BMW 5 series E39

Since 1996-2001 of release

Repair and car operation


BMW E39
+ Introduction
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The 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
      Electronic control by rigidity of shock-absorbers (EDC)
      Removal and installation of an amortisation rack
      Dismantling of an amortisation rack/shock-absorber. Removal and installation of a screw spring
      Check and shock-absorber recycling
      Removal and installation of the bearing of a wheel
      Removal and installation of a beam of a forward suspension bracket
      Removal and installation of the lever of a cross-section suspension bracket
   + Back suspension bracket
   + Steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes
+ System of onboard diagnostics

Check and shock-absorber recycling

Signs of the damaged shock-absorbers are:
   a) the Big amplitude of fluctuations of a body at movement on rough road.
   b) Increase of amplitude of fluctuations of a body at movement on the following one after another to roughnesses of road.
   c) Jumping of wheels at movement on normal road.
   d) the Involuntary turn of the car at braking (can be a consequence of other reasons).
   e) Instability at turn owing to bad держания a track and car drift.
   f) the Raised deterioration of tyres with a cut of tops profile (washing away).

The shock-absorber can be checked up manually. Exact check of action of the shock-absorber is possible only by means of a shock-tester or the device for the control of shock-absorbers.

Check manually

 CHECK

1. Remove the shock-absorber.

2. Take the shock-absorber hands into position. Compress and unclench the shock-absorber not less than three times. Thus the shock-absorber should move in regular intervals without jerks and without occurrence of unusual noise.

3. Completely press a rod of the shock-absorber and release it. The rod should be put forward with uniform speed.
4. At normal work presence of small traces of oil is not a sign of malfunction of the shock-absorber.
5. At considerable loss of oil it is necessary to replace the shock-absorber.
6. Establish the shock-absorber.

Shock-absorber recycling

The shock-absorber is filled by oil. To hand over the fulfilled oil it is necessary in special points of reception.

In repair trucks from shock-absorbers before recycling gas leaves. It becomes as follows.

 PERFORMANCE ORDER

1. Clamp the shock-absorber vertically a rod downwards.

2. Drill on distance of 20 mm from the bottom of the shock-absorber aperture of 3 mm. Through an aperture there is colourless, not having a smell and not a poisonous gas.
3. On distance of 60 mm from the bottom drill one more aperture of 5 mm for an oil exit.
4. Movings of a rod of the shock-absorber extort oil and collect it in capacity.

Do not pour out the fulfilled oil together with a household waste. Shock-absorber oil mineral and according to an existing order should be utilised together with impellent oil.