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Thread: e46 m54 high pitch sound

  1. #1
    Join Date
    Jul 2012
    Location
    Nor/So, CA
    Posts
    21
    My Cars
    2006 BMW 330ci 6MT

    Exclamation e46 m54 high pitch sound

    I was finally able to catch my car (2006 330ci 6mt with 194k miles) making this weird high pitch sound. I tried to take it into my independant shop, but the car never made the sound. Here is video of it. Thoughts?

    https://www.youtube.com/watch?v=yVS6th5rb14
    2006 330ci - 6MT with 194k miles
    RIP - 1998 323is - 5MT

  2. #2
    Join Date
    Mar 2019
    Location
    ATLANTA GA
    Posts
    571
    My Cars
    456 X3s
    Best I can tell/hear is that the vacuum hose is disconnected from the engine nipple...idk?

    See:https://www.bimmerfest.com/forums/sh...php?p=12912325

    Sent from my SM-J727T using Tapatalk
    Last edited by X3456; 04-21-2019 at 10:19 PM.

  3. #3
    Join Date
    Jun 2012
    Location
    New Mexico
    Posts
    915
    My Cars
    2003 328i
    Take the drive belts off, that will tell you if something belt driven is causing the noise. Don't run it like that for long though, the water pump would not be pumping.

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