I've noticed a small but annoying sound that my 09 E has started to make. When I hit a decent size bump, or go over road contour that might add a twist to the body, there is a soft sound that comes from the top of the driver's door (just above my ear!) that I can only describe as weather stripping rubbing together....almost like the door may be moving within the door frame. So my questions are; 1) have any of you noticed something similar....and; 2) am I just being too darned picky?!