Welcome! You are not the only one...this forum is full of great people who will help you, but searching these threads is probably your best bet. The forum sucks from a perspective of no Q&A.
As you can see in this link, you are not the first to ask
http://www.e90post.com/forums/showthread.php?t=1316244
That said, below is a good alternate source of info
http://www.fixmyvw.com/bmw-DIY/
Heck for the right price, my car may even be for sale soon (white, prem, winter...no sports, 71K mls, turboback exhaust).