I sold my vehicle, a 2011 model year TDI, back to VW in September 2018. It had 238,500 miles / 385,000 km on it. Averaged approximately 30k miles per year, for 8 years. Vehicle was acquired in October 2010.
Fuel economy remained north of 30mpg (US gallons) until the end. The factory shock absorbers were still on the vehicle.
DEF and DPF problems were the main issues over the years. Factory brakes lasted a very long time, 150k miles if I recall. I use the brake pedal sparingly and infrequently.
Diesel fuel gelled one time. Battery replaced by me once, at 220k miles approximately. I hit a deer in 2014 head-on at 55mph, so the driver's airbag, radiator and associated front end parts were placed. Steering components were fine and factory original until the end.
In the final months, some expensive repairs were in the making, which I did not take on. Transmission shifting poorly, air conditioning modes (flap servos) not functioning reliably, and check engine light coming and going. Great vehicle and I look back fondly on the miles.