I have a 2008 335i E90 that I bought a month ago. I used the instructions in the Owner's Manual and the info I found in Post #6 in the following thread to pair the roaming opener in my garage to the mirror controls in my car:
http://www.e90post.com/forums/showth...rage+issues%3F
So, unlike the above, the Homelink for my 2008 E90 was not outdated and did not require an adapter to make it work. Good luck!