The new Mercedes-Benz four-cylinder diesel engine for passenger cars

Following a successful optimisation programme lasting several years for the previous four-cylinder diesel engine whose basic dimensions are still based on the OM 601 prechamber natural aspirated engine of the year 1983, Mercedes-Benz has developed a completely new engine, bearing the internal designation OM 651, to production maturity. The potential of this engine in terms of consumption, emissions and performance was achieved through the systematic advancement of familiar technologies and the use of important new engine-related innovations.