Audi A3

Since 1997 of release

Repair and car operation

Audi A3
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Manual box of a gear change
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
- Suspension bracket and steering
   + Forward suspension bracket
   - Back suspension bracket
      Removal and shock-absorber and spring installation
      Removal and installation of the bearing of a wheel/knot of a nave
      Shock-absorber check
      Shock-absorber recycling
   + Steering
+ Body
+ Onboard electric equipment
+ Electroschemes

Shock-absorber check


Following signs specify in malfunction of shock-absorbers:

– Additional fluctuations of a body at movement on roughnesses of road.
– Increase of amplitude of fluctuations of a body at the following one after another roughnesses of road.
– Jumping of wheels at movement on normal road.
– An involuntary turn of the car at braking. Can be a consequence of other reasons.
– Instability on turns owing to bad coupling with a road covering.
– The raised deterioration of tyres with a cut of tops of drawing of a protector.
– A sign of defective shock-absorbers are also presence of roaring noise. This noise can be a consequence and other reasons, for example, отворачиванием bolts of fastening and nuts, failure of bearings of wheels and hinges of equal angular speeds. Therefore before replacement of shock-absorbers always check their condition.

The shock-absorber can be checked up manually. However exact check of work of shock-absorbers is possible only with the help a shock - of a tester or the special verifying car.

Check manually

1. Remove the shock-absorber.
2. Establish the shock-absorber into position, put forward and compress it. Throughout all course the shock-absorber should move exactly and smoothly.
3. At газонаполненных shock-absorbers at sufficient pressure of gas the rod itself comes back in a starting position. If the rod does not come back, it does not mean necessity of obligatory replacement of the shock-absorber. Its principle of action corresponds to a principle of action of the usual shock-absorber until there is no considerable leak of oil. Dempfirujushchee action of the shock-absorber remains also in the absence of pressure of gas. However its noise characteristics thus worsen.
4. At normal functioning of the shock-absorber insignificant traces of the flowed out oil are not the basis for its replacement. A key rule here is the following: if the oil acting from an epiploon of a rod, is visible, but it does not extend further the bottom plate of a spring the shock-absorber is serviceable. Insignificant leaks of oil have even some advantage as the epiploon is thus greased that promotes increase in its service life.
5. At considerable leaks of oil the shock-absorber is subject to replacement.

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