Sorry if there is already a thread on this, but I couldn't find one for these particular pieces. The rear quarter beltlines are multi-piece components, consisting of the molding, and an insert (or multi-piece insert) onto which the molding is attached. It doesn't seem to want to be pulled straight out, and it won't slide out either. Any help on this would be greatly appreciated.

 

They pop out with trim tools and you can work them up and out.

http://www.realoem.com/bmw/enUS/show...diagId=51_6697

http://www.realoem.com/bmw/enUS/show...diagId=51_6736