I have a 99 A6 Avant with a stock exhaust..has a very annoying humming noise..

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06-27-2002, 06:56 PM

DesmoTesta

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I have a 99 A6 Avant with a stock exhaust..has a very annoying humming noise..

is that normal..car has 39k, so it cant be the exhaust going bad...please advise

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06-27-2002, 08:13 PM

Phil type 951

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Re: more info... humming is not much to go on!

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