Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
3. Transmission
4. Running gear
4.1. Wheels and tires
4.2. General information about a running gear of the car
4.2.1. Running gear
4.2.2. Leakage of shock-absorbers
4.2.3. Noise in shock-absorbers
4.2.4. Check of the removed shock-absorber
4.2.5. Check of shock-absorbers at the damping stand
4.2.6. Dynamic-Ride-Control system (DRC II)
4.2.7. Forward depreciation rack
4.2.8. Check of pressure in the DRC II system
4.3. Repair of a suspension bracket of forward wheels
4.4. Back suspension bracket
4.5. Tables
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment


4.2.4. Check of the removed shock-absorber

Defective shock-absorbers prove in the movement loud foreign knocks (as a result of the wheel course), and, in particular, on the bad road. Especially it is noticeable at strong leak of oil.

Shock-absorbers are unattended details, having added oils is impossible.

The removed shock-absorber preveryatsya manually as follows.
Manually squeeze the shock-absorber.
The rod has to move on all length of the course evenly hard and without breakthroughs
Release a rod.
On shock-absorbers with the sufficient pressure of gas the rod independently leaves in a starting position.

If it does not occur, it is not obligatory to change the shock-absorber. While there is no big leak of oil, the principle of action corresponds to operation of the ordinary shock-absorber.
Shock-absorbing action completely remains also without gas pressure while there is no big loss of oil. However noisiness can be raised.

4.2.3. Noise in shock-absorbers

4.2.5. Check of shock-absorbers at the damping stand