The outstanding safety and comfort of Mercedes Benz are also matched by its environmental compatibility and economy. The BlueEFFICIENCY system fulfills the environmental-friendly protection objectives: fuel saving and less emissions via its ECO Start/Stop, 7G-TRONIC PLUS seven-speed automatic transmission and the direct injection units for engines. For E-Class models, the four-cylinder contributes a higher output and torque despite a smaller displacement, it consume up to 23 percent less fuel than before. The strategy is to replace large, naturally aspirated engines with turbocharged units which excel with advantages such as lower weight, reduced internal friction and more economical operating characteristics. While CLS 350 BlueEFFICIENCY is functioned by V6 engines and all the engines for the Mercedes Benz’s Environment-Friendly Petrol Private Car meet the EU5 emission standard.
To perform the best in fuel saving, engineers from every development department have worked together to optimise assemblies and components, to save fuel by means of reduced weight, a new form, improved functioning or efficient energy management.