I have a 71 Volkswagen T-Roc convertible with the 1.5 engine. There is so much confusion on this with timing belt change intervals of life/140,000 miles and different answers from different VW dealers ...

Why has the Volkswagen 1.5 TSI timing belt interval changed? I own a VW Passat GT 2018 plate with the 1.5 TSI engine, it has 28,500 miles on the clock and is in lovely condition. All services are done ...