Sunroof / Moonroof: Service Precautions
Glass surfaces are best cleaned with the use of a commercially made cleaner. Do not scrape off smears from bugs, road tars, or similar objects, use warm water or the recommended solvents to remove.Do not use putty knives, razor blades, steel wool, or other metal objects to remove deposits from the glass.
All sunroofs are installed with drain tubes that are located in either the "A", "B", or "C,, pillars. These drain tubes must be kept open to prevent water from entering the passenger compartment.