Adjusting pretension
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.
Slacken nut (3) with reversing ratchet (2) of special tool 51 3 300 (consisting of 51 3 301, 51 3 303, and 51 3 304 .
Turn the knob (1) on the special tool 51 3 300 to turn the stud (4) and thereby alter the pretension.
Tighten nut (3).
Tightening torque 51 33 1AZ, see 51 33 POWER WINDOWS, FRONT .
Check adjustment, repeat procedure if necessary.
NOTE:
After completing adjustment work, it is essential to initialize
the power window unit.
Checking run-in of door window glass:
Door window glass must strike the inside of the seal.
Check adjustment of rear side window , adjusting if necessary.