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Thread: What’s this noise?

  1. 18th February 2022, 08:20 PM #1
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    What’s this noise?

    This could be a regular segment on the forum.
    I’m getting a strange noise and vibration from front suspension under braking only.

    So, under mild braking:
    Steering wheel feels like a left/right pulling (I initially thought this was warped rotors)

    This was then added with a soft thumping noise (like the tyre noise when you drive over the road cat eyes). (Not the clunk from LCA, and repetitive under braking).

    Any ideas?

    Cheers
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  2. 18th February 2022, 08:35 PM #2
    Eric SDV6SE's Avatar
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    What age vehicle? Most likely wheel bearings if still original. If under braking check caliper slides and possibly sticking pistons. Check brake pads also
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  3. 19th February 2022, 08:25 AM #3
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    Quote Originally Posted by Eric SDV6SE View Post
    What age vehicle? also
    Still a baby…MY16 / 105,000 kms
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  4. 19th February 2022, 10:48 AM #4
    DiscoJeffster
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    Quote Originally Posted by SimmAus View Post
    Still a baby…MY16 / 105,000 kms
    Have you checked the lower control arm bushes. That causes the symptoms you describe
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)
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  5. 20th February 2022, 08:41 PM #5
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    Quote Originally Posted by DiscoJeffster View Post
    Have you checked the lower control arm bushes. That causes the symptoms you describe
    Thanks…I have initially discounted the LCA bushes..as these usually cause a clunk noise over speed bumps / hard braking.(well, at least in my past experience)
    I don’t get that…it’s only on braking…and more of a thump noise than clunk (very scientific description..I know)..
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  6. 22nd February 2022, 08:56 AM #6
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    I found on mine that the upper control arm bushes go too, although this was at 200000km.clunking under braking tells me something is loose or not moving as it should. Need to check all ball joints for play. Suggest a suspension place looks at it unless your going DIY.
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  7. 20th April 2022, 07:53 PM #7
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    Just to close out my own question:

    Had the LCA replaced today (107k kms) so thought that was a good first step.
    Problem fixed

    Diagnosed: one ball joint shagged, LCA bushes on their way out.

    Rotors and wheel bearings checked…all good.

    She now drives like new…happy days…
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