Page 1297 of 4133
Fig. 70: Shift Pressure Regulating Solenoid Valve, Design
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Operation - The working pressure (p-A) is regulated at th e working pressure regulating valve (22) depending
on the load (modulating pressure (p-Mod)) a nd depending on the gear (p-K1, p-K2). See Fig. 70
. A minimum
level (basic pressure) is adjusted by the spring in the working pressure regulating valve (22).
Regulating Valve Pressure Regulating Valve, Location/Task/Function
Fig. 71: Regulating Valve Pressure Regulating Valve, Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Regulating Valve Pressure Regulating Valve, Location
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMI SSIONS Complete Transmissions - ML 320 - 722.662
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Page 1298 of 4133
In the valve housing of shift plate (2b). See Fig. 71.
Regulating Valve Pressure Regulating Valve, Task
Controls the regulating valve pressures.
Regulating Valve Pressure Regulating Valve, Function
See REGULATING VALVE PRESSURE REGULATING VALVE, FUNCTION
.
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 re
gulating valve (25) depending on the working pressure (p-A). See Fig. 72.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:27 PMPage 129 © 2006 Mitchell Repair Information Company, LLC.
Page 1299 of 4133
Fig. 72: Regulating Valve Pressu re Regulating Valve, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Shift Valve Pressure Regulating Valve, Location/Task/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:27 PMPage 130 © 2006 Mitchell Repair Information Company, LLC.
Page 1300 of 4133
Fig. 73: Shift Valve Pressure Regulati ng Valve, Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Shift Valve Pressure Regulating Valve, Location
In the valve housing of shift plate (2b). See Fig. 73
.
Shift Valve Pressure Regulating Valve, Task
Control of shift valve pressure.
Shift Valve Pressure Regulating Valve, Function
See SHIFT VALVE PRESSURE REGU LATING VALVE, FUNCTION
.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:27 PMPage 131 © 2006 Mitchell Repair Information Company, LLC.
Page 1301 of 4133
Shift Valve Pressure Regulating Valve, Function
Operation - The variable regulating valve pressure (p-RV) is controlled to a constant shift valve pressure (p-
SV) at the shift valve pressure regulating valve (21) and is used to supply the solenoid valves for 1-2 and 4-5
shift, 3-4 shift, 2-3 shift (Y3/6y3, Y3/6y4, Y3/6y5) as well as the PWM solenoid valve for the converter lockup
(Y3/6y6). See Fig. 74
.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:27 PMPage 132 © 2006 Mitchell Repair Information Company, LLC.
Page 1302 of 4133
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:27 PMPage 133 © 2006 Mitchell Repair Information Company, LLC.
Page 1303 of 4133
Fig. 74: Shift Valve Pressure Regulating Valve, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Lubrication Pressure Regulating Valve, Location/Task/Function
Fig. 75: Lubrication Pressure Regulating Valve, Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Lubrication Pressure Regulating Valve, Location
In the valve housing of the shift plate (2a). See Fig. 75
.
Lubrication Pressure Regulating Valve, Task
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMI SSIONS Complete Transmissions - ML 320 - 722.662
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Page 1304 of 4133
Lubricates and cools the mechanical part of the transmission, and limits the pressure in the torque
converter.
Lubrication Pressure Regulating Valve, Function
See LUBRICATION PRESSURE REGULATING VALVE, FUNCTION
.
Lubrication Pressure Regulating Valve, Function
Operation - At the working pressure regulating valve (22) surplus oil is diverted to the lubrication pressure
regulating valve (23), from were the lubrication pressure (p-Sm) is used in regulating amounts to supply the
transmission lubrication system including the torque converter. See Fig. 76
.
Fig. 76: Lubrication 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 3:15:27 PMPage 135 © 2006 Mitchell Repair Information Company, LLC.