Audi A3

Since 1997 of release

Repair and car operation

Audi A3
+ The maintenance instruction
+ Current leaving and service
- The engine
   Compression check in engine cylinders
   Check of the engine by means of the vacuum gauge
   Removal and installation of the bottom cover of an impellent compartment
   Removal and engine/rkpp installation
   + Four-cylinder petrol engines 1.6, 1.8 l
   + Diesel engines
   + Major repairs
   - Greasing system
      The general recommendations about impellent oils
      Contour of circulation of oil
      The dynamic control of pressure of oil
      Check of pressure of oil and the gauge of the index of pressure of oil
      Removal and installation of the pallet kartera/replacement of a sealing lining of the pallet картера
+ 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
+ Body
+ Onboard electric equipment
+ Electroschemes

Contour of circulation of oil


The scheme of circulation of impellent oil

1 – the oil channel of a head of cylinders
2 – the main oil channel
3 – a stream of oil for piston cooling
4 – the oil filter of the main stream
5 – an oil radiator

Engines are supplied by greasing system under pressure. The oil pump soaks up through a grid impellent oil from the pallet картера and submits it under pressure through the oil filter. From outside forcings of the oil pump is редукционный the valve. At superfluous pressure of oil the valve opens, and the oil part comes back back in the pallet картера.

Through the central part of a cartridge of the filter the filtered oil arrives in the main oil channel. The gauge of the index of pressure of oil which through a control lamp in the block of the panel of devices specifies to the driver in inadmissible pressure decrease of oil there settles down. At a contamination of the oil filter перепускной the valve directs oil without its filtration directly to the main oil channel.

From the main oil channel channels of greasing of bearings of a cranked shaft branch off. Through inclined channels in cranked to a shaft oil arrives to шатунным to bearings. Cooling of the bottom of the piston is carried out through the atomizers submitting oil from below in the piston.

Simultaneously impellent oil arrives through vertical pipelines in a head of cylinders, supplying with oil bearings of a camshaft and jacks клапанных backlashes.

Depending on execution oil is cooled by means of a radiator located on a flange of the oil filter and included in system of cooling of the engine.

The oil expense

The oil expense is understood as quantity of oil which is consumed in the course of combustion. At all it is not necessary to understand as it the expense of oil connected with its leaks owing to негерметичности through the pallet картера, a cover of a head of cylinders etc.

The normal expense of oil is formed at combustion of a small amount of oil in cylinders, together with release of the fulfilled gases and deterioration. Besides, oil is lost as a result of influence of a heat and a high pressure which is taking place in the engine. Oil loss is affected also by service conditions, as, for example, style of driving, and also admissions of manufacturing of elements of the engine. The oil expense should not be more 1.0л/1000 km.

At all it is not necessary to fill in oil above mark Max. If oil has been poured, surplus is necessary for extorting it. Otherwise can be damaged каталитический the converter not burnt down oil arriving in it.

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