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

Check of the electric motor of a screen wiper


The screen wiper electric motor is in a water modular compartment under a windscreen. For check it is necessary to remove a corresponding cover.

Designation of plugs

On the electric motor there are following plugs:

– The plug 31 is weight joining (the general for all electric equipment of the car).
– The plug 53 receives pressure for the first speed of a screen wiper.
– The plug 53 and feeds with a current (+) extreme position of a screen wiper.

The electric motor receives pressure through a brush until the cleaner will not return to a starting position when the driver will switch off a screen wiper.

– The plug 53 b submits pressure for the second speed of a screen wiper (an auxiliary winding).
– Through the plug 53 е the electric motor is braked at return after switching-off that the screen wiper has not passed through the position of a parking.
– Are not always available: the plug 53 with submits a food to the pump стеклоомывателя.

Check of the electric motor of a cleaner

At first it is necessary to find out that has defect, the electric motor or there is no food. Thus it is necessary to operate as follows:

1. Расстыкуйте a multicontact socket at the electric motor.
2. Bring 2 auxiliary cables (+) and (–) from the storage battery of the car to the screen wiper electric motor:

– One cable spend from the positive plug of the battery to the plug 53 or 53 b.
– The second cable bring from the negative plug of the storage battery to the plug 31 electric motors.
3. Now the electric motor should to join depending on the used plug on I or II step. If it does not occur, the electric motor or a corresponding step have defect. Remove the electric motor, thus address to subsection Removal and installation of the electric motor of a forward screen wiper.

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