I need some help fellas, My wife has been driving her 2001 A6 2.7T with 106,000 miles on it. She was having trouble starting it while cold so I checked the battery and replaced it. This morning it would not start, it would turn-over and catch for about 2 seconds then quit. after about 5 minutes of this it finally idled and until it warmed up a little when ever I would hit the gas it would sputter. I turned it off after it warmed up a little and re-started like a champ no problems. I have no ideas as to what it could be at this point does anyone have any suggestions.

-all help is appreciated in advanced

 

How cold are we talking?

 

this was a double post....im a newb...it was the Coolant temp sensor