Because the VW workshop manual says do it at 210,000km without time limit, and the belt manufacturer says it was designed to last 10 years. See post #2 on this thread by
@Loz. This is a UK only issue, all other markets follow the VW recommendation of inspection at every service and change at 210,000km without time limit. The issue in the UK only is that official dealers skip the belt inspection at every service.
Some early T6s had faulty belts. VW decided not to issue a recall, rather only advise owners who came into an official agency for service. A few of those who had service done elsewhere had their engines go bang.
I'm new to T6's but owned a T5 and T25's. What mileage do you change the cambelt and water pump on a VW 2.0 TDI 102PS Bluemotion T6? I'm considering purchasing one with 85K on the clock.
www.t6forum.com
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However, if it's a 180, that's a different kettle of fish