Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
- Injection system
   - System of injection Mono-Motronic
      Operating procedure
      Malfunctions and independent diagnostics
      Independent repair
      Visual check
      Check of separate elements
      Check of a mode of idling and the analysis of exhaust gases
      Check каталитического neutralizer and a ljambda-probe
      Trosovyj drive of "gas"
      The list of malfunctions
   + System of injection Digifant
   + System of injection KE-III-Jetronic
   + Systems of injection MPI and MPFI
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


Independent repair

Kind of the block of preparation of a gas mixture of system of injection Mono-Motronic at the removed air filter

1 – a pressure regulator;
2 – the connecting tip for an atomizer and the gauge of temperature of arriving air;
3 – the connecting tip of a potentiometer throttle заслонки;

4 – an atomizer;
5 – the gauge of temperature of arriving air.

Many checks of system of injection, unfortunately, cannot be spent in-home because of absence of devices necessary for check. But nevertheless there is a certain field for activity.

The block of management cannot be checked up "house" means. But from practice it is known that malfunctions here arise very seldom.

Is much more often give an occasion to claims gauges, switches and cable connections. Therefore at the found out malfunctions the following operations procedure is recommended:


    To establish that ignition is perfectly in order. To check up supply by fuel. To spend visual check of elements of system of injection. If thus malfunction has not been found, to see the list of malfunctions in the end of the head and to check up in a workshop the store of malfunctions, to check up a suspected detail under the specified scheme.

 The help: at an injection system crash at first check up safety locks № 13, 21, 25, 27 and 28. Through them passes all food of system of injection Mono-Motronic.