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S4 Noise

Discussion in 'A4/S4 forum(B5 Chassis)' started by nemo2182, Feb 23, 2010.

  1. nemo2182
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    nemo2182 Lord wont u buy me a V10 R8!

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    [Feb 23, 2010]
    After an aggressive start off lights earlier this evening, I started to get a weird knocking noise under load???It almost sounds like a stone being shaken in a tin can? Now it only happends under hard throttle and when when turning right???I thought CV, but theres no noise when I roll without touching the throttle??Ive never heard this sort of noise before, and I jacked it up and saw nothing?

    Any suggestions?

    Nathan
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  3. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Feb 23, 2010]
    Sounds like the start of cv wear, usually most prevelent under acceleration
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  4. calvin
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    calvin parked up

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    [Feb 23, 2010]
    I hate to scare you, but when I got that noise, one of the turbo impellers had sheared and was rattling in the housing....

    Does the car still go as well as it did, or is it now underpowered? It could be that a part of the turbo vanes has broken off, rather than the whole thing, but....

    Check for white / blueish smoke on startup tomorrow too - if so, you may have cooked the turbo on one side....

    Hopefully it isnt that and its just a cv joint!
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  5. calvin
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    [Feb 24, 2010]
    bump

    is it serious? have you found the fault?
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  6. nemo2182
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    nemo2182 Lord wont u buy me a V10 R8!

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    [Feb 25, 2010]
    Noise has gone again!!! F@#king car!! Sure she is my baby, but sometimes I really get mad with her!!!

    MOT this wend, so mayb it will come up then. Dont think it will be turbo, no smoke and lack of go? Mate said it might b CAT breaking up. WHO KNOWS.................
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