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
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
   Check of indicators and signalling devices
   Elements of a combination of devices
   The indicator of quantity of fuel
   The indicator of temperature of a cooling liquid
   Voltage stabilizer
   Additional devices
   The top indicators in a combination of devices
   The indicator of a cooling liquid
   The indicator of brake system
   The indicator of pressure of oil
   Indicators of indexes of turns
   The bottom indicators
   The indicator of a charge of the storage battery
   The indicator of indexes of turn of the trailer
   The indicator of a pillow of safety
   The indicator of antiblocking system
   The headlight indicator
   The indicator of a lay brake
   Self-examination system
   The ignition lock
   Check of switches
   Buzzer of switching-off of illumination and radio
   Heating of back glass
   Check of screen wipers and стеклоомывателей
   The screen wiper engine
   The list of malfunctions
   Screen wiper of back glass
   The list of malfunctions
   Replenishment of a tank of a washer of glasses
   System of washing of headlights
   The aerial of back glass
   Electric regulation of external rear-view mirrors
   System of locks with the central management
   Electric glass lifts
Heating and ventilation
Body elements
Search of malfunctions

Voltage stabilizer

On an underside of a combination of devices sideways on a small radiator the voltage stabilizer (arrow) is established.

On an underside of the block of a combination of devices by three bolts it is screwed small ящичек – a voltage stabilizer. Its problem – to supply indicators of temperature and quantity of fuel completely выравненным with pressure. Otherwise pressure fluctuations will lead to fluctuations of arrows of indicators.

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

Voltage stabilizer check


  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 an underside).
  4. The voltmeter should show 9,75—10,25 Century
  5. If value of pressure leaves for these limits, means, the voltage stabilizer is faulty. If at all there is no pressure, it is necessary to check up food giving.
  6. For this purpose to connect the voltmeter between average and right contact of the stabilizer. If it does not show storage pressure, means, it is necessary to search for rupture in conducting.