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

Safety locks


Protection of electric contours of the car is provided with application of a combination of safety locks, breakers of a chain and fusible inserts. The burnt down safety lock is easy for distinguishing from serviceable by survey of its transparent plastic case.

Attentively examine a safety lock about its revealing перегорания. If the safety lock outwardly looks normally, but suspicions on its malfunction have remained, make conductivity check between ножевыми the plugs acting from its case.


1. Before safety lock replacement necessarily switch off the corresponding consumer and ignition.
2. Safety locks are in the block of safety locks from the left face party of the panel of devices behind a cover.
3. Open a cover for what insert a screw-driver with a flat working part from below into a backlash (the marksman on an illustration) and wring out a cover.
4. The plan of placing of safety locks is on an inside of a cover of the block of safety locks.
5. Additional safety locks are on the relay panel, and also on the additional carrier of the relay behind the panel of the relay and in the holder of the storage battery.
6. At cars with the diesel engine the safety lock for preliminary heating is in a box of safety locks on the storage battery.
7. A sign of the burnt down safety lock is the fused metal strip.
8. Remove from the interior of a cover plastic clips and take out the failed safety lock.
9. Insert a new safety lock on the same current strength. The nominal current strength of a safety lock is specified on a handle underside. Besides, the safety lock handle has colour marks on which also it is possible to define a nominal current strength.
10. Again establish into place a cover of the block of safety locks.
11. If after a while the new safety lock again fuses, it is necessary to check up a corresponding electric chain.
12. At all do not replace a safety lock with a wire or a similar material as it can lead to serious damages of an electric equipment.
13. It is recommended to have always in the car spare safety locks.

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