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#1
07-25-2008, 01:32 PM
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300e back windows dont go down
I have another question about my 1987 300e (i just got it from my dad so i have to deal with the problems he neglected lol) but anyway, the back two windows don't go down. you can push the buttons and nothing happens. The child safety switch is broken and i'm thinking that has something to do with it. if i replace that switch, would that solve the problem? I found one on ebay for a SEL model but i'm not sure if it would work on mine. Thanks for any input.
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#2
07-25-2008, 05:01 PM
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It might solve the problem or they might be broken individually. EPC can tell you if the E and SEL use the same switch. You might also be able to just wire around the switch.
https://epc.startekinfo.com/epc/welcome.jsp
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#3
07-25-2008, 06:11 PM
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Thanks i'll give that a try
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#4
07-26-2008, 07:14 PM
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Try cleaning the buttons? The inside of the buttons get a fair amount of wear and tear and tend to gum up. They simply snap apart (be careful, there are two tiny ball bearings inside). If you look at the contacts, most likely they are covered in black stuff from old age which you can clean off with some Q-tips and rubbing alcohol. Reassemble and put the switches back in to try them. I also think that the front switches must be operational or at least hooked up to allow power to go to the back windows.
__________________
87 300E 202k on the clock
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#5
07-27-2008, 11:34 AM
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If all the switches are good (and it is a good idea to clean them) and you've power where it's supposed to be, check the wires that come out of the pillar between the front & rear door.
That's where mine popped out of the braided cover and broke. Cut the wires, slip on some shrink wrap tubing & re-solder back together. If you have the rear door panel off you can re-adjust the wiring harness so it doesn't bunch up and break again.
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#6
07-27-2008, 04:28 PM
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Thanks for the tips. I tried cleaning the buttons with some electric contact spray, but still no go. The wiring looks good and like i said the two front windows work. The only thing is that the safety button is broken, and i totally removed the switch and they still dont' work. I don't have a new switch yet b/c i'm waiting for it to come in. Perhaps that switch is causing the problem. I hear click noise from the back windows when i press the buttons, but nothing happens. i can't imagine both motors being broken. gota love mercedes and their back windows
lol
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