BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car



BMW E39
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
- Suspension bracket and steering
   + Forward suspension bracket
   + Back suspension bracket
   + Steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
+ System of onboard diagnostics





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

Steering

Design

Gear and rack type with the hydraulic booster whose coefficient of strengthening depends on engine speed. On some models the Servotronic hydraulic booster whose coefficient of strengthening depends on the speed of the movement is installed. The safety cushion of the driver is located in a steering wheel

Power steering

ATF oil, for example
Shell ATF Dexron II D-21-631
Mobil ATF 220 D-20104
Total Dexron II D-21298

Forward suspension bracket

Design

Independent, aluminum, on double levers with the beam connected with a body through rubber support with Mac-Ferson's racks, screw springs and gas-filled shock-absorbers. The forward beam via cross levers and drafts is connected with rotary support. The hydraulic opiraniye of cross levers provides compensation of fluctuations even at not balanced wheels. The stabilizer of cross stability is installed

Angles of installation of wheels

E34 body

Disorder

- 13' ± 30'

Convergence

18' ± 5'

Longitudinal inclination of an axis of turn of a wheel

8 ° 8' ± 30'

Maximum angle of rotation

 

      •  Internal wheel

20 °

      •  External wheel

18 ° 10' ± 30'

E39 body

Disorder

- 13' ± 30'

Convergence

5' ± 10'

Longitudinal inclination of an axis of turn of a wheel

6 ° 42' ± 30'

Maximum angle of rotation

 

      •  Internal wheel

20 °

      •  External wheel

18 ° 10' ± 30'

Back suspension bracket

Design

Multilever, aluminum, with a stretcher and a double elastic suspension bracket of the main transfer. Four cross levers are elastically connected with a stretcher. The stretcher is also elastically connected with a body.

Angles of installation of wheels

E34 body

Disorder

- 2 ° 20' ± 30'

Convergence

25' ± 7'

E39 body

Disorder

- 2 ° 10' ± 20'

Convergence

16' ± 10'

Efforts of tightening of threaded connections

The moments of an inhaling of fixture are given in the text of the Head and on some illyustratsiyakh*.
* The moments of an inhaling highlighted in the text in bold type are subject to exact observance; efforts which are not highlighted in bold type are given only approximately

Steering

Hose connections of the power steering

 

      •  M10 carving

10 Nanometer

      •  M14 carving

35 Nanometer

      •  M16 carving

40 Nanometer

Bolt of fastening of a steering wheel

65 Nanometer

Lock-nut of fastening of a tip

45 Nanometer

The self-stopped tip nut in an inclined support

65 Nanometer

Steering draft on a gear lath

70 Nanometer

The self-stopped nut of a tip of steering draft in a rotary support

65 Nanometer

Forward suspension bracket

Rod of a depreciation rack

 

      •  at an external hexagon

65 Nanometer

      •  at an internal hexagon

45 Nanometer

The self-stopped draft nuts on a forward beam

110 Nanometer

The cross lever on a forward beam

 

      •  6-cylinder engine

81 Nanometer

      •  8-cylinder engine

77.5 Nanometer

Back suspension bracket

Lower bolt of fastening of the shock-absorber

125 Nanometer