Hey guys, I need some help. I recently purchased an 2004 A4 an it has ran perfect with no problems at all. But today I was using the sunroof and some plastic pieces shot off of it around the sliding rails. It still works like nothing happened at all. So my question is what do I do? Leave it alone? I think it may have something to do with it going straight up and down rather than back and forth and I never use it up and down anyway so if its that it then doesn't matter anyway. My next question is will it leak now? I do not think it has something to do with that but I am unsure. Any advice and suggestion will be helpful, I am simply looking for piece of mind. Thanks for the time and help.