I needed a thin flat screwdriver and needle pliers. A carpenter pliers were also useful to tight the clamps: (pic 3)
The work was fairly easy. As you may know one must remove the sound absorber panel (I asked for someone else's help since it was too hard to remove mine by myself) TIP: Heat up the engine to ease its removal.
After disconnecting the valve harness and the plastic hose right above the valve, I used the flat screwdriver and needle pliers to disengage the clamps, being careful not to damage the fuel steel tube and valve's left short hose: (pic 4)
I finally connected the new hose and valve as per initial position and maked sure to tight the clamps well. So I got something like this: (pic 5)
I noticed a little increase in power and have not had the DTC since then; hope it continues like that.
The new hose has a different routing, it's just that. A technical bulletin from the bentley repair manual states to replace OEM hose to the new one, but it is just a suggestion to improve performance; it does not state exactly why.
On the other hand, I got the evil code back again. My theory is that this is a sensing problem. Since, if it were a leak in the system, we would get a leak-related code such as small leak, medium leak, etc. but this is not the case, so there is no leak in the system. Second, the new N80 cannot be failing. Then, if my theory is not true, we would have an issue with the double-check valve that is after the N80 and before the sensor that measures the amount of gas fumes into the intake manifold and the turbo. That would be the cause, the double-check valve. Perhaps it is not letting the correct amount of gas vapors to pass into the intake and turbo, but then again where would they be going???!!! I've been clueless since then, all I can do is to check the double-check valve, but it is unlikely that such pure mechanical component is failing.
TIP: Do not purchase/replace the hose til you correct the code definitely. Changing the hose won't do it.
Well I replace the hose today with the updated one. So far the code hasn't come back and it usually did right away after I cleared it and drove on it a few miles. I'm hoping this does it but from your post IDK
I do not know how difficult it can be to reach it but repair manual suggests to check it through a vaccum pump to check for vaccum building up on the n80 side or "behind" the double-check valve (i.e. the opposite side of the intake). Of course if no vaccum is built up you got a bad double-check v, since it would be letting the vapors to come back to the n80, and that's a malfunction.
Im new on this forum and I have the same error. Cleared it a few times with Vag Com and still comes back - I have replaced a New N80 Valve along with N80 Valve pipe with new one but still the error keeps coming up.
I want to get rid of this error. Please let me know if you guys come right. I am going to look for the N115 Valve today (Think it is under the spare tyre).