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Thread: Horn Stopped working...!?

  1. #1
    Join Date
    Oct 2006
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    Reading, UK
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    Default Horn Stopped working...!?

    Hrm, after a particularly bad cut-up this morning, I realised that the horn in my car is not working....

    Anyone have any pointers as to where the loom comes from, what relay it runs through and any dodgy points in the loom to look out for?

    I was going to pull the steering wheel, but it's not a quick job because I have an airbag fitted to my car

  2. #2
    Join Date
    Jun 2007
    Location
    Cheshire CT
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    310

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    Quote Originally Posted by Ferret
    Hrm, after a particularly bad cut-up this morning, I realised that the horn in my car is not working....

    Anyone have any pointers as to where the loom comes from, what relay it runs through and any dodgy points in the loom to look out for?

    I was going to pull the steering wheel, but it's not a quick job because I have an airbag fitted to my car
    I've always found pulling the wheel to be fairly easy, have you done it before? It takes me something like 5 minutes to do.

  3. #3
    Join Date
    Jan 2004
    Location
    Yorktown, VA
    Posts
    216

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    Disconnect your battery and pull the airbag. You'll see several places where contacts are made for the horn to work. Pull all the pieces off (one side at a time) and clean vigorously with a small wire brush...I used brass. I found several places of light surface corrosion on mine. Reassemble all the fresh clean pieces and install the airbag. Connect battery, enter radio code (dammit), and enjoy how just a light thumb pressure will blast those who need to be reminded that they are not the only ones that are on the road. Cheers!

    zmuff--1989 535i 5-speed--17" E39 Style 32's--JC chip--UUC Short Shift--
    --Racing Dynamics Springs & Sways--Bilsteins--Yorktown, VA

  4. #4
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    Quote Originally Posted by zmuff
    enjoy how just a light thumb pressure will blast those who need to be reminded that they are not the only ones that are on the road. Cheers!
    Something that's always made me laugh is how quiet the horn is while you're inside the E34, whereas if you're outside or have the windows open you get blown away XD

    I'll pull the wheel this coming weekend, when I get back from Barneys place and see if I can get it working again.

  5. #5
    Join Date
    Jan 2004
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    Have you checked the fuses related to the horn? Like the #9 fuse, etc.

  6. #6
    Join Date
    Feb 2007
    Location
    New Forest, ,UK,
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    Got the very tool for that,and its metric! 400bar sure blows the crap out of horn.

  7. #7
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    Oct 2006
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    Quote Originally Posted by Barney Paull-Edwards
    Got the very tool for that,and its metric! 400bar sure blows the crap out of horn.
    Hah, it was fuse #9 in the end, turns out the magnetic AC clutch has disintegrated to the point where it's shorting internally.

    The wife switched the aircon on for a laugh a few days ago, so I know what's caused it now...

  8. #8
    Join Date
    Apr 2006
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    Chicago, Il. U.S.A.
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    Ferret,
    There is a fairly popular bumper sticker sold in the US that reads "Horn Broken, Watch For Finger" I would be happy to send one.
    "The gas pedal wouldn't go to the floor if it weren't meant to be there"

  9. #9
    Join Date
    Oct 2006
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    295

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    Dont even think about it. Those things are retarded, dont spread the plague overseas!

  10. #10
    Join Date
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    Quote Originally Posted by indierthanthou
    Dont even think about it. Those things are retarded, dont spread the plague overseas!
    Lmao, I'd get pulled over in a heartbeat

    Coppers here tend to take a dim view on that kind of stuff

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