Diesel version shares around 60 per cent of its architecture with the petrol version
The new engine is destined for the new Mini, 1-series and 3-series applications
This is the all-new, BMW 1.5-litre, three-cylinder turbocharged engine. It will find its way under the bonnet of next year’s new Mini, the new front-drive BMW family and, it’s rumoured, today’s rear-drive 1-series and 3-series models.
Codenamed B38 (petrol) and B37 (diesel), it will come in petrol and diesel forms and is expected to be between five and 15 per cent more economical than BMW’s current N20 four-cylinder engines.
Built on an alloy block, the engine gets Valvetronic variable valve timing, a single turbo, 11.0:1 compression ratio and a longer stroke than the N20. It has been engineered as part of BMW future modular engine strategy, which sees all engines based on the same individual 500cc cylinder.
BMW says the petrol engine will develop between 40bhp and 66bhp per cylinder, giving the various versions power outputs of between 120bhp and 200bhp. The torque outputs are expected to be between 44lbft and 66lb ft giving a range of 132lb ft and 198lb ft.