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Thread: power window not working

  1. #1
    Join Date
    Dec 2006
    Location
    Boston
    Posts
    95

    Default power window not working

    My driver side window doesn't work any more. It was never fast and the motor always had to work hard. Then it did not go down once in a while (It always went up- probably less resistance) but now it stopped working.
    I can hear the click when I press the down button but nothing happens. The click is the same as if the window is closed and you push the up button. I think the click comes from the Relay Module (RM) or General Module (GM) but I don't know.
    I heard that the GM does stop any window operation if more than 35 A are used.
    Can it be that the mechanical resistance in the guides etc is too high that the motor can't turn? Is it a mechanical problem or an electrical problem?
    Does anyone know? Martin

  2. #2
    Join Date
    Mar 2004
    Posts
    454

    Default

    Quote Originally Posted by werminghausen
    My driver side window doesn't work any more. It was never fast and the motor always had to work hard. Then it did not go down once in a while (It always went up- probably less resistance) but now it stopped working.
    I can hear the click when I press the down button but nothing happens. The click is the same as if the window is closed and you push the up button. I think the click comes from the Relay Module (RM) or General Module (GM) but I don't know.
    I heard that the GM does stop any window operation if more than 35 A are used.
    Can it be that the mechanical resistance in the guides etc is too high that the motor can't turn? Is it a mechanical problem or an electrical problem?
    Does anyone know? Martin
    Wouldn't be surprised if the gears in the motor are shot - take it off?
    On mine the motor/gearbox was bad and replaced as a unit.

    Mine also had window actuator gears bent as well and I bought a replacement that was not OEM - big mistake, it wore out in 3 months....
    Last edited by Scott C; 09-09-2007 at 12:56 PM.
    1995 BMW 525i w/139K miles, EAT Chip - (Gone)
    07 525i 22K, 07 328xi (41K)
    1982 Mazda RX-7 w/147K miles (Back again!)

  3. #3
    Join Date
    Dec 2006
    Location
    Boston
    Posts
    95

    Default

    Thanks

    I opened the door panel yesterday in order to see what the motor and gears look inside. They actually looked fine. The 'click' did not come from any Relay. I was wrong. It came from the motor directly. After some tweaking and pushing the window started working again. I think it was just the mechanical resistance in the guide rails. I put some silicone spray to it and now it works again. Not sure if there is a better way of lubrication for the guide rails? Or do you think the weather stripping is the problem with resistance? Martin

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