Hope you are enjoying your car preOats. Yes, my car is sorted but I did speak with the dealer last week, and he has said that he has been in to Audi Germany. They have admitted that that have been getting reports of same problem as ours. Therefore they are sending a technician from Audi to train their Garage guys on how to replace the seals in the sills. When they have replaced the ones in their existing stock cars successfully,they will recall my car and replace my seals. This should be in the next couple of weeks. There is no sound at all from it now, but apparently the water will lodge again over time and the noise will return. Advice to you, is to show this thread to your Dealer. I think it will avoid any in unnecessary work. Good luck!