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

Do not start the engine and establish forward wheels directly.
Oil in a cold state (external temperature apprx. +20 °C):
Turn off a cover.
Wipe the index of level with a pure rag.
Densely twirl a cover and again turn off.
Read out the level of oil on the index only after preliminary closing of a cover.

Check of level of oil

Fig. 5.1. Check of level of oil



Oil has to be in the region of the mark "MAX".

Check of level of oil at oil temperature in the engine +80 °C
Oil has to be 10 mm above the mark "MAX".

NOTE
If the level of oil is higher than the specified zone, pump out oil.
If the level of oil is lower than the specified zone, it is necessary check hydraulic system for leakage. In this case one dolivka of oil is not enough.
Reuse the merged oil it is impossible.



5.1. Preliminary checks

5.1.2. Pumping of system of steering