5. Assembly

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

Apply a thin coating of lubricant to the reverse side of the rubber window seal only
Perform fitting within 30 minutes of applying lubricant
Lubricant dries after fitting and becomes sticky