Efficient gasoline engine with spray-guided piezo direct injection
Boasting an output of around 220 kW (300 hp), the V6 gasoline engine underscores the sporty nature of the F 800 Style. The engine is very efficient, thanks to its spray-guided direct injection system with highly precise piezo injectors. In 2006 Mercedes-Benz became the world’s first automotive brand to introduce spray-guided gasoline direct injection as standard. The system improves thermodynamic efficiency to enable better fuel utilization and therefore reduced fuel consumption. A key advantage comes to the fore when the engine is in its stratified operating mode, in which it runs with high excess air and thus achieves excellent fuel efficiency.
Because the combustion process was consistently enhanced, the Mercedes direct injection engine can maintain this advantageous “lean operation” across a wider engine speed and load range. In addition, it supplies fuel to the combustion chambers several times in succession at intervals of a fraction of a second during each power stroke. In this way, it was possible to further improve mixture formation, combustion, and fuel efficiency.