Urgent electrical problem - Sunroof + windows stuck open!

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  • Mr Two
    E30 Addict
    • Jul 2008
    • 590

    #1

    Urgent electrical problem - Sunroof + windows stuck open!

    So, for the past few months, occasionally I lose power to my sunroof, blower motor, and windows completely. Smacking the fuse box seemed to help get it working again.

    They went out again, and nothing was helping, so I tried to go to an auto parts place to get another relay to replace the K7 relay. I thought that was the issue. Replacing it solved nothing.

    S52 swapped, but I still have the stock e30 fusebox

    Sometimes I also lose my blinkers and brake lights, and this is also fixed by whacking the fuse box.

    Any ideas? My car is sitting in my apartments parking lot with the windows open and no way to close them!

    e: The connections at the starter are tight.
  • StereoInstaller1
    GAS
    • Jul 2004
    • 22679

    #2
    Quick fix is to put ground on the green/black wire off of your starter

    Closing SOON!
    "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

    Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

    Thanks for 10 years of fun!

    Comment

    • Mr Two
      E30 Addict
      • Jul 2008
      • 590

      #3
      What would be the best way to do that? I suck at wiring.

      Comment

      • StereoInstaller1
        GAS
        • Jul 2004
        • 22679

        #4
        Find the one tiny little wire at/near the starter. Green with a black stripe, in a black sheath.

        Strip back an inch, wrap it around a bolt somewhere, then go try your windows.

        Closing SOON!
        "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

        Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

        Thanks for 10 years of fun!

        Comment

        • Mr Two
          E30 Addict
          • Jul 2008
          • 590

          #5
          So, I tried unbolting that wire and the post its attached to is broken now, and is spinning freely.

          Comment

          • Mr Two
            E30 Addict
            • Jul 2008
            • 590

            #6
            Got it off and grounded it, success!

            Hopefully the starter is fine, I'll find out tomorrow.

            Comment

            • Gladeoffer
              Member
              • Mar 2008
              • 48

              #7
              please post

              Aloha, I would be interested in what you find out to be the cause of power loss to these functions, please post your findings for the rest of us.

              Thank you,

              Comment

              • mr.vang
                R3V Elite
                • May 2010
                • 4371

                #8
                sometime it can be as easy as changing a wrong fuse number. i just change fuse 21 which was a #10 to #7.5 and now my speedometer, radio work like a charm. try looking through your fuse box and fix any unmatched number.

                fuse box guide
                Bought parts from me before? leave your feedback here

                Comment

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