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Old 02-28-2011, 11:39 PM   #9
Registered User
Join Date: Sep 2010
Location: md
Posts: 27
My Ride: 02 bmw 325xi
Me & a buddy just replaced my driver side today with non-oem and when we took the old one out you can see there is no grease or oil along the stock regulators. We installed the new one with new motor and it was still slow and stopped every 2 inches on the way up; so we took some some kind of brake grease and ran it up and down the regulators & after a few runs up and down the window works great. Try greasing up stock and see if it starts working better if you wanna try to save a few bucks.
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