What would have caused the fire in my MINI?

I was driving recently when my 2007 MINI Clubman caught fire. It had had a new diesel engine fitted over the summer after the previous engine suffered a persistent oil leak. It had also had a recent service. Any idea what the cause of the fire may have been? The insurance company will not investigate as the damage is too severe.

Asked on 2 November 2018 by David Baker

Answered by Honest John
Probably the oil feed pipe to the turbo bearing came off because the oil return pipe was blocked with carbon. Hot oil spraying onto a red hot turbo is the most likely reason for the fire.
Similar questions
I own a 2017 Vauxhall Astra 1.6 CDTI SRI NAV. The engine light is on and going in limp mode. It shows codes: P2453, P2452, P244A, P226D. Can you tell me what is wrong with my car?
I have a 2011 Citroen DS4, purchased two years ago. Since January, the engine light keeps coming on and the car will go into limp mode. I had the emissions filter 'fixed' in January by the dealer from...
I'm interested in spending up to £30,000 on a quality coupe. Is it unwise to be buying a diesel in the current climate?
Related models
More practical alternative to the standard MINI. Five useable seats and neat extra rear door to make getting into the back easier. Cooper D is the pick of the range.

 

Value my car