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


Removal of switches (toggle-switches)

At the left: to weaken three screws with crosswise шлицем (arrows). To Uncover (1), to disconnect a covering with the lever switch (2).

On the right: the covering and the lever switch (1) are removed, separated multicontact tips (2 and 4). Now it is necessary to disconnect only one-contact connection (3).

Keyboard switches are fixed spring bracket (arrows). For removal it is necessary to extend a shelf (a white arrow) and to separate the tip (1).

For replacement of bulbs of illumination (3) and a symbol (2) to remove the keyboard switch (1).

At all-wheel drive cars in the central console one more keyboard switch (2) blocking of differential of the back bridge is located. As well as other switches, it too is simply inserted. For bulb replacement it is possible to hook and remove the button of the switch (1).

Models with 4 and 5-cylinder engines: on an illustration the removed panel with switches is shown:

1 and 2 – fixing partitions for screw connections;
3 and 5 – switches electric windows;
4 – the central switch;
6 – the switch of electric regulation of external rear-view mirrors. Arrows specify in fixing ledges with which help the element first line keeps in a door covering.

Models with 6-cylinder engines: for removal of the panel from switches (1) it is necessary to disconnect left an armrest (2) from a covering. For this purpose to turn out three screws with internal шестигранником in the bottom part of an armrest. On an illustration keys for internal шестигранников (arrows) are put to screws.

At the removed combination of devices both screws without a head (2) are visible, keeping the switch of the lock of ignition (3) – on an illustration it is shown removed together with the connected tip (1).

Lever switches

Lever switches (toggle-switches) located at the wheel, are collected in Audi 80 in the complex block and by that can be replaced only in a complex. More low the removal description:


  1. To remove a steering wheel (the head the Suspension bracket and a steering). Especial care is demanded by work with a steering wheel of the models equipped with a pillow of safety.
  2. To insert a screw-driver with крестовой a head on the right below into dredging on a covering of a steering column and to find the screw.
  3. A few to weaken the screw, but not to take out completely.
  4. To extend an element with the lever switch.
  5. To separate multicontact tips and one-contact plug connection.
  6. If it will be necessary to replace the switch it is necessary to turn away two screws in the bottom part of a covering and to remove covering parts.

Keyboard switches

As a rule, three keyboard switches are located in Audi 80 under the central ventilating apertures on the panel of devices. In this case nearby there is a small shelf. If switches more than two the smaller shelf in the sizes is put, at full number of switches for it do not remain places absolutely. Thus, removal of switches also differs a little.


  1. To pull out заглушку that it was possible to reach an underside of the nearby switch.
  2. Or to pull out felt заглушку and to turn out the screw located behind it with crosswise шлицем. To pull out a shelf.
  3. The version without a shelf: to remove autoradio (the description of it see more low in this chapter) and with the connected wires to pull out from an adjusting nest.
  4. All versions: from an underside to squeeze out the switch from an adjusting aperture
  5. To separate the multicontact tip.
  6. In the same way act in film заглушки for installation of new press switches.

Replacement of illumination of switches

In keyboard switches small bulbs with a glass socle for illumination of symbols are established, and also – of them – in addition bulbs for symbol-arrow illumination the switch is included in some. Replacement of bulbs:


  1. Cautiously to hook a key a small screw-driver.
  2. To pull out a bulb with a glass socle sharp pincers or strong tweezers.
  3. To insert a new bulb with a glass socle.
  4. This method годен not for all versions of switches. If it is impossible to change a bulb, it is necessary to change all switch.

Switches in an armrest

In the top lath полокотника the left door switches of electric regulation of external rear-view mirrors and electric windows are located. Removal:


  1. Models with 4 and 5-cylinder engines: to turn out the screw () with crosswise шлицами in the bottom part of an armrest to remove this part.
  2. Now there were accessible two screws (in the models which have been not equipped electric glass lifts, – four) to the top part of an armrest – to turn out.
  3. Slightly to raise the top part of an armrest with switches and with effort to extend back.
  4. Now it is possible to unhook hooks at a forward end face of an armrest of edge of a covering of a door.
  5. Cautiously to extend upwards the panel with switches.
  6. Models with 6-cylinder engines: to weaken in total three screws with internal шестигранником 4 mm in the bottom part of an armrest, to remove an armrest.
  7. To take out the panel with switches from an armrest.
  8. All models: to separate multicontact tips.
  9. To unblock plastic clamps of switches and to take out switches downwards from a plate.