Mazda BT-50 2012: Common-rail diesel rattle

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On start-up in the morning my Mazda BT-50 GT has a pinging noise from the engine until it comes up to temperature. Is this normal for a diesel? Is there potential to cause any engine damage driving while cold? Would I be better off to let the car warm up before driving?

Answered by CarsGuide

24 August 2012

Graham Smith

A lot of the new generation of common-rail diesels rattle cold, no matter the brand. They all use the same fuel-injectors, which appear to be the cause of the problem, and there doesn't appear there's much that can be done about it.

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