Hello! I found tonight that my left rear window won't go down. I can hear the motor whirring and it sounds like it's trying to engage the regulator teeth, but is not succeeding. Ever since I got the car, I had noticed that the window would try to jump if i held the switch down after the window got all the way up. It almost sounds like the motor's loose on the mount.

Does that sound right, or is the regulator dead? Given that the motor's turning, I presume it's fine.

Also, how do I get the door panel apart to tighten the motor or replace the regulator?

Thanks in advance!

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2001 VW Jetta TDI, 5 speed, daily driver
1991 Ford F-350, work in progress
1984 Ford F-250 4x4, 6.9l turbo diesel, 5 speed manual
Previous oilburners: 1980 IH Scout, 1984 E-350, 1985 M-B 300D, 1979 M-B 300SD, 1983 M-B 300D
Spark-free since 1999