Features of the type system used on the described engines "Common Rail":
- Application of direct fuel injection into engine cylinders.
- Fuel metering using an electronic control system. In this case, the high-pressure fuel pump does not participate in fuel dosing and synchronization of fuel ignition processes. The task of the high-pressure fuel pump is to create in the fuel manifold (battery) high pressure required issued moment fuel pressure. The fuel injection pump control mechanisms are controlled by the electronic fuel injection control system.
- The use of high-speed fuel injectors, which are controlled by an electronic fuel injection control system.
- High efficiency of fuel injection control processes. This is made possible by the use of a high-speed digital processor, which is designed to generate control action on the executive bodies of the control system based on information received from a number of sensors.
Thus, the Common Rail system allows the implementation of fuel supply system operating modes that are not available to fuel supply systems with mechanical or electronic-mechanical regulation.
The direct injection diesel fuel system provides the following engine performance options depending on the power and the applied emission standard of harmful substances (this description is given for engines not equipped with a particulate filter):
Information copied from the website: mercedesman
- (code MC1): diesel engine OM646 DE 22LA, 65 kW (88 hp), at 3800 rpm, including with additional performance codes (equipment):
- with code MS3: Euro 3 version;
- with code MF8: low emission engine (EU3 Group 3).
- (code MC2): Diesel engine OM646 DE22LA, 80 kW (109 hp), at 3800 rpm, including with additional performance codes (equipment):
- with code MS3: Euro 3 version;
- with code MF8: low emission engine (EU3 Group 3);
- with code MF4: low emission engine (EU4 Group 3).
- (MSZ code): diesel engine OM646 DE 22LA 110 kW (150 hp), at 3800 rpm, including with additional performance codes (equipment):
- with code MS3: Euro 3 version;
- with code MF8: low emission engine (EU3 Group 3);
- with code MF4: low emission engine (EU4 Group 3).