BlueEFFICIENCY from Mercedes-Benz stands for pioneering efficiency technologies as well as innovative packages of measures based on optimising fuel consumption and emission levels.
BlueEFFICIENCY measures are comprehensive vehicle optimisations that help to save fuel and ease the burden on the environment. The new E-Class Saloon combines the most efficient engines with well-designed aerodynamic and energy management measures to keep fuel consumption to a minimum.
The ECO display shows the driver an evaluation of his driving style in the speedometer field of the instrument cluster so that he can check how efficiently he is driving and make adjustments where required.
The ECO start/stop function reduces fuel consumption and emissions by switching off the engine automatically when the car comes to a stop (e.g. in traffic jams or at traffic lights). If a vehicle is equipped with the ECO start/stop function, a starter-alternator is installed in place of the starter.
Intelligent control electronics allow the starter-alternator to supply the electrical energy for the vehicle’s electrical system and, in starter mode, the torque required to start the engine.
Significant savings can also come from a series of small contributions. With the aim of reducing the consumption of the E-Class Saloon, the Mercedes-Benz engineers examined all the main components with regard to their energy usage and found ways of getting them to work more economically.
Overview of efficient energy management measures:
The latest-generation CDI diesel engines combine irresistible performance characteristics with low consumption. Injection pressure has been increased, smoothness of operation enhanced and noise levels optimised – while reduced compression makes for lower emission levels.
Direct injection, increased compression and turbocharging (turbocharging in some of the 6-cylinder petrol engines and the V8 engines) deliver outstanding torque, output and noise reduction figures for the petrol engines. Thanks to innovative engine technology it has been possible to significantly reduce emissions and fuel consumption compared with previous models.
The E 300 BlueTEC HYBRID is a milestone in terms of economy, sustainability and comfort. It combines a 4-cylinder diesel engine with an electric motor thus making the E-Class Saloon one of the most efficient models in its vehicle class.
The C 220 CDI BlueEFFICIENCY Edition special model reduces CO2 emissions to less than 119 grams per kilometre on average.
The new BlueDIRECT V6 and V8 engine generation includes measures such as downsizing and direct petrol injection. The V8 engines also have two compact turbochargers for a fast response. Thanks to innovative BlueDIRECT engine technology, it has been possible to reduce emissions and fuel consumption by up to 24 percent compared with the predecessor models.
BlueTEC catalytic converter technology uses the reactant AdBlue® to purify exhaust gases. This makes it possible to reduce nitrogen oxide emissions by up to 90 percent. This exceptionally clean diesel technology is implemented in the E 350 BlueTEC. It already complies with the requirements of the future Euro 6 emissions standard.
Mercedes-Benz is the only automotive brand in the world to have received an ISO-standard Environmental Certificate. For this certification, the vehicle models have to meet strict requirements and undergo stringent controls in their development, production and recycling. Our goal is to make environmental protection objectively measurable and to make it possible for you as the driver to experience it concretely.
(E 220 CDI BlueEFFICIENCY Edition: Fuel consumption combined: 4.5 l/100 km, CO2 emissions combined: 119 g/km; E 300 BlueTEC HYBRID: Fuel consumption combined: Diesel: 4.2-4.1 l/100 km, CO2 emissions combined: Diesel: 110–107 g/km)
 Not available for the E 300 BlueTEC HYBRID.  The figures shown for fuel consumption and CO2 emissions were obtained in accordance with the prescribed measuring process (Regulation [EC] 715/2007 in its currently applicable version). The figures are not based on an individual vehicle and do not constitute part of the product offer; they are provided solely for purposes of comparison between different vehicle models.