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#1
06-04-2008, 11:49 PM
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w123 front window problem
The motor runs,i hear it,but it doesnt move the regulator.
I have pulled the motor and regulator out,now i dont know how else to proceed or how to test it even,anyone care to help? Thank you 
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#2
06-05-2008, 12:06 AM
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I hope someone else has a better answer but I think you have already tested it. The motor turns but dose not turn the regulator; my best guess is that this indicates whatever is between the electric motor and the (and transfers the power to the ragulator) regulator is worn out.
__________________
84 300D, 82 Volvo 244Gl Diesel
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#3
06-05-2008, 06:21 AM
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There are gears in there. It sounds like you have a stripped one. I have some used motors with gearbox available.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#4
06-05-2008, 06:53 AM
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You can put 12 volts to the two leads from the motor. The motor has a floating ground. Swap the leads to reverse direction.
Observe if the regulator moves.... Most common failures are: 1. Regulator detaches from channel on bottom of glass. 2. Gear teeth strip out, usually at the point of closure. Jim
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14 E250 BlueTEC black. 45k miles 95 E320 Cabriolet Emerald green 66k miles 94 E320 Cabriolet Emerald green 152k miles 85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles
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#5
06-05-2008, 07:12 AM
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Ditto to what Jim said.
When you removed the regulator, were there any bolts missing or loose? The factory uses a little blue loctite on there. Sometimes people dont put any after stuff been replaced and the bolts work themselves loose and cause a similar problem to what your describing.
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#6
06-05-2008, 11:11 AM
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Bolts all seem stock,im a little confused as to how to test the motor,the green/black cable seem so short,do i put them both onto the + on the batery,please explain,now that i have it out id like to learn more and maybe fix it.
Is the motor detachable from the regulator? is so can i use a motor from a driver side on a regulator for the passanger side? Anybody have any pics? Thanka crew im fighting here. Got a rear driver side w124 window out of commision as well,may need the parts for that one too,looking for motors nd regulators with life in them.
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