S4 (B8 Platform) Discussion Discussion forum for the B8 Audi S4 produced from 2009-2016

Rough Idle

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Old 07-26-2018, 03:46 PM
  #31  
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We purchased a 2015 S4 with 41k miles about three weeks ago. My wife noted a rough idle, which didn't seem out of line to me. I told her to
bring it in, as it's covered by warranty. The dealer found two items and repaired both free of charge. The first item was a valve that was not functioning
properly, (I don't have paperwork handy), and a collapsed motor mount. They fixed both and the car idles as smooth as any car I've had.

Steve
Old 07-26-2018, 11:13 PM
  #32  
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Originally Posted by BackNBlack
I've just purchased a 2010 S4 with 13K miles on it. The car runs extremely well, but the idle seems a bit rough. It's idling around 600-700, and you can feel the reverberation through the seats. Any thoughts? The car seems extremely well maintained and has never been in an accident.

Thank you,


Paul
Where do you live? I want to take my S4 your dealer. I also hear some strange noise when I turn off the engine. I’m more and more worried about the engine if all the internals are working correctly. I have built few engines and never heard such sounds.
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