Well Tony without doing specific research on your 2.0 TDI 150 its going to be the ones going into Tiguans in 2017 but with perhaps some changes in tuning for real world consumption figures now brought in. At that stage the MPG you got out of a 190 v 150 Tiguan was the same / very close. The sales guy said if you are soft pedalled you get the same. The 190 is more raucous when revved hard, it's known for that.
What I'd do is study the Allspace and Kodiaq brochures to get an idea of how things will turn out on the
Tarraco. I had the 2.0 litres TDI in my old Altea I had that for 12 years with DSG. Never gave me a
problem apart from the ECU failing. Mechanically it was fine. Each VAG 2 litre is a progression of the same design...