While driving the glass of the passanger side exterior mirror came loose and was flapping by the cable. Chipped mirror, almost broke the passenger window (left marks/scratches from impacting window) and left 10-15 scratches in the door's paint. Dealership stated they replace about two a week. Failure rate appears high if that is the case. No known cause of failure, was not struck or anything. Suspect vacuum forces from air flow over mirror housing overcame the plastic retaining clips. Dealer states not a warranty repair saying it must have been struck although no visible evidence exists on housing and nothing was in the vicinity of the car when it occurred, have contacted VW of America and initial response is "we stand by our service center's decisions."

- Alexandria, VA, USA