Do you recommend buying a high mileage diesel?

I'm looking to buy a diesel car, most likely from 2014. What is considered high mileage for these? It will most likely be a BMW or Audi, which are usually ex-fleet cars. Do you recommend buying a high mileage diesel?
Not any longer with all the problems people are having with the emissions kit. Generally you can expect an EGR to last 50,000 - 100,000 miles; an AdBlue heater to last 50,000 miles, a DPF to last 80,000 - 100,000 before filling up with ash, turbo to last 100,000 - 150,000 miles depending on how much you idle it before switching it off and, of course, timing chain failures on BMW M47 and Mercedes-Benz 2.1 diesels.
Answered by Honest John on

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