thanks a lot. I did buy the 1998 Bentley manual, much better than Haynes despite the price. do I understand correctly that the glass needs to be removed in order to get the regulator assembly out so that the motor can be tested? The Bentley manual talks about the need to raise and lower the window during removing the glass, and that is something that I cannot do since the window is stuck in the fully closed position. even if I could move the glass up and down the procedure as described in Bentley seems difficult .... maybe time to give up?