Alright, so a while back, i replaced the fuel line that goes from the metal fuel line to the fuel rail because it was leaking. I couldn't get one brand new because Audi sold literally the entire fuel line (tank to rail) only, so I got one used. There is no gasket or anything, its just the fuel line which is annoying.

Anyway, its been working well until now. I live in MN and the night time temperatures have been below -10 degrees F and sometimes around -20. Gas is leaking from the same spot now... I don't really think another used line will help, since it was in much better shape than the original one when I replaced it and I don't think it has worn out yet. I also can't find a new one like I said before.

Does anyone have some ideas to get it to stop leaking?

 

I also had the same problem this morning when I opened the hood to unplug the battery jacket I noticed a drip between the hard line and the rubber fuel line on top of the fuel rail. I suspect the rubber hose shrunk enough to cause the leak. If you replaced yours and still have the same problem I might just hold off on fixing it until a better solution surfaces.

 

You haven't described precisely where the leak is coming from. Or can you not tell exactly?

 

Of the two fuel lines, right above the engine, it is the left upper of the two. It leaks right at the connection to the fuel rail.

Anton_26: I will say that replacing the line did improve the leak and slowed it. It must get colder now than it did before for the leak to occur now. Its up to you but if you can get your hands on one easily, it shouldn't be difficult to replace, its probably worth a shot.

 

i'd take it off and wrap some teflon tape on it

 

I hope everyone having the same issue is having some luck. I usually start with the easiest option and cheapest to solve problems. I simply tightened the fitting where the leak was and succeeded. Also watch your oil filter and oil line fittings. i noticed they were seeping also, the same method worked on those as well. good luck to all.

 

Glad you got it Anton. I was going to try wrapping something around the threads, but its leaking more on the backside of the fitting, not really from the threads. Ill still give it a shot though.