Showing posts with label BlueEFFICIENCY. Show all posts

The Mercedes-Benz S 250 CDI BlueEFFICIENCY declared 2012 World Green Car

By | Published Thursday, 5 April 2012

At a press conference hosted by Bridgestone Corporation and the New York International Auto Show, the Mercedes-Benz S 250 CDI BlueEFFICIENCY was declared the 2012 World Green Car.

The Mercedes-Benz S 250 CDI BlueEFFICIENCY was chosen from an initial entry list of 23 new vehicles from all over the world, then three finalists: the Mercedes-Benz S 250 CDI BlueEFFICIENCY, the Ford Focus Electric, and the Peugeot 3008 Hybrid.

This is the second time in World Green Car history that a Mercedes-Benz technology has won this prestigious honour. The Mercedes-Benz E 320 BlueTEC technology was the 2007 World Green Car winner.
Credits: Daimler AG

Copyright © 2012, Mercedes-Benz-Blog. All rights reserved.

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The all new Mercedes-Benz SL 350 BlueEFFICIENCY: Light, athletic, luxurious

By | Published Tuesday, 3 April 2012

With the all-new SL, Mercedes-Benz is continuing a tradition that began 60 years ago, since when "SL" has always stood for a symbiosis of sportiness, style and comfort – and for trailblazing innovations. The SL's bodyshell consists almost entirely of aluminium for the first time, and weighs in at up to 140 kilograms less than its predecessor. The highly rigid all-aluminium bodyshell provides the basis for emphatically sportier, agile handling accompanied by exemplary ride and driving comfort. Enhanced driving dynamics are ensured by new BlueDIRECT engines.

The new V6 power unit of the new SL 350 BlueEFFICIENCY generates 225 kW (306 hp) from an unchanged displacement of 3499 cubic centimetres, and delivers 370 newton metres of torque. It consumes a modest 6.8 litres of fuel per 100 kilometres, and is therefore almost 30 percent more economical than its predecessor. The SL 350 BlueEFFICIENCY is equipped with an ECO start/stop function as standard.

The 7G-TRONIC PLUS automatic transmission, which has been optimised for fuel consumption and comfort, also contributes to fuel efficiency. The modesty of the BlueDIRECT engines in no way compromises the dynamism of the Roadster. On the contrary, the SL 350 sprints from zero to 100 km/h in 5.9 seconds and is therefore three tenths of a second faster than its predecessor.

Aerodynamics: new standards

The design of the new SL not only meets high aesthetic demands – it also boasts exemplary aerodynamic qualities. As such, the roadster merits best marks in its segment in four important disciplines:
- it has the lowest drag coefficient (Cd = 0.27 for the SL 350);

- it has the lowest wind noise, virtually on a par with a closed saloon;

- it provides the best comfort for open-top motoring, and can be driven with the roof down even at high speeds;

- there is virtually no soiling of the side windows.




Credits: Daimler AG

Copyright © 2012, Mercedes-Benz-Blog. All rights reserved.

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New engine for the C 180, optimised E 220 CDI BlueEFFICIENCY Edition: Beacons of efficiency

By | Published Tuesday, 6 March 2012

Presenting the most economical E-Class diesel and C‑Class petrol models to date: with a consumption of 4.5 litres/100 km and 119 g CO2/km for the E 220 CDI BlueEFFICIENCY Edition and 5.8 litres/100 km and 136 g CO2/km for the new C 180 BlueEFFICIENCY, Mercedes-Benz is giving an impressive demonstration of just how much potential is still left in the internal-combustion engine. Take the C-Class, for instance: since its predecessor was launched in 2000, the output of the C 180 has increased by 21 percent, whilst consumption has been reduced by 37 percent. The present version of the C-Class is nearly twice as efficient as its predecessor.


The E 220 CDI BlueEFFICIENCY Edition that is available from March 2012 is simply one of the most economical cars in its segment. Thanks to a bundle of efficiency-boosting measures, including an Aerodynamics package, electric power steering (EPS), a longer final-drive ratio and size 205/55 R 16 tyres with low rolling resistance, the model emits just 119 g CO2/km – that is ten grams or nearly eight percent less than before and equates to 4.5 litres of diesel per 100 km. The E 220 CDI BlueEFFICIENCY Edition has an output of 125 kW (170 hp) and is available with a 6-speed manual transmission only.

The turbocharged 1.6-litre four-cylinder petrol unit is the brand new entry-level engine for the C-Class. With fuel consumption of 5.8 l/100 km and a CO2 figure of 136 g/km, the improvement compared to the previous C 180 when similarly equipped is as much as 21 g/km, or just under 1 l/100 km. This makes the C 180 BlueEFFICIENCY one of the very first petrol models to be ranked in energy efficiency class B. The 115 kW (156 hp) engine is very light when compared to its competitors and delivers impressive agility from standstill – peak torque of 250 Nm is on tap from just 1250 rpm all the way up to 4000 rpm.

Consumption per hp halved: efficiency has doubled in twelve years

The tremendous efficiency potential held by petrol engines is illustrated by a look back over the entry-level petrol models for the C-Class and its immediate predecessor, the 190 (W201 model series). This was launched in 1982 with an output of 66 kW (90 hp) and consumption of 8.5 litres/100 km based on the Euromix formula used at that time. When the W203 model series debuted in 2000, the output of the entry-level C 180 climbed to 95 kW (129 hp), while fuel consumption measured according to the new NEDC standard was 9.4 litres/100 km. Twelve years later, the entry-level C-Class from the W204 model series generates a powerful 115 kW (156 hp), but burns just 5.8 litres of fuel per 100 km. This means that output has increased by 21 percent while fuel consumption has been lowered by 37 percent since 2000. Or to put it another way – instead of 0.0729 litres of fuel per hp, today’s C-Class consumes just 0.0372 litres per hp, making it almost twice as efficient as its predecessor from 2000.

BlueDIRECT technology from the luxury segment becomes widely available

The technology of the Mercedes-Benz combustion system, which was first introduced in 2010 on the new V6 and V8 engines, has now made its four-cylinder debut with the launch of the new engine. At its core is third-generation spray-guided, homogenous direct injection with centrally positioned, fast-switching injectors, where fuel is injected at a pressure of up to 200 bar. A single-plunger pump with a flow control valve integrated into the pump module serves as the high-pressure pump. This is supplemented by multi-spark ignition, turbocharging and the ECO start/stop function.
Compared to the engine it replaces, internal engine friction has been reduced by 16 percent, while engine weight has been lowered by 18 percent, thereby setting a benchmark amongst comparable four-cylinder units.

Low friction losses and on-demand control of ancillary units both help to further enhance the engine's energy efficiency. Oil is supplied via a two-stage, variable-speed vane pump. An electronically controlled thermostat in the coolant circuit provides for map-controlled regulation of the warm-up phase, with no coolant flowing through the cylinder head when the engine is cold. The water pump is controlled in such a way that the passenger compartment can be heated up as soon as possible.

The key data at a glance:



Credits: Daimler AG

Copyright © 2012, Mercedes-Benz-Blog. All rights reserved.

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