E39 series BMW 5

since 1996-2001 of release

Repair and car operation



E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, 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
      Electronic control by rigidity of shock-absorbers (EDC)
      Removal and installation of an amortization rack
      Dismantling amortization rack/shock-absorber. Removal and installation of a screw spring
      Check and shock-absorber utilization
      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


Heavy Metal & Reflected



Check and shock-absorber utilization

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

The shock-absorber can be checked manually. Exact check of operation of the shock-absorber is possible only with the help shock tester or devices for 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 evenly without breakthroughs and without emergence 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 existence 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 utilization

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

In repair trucks from shock-absorbers before utilization gas is removed. It becomes as follows.

 PERFORMANCE ORDER

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

2. Drill at distance of 20 mm from the shock-absorber bottom an opening of Ø 3 mm. Through an opening there is colourless, not having a smell and not a poisonous gas.
3. At distance of 60 mm from the bottom drill one more opening of Ø 5 mm for an oil exit.
4. Movings of a rod of the shock-absorber extort oil and bring together him 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 utilized together with impellent oil.