I have been having oil leaks ranging from:
The Breather valve
Valve cover gasket

I have changed them both. Now I am led to the a contraption that I do not know what it is. It is behind the intake manifold and it has a check valve linked in. It is wet with oil and its at the highest point. I have a 2000 a4 1.8t quattro. I was looking to find the pvc system so I could diagnose it. Can anyone help??