Soft switching system (ARA)

This system is installed on vehicles with manual gearbox. Solenoid pump at the right moment minimizes the fuel supply, thereby preventing the "hits" when switching. The electromagnet is controlled by the control unit. Through the speed sensor gear starter unit "recognizes" speed fluctuations at each engine speed.

If errors occur in the electrical system, the control unit determines and stores them in memory for the diagnosis in the workshop. In the future, the service station Mercedes-Benz using a test system optimized connection. It specifically provides for the elimination of beats and hard switching.