No valves are not self adjusting.
Rowefast, I cannot find any evidence of required valve adjustments on these cars. There was a required valve adjustment on old air cooled VW Beetles. See this below, maybe I'm wrong, can you please cite your sources. This is interesting, see this http://repairpal.com/valve-adjustment-577
I see your point there Mr. Markw. Its like a lot of Fords, just tighten the rocker arm down to the proper torque. Then its up to the lifter to do its job.
Looking for a Used Passat in your area?
CarGurus has 24,874 nationwide Passat listings starting at $999.
Search Volkswagen Passat Questions
Volkswagen Passat Experts
Related Models For Sale
Used Cars For Sale