MercedesBenz SClass to sport its firstever 4cylinder turbodiesel; …

19 Апр 2014 | Author: | Комментарии к записи MercedesBenz SClass to sport its firstever 4cylinder turbodiesel; … отключены

Mercedes-Benz S-Class to sport its 4-cylinder turbodiesel; rated at mpg

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The S-Class is one of the flagship from German luxury car Mercedes-Benz. We’d expect to see a model packing a monstrous a stout V10 or perhaps even a turbo’d V8. but never in our wildest could we have imagined Mercedes would drop a banger in between the fenders of a beast. In fact, during the existence of the S-Class, no four-cylinder has ever found a home in its bay.

That is, until

Mercedes has developed the 2.2-liter CDI turbodiesel engine to deliver a 369 pound-feet of torque at a mere rpm. The high torque, with its 204 horsepower, enables the S 250 CDI BlueEfficiency to run from 0-60 in a 8.2 seconds. Not too shabby for a diesel, eh?

consumption comes in at 5.7 liters per 100 or about 41.2 miles per gallon on Europe’s generous cycle; CO2 emissions trickle out at a 149 g/km. Though Mercedes has no to offer the turbo’d four in S-Class models, the mere of this diesel mill, with the fact that it is in the company’s flagship model, us that the drive for better efficiency affects even of those top-shelf luxo-barges. Hit the for more on the new lineup of engines to the S-Class.

[Source: Daimler]


New engines for the S-Class: The new standard for

With a total of four new and petrol engines, the Mercedes-Benz defines the efficiency standard in its The accolade of the world’s most luxury saloon goes to the new S 250 CDI This high-tech turbodiesel is the four-cylinder engine in the almost success story of the S-Class.

an output of 150 kW (204 hp), the S 250 CDI achieves a fuel consumption of 5.7 litres per 100 kilometres (NEDC), to CO2 emissions of 149 grams per kilometre. The new V6 diesel in the S 350 BlueTEC delivers 190 kW hp) and has a combined consumption of 6.8 litres per 100 (177 g CO2/km). Thanks to control, it is one of the world’s cleanest engines.

With 225 kW (306 hp) in the S 350 and 320 kW (435 hp) in the S 500 BlueEFFICIENCY, the new BlueDIRECT generation is now entering the lists in the of V6 and V8 petrol variants.

The new highly petrol and diesel engines in the demonstrate that our customers are able to drive a luxury car with a clear conscience, Thomas Weber, the member of the AG Executive Board responsible for research and development at Mercedes-Benz More than ever the luxury saloon combines the claim of Mercedes-Benz with to efficient drive systems the classic brand strengths in the of design, safety, comfort and superior performance.

All the diesel and petrol engines direct injection

Mercedes-Benz the considerable reduction in fuel and improvement in efficiency with an combination of technical innovations take effect throughout the powertrain: in addition to direct in the diesel engines, as well as in the new V6 and V8 petrol engines, these the extensively revised, high-efficiency PLUS 7-speed automatic and the ECO start/stop function. This package is supplemented with specific BlueEFFICIENCY measures as the load-controlled oil pump and tyres lower rolling resistance.

The diesel in the S 250 CDI BlueEFFICIENCY is equipped latest-generation common-rail direct The high rail pressure of bar enables output and torque at the level of a six-cylinder diesel to be

In the S 350 BlueEFFICIENCY and S 500 BlueEFFICIENCY, the newly BlueDIRECT technology package a lower fuel consumption with increased power. The key is third-generation spray-guided direct injection with multiple and multi-spark ignition. With the V6 and V8 petrol units, Mercedes-Benz is a family of engines with a range of displacements and outputs.

This is based on a flexible, concept that allows the of turbochargers, and combination with all-wheel drive as well as modules.

Fuel economy: ECO function

The excellent consumption and figures are also due to the new ECO start/stop This is standard equipment in the S 250 CDI as well as the petrol-powered S 350 BlueEFFICIENCY and S 500 models. The ECO start/stop function the engine off as soon as the vehicle — for example at traffic and the driver keeps the brake depressed after coming to a

The engine restarts immediately the driver takes his foot the brake pedal.

The ECO start/stop will not switch the engine off if the desired interior temperature has yet to be if the driver has switched off the system or if modes S or M are active. An intelligent system ensures that all and comfort systems otherwise in operation during the stop

S 250 CDI BlueEFFICEINCY: first 5 litres/100 km car in the segment

With the new S 250 CDI BlueEFFICIENCY, Mercedes-Benz is now the world’s most fuel-efficient saloon. The first four-cylinder in the more than 60-year story of the S-Class attains a consumption of just 5.7 litres per 100 corresponding to CO2 emissions of 149 grammes per This makes the new S 250 CDI BlueEFFICIENCY the car in the luxury segment to run on under 6 of fuel per 100 km, and the first vehicle in its to attain CO2 emissions below the 150 mark. With a peak output of 150 kW (204 hp) and maximum of 500 Newton metres, the four-cylinder CDI the superior performance which is a of the S-Class.


It accelerates the large from 0 to 100 km/h in 8.2 seconds, and a top speed of 240 km/h.

The 2.2-litre CDI already delivers its maximum of 500 Nm at 1600 rpm. The high at low engine speeds is a result of turbocharging. This technology, is employed in a series-production passenger car engine for the first time in the C and is predominantly responsible for the high at the level of a six-cylinder power

The compact module for the two-stage consists of a small high-pressure turbocharger and a large low-pressure turbocharger. These are connected in and each has a turbine and a compressor by this turbine. The HP turbine is directly at the exhaust manifold and allows exhaust gas to flow it; it then rotates at up to 215,000 per minute. The HP turbine housing an integral bypass duct, can be opened or closed by means of a control flap triggered by a cell.

If the flap is closed, the whole stream flows through the HP so that the exhaust-gas energy is solely for the HP turbine drive. means that the optimum pressure can be built up at low engine

Improved cylinder charging at low rpm

The two compressors are likewise connected in and are in addition connected to a bypass The combustion air from the air filter flows through the low-pressure where it is compressed as a function of the LP output. This pre-compressed air passes into the high-pressure which is coupled to the HP turbine, it undergoes further compression. The is a genuine two-stage turbocharging The major advantage of this demand-related control of the combustion air using two turbochargers is improved charging, and therefore high even at low engine speeds.

consumption is also reduced. the car is driven, this concept itself felt by harmonious characteristics with no turbo-lag, a torque curve across the engine speed range, responsiveness and excellent performance.

Fourth-generation common rail

A further feature of the innovative and efficient diesel engine is common rail direct The rail pressure of 2000 bar is for the delivery of 150 kW (204 hp) of engine and maximum torque of 500 Nm, while low untreated emissions.

Dynamically engine mounts dampen

To ensure hallmark S-Class dynamically controlled engine feature as an innovation in the new S 250 CDI BlueEFFICIENCY. The and damping of these mounts according to engine speed, and vehicle speed, thus the transmission of unwanted vibrations and from the engine to the body.

Key for the four-cylinder diesel engine



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