I have a 2004 A8L. Several weeks ago, I noticed that the right passenger side was somewhat low. Then I would "raise" it up each time before driving. Soon, it wouldn't raise any more. Now the right side is lower than the left and is almost touching the ground. I took it to the Audi dealership and their service was terrible. I dropped it off overnight but no one called me the next day. When I called I was told they couldn't figure out where the leak was coming from, next call, they had closed. Next day they told me that I have to change the entire assembly because their is a leak on the airbag. I had this weird feeling that that was a conclusion they came to because they simply couldn't figure out the problem. Unfortunately, I am not an MD PhD and don't have that kind of money to throw around. What are my options? If it is the airbag, is it repairable or must the entire suspension system be replaced?