Isn't this problem under some sort of warranty from the dealer? Seems like the car isn't getting the boost it needs maybe the bypass valve or wastegate is not functioning properly, is the turbo spooling up at all? I mean there's a lot of things to check...codes are misleading and don't point nessecarily to a sensor at fault.

well gee if the dealer has the car, and they can't solve it the lot of them put together. I doubt anyone on here is gonna be able to solve it without even seeing the car. Plus since it's a new model, I doubt anyone has any info on it, unless someone else is having this problem. At which point I think VWOA would become aware of it and issue a bulletin that would make the repair documented.

New cars always have some bugs, especially first year of a new platform. When the beat meets the street it's a whole new ballgame.

I agree with ukvwmech - the variable vane turbos carbon up internally and cease to adjust (turbo pressure is controlled by vacuum line and turbo vane adjustment). If they partially seize then the turbo will likely overboost causing the ECU to immediatly cut power and put you into limp home mode. Turning the ignition off and then restarting resets the system until the next boost overload. The turbo can be stripped and cleaned - we have done several of these, all succesfully repaired.
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Vdubbya
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Can you tell me if it's okay to use E85 fuel in my 2006 Passat?