Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

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
+ System of injection
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signalling devices
- Devices and auxiliary devices
   Check of indicators and signaling devices
   Elements of a combination of devices
   Indicator of amount of fuel
   Indicator of temperature of cooling liquid
   Voltage stabilizer
   Additional devices
   The top indicators in a combination of devices
   Indicator of cooling liquid
   Indicator of brake system
   Oil pressure indicator
   Indicators of indexes of turns
   Lower indicators
   Battery charge indicator
   Indicator of indexes of turn of the trailer
   Safety cushion indicator
   Indicator of anti-blocking system
   Indicator of a driving beam
   Indicator of the parking brake
   System of self-examination
   Ignition lock
   Check of switches
   Buzzer of shutdown of lighting and radio
   Heating of back glass
   Check of screen wipers and windscreen washers
   Screen wiper engine
   List of malfunctions
   Screen wiper of back glass
   List of malfunctions
   Replenishment of a washer reservoir of glasses
   System of washing of headlights
   Audio system
   Antenna of back glass
   Electric regulation of external rear-view mirrors
   System of locks with the central management
   Power windows
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Voltage stabilizer

On a reverse side of a combination of devices sideways on a small radiator the voltage stabilizer (shooter) is established.

On a reverse side of the block of a combination of devices three bolts screwed a small box – a voltage stabilizer. Its task – to supply indicators of temperature and amount of fuel with completely leveled tension. Otherwise fluctuations of tension will lead to fluctuations of arrows of indicators.

If both devices behave "the devil knows as" or at all show nothing, most likely, because of the stabilizer.

Check of a voltage stabilizer


  1. To remove a combination of devices, again to connect a wire.
  2. To include ignition.
  3. To connect the voltmeter between average and left contact of the stabilizer (if to look at a combination of devices from a reverse side).
  4. The voltmeter has to show 9,75 — 10,25 Century.
  5. If value of tension goes beyond these limits, so the voltage stabilizer is faulty. If at all there is no tension, it is necessary to check food giving.
  6. For this purpose to connect the voltmeter between average and right contact of the stabilizer. If it does not show accumulator tension, so it is necessary to look for a gap in conducting.