Moaning about adblue and ways to get around it is a first world problem. Adblue is cheap, helps save the planet and apart from being a pain in the arse to refill (in a D5) is a non-problem.
As an aside, while the D5 was a pain to refill at least the D5 tells the driver the tank level. The Touareg does not...at all. Apparently one gets a warning or two when its low but that's it.

