It would appear that the motor is not functioning and that Dave is, unfortunately, correct.

The last time I pulled the regulator, I believe that the window had to be in the up position. After you unbolt the regulator, you may be able to move it so that the sliding piece disengages from the channel at the bottom of the glass. I have not done the regulator on the SD in a couple of years so I'm providing advice based upon old experience.

Just wanted to post a picture of my daughters regulator. As I said the regulator was bent. this prevented the proper gear meshing and the window would click operated due to the gears not meshing correctly. The flat area should be "flat" not warped

Heres the unit new.

http://img.eautopartscatalog.com/live/O304015548OES.JPG


Dave

Attached Thumbnails

 

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

When i was working on my windows i had the front passager window not working i cleaned the switch and it started to make noise.

I greased the window regulator and it's working but is noisier then the driver side

If i remeber correcty the window regulator can be removed (maybe a PITA) and then cleaned, greased etc etc

If is not broken don't buy a new one... at that price it better be a golden window regulator (with some rare stone as a side decoration)

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2001 Jetta TDI .205 injectors + Upsolute "Fast car"
1983 MB 300 SD "Ze Panzer" SOLD
1997 MB 230 C

There may be nothing wrong with the regulator.

It's the motor that appears to be non-functional.

However, this cannot be confirmed until the regulator is removed from the window and power is again applied to the motor leads to see if any response occurs.