ML 320 (163.154) V6-3.2L (112.942) (1998)
Task
The overlap regulating valve regulates the pressure reduction during a shift phase.
Function
During the shift phase the pressure in the deactivating shift actuator is regulated in relation to the engine load (modulating pressure) and the pressure
in the activating actuator. The regulated pressure is inversely proportional to the transfer capacity of the activating shift actuator (regulated overlap).
Related Information
Command Valve
Location/Task/Function
Component Illustration
Location
Each shift group possesses one command valve. The 1-2 / 4-5 and 2-3 command valves are installed in the shift valve housing; the 3-4 command valve
is installed in the valve housing.
Task
The command valve switches the shift group from the stationary phase to the shift phase and back again.
Function
When the end face is unpressurized (stationary phase), the working pressure is directed to the actuated shift element. If the end face of the command
valve is subjected to the shift valve pressure (p-SV) (shift phase), then the shift pressure is switched to the activating element and the overlap pressure
is switched to the deactivating element.
Related Information