Here's a link to the appropriate page for the front door sound/vapor barriers on realoem.com, a great resource for locating part numbers for our cars:
http://www.realoem.com/bmw/enUS/show...diagId=51_5851.
Of course, you'll need more than just the corresponding vapor barrier. Search for a DIY for the removal/replacement procedure. If you're not up to the task, find a shop you can trust to do the work.
You're welcome
