[200q20v] Window/Window Regulator Adjustment Help Needed

[Steve Bednarski]

This question is with regard to my 1990 200Q 10V Avant.  I hope it is O.K.
to ask on this forum as the procedure should be the same as for my 20V.

I just installed a new window motor/regulator assembly in the passenger rear
door of this car.  It is all working beautifully except the window does not
stop flush with the rubber molding at the top of its travel.  Instead it
stops between 1/8 inch and 1/4" shy of the top.

What can I do to make the window fit flush to the top?

Any help would be appreciated.

Steve B.