Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
5.1. Preliminary checks
5.1.1. Check of level of oil in the hydraulic booster of steering
5.1.2. Pumping of system of steering
5.1.3. Check of system of steering on tightness
5.1.4. Check of a pressure of the vane pump (cars with 4-tsit. petrol also 6-tsit. diesel engines)
5.1.5. Cars with the 6-cylinder petrol engine
5.1.6. Cars with the 8-cylinder petrol engine and the chain drive
5.2. Repair of the steering mechanism
5.3. Tables
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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5.1.2. Pumping of system of steering

After works on system of steering its pumping which can be various depending on amount of completed work is made.

After replacement of steering in collecting or after replacement of the amplifier
Check the level of oil of hydraulic system and if necessary add.
Raise the car so that forward wheels were released.
For a short time start the engine (max. 2 pages)
Air therefore a steering wheel you do not twist it should not get to the pump.
Intervals between starts of the engine about 30 pages.
Check the level of oil of hydraulic system and if necessary add.
Repeat operations while the level of oil is not stabilized.
At the switched-off engine of 10 times turn a steering wheel from an emphasis against the stop.
Check the level of oil of hydraulic system and if necessary add.
The air which remained in system will go to time of the movement of the car approximately through 10–20 km independently.

When replacing an element of steering, except the amplifier (the pump, hoses, etc.)
Check the level of oil of hydraulic system and if necessary add.
For a short time start the engine (max. 2 pages)
Air therefore a steering wheel you do not twist it should not get to the pump.
Intervals between starts of the engine about 30 pages.
Check the level of oil of hydraulic system and if necessary add.
Repeat operations while the level of oil is not stabilized.
Start the engine and leave to work 2–3 min., you do not twist a steering wheel.
The air which remained in system will go to time of the movement of the car approximately through 10–20 km independently.


5.1.1. Check of level of oil in the hydraulic booster of steering

5.1.3. Check of system of steering on tightness