Ideal adjustment, longitudinal direction
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.
Side window glass (1) must be positioned at distance (A) to door window glass (2).
Measurement (A) = 19 ± 1 mm
Parallelism deviation ± 1 mm.
Side window glass (1) may have a max. underprotrusion (B) to door window glass (2).
Measurement (B) = 2 mm