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Thread: Strange noise

  1. #1
    Senior Member
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    Strange noise

    Hi got a strange noise from my xf

    Basically from 30mph upwards, but most prominent about 50 to 70 I get a whoom, whoom sound , speed related. It fades away about 90+ . It appears to be coming from the rear

    First thought was wheel balance or tyre issues but a visit to the tyre dealer to day showed no problems apart from the fact the rears were on minimum tread and fronts showed I may have a tracking issue.

    So ordered a pair of Michelin’s to replace the rear
    Dunlop’s.

    The other thought was bearing ...
    Car has done 37k miles
    Any thoughts any one ?
    XF MY15.5 3.0d S Portfolio Stratus Grey with Ivory interior.

  2. #2
    Member TopCat1127's Avatar
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    Could be either tbh, see what it's like after the tyres are fitted

  3. #3
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    ok so had 2 Michelins fitted to the rear. Fronts, OEM dunlops, are half worn so just had them balanced. Could see no obvious fault with tyres or wheels.

    tracking checked and adjusted, rear alignment slightly out but within tolerance.

    Upshot was on the M5 yesterday the noise appeared intermittent. sometimes about 60-70 it was quite pronounced other times it was quiet.

    So I'm inclined to think it was the tyres rather than a bearing.
    XF MY15.5 3.0d S Portfolio Stratus Grey with Ivory interior.

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