Audi A4

since 1994 of release

Repair and car operation

A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
- Lighting
   Lighting check
   Spare lamps
   Replacement of lamps of headlights
   Headlight dismantle
   Check of adjustment of headlights
   Fog lights
   Lamps of forward indexes of turns
   Back lamps
   Lamps of illumination of registration plate
   Lamp of illumination of salon
   Lamps for illumination of a control panel
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics

Lamp of illumination of salon

Under the general rasseivatel (4) filament lamps of lamps for reading (1 and 3), and also a lamp for illumination of salon (2) settle down.

At the dismantled lamp of salon (weaken two screws on an average reflector) on a reverse side there are available switches (1 and 3) lamps for reading and the switch (2) lamps of salon.

Such door contact switch (1; here it is dismantled) is only on back doors under a rubber nozzle (2).

At the left: in cars with illumination of a mirror for a make-up it is possible to squeeze out carefully the loose leaf of a mirror (1) of a frame of a sun-protection peak. Then sofitny lamps (3 and 4) for illumination of a mirror will be visible the microswitch (2) and both.

On the right: according to devices the boss and the filament lamp form one constructive element. Here the bulb is unscrewed. Figure «1» showed an arrangement of the lassie for illumination of devices, figure «2» designated 5 bulbs for illumination of the board computer and the control unit.


In Audi A4 management of functioning of a lamp of salon is carried out from the central lock: the control unit of the central lock influences work of a lamp of salon as follows:


  1. After the ignition key is taken out, the salon lamp flashes.
  2. When opening the car illumination of salon joins.
  3. At ignition inclusion, and also when closing car light is switched off.
  4. After door closing light burns about 30 more with but in case before it ignition joined or the central lock was put in action.
  5. If the door remains open more than 4 mines, the lamp of salon is disconnected.

Lamp lamps for illumination of salon


  1. Carefully wring out from grooves a rasseivatel of a lamp and then take out from the case a lamp.
  2. At installation hooks on a reverse side in the beginning insert into cut in a roof.
  3. Take out a sofitny lamp (10 W, length of 41 mm) from the boss.
  4. At the combined lamp for reading take out from the boss a lamp with a glass socle (5 W).

The door contact switch of a lamp for illumination of salon

On forward doors in Audi A4 there are no more traditional door contact switches. Instead of them contact is integrated into a servomotor of the central lock «doors are closed».

In a different way business is with back doors: here in a doorway the traditional contact switch is established. It sends a direct signal about the provision of a door to the control unit of the central lock as it does contact of forward doors. Violations in operation of this switch arise when:

  • press the pin of the switch gets jammed in directing or it will bend. Replace the switch;
  • the socket of a wire fell off the switch. In order that the socket kept better, slightly bend it and again insert;
  • contact surface of the switch with the fixing screw or contacts of the socket were oxidized. Remove an oxide layer with an emery paper or a sharp screw-driver.

The door contact switch is screwed on a door pillar by only one screw with a crosswise head. That it to dismantle, remove a rubber nozzle, unscrew the screw and take out the switch.

Back lamps for reading

Just as forward lamps for reading, back lamps can be established in the provision of lamps of illumination of salon at the expense of change of position of the switch therefore the back part of salon too has benefit from management of illumination of salon. Replacement of lamps:


  1. Insert a screw-driver into dredging sideways on the case of a lamp and carefully wring out a lamp.
  2. After filament lamp replacement again insert the lamp case – in the beginning that party, where a wire.

Illumination of a mirror for a make-up


  1. Carefully squeeze out the mirror loose leaf from a frame of a sun-protection peak.
  2. Take out this filament lamp from the boss.
  3. Insert a new lamp.

Lamp for illumination of a luggage carrier

Both lamps for illumination of a luggage carrier settle down at the left in lateral facing of a luggage carrier, and also – is a little hidden – in a cross-section guard under back glass.


  1. Open a cowl.
  2. Insert a screw-driver into dredging sideways in the case of a lamp and carefully wring out a lamp.
  3. After filament lamp replacement (a sofitny lamp of 5 W, length of 36 mm) again insert the lamp case – in the beginning that party, where a wire.

Lamp for illumination of an impellent compartment


  1. Slightly squeeze a lamp plafond on the right and at the left and remove it.
  2. At a 10-vattny bulb bayonetny connection.