I just rebuilt my Tranny. It is running nice, but I don't have a clue how the vaccum lines go. There is no diagram under the hood and the engine is running rough. I removed lines left and right to access the bolts in the rear of the engine, I have no clue how it goes back and the manual does not show one(bentley dvd). I have a 2000 A6 Quattro 4.2L naturally asperated engine. If someone here can do me the kindest favor to take a picture of your system and send it to me or post it here(link) I will gladly appreciate it. Please! I have the rear connected in a "Y" shape coming to the front and it's all wrong. I don't remember how they went.