Sunroof / Moonroof Switch: Service and Repair
Sunroof control switch (E139), removing/installingRemoving
Remove sunroof drive cover
Remove interior light assembly
Turn control switch until slot is visible in housing
Insert screwdriver, as shown, up to shaft
Carefully pry off control switch knob
Remove nut, take out switch
Installing
Reinstall in reverse order, noting the following:
Ensure lug (arrow) on sunroof control switch engages in slot in cover
Torque A 1.5 Nm (13 in. lb)
Press knob onto shaft
Retaining spring (arrow) must face rounded side of shaft
Check sunroof for proper function