A6 / S6 (C6 Platform) Discussion Discussion forum for the C6 Audi A6 produced from 2004-present and Audi S6 produced from 2007 - 2011

V10 knocking sound

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Old 08-16-2010, 08:48 AM
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Default V10 knocking sound

I did some searching, but didn't see anyone else with this problem...

I have a 2008 S6, and recently noticed a knocking sound coming from the engine at idle. Took it to the dealership and they couldn't locate the sound (Shocking, I know), but they contacted Audi of America, and the AoA rep wants me to leave the car with them for a week while they investigate. In the tech's words, "Since it is the V10, we don't want to take any chances..."

Anyone else with an S6 run into this?
Old 08-16-2010, 11:01 AM
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Yeah... my intake manifold had a flap inside of it go bad and it was causing a noise in the engine bay. Have them look at it. My dealer admitted to that part having issue. My entire intake manifold had to be replaced.
Old 08-17-2010, 08:55 AM
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Thanks for the tip!
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