The drive system: Four new engines giving the ultimate in driving pleasure

Efficiency at the highest level: this is the common characteristic shared by all four engines used in the Mercedes-Benz CLS-Class. All of the engines feature increased performance and torque compared with previous models, while at the same time boasting significantly reduced consumption and CO2 emission levels. The two V6 engines are typical examples: the diesel engine in the CLS 350 CDI BlueEFFICIENCY now offers an increase in output of 30 kW, yet at an average of 6.0 litres/100 km consumes 21 percent less fuel than its predecessor.

Thanks to third-generation BlueDIRECT injection technology, the V6 petrol engine in the CLS 350 BlueEFFICIENCY is 25 percent more economical than before, despite an increase in maximum output of 10 kW: it now consumes just 6.8 litres per 100 km and matches its diesel counterparts in terms of CO2 emissions at 159 g/100 km, making them the global role models in their performance class. Advances in efficiency which are every bit as impressive are also to be expected of the V8 engines. The CLS 500 BlueEFFICIENCY will become available during the course of the coming year. The CLS will also become available then with 4MATIC all-wheel drive for the first time.

Setting entirely new standards for efficiency in the luxury segment is the CLS 250 CDI BlueEFFICIENCY. Available for the first time in the four-door Coupé, the four-cylinder direct injection diesel engine has already enthralled customers of the E-Class. With an output of 150 kW (204 hp), a top speed of 242 km/h and a full 500 Nm of torque, it provides complete driving pleasure yet will astound you when filling up with its consumption figures comparable to those of a compact car: on average the CLS 250 CDI BlueEFFICIENCY uses 5.1 litres per 100 km, which is equal to CO2 emissions of 134 g/km.

In addition to optimisations in the powertrain - all CLS models are fitted with the enhanced 7G-TRONIC PLUS automatic transmission as standard - the sophisticated ECO start/stop system helps to ensure extreme efficiency even when driving in urban traffic. Like the petrol models in the CLS range, the CLS 250 CDI BlueEFFICIENCY is fitted with this system as standard.

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