Audi 80/Avant (B4)

since 1991-1995 of release

Repair and car operation

Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ injection System
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
- Body electrosystem
   Minus to "weight"
   Orientation in electrosystem
   Plug connections
   Central switchboard
   Additional block of the relay
   Relay and control units
   Unloading relay of contact X
   Safety locks
   Table of safety locks
   Electric circuits
   + Full electroscheme of the Audi 80 car: 2-liter 4-cylinder engine (66 kW)
   + 2-liter 4-cylinder engine (85 kW)
   + 2,3-liter 5-cylinder engine (98 kW)
   + 2,6-liter 6-cylinder engine (110кВт)
   + Additional equipment
   + Storage battery
   + Generator
   Check of a condition of a maple or polilinovy belt
   Tension of a maple belt
   Tension of a maple or poliklinovy belt
   Torn maple a belt
   Engine overheat because of damage of a maple belt
   Review of maple and poliklinovy belts
   Replacement of a maple belt
   List of malfunctions
   List of malfunctions
+ ignition System
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications


The starter on the right side of the engine is remote (on an illustration the 4-cylinder engine) is shown

2–a plug 50 wire (from the ignition lock);

3–a plug 30 wire (from the accumulator);
4–starter fastening.

On an illustration the starter (the 5-cylinder engine) in unassembled form is shown

1–holder of brushes;
4–the case of the bearing involving;

6–cover of the case of the bearing;
7–bearing cover;
8–lock washer, adjusting washer and sealing laying.

Engine start


  1. At ignition key turn in the situation "Start" a food arrives on the plug 50 involving relays, located from above on a starter.
  2. Thus the lever of inclusion enters a starter gear wheel on spiral rounds into gearing with a gear wreath of a flywheel of the engine.
  3. Only after complete gearing of a gear wheel the involving relay includes food of the accumulator completely arriving from the plug 30, and then a starter strongly scrolls the engine.
  4. The engine of a starter and gear wheel are connected among themselves through a reducer. Therefore the electric motor rotates much quicker, than a gear wheel.
  5. When the engine is started – the gear wheel again leaves gearing with a flywheel.

Starter removal


  1. To disconnect a "weight" wire from the accumulator, danger of emergence of short circuit otherwise is great.
  2. To remove the bottom protection of a motor compartment (head body Elements).
  3. To lift the car in front on the right and to fix.
  4. To remove all wires from the involving relay.
  5. To remove starter fastening in front in the movement direction (where it is).
  6. To unscrew fixing bolts or nuts on a fixing flange of a starter (that is behind in the movement direction).
  7. To remove a starter.

Replacement of brushes

If the starter does not work, that, probably, the whole matter is in the wear of its brushes. Coal brushes can be got only complete with a fixing plate. As the starter case after opening needs to be pressurized, in shop of spare parts you will need also hermetic D 3. Further models with the 4-cylinder engine will need a powerful soldering iron and solder.


  1. To remove a starter.
  2. On the closed party of a starter to turn out two screws with a cut in a head, fixing a small cover of the bearing, to uncover.
  3. To remove a lock washer and an adjusting washer from the shaft which was under a cover.
  4. To remove both screws (or nuts hairpins) from a back cover of the case and to uncover.
  5. To measure length of brushes – the minimum length of 8 mm.
  6. For replacement of brushes to disconnect a fixing plate from the involving relay.
  7. Again to collect a starter, thus загерметизировать a case cover, fixing screws and a bearing cover.

Removal of the involving relay


  1. To remove a starter.
  2. To disconnect a wire from a starter.
  3. To unscrew three screws on a fixing flange of the involving relay.
  4. A few to wring out involving relay and to take out an eye from the lever of inclusion of a starter.