Automatic Engine Start-Stop Function: Notes

The automatic engine start-stop function (MSA) is a basic element within the array of measures designed to reduce CO2 emissions. By automatically switching off the engine whenever the vehicle is stationary this system reduces fuel consumption. The restart also takes place automatically as soon as the corresponding switch-on conditions required for switch-on are met.

The automatic engine start-stop is carried out by the Digital Engine Electronics (DME). Different information present in the bus system is used for the automatic engine start-stop. Furthermore, additional sensors are required to ensure trouble-free functioning of the automatic engine start-stop.