2002-2008 7 Series (E65/66) Water Ingress
… BMW 7 Series (E65/66) Water Ingress
Symptom: The front carpet on either the driver or passenger side are wet and there are water stains on the headliner.
Cause: The sunroof outlet water valves clogged from dirt and debris.
Correction: Partially remove the all inner fender wells. Remove and clean the water outlet valves at all four corners of the vehicle.