The E-Class with its new-generation 4-cylinder engines is particularly efficient. The development theme – higher performance and lower consumption – has been continued undeterred and, thanks to the BlueEFFICIENCY concept, it has been possible to reduce fuel consumption by more than 20 per cent compared with the previous models.

With the exhaust-gas turbocharger, it was possible to increase the efficiency of the 4-cylinder petrol engines considerably. As a result, the optimised 1.8 litre Otto-cycle engines with direct petrol injection and variable valve timing burn fuel particularly efficiently and, thanks to factors including homogeneous direct injection and increased compression, boast a higher output potential than the previous models.

An exceptional result in terms of agility, smoothness of operation, consumption figures and emissions has been achieved by the Mercedes-Benz engineers with the new-concept 4-cylinder diesel powerplant with three output levels.

The engines are significantly stronger, yet at the same time thriftier and cleaner than their preceding models. In order to achieve this, technologies from the BlueEFFICIENCY package of measures were composed for each model individually, so as to attain the greatest possible environmental compatibility. Through the use of further improved common-rail injection systems with injection pressures of up to 2000 bar, high-precision piezo-injectors that enable a particularly rapid and precise dosage of the injected fuel, as well as a new turbocharger concept, the output of the BlueEFFICIENCY powerplants is up to 20 percent higher, while the torque has been increased by as much as 25 percent. At the same time, it was possible to reduce fuel consumption and CO2 emissions by as much as 23% compared with the previous models. Newly-developed ceramic fast glowplugs improve the cold running behaviour, while two Lanchester balancer shafts enhance smoothness of operation, enabling the highest degree of ride comfort.