Hi Ian, I got a new Touran 140 TDI DSG in June '05, and tow a 1500 Kg. 'van with it. Even though 1500 kg. is the car's limit, I've never had any problems with it, nor does the car ever feel that it's struggling at all - far from it in fact.I find it a great tow-car, and have had the outfit to Italy on two consequtive years. Solo mpg is around 42, and 28 when towing - but I don't "hang around".
Just check the service history. Variable service on long-life oil is anything from around 13000 - 18000 mls,depending on how much towing it's done, or two years, whichever comes first, and ordinary oil servicing is around 10000 mls. or 12 mths, whichever comes first.
Cam-belt replacement is expensive at around