Clockwork
Did they tell you if the new seal would improve this? I'm thinking about ordering the seal and change it this weekend.
I guess it's the following seal:
nr. 3 in the diagram
http://www.realoem.com/bmw/diagrams/q/l/378.png
There is also the seal all around the panoramic sunroof, nr. 3 in this diagram:
http://www.realoem.com/bmw/diagrams/s/e/367.png