Today the driver side front power window in my '87 300E stopped working -- when I push the down buttom, the window goes down about 1/4 inch and then it stops and makes a loud, repeated ratcheting sound but won't budge. I can make it go back up to the top but it will do the same thing when I try to make it go back down. Any ideas on what this is? I will try to fix it this weekend. Thanks for any help.

The good new is the motor is working and they come separate. The only way to find out for sure is to remove the door skin.

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J.H.
'86 300E

Go hunting, I think you'll find a few short teeth on the regulator.




Joe

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Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364

Yep, I had the same problem.
The old regulator lost about 4-5 teeth.
A new regulator solved it.

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1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
609 Certified

I removed the door panel and saw the regulator was missing several teeth. I got the window to start working again by pushing down on the regulator arms, and now the window is functioning ok for the time being. I'm going to replace the regulator soon. Thanks for the tips.