Audi A3

since 1997 of release

Repair and car operation

Check of the electric motor of a screen wiper

GENERAL INFORMATION

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

Designation of plugs

On the electric motor there are following plugs:

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

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

– The plug of 53 b submits tension for the second speed of a screen wiper (an auxiliary winding).
– Via the plug 53 е the electric motor is braked at return after shutdown that the screen wiper did not pass through the provision of a parking.
– Are available not always in stock: the plug 53 with submits a food to the pump of a stekloomyvatel.

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:

PERFORMANCE ORDER

1. Rasstykuyte the 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 carry out 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 of 31 electric motors.
3. Now the electric motor should to turn on depending on the used plug on I or the II step. If it does not occur, the electric motor or the corresponding step have defect. Remove the electric motor, thus address to the subsection Removal and installation of the electric motor of a forward screen wiper.