The completely newly developed OM 654 four-cylinder diesel engine was launched as the E 220 d in the new E-Class. Installed in a comparable vehicle, the new engine consumes around 13 percent less fuel than its predecessor. Besides the optimised air ducting on both the intake and exhaust sides, and the use of fourth-generation common-rail injection with pressures up to 2,050 bar, the approximately 25-percent reduction of internal friction forces also played a major role in achieving this. The new OM 654 is the first member of a modular-construction engine family which will be used across the entire Mercedes-Benz product portfolio. Several power stage variants are planned as well as longitudinal or transverse mounting in vehicles with front, rear or 4MATIC all-wheel drive systems.
