51 00... Notes on fitting window guide seals: Installation

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 window guide seal only
Perform fitting within 30 minutes of applying lubricant
Lubricant dries after fitting and becomes sticky