1. Unscrew the view and remove the sunroof switch trim.
2. Unscrew the internal screw.
Be careful not to lose this screw, washer or shims as the sunroof will not operate electrically without them.
3. Close the sunroof by hand as far as it moves. Then insert a screwdriver into the hole and turn the drive shaft until the sunroof is fully closed.
Remember to have the sunroof system checked at a service station as soon as possible.