Page 1305 of 4133
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Overlap Regulating Valve, Location/Task/Function 
Fig. 77: Overlap Regulating Valve, Location/Task/Function  
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.    
Overlap Regulating Valve, Location  
  
Each shift group is assigned one overlap regulating va  lve. The 1-2/4-5 overlap regulating valve (30a) is  
installed in the valve housing of the shift plate (2b)  , the 2-3 overlap regulating valve (30b) and 4-5 (30c)  
are installed in the valve housin  g of the shift plate (2a). See Fig. 77
.  
Overlap Regulating Valve, Location  
  
The overlap regulating valve regulates th  e pressure reduction during a shift phase.  
Overlap Regulating Valve, Function  
  
See   OVERLAP REGULATING VALVE, FUNCTION
. 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMI SSIONS Complete Transmissions - ML 320 - 722.662  
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Overlap Regulating Valve, Function 
Operation - During the shift phase the pressure in the disengaging shift actuator is controlled depending on the 
engine load (modulating pressure (p-Mod)) and the pressure in the engaging shift actuator. The regulated 
pressure is inversely proportional to the transfer capacity of the activating shift actuator (regulated overlap). See 
Fig. 78
. 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1307 of 4133
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1308 of 4133
Fig. 78: Overlap Regulating Valve, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.  
Torque Converter Lockup Clutch Regulating Valve, Location/Task/Function 
Fig. 79: Torque Converter Lockup Clutch Regulating Valve, Location/Task/Function  
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.    
Torque Converter Lockup Clutch Regulating Valve, Location  
  
In the valve housing of the shift plate. See   Fig. 79
.  
Torque Converter Lockup Clutch Regulating Valve, Task 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMI  SSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1309 of 4133
 
Hydraulic control of the torque converter lockup clutch and distribution of the lubricating oil. 
Torque Converter Lockup Clutch Regulating Valve, Function 
 
See TORQUE CONVERTER LOCKUP CLUTCH REGULATING VALVE, FUNCTION
.  
Torque Converter Lockup Clutch Regulating Valve, Function 
Fig. 80: Torque Converter Lockup Clutch Regulating Valve, Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 
Operation - The converter lockup clutch regulating valve (27) regulates the working pressure in the converter 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1310 of 4133

lockup clutch (p-KUB) depending on the control pressure in converter lockup clutch (p-S/KUB). See Fig. 80.
Depending on the working pressure in the converter lockup clutch (p-KUB) the converter lockup clutch (KUB) 
is:  
Engaged  
Disengaged  
N slip mode  
In the lower position of the converter lockup clutch regulating valve (27) lubricating oil (p-Sm) flows through 
the torque converter and oil cooler (65) into the transmission (converter lockup clutch depressurized). In its 
regulating position (slipping, torque converter lockup clutch pressurized), a reduced volume of lubricating oil 
(p-Sm) flows through the annular passage (27a) bypassing the torque converter and passing direct through the 
oil cooler (65) into the transmission. The other part of the lubricating oil (p-Sm) is led via the restrictor (a) into 
the torque converter for cooling the converter lockup clutch (KUB). 
R/P Lock, Location/Task/Design/Function 
 
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1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1311 of 4133
Fig. 81: R/P Lock, Location/Task/Design/Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 
R/P Lock, Location 
 
The R/P lock is integrated in the electronic selector lever module control unit (N15/5). See Fig. 81
. 
R/P Lock, Task 
 
Depending on the prerequisite, the RIP-lockout prevents a shift out of selector lever position "P" or a 
changeover to selector lever position "R" from "N". 
R/P Lock, Design 
 
The R/P lock consists of: 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1312 of 4133
Locking lever (69)  
R/P Locking Solenoid (89)  
Rocker (100)  
Leaf Spring Of Rocker (101)  
Rocker Arm (102)  
Leaf Spring Of Rocker Arm (103)  
R/P Lock, Function 
 
See R/P LOCK, FUNCTION
.  
R/P Lock, Function 
 
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