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Thread: Firewall grommet

  1. #1
    Join Date
    Aug 2010
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    West Nyack, New York
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    86 635csi 98 740i 96 MB

    Firewall grommet

    I'm looking for the grommet in the cowl that's under the windshield wiper motor.

    I can't seem to locate a part # on Real oem. When the tuner replaced the grommet going to the ecu he had to measure the
    old one and find one with the same specs.

    Does anyone have a part # or has anyone replaced this grommet. Any info on finding a replacement will be appreciated.

    IMG_1679.jpg

    Thanks
    Bob V

  2. #2
    Join Date
    Apr 2008
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    Scottsdale, Arizona
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    81 euro 635, 4.4 X5
    The grommet comes as part of the wiring harness and is not available separately.You will have to get creative or hit the junk yards and find a good one on a harness or a butchered harness someone may have, slit the bottom and slide it off. Then put it on yours and seal the slit with silicone. Easiest way before getting creative.
    81 Euro undergoing total nut and bolt restoration
    pictures at: flickr.com/photos/bertsphotos

  3. #3
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    Thanks Bert, now I just have to find one in decent shape.

  4. #4
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    Boston, Ma
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    86 635,72 E3, 88M6,73 E9
    Worst case, make one from a wad of 3M strip caulk.
    Rob E3

  5. #5
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    Brookfield,CT
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    '92 325IC '88 635
    '88 635, '92 325IC

  6. #6
    Join Date
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    Jody's on track. Get as close an OD grommet as you can. Slit it and fit it over the harness. You can pack the ID with strip calk and form it to look really clean If you are somewhere near a decent size town there should be a shop specializing in seals and most probably different types of grommets. I have a couple of them in PHX so I know they exi1st
    81 Euro undergoing total nut and bolt restoration
    pictures at: flickr.com/photos/bertsphotos

  7. #7
    Join Date
    Mar 2019
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    Burlington, Massachusetts
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    My Cars
    1985 635csi
    Butyl tape.
    It's great stuff!

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  8. #8
    Join Date
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    West Nyack, New York
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    86 635csi 98 740i 96 MB
    Thanks, I'll follow up on these suggestions.

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