It has no PCV valve, it is a scavenger system that draws from the dipstick tube. I have been in this rodeo before, this one was not as bad as most that got put together half arsed..
Edit: A dead give away is minor leaks at the main seals, they do dry up when pressure is relieved.
I caught this one in time. This is a common type system and was used on many Euro cars. Hoses 16 were reversed and the check valve near 17 was backward preventing flow to the turbo manifold tube.