WARNING: This page is about a different car, the 2014 BMW X6 M, 2013 BMW X6 M, 2012 BMW X6 M, 2011 BMW X6 M, and 2010 BMW X6 M. However, it is still accessible from the selected car via links, so may be relevant.
0493731 513220 Suction cup MW
NOTE:
(Suction cup) For lifting out side windows [released]