Currently reading: BMW working on new 400bhp quad-turbocharged diesel engine
New quad-turbo diesel engine will get its first outing in a performance version of the new 7 Series next year
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1 min read
31 July 2015

BMW is putting the finishing touches to a new quad-turbocharged, in-line six-cylinder diesel engine for use in a number of high-end models, sources close to the German car maker have revealed

The new performance-orientated oil-burner is planned to get its first airing in a newly created 7 Series M750d model planned for launch in 2016. 

Set to replace BMW’s existing tri-turbocharged diesel, the new quad-turbocharged engine is claimed to boast a capacity of 3.0 litres and develop well over 400bhp and 590lb ft. 

Details remain scarce, although sources suggest the new engine could build on the tri-turbo unit used in the M550d and X5 xDrive50d M-Performance by adding a small electrically driven turbocharger to increase low-end boost pressure and provide added punch. 

Alternatively, BMW could improve induction qualities by using a fourth conventional gas-driven turbocharger.

The existing tri-turbocharged unit develops 376bhp at 4000rpm and 545lb ft at a relatively high (by diesel standards) 2000rpm. 

As well as being earmarked for the new M750d, the quad-turbocharged diesel is also set to appear in four-wheel-drive M Performance derivatives of the X5 xDrive50d, X6 xDrive50d, and X7 xDrive50d.

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405line 8 March 2016

Lifetime Warranty please

I have been saying this for a while now...its all very well selling the public "Group B racers lite" however they ain't gonna have 6 mechanics servicing their car for free..are they.
Ski Kid 28 September 2015

Prefer a v8 4 litre with two turbos

I am sure a 4 litre v8 would be far more enjoyable .
jer 27 September 2015

I suppose

If one turbo goes end of life you need to replace all. So given a 150k life of a turbo its possible you'll have 5 year old cars written off because repairing the engine will be too expensive? Potentially a cottage industry will emerege converting them to twin turbos.