Join Date: Jun 2009
Location: Canada, Alberta
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I might have a solution to the morning cold start/ rough idle problem.
I think I may have found a solution (In Canada) to the rough morning starts that occurs sometimes. I have the 2.0 FSI and had occasional issues where the car would shake violently for 10-15 seconds during morning cold starts. The solution I found accidentally was to change gas stations! From the day I purchased my car, I would fill up with only Shell V-Power. From what I have read, Shell is supposed to be the Top Tier gas station that Audi recommends.
About a month ago, I was low in fuel and all the Shell by my area was closed. The only gas station open was Petro-Canada, and I hesitantly filled up a full tank of gas. During the time my car had the Petro-Canada gasoline, I noticed the rough starts in the morning disappeared. I didnít think too much of it as it only occurs occasionally. The next time I required a full fill up, I went back to Shell V-power. The very next day, the morning shakes came back and continued every day until I switched to Petro-Canada again.
So far I havenít had any rough starts with Petro-Canada gasoline. I did some research and they are also considered one of the Top Tier gas brand and contain an additive called Tactrol that supposed to clean the engine.
So far, I have experimented with only 2 tanks of fuel from Petro-Canada, but my rough morning shakes have disappeared completely. Could this be the solution?
If anyone out there has this problem, let me know if changing gas stations (Petro-Canada) works for you.