Mickey you bring up an interesting point. I again looked at my manual, just to make sure I didn't confuse things. Anyway, as you said, when mentioning the 100K powertrain warranty there is no mention of Turbocharger.
However, and this is what I read, under the 24K emissions control system warranty, it specifically mentions "Turbocharger and Wastegate" as covered. It also mentions "Exhaust Manifolds and Gaskets".
So my interpretation is still that the turbo, not being mentioned in the 100K warranty, means that it isn't covered. And since they specifically mention the turbo in the emission warranty and the manifold too, there can be no confusing of the two.
I'm not saying that you aren't correct, or that the argument can't be made, in fact if my turbo failed, I'd try the same argument; however, what I am saying is that for it to be covered VW would have to specifically mention it.
In California, the manual specifically mentions the Turbo as being covered under the 7 year, 70,000 mile warranty period. Why would they mention this if it was otherwise covered under the 100K warranty?
Why would VW lump the turbo into the emission related parts??