I’ve been looking around for a Campervan and found a 1989 T3 2.1 with 329,000km. The owner has had it for 10 years and it has not had a rebuild nor needed any major mechanical work during her ownership. It has full service history and is currently looked after by a retired VW mechanic. I want to do some travel if I buy this T3. How many kilometres is expected out of a well serviced 2.1lt? Is it a big risk buying a 2.1 Wasserboxer with over 300,000km on it?