More specific; I need the plug that attaches to the valve that control vacuum to the two exhaust valves.
The plug itself has some very very faint and not readable numbers on it. My local Mr P tells me that you are not able to buy individual plugs from Porsche but would be able to through VW, depending on it being a shared part.
First problem is to find the part number, and the not readable numbers on the plug seems to be in another format than VW normally uses.

Any ideas?