Removing
Disconnect ground cable (-) from the battery.
Attention: This erases the entry in the memory of the on-board computer. In particular, a fault record and a radio code. Before disconnecting the battery, read the contents of the section «Removing and installing the battery».
Mark the position of the cleaner on the glass with adhesive tape so that the levers can then be set to the same position.
Loosen the screws securing the levers and remove the levers from the axles. First remove the axle covers with a small screwdriver.
Windshield cleaner. Loosen the screws at the lower edge of the wind deflector and remove it.
Rear window cleaner. Remove tailgate trim. For vehicles up to 4/87, press the latch inserts inwards.
Disconnect the plug connection of the wiper motor.
Windshield wiper
Disconnect the motor from the drive bracket. To do this, unscrew the three screws.
Disconnect and remove the drive levers, see fig. G-6004.
Rear window cleaner
Loosen the union nut of the cleaner shaft.
Unscrew the three screws securing the electric motor and remove it.
Installation
If a new wiper drive motor is installed, first bring it to the position corresponding to the end position of the wiper brush. To do this, dock the plug, turn on the electric motor and let it run for 1 minute. After that, turn off the electric motor, leaving the cleaner in the extreme position. Disconnect plug connection.
Windshield wiper
Install the drive bracket and tighten it to 10 Nm.
Connect the plug connection. Turn on the electric motor by setting the lever to the extreme position.
Install drive hoses.
Fasten the electric motor with screws.
Install the wind deflector and fix it with screws.
Install the wiper arms in the end position on the support and fasten with a force of 20 Nm.
Rear window cleaner
Install and secure the tailgate motor.
Screw the union nuts onto the cleaner shaft.
Connect the plug connection and bring the electric motor to the stop position.
Install the wiper arm so that it is parallel to the lower edge of the glass in the extreme position.
Install the covers on the axis of the cleaners.
Connect ground cable (-) with rechargeable battery.
Check the operation of the cleaner.
Reinstall the upholstery of the tailgate of cars up to 4/87 of release, press in the latches of the insert.
Set the time on the clock, if any. Enter the code into the radio.