A3 | Drive control (CPC) control unit |
A4 | Engine management control unit (MCM) |
CAN 4 | Drive train CAN |
S600 | Engine start and engine stop button |
G07.00-3110-75
Shown on engine 471.9 |
A4 | Engine management control unit (MCM) |
CAN 4 | Drive train CAN |
Y608 | Cylinder 1 fuel injector |
Y609 | Cylinder 2 fuel injector |
Y610 | Cylinder 3 fuel injector |
Y611 | Cylinder 4 fuel injector |
Y612 | Cylinder 5 fuel injector |
Y613 | Cylinder 6 fuel injector |
S600 | Engine start and engine stop button |
G07.16-3140-76
General
The shutting down process of the engine is initiated when a corresponding shutdown request is received via the drive CAN (CAN 4). For example, when switching off the engine via corresponding actuation of the engine start and engine stop button (S600) or via the ignition lock.
Function
As soon as the engine management (MCM) control unit (A4) receives a corresponding shutdown request via the drive CAN (CAN 4) or the engine start and engine stop button (S600) is actuated with the engine running, it interrupts the actuation of the fuel injectors for cylinders 1 to 6 (Y608 to Y613). The fact that no further injection occurs means that the engine comes to a standstill and stops.
At engine oil temperatures of less than 70 °C, the engine brake is activated in addition so that the engine can "coast down" when shutting down. At engine oil temperatures higher than 70 °C, it is therefore possible that the engine "vibrates" when shutting down.
The shutting down process of the engine via the battery disconnection switch (B33) is not recommended.
The shutting down process of the engine via the battery disconnection switch (B33) is therefore to be used only in an emergency.