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Daimler 360 GRAD - FAKTEN zur Nachhaltigkeit 2008 Daimler Nachhaltigkeitsbericht 2008 / Environmental protection, innovation, and safety / Innovation, development and safety / Climate protection and CO 2 * Since 1995, we have reduced the CO 2 emissions of Mercedes vehicles sold in Europe by 21 percent; this reduction is nearly 50 percent higher than the average decrease for all European manufacturers. In Germany, the fuel consumption of our passenger cars has even declined by 32 percent since 1990. In addition, model updates have always involved an improvement of the vehicle's fuel consumption characteristics, thus further reducing CO 2 emissions. The CO 2 emissions of the new C-Class, for example, were reduced by 15 percent over the vehicle's entire lifecycle, by comparison to its predecessor. In the area of diesel engine development, the introduction of CDI technology has made it possible to significantly reduce fuel consumption. For gasoline engines, we achieved considerable fuel savings in comparison to previous engine types, thanks to the launch of a new generation of V6 engines, downsized supercharged drives, and direct gasoline injection (CGI). In addition, Daimler has developed the world's most successful three-liter car in the shape of the smart fortwo cdi, which has established itself on the market and is now being continued in the second generation. These examples vividly demonstrate the successful steps we have taken in terms of technology and product policy in order to reduce our fleet consumption. Despite such advances, the company has no plans to ease up in its efforts. Climate protection is one of Daimler’s areas of responsibility and is taken into account in its “road map for sustainable mobility.” Our initial focus here is the improvement of conventional drive systems. In addition, hybrid concepts offer greater fuel efficiency, primarily in city traffic. Zero-emission driving with battery-powered or fuel cell vehicles offers huge potential especially in large metropolitan areas. However, some obstacles still have to be overcome before these systems can be used in series-produced vehicles. We must continue to develop renewable processes for producing hydrogen and we must ensure that the vehicle technology is marketable at competitive prices. The first 100 smart ed models ever produced have been undergoing tests under everyday conditions in London since November 2007. In the summer of 2010, Mercedes-Benz will launch the B-Class F- Cell — the world’s first series-produced car with a fuel cell drive that produces zero emissions locally. * Content on this page is available exclusively on the Internet.
Daimler 360 GRAD - FAKTEN zur Nachhaltigkeit 2008 Daimler Nachhaltigkeitsbericht 2008 / Environmental protection, innovation, and safety / Innovation, development and safety / Sustainable mobility strategy for passenger cars Sustainable mobility strategy and implementation for passenger cars The Group’s long-term strategy for passenger cars involves the consistent further development of economical and environmentally friendly vehicles that make no sacrifices in terms of safety and comfort. Here, we’re pursuing a three-stage approach in order to conserve resources throughout the entire value creation process and minimize pollutant emissions (see chart: “Daimler’s road map to sustainable mobility”). 1. Concerted development and optimization of our internal combustion engines. 2. Further enhanced efficiency through hybridization. 3. Emission-free driving with fuell cell and batterypowered vehicles. The combustion engine and its hybridization will continue to play a key role on the path to zero-emission mobility. The innovations and technologies that contribute to further reductions in fuel consumption and CO 2 emissions are summarized below: � Optimized combustion engines. CGI (stratified charge gasoline injection). Second- generation gasoline direct injection systems ensure optimal fuel utilization, thereby generating fuel economy potential. Here, fuel is sprayed around the spark plugs in the shape of a hollow cone, which enables precise fuel dosages and thus optimized combustion. For example, as a result of the CGI system the Mercedes-Benz E 350 CGI now consumes 8.7 to 9.2 liters of fuel per 100 kilometers – around 10 percent less than a vehicle equipped with a conventional V6 gasoline engine that operates with duct injection. The CLS 350 CGI, which was introduced in April 2006, was the world’s first vehicle to feature spray-guided direct injection, a system that was then implemented in 2007 in the E 350 CGI as well. We will begin converting our four-cylinder gasoline engines to this direct injection system in 2009. DIESOTTO. DIESOTTO is a completely new engine concept from Mercedes-Benz that combines the best features of diesel and gasoline engines. In particular, it boasts outstanding fuel economy and thus reduced CO 2 emissions as well as lower nitrogen oxide emissions (NOx). The technology used is based on the principle of operating a gasoline engine in certain situations with auto ignition, like a diesel. The system also includes CGI gasoline direct injection combined with turbocharging, variable valve control, a lower number of cylinders, lower displacement, and an automatic start/stop feature. In 2007, the DIESOTTO engine was presented for the first time in the F 700 research vehicle. The F 700, which is similar in size and appearance to the current S-Class series, achieves fuel consumption of only 5.3 liters per 100 kilometers, which corresponds to CO 2 emissions of just 127 grams per kilometer. The core elements of the DIESOTTO concept are now gradually being incorporated into the individual model series from Mercedes-Benz. NGT (Natural Gas Technology). Today, natural gas is considered a sensible alternative to conventional drive system concepts from both an economic and an ecological perspective. Natural gas contains less carbon than normal gasoline or diesel fuel, for example, and its combustion also produces less pollutant emission. Our NGT vehicles are equipped with a bivalent drive system that enables them to operate on either natural gas or premium-grade gasoline. The technology has been available since mid-2004 in the Mercedes-Benz E 200 NGT. A new model – the B 170 NGT BlueEFFICIENCY – will be launched in the summer of 2008. � “BlueEFFICIENCY” package. Our “BlueEFFICIENCY” package of innovative measures is based on a holistic approach to vehicle optimization and the use of intelligent solutions for improving the fuel economy of our vehicles even further. All of the measures employed are optimally aligned with one another, thereby resulting in substantial fuel savings totaling approximately 10 percent. These measures include for example an extended gear ratio, a lower chassis, extremely low rolling resistance tires, and aerodynamic improvements. The first BlueEFFICIENCY models – the Mercedes-Benz C 180 Kompressor BlueEFFICIENCY and the C 200 CDI BlueEFFICIENCY – will be launched on the market in June 2008.
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