Page 1409 of 4133

as regulated by the overlap regulating valve.
Initializes 2nd gear in limp-home mode.
Shift Pressure Regulating Solenoid Valve, Location/Task/Design/Function
See SHIFT PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Shift Pressure Regulating Valve, Location/Task/Function
See SHIFT PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Overlap Regulating Valve, Location/Task/Function
See OVERLAP REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Upshift/Downshift Solenoid Valve, Location/Task/Design/Function
See UPSHIFT/DOWNSHIFT SOLENOID VALVE, LOCATION/TASK/DESIGN/FUNCTION
.
Modulating Pressure Regulating Solenoid Valve, Location/Task/Design/Function
See MODULATING PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Location/Task/Design/Function Of PWM Solenoid Valve, Torque Converter Lockup Clutch
See LOCATION/TASK/DESIGN/FUNCTION OF PWM SOLENOID VALVE, TORQUE
CONVERTER LOCKUP CLUTCH.
Multiple-Disc Brake, Location/Task/Design/Function
See NMULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multiplate Clutch, Location/Task/Design/Function
See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Holding Pressure Shift Valve, Location/Design/Function
See HOLDING PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Shift Pressure Shift Valve, Location/Design/Function
See SHIFT PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Command Valve, Location/Design/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:29 PMPage 240 © 2006 Mitchell Repair Information Company, LLC.
Page 1410 of 4133

See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Selector Valve, Location/Task
See SELECTOR VALVE, LOCATION/TASK
.
Location/Task/Design/Function Of Oil Pump
See LOCATION/TASK/DESIGN/FUNCTION OF OIL PUMP
.
Modulating Pressure, Function
Operation
The modulating pressure influences the size of the working pressure and determines together with the shift
pressure the pressure regulated at the overlap regulating valve.
The modulating pressure is regulated at the modulating pressure regulating solenoid (Y3/6y1), which is under
regulating valve pressure. The modulating pressure via variable and relative to the engine load.
Modulating Pressure Regulating Solenoid Valve, Location/Task/Design/Function
See MODULATING PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Working Pressure Regulating Valve, Location/Task/Function
See WORKING PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Overlap Regulating Valve, Location/Task/Function
See NOVERLAP REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Upshift/Downshift Solenoid Valve, Location/Task/Design/Function
See UPSHIFT/DOWNSHIFT SOLENOID VALVE, LOCATION/TASK/DESIGN/FUNCTION
Shift Pressure Control Solenoid Valve, Location/Task/Design/Function
See SHIFT PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Location/Task/Design/Function Of PWM Solenoid Valve, Torque Converter Lockup Clutch
See LOCATION/TASK/DESIGN/FUNCTION OF PWM SOLENOID VALVE, TORQUE
CONVERTER LOCKUP CLUTCH.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:29 PMPage 241 © 2006 Mitchell Repair Information Company, LLC.
Page 1411 of 4133
Multiple-Disc Brake, Location/Task/Design/Function
See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multiplate Clutch, Location/Task/Design/Function
See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Holding Pressure Shift Valve, Location/Design/Function
See HOLDING PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Shift Pressure Shift Valve, Location/Design/Function
See SHIFT PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Command Valve, Location/Design/Function
See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Selector Valve, Location/Task
See SELECTOR VALVE, LOCATION/TASK
.
Location/Task/Design/Function Of Oil Pump
See LOCATION/TASK/DESIGN/FUNCTION OF OIL PUMP
.
Regulating Valve Pressure Regulating Valve, Location/Task/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:29 PMPage 242 © 2006 Mitchell Repair Information Company, LLC.
Page 1412 of 4133
Fig. 136: Regulating Valve Pressure Regu lating Valve, Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Regulating Valve Pressure Regulating Valve, Location
In the valve housing of shift plate (2b). See Fig. 136
.
Regulating Valve Pressure Regulating Valve, Task
Controls the regulating valve pressures.
Regulating Valve Pressure Regulating Valve, Function
See REGULATING VALVE PRESSURE REGULATING VALVE, FUNCTION
.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:29 PMPage 243 © 2006 Mitchell Repair Information Company, LLC.
Page 1413 of 4133
Regulating Valve Pressure Regulating Valve, Function
Operation
The regulating valve pressure (p-RV) is controlled up to the maximum pressure at the regulating valve pressure
regulating valve (25) depending on the working pressure (p-A).
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:29 PMPage 244 © 2006 Mitchell Repair Information Company, LLC.
Page 1414 of 4133

Fig. 137: Regulating Valve Pressure Regulating Valve, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Regulating Valve Pressure, Function
Operation
The regulating valve pressure is regulated at the regulating valve pressure regulating valve depending on the
working pressure up to a maximum pressure of 8 bar. It supplies the modulating pressure regulating solenoid
valve (Y3/6y1), the shift pressure regulating solenoid valve (Y3/6y2) and the shift valve pressure regulating
valve.
Regulating Pressure Valve Pressure Regulating Valve, Location/Task/Function
See REGULATING VALVE PRESSURE REGULATING VALVE,
LOCATION/TASK/FUNCTION.
Shift Pressure Regulating Solenoid Valve, Location/Task/Design/Function
See SHIFT PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Modulating Pressure Regulating Solenoid Valve, Location/Task Design/Function
See MODULATING PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Shift Valve Pressure Regulating Valve, Location/Task/Function
See SHIFT VALVE PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Upshift/Downshift Solenoid Valve, Location/Task/Design/Function
See UPSHIFT/DOWNSHIFT SOLENOID VALVE, LOCATION/TASK/DESIGN/FUNCTION
.
Multiple-Disc Brake, Location/Task/Design/Function
See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multiplate Clutch, Location/Task/Design/Function
See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Holding Pressure Shift Valve, Location/Task/Function
See HOLDING PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:29 PMPage 245 © 2006 Mitchell Repair Information Company, LLC.
Page 1415 of 4133

Shift Pressure Shift Valve, Location/Task/Function
See SHIFT PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Overlap Regulating Valve, Location/Task/Function
See OVERLAP REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Location/Task/Function Of Command Valve
See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Selector Valve, Location/Task
See SELECTOR VALVE, LOCATION/TASK
.
Location/Task/Design/Function Of Oil Pump
See LOCATION/TASK/DESIGN/FUNCTION OF OIL PUMP
.
Shift Valve Pressure, Function
Operation
The shift valve pressure is derived from the regulating valve pressure, regulated at the shift valve pressure
regulating valve and is then present:
1-2 And 4-5 Shift Solenoid Valve (Y3/6Y3)
3-4 Shift Solenoid Valve (Y3/6Y4)
2-3 Shift Solenoid Valve (Y3/6Y5)
Torque Converter Lockup PWM Solenoid Valve (Y3/6Y6)
3-4 And 2-3 Shift Pressure Valve Shift Valve
The shift valve pressure controls the command valves via the upshift/downshift solenoid valves.
Upshift/Downshift Solenoid Valve, Location/Task/Design/Function
See UPSHIFT/DOWNSHIFT SOLENOID VALVE, LOCATION/TASK/DESIGN/FUNCTION
.
Location/Task/Design/Function Of PWM Solenoid Valve, Torque Converter Lockup Clutch
See LOCATION/TASK/DESIGN/FUNCTION OF PWM SOLENOID VALVE, TORQUE
CONVERTER LOCKUP CLUTCH.
Shift Pressure Regulating Valve, Location/Task/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:29 PMPage 246 © 2006 Mitchell Repair Information Company, LLC.
Page 1416 of 4133

See SHIFT PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION.
Shift Pressure Shift Valve, Location/Design/Function
See SHIFT PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Shift Valve Pressure Regulating Valve, Location/Task/Function
See SHIFT VALVE PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Shift Pressure Regulating Solenoid Valve, Location/Task/Design/Function
See SHIFT PRESSURE REGULATING SOLENOID VALVE,
LOCATION/TASK/DESIGN/FUNCTION.
Multiple-Disc Brake, Location/Task/Design/Function
See MULTIPLE
-DISC BRAKE, LOCATION/TASK/DESIGN/FUNCTION.
Multiplate Clutch, Location/Task/Design/Function
See MULTI
-PLATE CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Holding Pressure Shift Valve, Location/Design/Function
See HOLDING PRESSURE SHIFT VALVE, LOCATION/TASK/FUNCTION
.
Overlap Regulating Valve, Location/Design/Function
See OVERLAP REGULATING VALVE, LOCATION/TASK/FUNCTION
.
Location/Task/Function Of Command Valve
See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Selector Valve, Location/Task
See SELECTOR VALVE, LOCATION/TASK
.
Location/Task/Design/Function Of Oil Pump
See LOCATION/TASK/DESIGN/FUNCTION OF OIL PUMP
.
Overlap Regulating Valve, Location/Task/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
me
Saturday, October 02, 2010 3:15:29 PMPage 247 © 2006 Mitchell Repair Information Company, LLC.