I'm fixing my old '86 190D drivers window. It was stuck in the up position. I removed the motor and found that a plastic guide for the verticle channel was broken. I fixed the guide and verified the motor was working. )Applied power in both directions)

I put everything back in place. Window goes up and down. Great!

Put window all the way up. But won't come back down again. It just clicks. Is there a stop that the motor hits or something? I see that there is some kind of set screw.

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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)