New Mercedes 4-Cylinder Diesel Engine

The new four-cylinder diesel generation from Mercedes-Benz can be briefly summed up as follows: greater power, greater economy, greater cleanliness.

New Mercedes 250 CDI engine

Motor1.com Team

By: Motor1.com Team

Apr 10, 2008 at 11:54am ET

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Mercedes is on a quest to deliver greater power, economy and cleanliness with fewer cylinders. Today the German marque has taken another step forward with their new 2.1 liter CDI diesel engine, producing 204 hp with 500 Nm of torque while consuming just 5.4 liters per 100 km.

Mercedes celebrates the 150th anniversary of Rudolf Diesel's birthday, and what better way to honor the man who invented the diesel engine in 1893, six years after Daimler and Benz invented the automobile, then with a new engine. Rudolph Diesel died in 1913 and the first diesel engine made its world debut in 1936 as the legendary 260 D.

The new diesel, which will be known as the 200 CDI, 220 CDI and 250 CDI has 2143 cubic centimeters of displacement and is capable of producing 150 kW / 204 hp of power with 500 Nm of torque in its most potent level. Thats 20% more power and 25% more torque than the outgoing engine. CO2 emissions are also cut by up to 13% which ensures that the engine is Euro5 emissions standard approved already.

The new engine will debut in 2008 in the C-Class, can be installed transversely and longitudinally, is expected to power all-wheel-drive cars and of course BlueTec technology can be supplemented too. This engine will scream from 0 to 100km/h in 7.7 seconds if placed in a C-Class saloon by fully deploying its two turbochargers. The two-stage turbocharging should take care of the notorious 'turbo-lag' on a single turbocharged engines.

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Here is a short overview of the new engine:

  250 CDI 220 CDI 200 CDI Number of cylinders 4 4 4 Valves per cylinder 4 4 4 Displacement, cc 2143 2143 2143 Bore/stroke, mm 83.0/99.0 83.0/99.0 83.0/99.0 Compression ratio 16.2:1 16.2:1 16.2:1 Output, kW/hp 150/204 at 4200 rpm 125/170 at 3200 -4800 rpm 100/136 at 3000 -4600 rpm Torque, Nm 500 at 1600 - 1800 rpm 400 at 1400 - 2800 rpm 330 at 1600 - 2800 rpm \*)

Full details can be found in the attached press release and subsequent pages.

Gallery: New Mercedes 4-Cylinder Diesel Engine

New Mercedes 250 CDI engine

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