Brake and auxiliary systems
- Suspension bracket and steering
   + Forward suspension bracket
   + Back suspension bracket
   + Steering
   + Suspension bracket geometry
+ Body
+ Onboard electric equipment



Suspension bracket and steering

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type.


General parameters

Wheel base, track, diameter of a turn, mm See Specifications to the Head Governing bodies and methods of safe operation

Bridges

Control sizes of geometrical parameters of the unit of forward and back bridges, mm
V1, V2, V3, N8, N9, N10 3
Forward suspension bracket
Design Completely independent, 4-lever, with telescopic shock-absorbers, the torsion springs, a stretcher and the stabilizer of cross stability (the torsion bar).
Back suspension bracket
Design Completely independent, multilever, rack-mount type (telescopic shock-absorbers and screw springs), with a stretcher and the stabilizer of cross stability (the torsion bar).
Steering
Design
Drive The hydrostrengthened rack transfer with valvate entrance knot and two cross steering drafts, hydrostrengthening is organized according to the scheme (SPS), sensitive to speed of the movement of the car
Steering column Safety, telescopic, with function of shift when landing and adjustment of an inclination
Steering mechanism With the circulating balls
Quantity of turns of a steering wheel at rotation from an emphasis against the stop 2.8
Type and volume of GUR liquid See. Specifications to the Head the Current leaving and service
Pressure in a path of GUR, bar 92 ÷ 100
Road gleam
Control corner

Forward axis

  • Except models 163.174 (ML 55 AMG)
6.4 °
  • Model 163.174 (ML 55 AMG)
4.0 °

Back axis

  • Except models 163.174 (ML 55 AMG)
4.7 ° ± 1.0 °
  • Model 163.174 (ML 55 AMG)
2.9 °
Angles of installation of wheels
Forward wheels

Convergence

  • At the rectilinear provision of forward wheels
0 °10' ± 10'
  • In turns (at an angle 20 °)
2 °06' ± 30'
Disorder depending on installation of a road gleam of a forward axis (with the admission ± 20')
Nominal rates
Except models ML 55 AMG
  • - 2.6 °
- 0 °20'
  • - 1.9 °
- 0 °20'
  • - 1.2 °
- 0 °20'
  • - 0.5 °
- 0 °20'
  • - 0.2 °
- 0 °20'
  • 0.9 °
- 0 °21'
  • 1.6 °
- 0 °22'
  • 2.2 °
- 0 °24'
  • 2.9 °
- 0 °25'
  • 3.6 °
- 0 °27'
  • 4.3 °
- 0 °29'
  • 5.0 °
- 0 °32'
  • 5.7 °
- 0 °35'
  • 6.4 °
- 0 °38'
  • 7.0 °
- 0 °42'
  • 7.7 °
- 0 °46'
  • 8.4 °
- 0 °50'
  • 9.1 °
- 0 °54'
  • 9.8 °
- 0 °59'
  • 10.5 °
- 1 °04'
  • 11.2 °
- 1 °09'
Models ML 55 AMG Data are not provided
The maximum admissible difference between disorders of the right and left wheel 20'
Выбег depending on installation of a road gleam of axes (with the admission ± 30')
  • Except models ML 55 AMG
See Tab. 1
  • Models ML 55 AMG
Data are not provided
Back wheels
Convergence 0 °20' ± 7'
Disorder depending on installation of a road gleam of a back axis (with the admission ± 20')
Nominal rates
Except models ML 55 AMG
  • 7.8
- 0 °52'
  • 7.2 °
- 0 °48'
  • 6.6 °
- 0 °45'
  • 6.0 °
- 0 °44'
  • 5.5 °
- 0 °40'
  • 4.9 °
- 0 °37'
  • 4.3 °
- 0 °35'
  • 3.7 °
- 0 °33'
  • 3.2 °
- 0 °32'
  • 2.6 °
- 0 °31'
  • 2.0 °
- 0 °30'
  • 1.4 °
- 0 °29'
  • 0.9 °
- 0 °29'
  • 0.3 °
- 0 °29'
  • - 0.3 °
- 0 °29'
  • - 0.9 °
- 0 °30'
  • - 1.4 °
- 0 °31'
  • - 2.0 °
- 0 °32'
  • - 2.6 °
- 0 °33'
  • - 3.2 °
- 0 °35'
  • - 3.7 °
- 0 °37'
Models ML 55 AMG Data are not provided
The maximum admissible difference between disorders of the right and left wheel 20'
Выбег depending on installation of a road gleam of axes (with the admission ± 0.5 °) See Tab. 2
Except models ML 55 AMG See Tab. 2
Efforts of tightening of threaded connections, Nanometer

Forward suspension bracket

Bolts of fastening of a stretcher to a car frame 200
Самоконтрящиеся bolts of fastening of the driveshaft to a connecting flange of forward differential 40
Bolts of fastening of shock-absorbers to the lower cross levers 130
Самоконтрящиеся nuts of fastening of shock-absorbers to longitudinal beams of a frame 30
Nuts of bolts of fastening of racks of the stabilizer of cross resistance (torsion bar) to a frame 100
Bolts of fastening of a bar of the stabilizer of cross resistance (torsion bar) to cross levers 68
Nuts of bolts of fastening of assembly brackets of racks of the stabilizer of cross stability (torsion bar) 50
Nut of a bolt of a coupling collar of fixing of the torsion bar 15
Bolts of profile plugs of the torsion springs 23
Screws of face covers of persistent levers of the torsion springs 23
Bolts of fastening of the lower cross levers to a stretcher
  • Lobbies
135
  • Back
30
Самоконтрящиеся nuts of fastening of the top spherical support in rotary fists 50
Koronchaty nuts of fastening of the lower spherical support in rotary fists 300
Bolts of fastening of the top cross levers to a frame 120
Back suspension bracket
Самоконтрящиеся bolts of fastening of a stretcher to a frame 200
Самоконтрящиеся nuts of fastening of shock-absorbers to the lower levers 85
Самоконтрящиеся nuts of fastening of shock-absorbers to side beams of a frame 20
Bolts/nut of fastening of a control sheaf to a stretcher and a frame 20
Самоконтрящиеся nuts of fastening of the top cross levers to side beams of a frame 120
Самоконтрящиеся nuts of fastening of the top spherical support in stupichny assemblies 50
Koronchaty nuts of fastening of the lower spherical support in stupichny assemblies 300
Drain stopper of back differential 50
Самоконтрящиеся bolts of fastening of the back driveshaft to a connecting flange of back differential 50
Bolts of fastening of a longitudinal bracket of fixing of the fuel tank 20
Nuts of connecting bolts of fastening of the stabilizer of cross resistance (torsion bar) to the lower cross levers 28
Bolts of collars of fastening of a bar of the stabilizer of cross resistance to a stretcher 28
Самоконтрящиеся nuts of fastening of the lower cross levers to a stretcher 135
Самоконтрящиеся nuts of fastening of shock-absorbers to screw springs of rack-mount assemblies 30
Самоконтрящиеся nuts of fastening of the lower spherical support to cross levers 125
Самоконтрящиеся nuts of fastening of longitudinal extensions to a stretcher 100
Самоконтрящиеся nuts of fastening of longitudinal extensions to stupichny assemblies 55
Steering
Самоконтрящиеся nuts of fastening of entrance knot of the steering mechanism to a shaft of a steering column and rack transfer 28
Carving unions of connection of pressure head and returnable lines to a case of the steering mechanism 15
Hollow bolts of nipple sockets of pressure head and returnable lines on a case of the steering mechanism 33
Fastening of the pressure head line hydraulic the treatise of GUR to the steering pump (M16x1.5) 45
Fastening of the returnable line to the steering pump 2
Pressure head hose of a tandem component of pump assembly 25
Bolts of fastening of the steering pump  
Standard 25
Self-cut
  • The carving is not cut
35
  • The carving is cut
20
Самоконтрящиеся nuts of fastening of tips of steering thirsts for rotary fists 55
Lock-nuts of fixing of steering drafts in internal tips 50
Fastening of internal tips of steering thirsts for a steering rack 110
Bolts of fastening of the steering mechanism to a stretcher 50
Nut of fastening of the lever of adjustment of a steering column 4
Bolt of fastening of the contact switch to the lever of adjustment of a steering column 1
Bolt of fastening of a steering wheel to a shaft of a steering column 80
Bolts of fastening of a shirt of a steering column (top and lower) 20

Tab. 1

Road gleam
forward axis
Выбег forward wheels

hail

mm

1.6
- 22.6

6 ° 06'

6 ° 12'

6 ° 18'

6 ° 23'

6 ° 26'

6 ° 32'

6 ° 38'

6 ° 44'

6 ° 50'

6 ° 53'

6 ° 59'

7 ° 06'

7 ° 11'

7 ° 14'

2.0

- 19.7

6 ° 04'

6 ° 10'

6 ° 16'

6 ° 22'

6 ° 25'

6 ° 31'

6 ° 37'

6 ° 43'

6 ° 49'

6 ° 52'

6 ° 57'

7 ° 03'

7 ° 09'

7 ° 12'

2.4

- 16.6

6 ° 02'

6 ° 08'

6 ° 14'

6 ° 20'

6 ° 23'

6 ° 29'

6 ° 36'

6 ° 41'

6 ° 47'

6 ° 50'

6 ° 56'

7 ° 02'

7 ° 07'

7 ° 10'

2.8

- 13.9

6 ° 01'

6 ° 07'

6 ° 13'

6 ° 18'

6 ° 22'

6 ° 28'

6 ° 34'

6 ° 40'

6 ° 45'

6 ° 48'

6 ° 54'

7 ° 00'

7 ° 06'

7 ° 09'

3.2

- 10.9

6 ° 00'

6 ° 05'

6 ° 11'

6 ° 17'

6 ° 20'

6 ° 26'

6 ° 32'

6 ° 38'

6 ° 43'

6 ° 46'

6 ° 52'

6 ° 58'

7 ° 04'

7 ° 07'

3.6

- 8.0

5 ° 58'

6 ° 04'

6 ° 09'

6 ° 15'

6 ° 18'

6 ° 24'

6 ° 30'

6 ° 36'

6 ° 42'

6 ° 44'

6 ° 50'

6 ° 56'

7 ° 02'

7 ° 06'

4.0

- 5.1

5 ° 56'

6 ° 02'

6 ° 08'

6 ° 13'

6 ° 16'

6 ° 22'

6 ° 28'

6 ° 34'

6 ° 40'

6 ° 43'

6 ° 48'

6 ° 55'

7 ° 01'

7 ° 04'

4.4

- 2.2

5 ° 54'

6 ° 00'

6 ° 06'

6 ° 12'

6 ° 15'

6 ° 21'

6 ° 26'

6 ° 32'

6 ° 38'

6 ° 41'

6 ° 47'

6 ° 53'

6 ° 59'

7 ° 02'

4.7

0.0

5 ° 53'

5 ° 59'

6 ° 05'

6 ° 10'

6 ° 14'

6 ° 19'

6 ° 25'

6 ° 31'

6 ° 37'

6 ° 40'

6 ° 46'

6 ° 52'

6 ° 58'

7 ° 01'

5.0

2.2

5 ° 52'

5 ° 58'

6 ° 04'

6 ° 09'

6 ° 12'

6 ° 18'

6 ° 24'

6 ° 30'

6 ° 36'

6 ° 39'

6 ° 45'

6 ° 51'

6 ° 57'

7 ° 00'

5.4

5.1

5 ° 50'

5 ° 56'

6 ° 03'

6 ° 08'

6 ° 11'

6 ° 17'

6 ° 22'

6 ° 29'

6 ° 34'

6 ° 37'

6 ° 43'

6 ° 49'

6 ° 55'

6 ° 58'

5.8

8.0

5 ° 48'

5 ° 54'

6 ° 00'

6 ° 06'

6 ° 09'

6 ° 15'

6 ° 21'

6 ° 27'

6 ° 33'

6 ° 36'

6 ° 41'

6 ° 47'

6 ° 53'

6 ° 56'

6.1

10.0

5 ° 47'

5 ° 53'

5 ° 59'

6 ° 05'

6 ° 08'

6 ° 14'

6 ° 20'

6 ° 28'

6 ° 32'

6 ° 35'

6 ° 41'

6 ° 46'

6 ° 52'

6 ° 55'

6.4

12.4

5 ° 46'

5 ° 52'

5 ° 58'

6 ° 04'

6 ° 07'

6 ° 13'

6 ° 19'

6 ° 25'

6 ° 30'

6 ° 33'

6 ° 39

6 ° 45'

6 ° 51'

6 ° 54'

6.8

15.3

5 ° 44'

5 ° 50'

5 ° 56'

6 ° 02'

6 ° 05'

6 ° 11'

6 ° 17'

6 ° 23'

6 ° 29'

6 ° 32'

6 ° 38'

6 ° 44'

6 ° 49'

6 ° 52'

7.2

18.2

5 ° 43'

5 ° 49'

5 ° 54'

6 ° 00'

6 ° 03'

6 ° 09'

6 ° 15'

6 ° 21'

6 ° 28'

6 ° 30'

6 ° 36'

6 ° 42'

6 ° 48'

6 ° 51'

7.4

19.7

5 ° 41'

5 ° 47'

5 ° 53'

5 ° 58'

6 ° 02'

6 ° 08'

6 ° 14'

6 ° 20'

6 ° 27'

6 ° 29'

6 ° 35'

6 ° 41'

6 ° 47'

6 ° 50'

7.6

21.2

5 ° 41'

5 ° 47'

5 ° 53'

5 ° 55'

6 ° 02'

6 ° 08'

6 ° 14'

6 ° 19'

6 ° 26'

6 ° 28'

6 ° 34'

6 ° 40'

6 ° 46'

6 ° 49'

7.8

22.6

5 ° 40'

5 ° 48'

5 ° 52'

5 ° 56'

6 ° 01'

6 ° 07'

6 ° 13'

6 ° 17'

6 ° 25'

6 ° 28'

6 ° 34'

6 ° 40'

6 ° 45'

6 ° 48'

8.0

24.1

5 ° 39'

5 ° 46'

5 ° 51'

5 ° 57'

6 ° 00'

6 ° 06'

6 ° 12'

6 ° 16'

6 ° 24'

6 ° 27'

6 ° 33'

6 ° 35'

6 ° 44'

6 ° 47'

40.5

35.5

30.1

25.0

22.3

17.0

11.8

6.6

1.4

- 1.2

- 6.4

- 11.7

- 16.9

- 19.5

mm

Dorozh-
ny
gleam
back
axes

6.5

5.9

5.3

4.7

4.4

3.8

3.2

2.6

2.0

1.7

1.1

0.5

- 0.1

- 0.4

hail

* Way of calculation: Angle of installation of a gleam of a forward axis (5.8 °) x angle of installation of a gleam of a back axis (2.6 °) = Vybeg (6 °27' ± 30')

Tab. 2

Road
gleam
forward axis
Выбег back wheels

hail

mm

1.6

- 22.6

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

- 8.0'

2.0

- 19.7

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8.1'

- 8. 1'

- 8. 1'

2.4

- 16.6

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8. 2'

- 8. 2'

2.8

- 13.9

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8.2'

- 8. 2'

- 8. 2'

3.2

- 10.9

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8. 3'

- 8. 3'

3.6

- 8.0

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8.3'

- 8. 3'

- 8. 3'

4.0

- 5.1

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8.4'

- 8. 4'

- 8. 4'

4.4

- 2.2

- 8.4'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8. 5'

4.7

0.0

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8. 5'

- 8. 5'

5.0

2.2

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8.5'

- 8. 5'

- 8. 5'

5.4

5.1

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8.6'

- 8. 6'

- 8. 6'

5.8

8.0

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8. 7'

- 8. 7'

6.1

10.0

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8. 7'

- 8. 7'

6.4

12.4

- 8.7'

- 8.7'

- 8.7'

- 8.7'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8. 8'

6.8

15.3

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8.8'

- 8. 8'

- 8. 8'

7.2

18.2

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8. 9'

- 8. 9'

7.4

19.7

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8. 9'

- 8. 9'

7.6

21.2

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8.9'

- 8. 9'

- 8. 9'

7.8

22.6

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9. 0'

- 9. 0'

8.0

24.1

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9.0'

- 9. 0'

- 9. 0'

 

40.5

35.5

30.1

25.0

22.3

17.0

11.8

6.6

1.4

- 1.2

- 6.4

- 11.7

- 16.9

- 19.5

mm

Dorozh-
ny
gleam
back
axes

6.5

5.9

5.3

4.7

4.4

3.8

3.2

2.6

2.0

1.7

1.1

0.5

- 0.1

- 0.4

hail

* Way of calculation: Angle of installation of a gleam of a forward axis (5.0 °) x angle of installation of a gleam of a back axis (3.2 °) = Vybeg (8 °5' ± 0,5 °)

When performing repair or service of components of a suspension bracket and steering often there are problems with an otvorachivaniye of the "stuck" bolts and nuts. Fixture elements located under the car bottom constantly are exposed to external influences and there is nothing surprising that over time they begin to rust and to collapse partially. Use of brute force at an otpuskaniye of such "stuck" fixture is accompanied by risk of its damage. For a start moisten the element which is not giving in to an otvorachivaniye with a small amount of the special getting liquid (WD40 type), having allowed the last to impregnate rust layers properly. Remove with a wire brush external deposits from available sites of carving surfaces. Sometimes the sharp blow by the hammer on a nut through a drift helps to destroy the rust filling gaps between rounds of a carving joint, - try not to allow damages of a carving as a result of a drift soskakivaniye. Use at an otvorachivaniye of the "stuck" fixture of a long neck allows to increase considerably the enclosed torque, however it is necessary to remember that use of extenders complete with drives of ratchet type is accompanied by risk of failure of the returnable mechanism, not to mention a possibility of getting injured.

Fixture damaged in the course of an otpuskaniye is subject to replacement without fail.

As the majority of the procedures described in the present Chapter is made on the car lifted above the ground, it is necessary to take care beforehand of options of reliable fixing of the vehicle in the lifted situation, - prepare strong props. For a poddomkrachivaniye of the car use hydraulic jacks of podkatny type, - you remember that the onboard jack which is included in a basic equipment is intended only for a temporary poddomkrachivaniye of the car when replacing of the failed wheel. The hydraulic jack can be used also for posting of some components of a suspension bracket at implementation of this or that procedure.

Under no circumstances do not perform any works under the car withheld in the lifted situation only by means of a jack(s)!