The electric motor is located at the rear of the roof.
Removing
Remove the sunroof switch without disconnecting the connector.
Pic. 7.123. Removal of facings of racks of an aperture of a windshield
Remove the plafond and lining of the pillars of the windshield opening (pic. 7.123).
Pic. 7.124. Removing the handrail
Remove the front and rear handrails using the special tool (Sag. 1597) (pic. 7.124).
Remove the rear holder and two rear fasteners.
Disconnect and disconnect the sunroof motor connector.
Loosen the fixing screws and remove the connector holder (pic. 7.124).
Pic. 7.125. Removing the connector holder: 1 - fastening screws
Installation
Installation is made in an order, the return to removal.
Be sure to initialize the system after removing/installing the motor.