Audi A6 The mid-sized Audi A6 model offers more room to the driver and passengers over the A4 line.

Rough idle

  #1  
Old 05-21-2016, 12:15 AM
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Location: Minneapolis, MN
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Default Rough idle

Hi all. I recently tried to run my A6 4.2l after storing it through the winter and it idles really bad. The check engine light flashes and there's water dripping from the exhaust. I installed new ignition coils and spark plugs last summer before i stored it so i doubt that those would be an issue. Any leads as to what i should look for?
 
  #2  
Old 05-29-2016, 06:07 PM
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Probably there is water in the tank from condensation and the fuel started breaking down. Did you store it with a full tank and a gas stabilizer or Seafoam?
 
  #3  
Old 05-31-2016, 11:59 AM
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I have about 3/4 gas in it but no stabilizer or seafoam. Should i drain the gas out?
 
  #4  
Old 06-03-2016, 10:58 PM
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I would at least add some dry gas and top it off as much as possible with fresh fuel, or drain the tank and add new gas after.
 
  #5  
Old 06-04-2016, 05:55 PM
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Ok. I'll try that and see what happens
 
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