Two problems related to sun roof have been reported for the 2003 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Audi A4 based on all problems reported for the 2003 A4.
The Audi A4 1. 8t that I purchased in Dec 2002 has a sunroof/moonroof assembly. A few times I have noticed that the sunroof opens and closes on its own while the car is in motion.
The sun roof on our Audi spontaneously shattered while we were driving on the highway. It more or less exploded. Glass covered the inside of the car. No one was injured but we almost caused an accident due to the fact this occured during rush hour traffic at 65 mph. Four to five inch diameter pieces of glass fell into our daughters child seat in the back seat. We had had problems with the window opening and closing on it's own and Audi had worked on the window prior to the incident. The window had once again opened on it's own and it was closing when it exploded. It seemed to explode at the end of closing when the window raises upward to seal. Audi claims that the incident could not have happened the way I have stated. I found several other incidents reported on the internet of sunroof explosions on BMW, Volvo, Toyota and Lexus automobiles. Although no one was injured I feel as though we were lucky. If my daughter had been in the car at the time she would have been hit by large pices of glass or an accident could have occured as a result of the glass falling into the drivers eyes. My hair was full of glass. I would like to know how many cases of similar incidents have been reported to your agency. I tried to look it up on the internet but the search is specific to year, make and model of the car. I would appreciate any information you could provide on sunroof breakage on all other automobiles as well. The window has been replaced but Audi refuses to cover the window under the warranty. I was quite surprised to find that a sunroof is not shatterproof glass.