Checking adjustment
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Open door window and side window.
Close both windows simultaneously and check run-in of side window glass to door window glass.
Close retractable hardtop.
Hardtop seals must not be damaged.
Check run-in of both windows in hardtop seals.