Diesel is the most reliable enginen9fnthe bunch and I include the v8 in that.
I sat at just under 100mph crossing Germany none stop for 4 hours.
Would anyone risk driving the petrol cars at that length at that speed none stop?
The engine itself is fantastic, even better than the engine it was spruced from without the hassle BMW has from swirl flaps etc.
O rings, thermostat are not part of the engine, even a water pump is not part of the engine itself nor is a clutch etc.
They suffer the ancillary failures in a similar fashion to our cars yes, but unlike the v6 with its failing vis / inlet manifold / timing belts or the 1.8 or 1.8t with the risk of failure from head gasket or similar failure, or the v8 with its simple engine but crippling mpg there's no doubt the diesel is the most hassle free car to own and easily the cheapest to maintain and run especially if your doing 400 miles a week plus.
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