There is no reason to shun high mileage camper vans, but a good servicing and maintenance history is key to getting a good one. The 2.5 TDI is gear-driven (which means it doesn't have a cam belt) but I would want to see a large history folder with documents that show the engine has had an oil and filter change every 12,000 miles or 12 months (whichever was sooner).

Don’t ignore any vibrations when it’s running either, the dual mass flywheel is prone to failure and will cost a small fortune to fix if it goes wrong. For all of our camper van buying advice, see: vans.honestjohn.co.uk/mpvs-and-camper-vans/how-to-.../