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BMW E60 Thrumming noise at speed

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  • 21-08-2012 12:46pm
    #1
    galvo_clare
    Registered Users Posts: 672 ✭✭✭


    (Apologies - this was also posted accidentaly in the mIn Motors section)

    Hi

    For the past few months I've noticed a strange thrumming/drumming noise from my 2008 E60 520d. I noticed it first at speeds in excess of 100 km/h or so, but now I'm getting it as low as 60 km/h.
    I suspected a wheel bearing or something but nothing else seems wrong with the car and it's as economical as ever.
    Last week, I brought it to my dealer to get the battery recall done along with a few other bits and I asked them to take a look, even just to see if the noise was in my imagination.
    They agreed that the noise was there and reckoned my rear tyres were wearing unevenly due to tracking and that this was the cause of the noise.

    I brought the car to my local tyre guy this morning and we put two Continentals on the back - I have Goodyear NCTs on the front but I fancied a change. All four are non runflats.
    He found the tracking, front and rear, was a bit off but the camber was fine.
    All tracked correctly, I went back out and of course, the noise is still there. It's definitely not coming from the engine. If I declutch at speed and let the engine idle, I still get it, so it's coming from the transmission/differential/tyres side, or maybe the engine mounts.
    The mileage is around 46,000 km. The car gets plenty of long journeys but is regularly on the driveway for a week or two at a time, hence the low mileage.

    Anyone have any ideas? I'd be most grateful.
    Tagged:


Comments

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    #2
    listermint
    Registered Users Posts: 33,857 ✭✭✭✭listermint


    Sounds Like wheel bearings tbh did you local guy take it for a test drive.

    A good test drive with some weavey straight line driving will give a good indicator


  • Options
    #3
    dvae
    Registered Users Posts: 335 ✭✭dvae


    http://www.youtube.com/watch?v=WXZYxQbgnEk&feature=related


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    #4
    haulagebasher
    Closed Accounts Posts: 309 ✭✭haulagebasher


    Are there any loose covers or anything under the engine bay or anyting? These can flap around and vibrate in the passing wind at high speed and make noise. That could make thrumming noise. Wheel bearings are more of a whirring noise.

    OT: My names not Fr. Austin Purcell by the way, AKA the most boring priest. Whats your favouite humming noise. hhhhMMMMM, that a fridge.


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