Audi A4

since 1994 of release

Repair and car operation



A4 Audi
+ Running gear
+ Regular servicing
- Engines
   Capacity steps
   Engine signs
   Technology of the engine, maintenance and repair
   Greasing system
   Exhaust ventilation of a case
   Visual control of the engine
   Engine service life
   Nominal and maximum frequency of turns
   Restriction of number of turns
   Measurement of pressure of compression
   The help at malfunctions
   Hydropushers
   Works on a gear belt
   The help at malfunction
   Installation and dismantle of a head of the block of cylinders
   Installation and engine dismantle
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Restriction of number of turns

Our engines maintain quite high frequencies of turns. Valves are actuated by means of the tarelochny pushers which have been directly located over distributive (and) shaft (ами). Thus insignificant masses of metal that does not represent danger to a drive of valves are given in movement.

This restriction is partial function of injection which at too high frequency of rotation of the engine stops further increase of turns by fuel interruption of supply. If you will be surprised by interruptions in operation of the engine on high turns, it not defect, and the built-in self-defense of the engine. Border of number of turns in Audi for various engines the different:

  • Four-cylinder dvukhklapanny engine: 6500 rpm.
  • Four-cylinder pyatiklapanny engine: 6800 rpm.
  • Six-cylinder engine: 6200 rpm.