Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
2.1. General information
2.1.1. General recommendations about service and repair of engines
2.2. Predvaritlny checks
2.3. Mekhanichsky part (petrol engines 2,0l)
2.4. Lubrication system
2.5. Cooling system
2.6. System of injection
2.7. System of production of the fulfilled gases
2.8. Mechanical part (petrol engines 3,0; 3,2 l)
2.9. Mechanical part (petrol engines of 4,2 l)
2.10. Mechanical part (diesel engines of 2,0 l)
2.11. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 




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2.1.1. General recommendations about service and repair of engines

Adjustment of valvate gaps is made automatically with use of hydraulic pushers and does not demand manual adjustment. For supply of oil to the rubbing surfaces of the engine the oil pump which in four – and pyatitsilin-drovy engines is located in the pallet of a case is used and its drive is carried out by an intermediate shaft. On shestitsilin-drovy engines the oil pump is located in a forward cover of a bent shaft and its drive is carried out directly from a bent shaft. Under pressure oil moves to channels to bearings of cranked and distributive shaft.
The water pump on four – and pyatitsilin-drovy engines fastens sideways the block of cylinders of the engine. The drive of the water pump is made by a maple belt or a ridge auxiliary belt which also puts in action the generator, the pump of the amplifier of steering and the compressor of the conditioner. On the six-cylinder engine the water pump is located in a forward part of the engine and is put in action by a gear belt. Keep in mind that the cooling system of the engine has to be filled all the year round with mix of antifreeze and water with the low content of lime. Preparation and ignition in cylinders of the engine of fuel-air mix is carried out by the control system of the engine which is not demanding adjustment. The corner of an advancing of ignition and turns of idling are regulated by a control system of the engine. In the course of carrying out maintenance it is necessary to make replacement of spark plugs and the filtering element of the air filter.


2.1. General information

2.2. Predvaritlny checks