BMW will launch its first multi-stage turbocharged diesel engine later this year with a new variant of the 5-series.

Using the latest version of the 3.0-litre six-cylinder common rail diesel engine, an additional turbocharger increases maximum power from 218bhp to 272bhp, while maximum torque of 413lb-ft is available from 2,000rpm. The maximum torque available with the current 3.0-litre engine – 369lb-ft – is available from 1,500rpm. Early performance figures show the 535d will accelerate from 0-62mph in 6.6 seconds.

The second turbocharger is activated once the engine has reached higher speeds to provide an ongoing surge of power up to the maximum 4,800rpm. BMW promises 'modest' fuel consumption and Euro IV compliance. The high-performance diesel will only be available with a six-speed automatic transmission.

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