The ECO start/stop function reduces fuel consumption and vehicle emissions by switching off the engine when the vehicle is standing still and when decelerating. As soon as a gear is engaged, the accelerator is depressed or the driver's foot leaves the brake, the engine restarts automatically.

Significant savings can also come from a series of small contributions. With the aim of making the new C-Class Coupé more fuel efficient, 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 rolling resistance of the tyres has a big influence on a vehicle's consumption. For this reason, Merecedes-Benz deploys tyres with low rolling resistance in the new C-Class Coupé as well. They are formed in a different way and use a different rubber blend to conventional tyres. With unchanged handling and braking characteristics, the rolling resistance can be markedly reduced with them.

The lower a vehicle’s wind resistance (Cd value), the better its energy efficiency can be. Using intelligent design strategies aiming for improved aerodynamics, the Mercedes-Benz engineers have achieved a Cd value of 0.26 for the new C-Class Coupé. Amongst other measures, the shapes of the front and rear aprons and the spoiler lip on the upper boot lid were designed to be aerodynamically efficient; and the external mirrors were positioned with better aerodynamics in mind.

The optimised 7-speed 7G-TRONIC PLUS automatic transmission features a new generation of torque converters which have more dynamic response, greater durability, a further reduced noise level and significantly less fuel consumption. The latter is also as a result of the standard-fit ECO start/stop function together with a systematically adjusted rpm level.