ML 55 AMG (163.174) V8-5.5L (113.981) (2001)
Valve Body: Description and Operation
Models With Touch Shift
Electric Control Unit
Arrangement/Purpose/Design/Function
Component Illustration
Position
Screwed onto the shift plate.
Task
To receive various input signals and to convert the control module information into hydraulic functions.
Design
The electric valve control unit (Y3/6) consists of a plastic shell which houses the RPM sensors (Y3/6n2, Y3/6n3), regulating solenoid valves (Y3/6y1,
Y3/6y2), solenoid valves (Y3/6y3, Y3/6y4, Y3/6y5), the PWM solenoid valve (Y3/6y6), the starter interlock contact (Y3/6s1) and the transmission oil
temperature sensor (Y3/6b1). Conductor tracks integrated into the shell connect the electric components to a plug connection (11).
This 13-pin plug connection (11) establishes the connection to the vehicle-side cable harness and to the ETC control module (electronic transmission
control) (N15/3) by means of a bayonet lock.
With the exception of the solenoid valves, all other electric components are fixed to the conductor tracks.
Function
Signals from the ETC control module (N15/3) are converted into hydraulic functions in the electric valve control unit (Y3/6). The RPM sensors
(Y3/6n2, Y3/6n3), starter interlock contact (Y3/6s1) and transmission oil temperature sensor (Y3/6b1) of the electric valve control unit (Y3/6) supply
the ETC control module (N15/3) with input signals. The solenoid valves are controlled by the ETC control module (N15/3) and trigger the hydraulic
functions.