Yes, very frustrating problem. Wax definitely makes it worse. I had read a post where someone said applying wax would help, but that just made the noise worse. Seems keeping them more lubricated helps. I tried applying a bit of grease as others had mentioned, which works, but only for a day or so before it is either absorbed or dissipates. I'm not really going to make applying lube to my door on a daily basis part of my morning routine.

I love the vehicle and would buy it again, but I'm amazed at the number of rattles BMW expects owners to put up with