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knocking sound when going over potholes humps

Discussion in 'A3/S3 Forum (8L Chassis)' started by anilkumar, Aug 21, 2010.

  1. anilkumar
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    anilkumar Member

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    [Aug 21, 2010]
    MY a3 has strated making a knoking sound when going over humps and pot holes there is a slight noise coming from the front but somtimes get a very loud knock from the back i have changed the rear top mounts the arbs look ok has any1 else had this problem
    #1
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  3. colicabcadam
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    colicabcadam Guest

    [Aug 21, 2010]
    bit silly, but are your tyre pressures correct?
    #2
  4. anilkumar
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    anilkumar Member

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    [Aug 25, 2010]
    yes there correct could this knocking be caused by worn rear axle bushes
    #3
  5. Welly
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    Welly VX220 SC Driver :)

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    [Aug 25, 2010]
    What sort of A3, T Sport or Quattro?
    #4
  6. ChrisSThree
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    ChrisSThree New Member

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    [Aug 25, 2010]
    Check that the front ARB plastic collars (assuming it's an original ARB) haven't fallen apart. All your exhaust mounts are ok as well?
    #5
  7. anilkumar
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    anilkumar Member

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    [Aug 25, 2010]
    its a 2002 standard a3 tdi 130 SE arbs have been checked and seem ok
    #6
  8. mattyboy199
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    mattyboy199 Active Member

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    [Aug 26, 2010]
    wish bone bushes
    #7
  9. Sandip
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    Sandip Well-Known Member

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    [Aug 26, 2010]
    Shocks
    #8
  10. anilkumar
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    anilkumar Member

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    [Aug 27, 2010]
    ok thanks il have to have a look i have asked a VAG speailist and he thinks rear axle bushes but will ask him to check the other stuff
    #9
  11. Lloyd149
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    Lloyd149 Member

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    [Aug 28, 2010]
    Knocking sounds are usually bushes, previous car was a Ford and that is their most common problem.
    #10
  12. anilkumar
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    anilkumar Member

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    [Jan 3, 2011]
    the problem was rear axle bushes
    #11

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