Audi 80/Avant (B4)

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

course c++

Removal of elements

Vprysknye atomizers (white arrows) can be removed only together with the fuel distributor. For this purpose it is necessary to weaken fixing bolts of the distributor of fuel (black arrows).

Removal of a flowmeter of air

It is not necessary for many components of system of injection of any additional instructions on dismantle. Exceptions are described in following sections.


  1. To weaken a collar of a sleeve of a flowmeter of air.
  2. To remove the tip of a flowmeter of air.
  3. To remove the top part of the air filter together with air flowmeter as it is described in the head the Air filter and inlet channels.

Removal of atomizers


  1. To remove an air inlet sleeve between the air filter (air flowmeter) and the engine.
  2. To separate and put aside high-voltage wires of system of ignition.
  3. To separate tips of atomizers.
  4. To turn off the distributor of fuel from an inlet collector of the engine.
  5. To disconnect a vacuum hose from a regulator of pressure of giving of fuel.
  6. The distributor of fuel with all six atomizers cautiously to disconnect in a direction upwards from an inlet collector of the engine.
  7. For removal of one separate atomizer to remove from the fuel distributor safety bracket and to separate an atomizer.
  8. Installation: before installation to replace sealing rings of round section on all atomizers.
  9. To grease all sealing rings with new engine oil.
  10. Very cautiously to insert each atomizer separately, not to squeeze or to damage otherwise any of rings.