What's the n205 sensor ?
From another forum...
"That position sensor tells the spark plugs when to fire for each cylinder by sensing where the cam is positioned in the cycle. You will get those misfiring problems when the sensor goes bad as it has no idea when it should send the spark signal or not since it is missing parts of the cam's cycle by malfunctioning. I'm sorry, but in almost full confidence you were chasing down the wrong path. Replace that cam sensor and I think all of your problems will be solved (can't say if other sensors didn't get wet and go bad as well, though). If not, you are at least going down the more correct path of diagnosis."
Mines currently has oil oozing out of the sensor and also from my experience it can also lead to rough idle for my TFSI Sport.