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rattle noise

Discussion in 'A4/S4 forum(B5 Chassis)' started by 0w3n, Aug 16, 2008.

  1. 0w3n

    0w3n New Member

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    Hi All,

    I have a S Reg S4/B5, 127K. I have had the car for about 4 months and have started to notice a rattle noise coming from around by the CATS. I seem to remember reading about that it could be a lining inside the downpipes that could be shattered?

    I have checked the heat shields when i replaced the EGT sensors.

    any suggestions welcome.

    Rob
     
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  3. Blue_Thunder

    Blue_Thunder Well-Known Member

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    It's the lining in the exhaust manifolds which can come away. That can be catastrophic if bits of manifold get chewed up by a turbo.

    Before you start to panic though, check to make sure you don't have a loose EGT or Lambda. Saw this recently on an RS4 which had a mystery rattle coming from the downpipes.
     
  4. 0w3n

    0w3n New Member

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    ok, will do. thanks
     
  5. Blue_Thunder

    Blue_Thunder Well-Known Member

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