Audi A3

Since 1997 of release

Repair and car operation

Audi A3
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Manual box of a gear change
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Electric equipment of system of comfort
   Diagnostics of malfunctions of an onboard electric equipment - the general information
   Check of the electric motor of a screen wiper
   Check of warmed back glass
   Stoplight check
   Removal, installation and check of a sound signal
   Safety locks
   Fusible inserts - the general information
   Chain breakers (thermal relays)
   The relay
   Replacement of batteries of a key of remote control
   Replacement of the battery/lamp of a key with illumination
   Anticreeping blocking
   Illumination devices
   Replacement of lamps of external illumination
   Replacement of bulbs of internal illumination
   Removal and headlight installation
   Removal and installation of the electric motor of adjustment of range of light
   Removal and installation of the forward index of turn
   Removal and installation of a back lantern
   Adjustment of light of headlights
   Removal and control panel installation
   Removal and installation подрулевого the switch
   Removal and installation of switches and lamps
   Removal, installation and radio receiver coding
   Input of a code of a radio receiver
   Removal and loudspeaker installation
   Removal and installation of the aerial of a roof
   Additional installation of a radio telephone on in special way prepared models
   Removal and installation of the electric motor of a forward screen wiper
   Removal and installation of the lever and the electric motor of a back screen wiper
   Removal and installation of a cleaner of back glass
   Removal and installation of the tank from the pump стеклоомывателя
   Elements темпостата
+ Electroschemes

Replacement of batteries of a key of remote control



At removal of batteries check up, whether polarity is specified on batteries. If polarity is not specified, mark battery position.

1. Insert a screw-driver into a backlash between the block of the transmitter–1 and the main key–2.
2. Turn a screw-driver in an arrow direction and by that disconnect the block of the transmitter from a key.
3. Release the transmitter block, having pressed lateral clamps (are specified by arrows). Remove the transmitter block.
4. Disconnect the top battery–1 by means of a screw-driver from holders–2, as shown arrows.
5. Take out a contact plate–1. Thus turn it so that two direct edges adjoined to both clamps. The contact plate can be removed also by means of a screw-driver.
6. Disconnect the bottom battery by means of a screw-driver from holders.



At installation of batteries watch polarity. Polarity (+/–) is specified on the battery and the case.

1. Insert the bottom battery–4 positive pole (+) downwards into the case–5. The positive pole (+) is specified on the case.
2. Put a contact plate–3 on the battery–4 and turn behind clamps.
3. Put the battery–2 positive pole (+) downwards on a contact plate and fix.
4. Put the block of the transmitter–1 on the case–2 and fix.

The transmitter block is shown on an illustration turned.

5. Insert the complete block of the transmitter into the main key–6 and fix.

The key has транспондер the variable code, designated by beaten out letter W.

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