I just bought a 2000 S500 to replace my totalled 1997 S500. It has 99,000 miles and is in great shape. Of course, as with any used car, it has certain issues.

The driver's side window is not working right. It expresses down ok but stops about 5 inches from the bottom. I can press the switch and manually lower it rest of the way but it will not express up at all, though I can hold the switch and it will go up ok.

I've tried the reset procedure multiple times but to no avail. The other 3 windows and the sunroof express fine.

Does anyone have an idea of what might be at fault?

Thanks

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2000 Mercedes S500
1990 Mercedes 560SEL
1970 Triumph Spitfire