32,000 miles (51,500km) in the 2014 Plus 8.
One fault: a split vacuum pipe cap. The part cost nothing, the labour...well, that is what it costs to remove the bonnet, cowl and O/S front wing....!
One Issue: Engine Light kept on coming on to indicate one of the lambda sensors was slow to respond. Finally solved by fitting 2 new sensors. MMC and other manufacturers it seems, consider them to be "wear items".
Otherwise? A blown brake light bulb.
Has it ever let me down? No.