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Thread: Thumping noise when coasting

                  
   
  1. #1
    Junior Member
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    May 2017
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    Catonsville, MD
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    Thumping noise when coasting

    I'm experiencing a thumping noise when I get off the gas and coast. I hear it mostly over 40mph. When I get back on the throttle the noise gets quiet or goes away completely. Sounds like "duh duh duh duh". Again, only when I'm off the throttle and coasting. Tires are couple weeks old, and I've had the shop recheck the balance. Shop drove it and couldn't find any obvious problem. It's a 2009 328xi wagon.


    Any ideas of what I should look into?

  2. #2
    Junior Member
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    Jun 2018
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    Silver Spring, MD, USA
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    Would it be possible to link or upload some kind of audio/video when it happens? That would help a lot.

    Also does the sound affect driving? Can you feel it? Is there a general area the sound is coming from?

    Hopefully it's nothing,

    Julian

  3. #3
    Senior Member 1996 328ti's Avatar
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    Jun 2004
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    Greenville, SC
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    3,422
    Sounds driveshaft related. Center load bearing, u-joint?
    ...steven
    BMW CCA #146825

    318ti.org | bmwcca.org/forum

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