I phoned the dealership, they said there’s nothing they can do & told me to phone the warranty company. I phoned them they said unfortunately water ingress isn’t covered on a used car. So basically I now have to cover the cost of repairs myself, which is going to be over a thousand pounds. If I knew beforehand TT’s had this problem I would have never bought one. Absolutely terrible design flaw if you ask me. I love Audi’s I’ve had two hatchbacks and never had any problems, however after this would not recommend a cabriolet to anyone. I was so excited to get a TT convertible always wanted one, just a shame this has happened and so soon after buying the car.