Roof in 451 leaks, (not convertible)

Hello dear community, I have been a member of this round for a few months and read again and again and some amused some reports. So it should be. Now I have a question myself. My little 451, Bj early 2008, 38000 km, suddenly has a headache. First after the hand wash I saw some water drops on the roof above the driver’s door, during the subsequent dry drive I had a clear air whistle in the interior. With the hand on the roof, inside over me ha It’s not the case on the right. Has anyone already observed similar things? SC Düsseldorf refuses to accept any claims for culant or guarantee. Would be nice if someone from the experts could give me some tips. The fun should cost 500.- EUR!!! PS: It’s not a convertible, I’m afraid only if the roof breaks further, it’s soon one. Dear Greetings, Michael