Go to the dealer and pretend to buy a new BMW...take it from that one.
That, or just order it from the parts guy and wait 2-3 days.
You can search realoem.com for PN. You can always get every part for every bmw at the dealer.
When you look at this picture you'll see why it's probably much easier to just go to the dealer, show the parts guy a picture of what you want, and let him or her figure it out.
vehicle trim/ various body parts/ sealing caps and plugs
I wouldnt trust the dealer to figure that out :eek: