5. Assembly

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Apply a thin coating of anti-friction agent to the reverse side of the window guide seal only
Perform fitting within 30 minutes of applying anti-friction agent
Anti-friction agent dries after fitting and becomes sticky