Attention: Close sliding roof panel before removing. If the motor fails, close the panel in an emergency way. If the panel does not close because the gearbox is stuck, see the instructions at the end of the section.
Withdrawal
Remove the interior light cover with a narrow screwdriver together with the lamp board.
Remove trim
If the sliding roof panel is open, close it manually using the rod wrench. The key is included in the on-board tool kit.
Disconnect the connector of the switch, to do this, move the lock -4- to the side.
Unscrew 3 bolts -9/10- and pull out the drive unit.
Attention: The bolts are locked and therefore must be replaced.
Disconnect the connector from the rear side, while squeezing the retainer tabs. After that, remove the connector from the guide, remove the drive unit.
Installation
Attention: The sliding roof panel must be closed.
Before installing, make sure that the mark -6- and pin -7- are aligned with the centers of the axes -5- of the drive assembly. In this case, the motor is set to its initial position, which corresponds to the position with the roof panel closed. If required, turn the motor accordingly with a spanner wrench.
If switch-on faults have previously been observed, have the microswitch -arrow- of the sliding sunroof replaced by a workshop.
Insert drive unit, connect and secure with 2 short bolts -9- and 1 long bolt -10-. Be sure to install new bolts. If there are no new bolts, pre-coat the threads of the bolts with locking paste.
Connect switch connector.
Install trim and dome light.
If it is not possible to close the sliding roof panel because the drive gearbox is jammed, proceed as follows:
Remove defective motor.
Install a new motor.
Close the sliding roof panel in an emergency way (bring it to its original position).
Remove new motor.
Bring the new motor to its original position.
Install a new motor.