Page 1433 of 4133
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1434 of 4133
Fig. 149: Floor Shift, Function  
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.   
Location/Task/Design/Function Of R/P Lock (Without Touch Shift) 
Fig. 150: R/P Lock Without Touch Shift  
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMI  SSIONS Complete Transmissions - ML 320 - 722.662  
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Saturday, October 02, 2010 3:15:29 PMPage 265 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 1435 of 4133
R/P Lock, Location 
 
The R/P lock is located in the floor shift. See Fig. 150
. 
R/P Lock,Task 
 
Prevents unintentional shifts to the selector lever positions "R" and "P" at driving speeds in excess of 
approximately 10 km/h. 
R/P Lock, Design 
 
The R/P lock consists of: 
The cam (69b) which is rigidly connected to the shift shaft (66).  
The lever (69s).  
The reverse and parking lock solenoids (Y66/1).  
The support lever (69c).  
R/P Lock, Function 
 
See R/P LOCK, FUNCTION (WITHOUT TOUCH SHIFT)
.  
R/P Lock, Function (Without Touch Shift) 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1436 of 4133
Fig. 151: R/P Lock, Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 
Operation  
The reverse and parking lock solenoid (Y66/1) is actuated via the ETC control module (N15/3) and moves the 
lever (69a) in the direction of the cam (69b) so that the shift shaft (66) is blocked. See Fig. 151
. When de-
energized, the support lever (69c) holds the lever (69a) in position to prevent it from engaging by itself when 
exposed to severe shocks. 
Location/Task/Design/Function Of R/P Lock (With Touch Shift) 
R/P Lock, Location 
 
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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        Page 1437 of 4133
The R/P lock is integrated in the electronic selector lever module control module (N15/5). 
R/P Lock, Task 
 
Depending on the condition the R/P lock prevents shifting out of selector lever position "P" or changing 
into selector lever position "R" from "N". 
R/P Lock, Design 
 
The R/P lock consists of: 
The locking disc (69) rigidly connected to the selector lever (80).  
The locking lever (90).  
The R/P locking solenoid (89).  
R/P Lock, Function 
 
See R/P LOCK, FUNCTION
.  
R/P Lock, Function (With Touch Shift) 
 
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 268 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 1438 of 4133
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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Saturday, October 02, 2010 3:15:29 PMPage 269 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 1439 of 4133
Fig. 152: R/P Lock, Function (Locking Position)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 
Function Of R Lock  
Above a speed of approximately 10km/h the R/P locking solenoid (89) is actuated by the electronic selector 
lever module control module (N15/5). See Fig. 152
. The R/P lock lever (90) is turned to the lock position (shift 
from "N" to "R"). The tab on the lock lever (R lock) (90c) locks (R-lock (69c) the locking disc (69). The 
selector lever (80) cannot be shifted into selector lever position "R".
 
2001 Mercedes-Benz ML320 
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        Page 1440 of 4133
 
2001 Mercedes-Benz ML320 
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662  
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Saturday, October 02, 2010 3:15:29 PMPage 271 © 2006 Mitchell Repair Information Company, LLC.