My 2 rear windows are very slow.
its very frustrating. if i roll either of them all the way down sometimes they fail to even respond at first. has anyone already went through and solved this? anything helps, i just want to be able to use my rear windows and not have to be nervous. all help is greatly appreciated.
Hi, not heaps but some info spread around the interwebs on this topic.
The rear windows, from what I know are designed to move (close) slower than the front. But not that slow where they creep up.
Several issues need to be addressed in order to cover all culprits.
1/ Sticky Regulators.
Remove the door cards and vapour barrier after you read this: http://www.bimmerfest.com/forums/sho...d.php?t=654966 and then remove (with a degreaser) what will appear to be gunked up factory issue grease from the regulators.
Apparently it gets quite gluggy and solidifies to a point over time. Remember you are dealing with a 30 year old car.
Then regrease all pivot points and moving parts on the reg with lithium grease. This is a light duty grease typically colored white which is also used on door hinges, hood hinges & latch etc. I remember also reading where it was recommended to use a teflon spray. The main point here is to remove the old grease, clean and replace it.
2/ Window Switches.
Also if you haven't done it, you should pull the switch units out from the centre console and polish up the contacts which can deteriorate over time. Take a read of this, take it easy and don't break anything: http://www.mye28.com/viewtopic.php?t=21355
3/ Window door guide rubber with felt guide.
After completing the above two steps and you still have no luck (unlikely) then you may want to r & r the door felt guides: http://forums.bimmerforums.com/forum...23&postcount=2
GL and report back and let us know how you went resolving this pain in the butt problem.
Try swapping your window switches first, then clean and lubricate the rubber and felt guides with some good spray silicone libricant. The worst case would require you to take the door panel off, inspect, clean and relubricate the window regulator mechanism.
Curious to know how the OP got on.
Did you fix your window probs?
Cleaning and lubricating the window regulator mechanism made a huge difference when I did mines. :)
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