Mercedes-Benz announced a new range of four-cylinder diesel engines today, reiterating their focus on reducing engine size while maintaining performance. The new lineup delivers better economy and power levels than Mercedes’ previous generation of four-cylinder diesel engines, with the most powerful variant delivering 20% more power and torque than the outgoing powerplant.

The range topper is a new 204hp 2.1L unit with a peak torque of 500Nm – as much twist-force as a petrol V8. Despite the increase in power and torque, the new four-cylinder diesel burns substantially less fuel than its predecessor and as a consequence CO2 emissions are reduced by as much as 13% and are now in line with future EU5 emissions standard.

The extra performance comes from several tweaks to the injection and common-rail system, now in its fourth generation, as well as an increase in fuel pressure, higher turbo boost from new twin-stage turbochargers, more efficient intercoolers and exhaust recirculation and improved fuel and water pumps.

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