general problems of the 2002 Audi A6

When I first got the vehicle it would start with no issues and now it wont start an I cant figure out why and not sure if this is the reason I cant think of what else it could be it acts like its not getting any fuel or something to get started.

I recently bought my Audi and throughout the summer it drove just fine, but once winter came around and the temperatures dropped, I noticed the smell of gas in my car as soon as it was started. I opened the hood and there was gas spraying from what looked like all six fuel injectors. So I took the car to a mechanic, where they replaced numerous things (fuel pressure regulator, o rings, valve system, and all 6 fuel injectors) all to no avail. Nobody can tell me what is wrong, nobody knows. I called Audi and they told me I could take it to a dealership but that they couldn't promise they can fix the car. I can't drive the car, it is a safety hazard. I have looked on many forums and there have been a few other people with the same problem but nobody can figure out what is wrong. Is there a recall, or any information you can give as to how to fix this problem??.

Typical Audi fuel leak problem. They say it is a roll over valve. They fixed it. It still leaks and now it is my problem at $2800.