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 technology refers to comprehensive vehicle optimisation measures which help to save fuel and ease the burden on the environment. The CLS Coupé combines the most efficient engines with sophisticated aerodynamic features and energy management measures to keep fuel consumption to a minimum.

There are six BlueEFFICIENCY models available for the CLS, equipped with environment-friendly technologies and an extensive range of 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 an entirely new air intake and exhaust system in the BlueDIRECT V6 and V8 petrol engines deliver outstanding torque, output and noise reduction figures. Innovative engine technology has significantly reduced emissions and fuel consumption compared with previous models.

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.

For more information, you can download the Environmental Certificate here: