All these uncertainties add weight to the suggestion that you should keep a car that you trust instead of changing - especially as a new generation usually means more complex electronics with more expensive correction costs.......
IN many ways better to stick with older proven technology, which although not as "sexy" still does the job - look at electronic handbrakes and hill assist for example. Still giving trouble, even on some Toyotas.
Eventually you have to buy a car with newer technology, but I can't see diesels getting any more reliable because some of those parts you have mentioned like turbos are always going to get blocked by soot being recycled via the EGR valve. Manufacturers are throwing increasingly complex components at an engine that was designed years ago to burn a dirty fuel, but what is the alternative for high mileage users - diesel contains an enormous amount of energy per litre.
Apparently there are many problems with stuck injectors that can write an engine off because they cannot be removed. And they are having to be taken out because they fail so frequently. There are people who have set themselves up to remove injectors professionally for work shops using specialist hydraulic pullers because they can't do it themselves without damaging something else like the cylinder head.
The electronic handbrake is pointless though. I have hill assist on my Subaru, and it's very useful. But it's mechanical.
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