Hi, just got my first BMW, its a 318 Coupe, looks good but I think I am going to be having a few problems with it!

First - and most important with the weather right now - the passenger side electric window works but stops about 2" short of where it should stop at the top and its raining in.

I was ready to take the door card off when I realised it has side airbags - how do I get in there without disturbing the air bags? - and - will it be easy to see what the problem is when I get in there?

Thanks for any help/suggestions on how to fix it...