Two problems related to side/rear glass 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 rear glass window of the convertible top of my 2003 Audi a 4 has come loose. We paid a car upholsterer to glue it back it in but it is loose again. It would be very dangerous if it fell out while traveling.
Rear window glass in convertible top fell inward towards the back of the passengers. Glass did not fully detach from the top.