BMW - Quarter glass door replacement 

Tutorial - Replace rear door glass.
3 Series, 5 Series, X 1, X 3, X 5, X 6, E 46, E 90, E 91, F 30, F 31, E 60, E 61, F 10, F 11, E 84, F 48, E 83, F 25, G 01, X 4, F 26, G 02, E 53, E 70, F 15, E 71.