Mercedes-Benz ML320. Service manual - part 143

 

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Mercedes-Benz ML320. Service manual - part 143

 

 

Automatic Transmission, Selector Lever Positions 
 
See AUTOMATIC TRANSMISSION, SELECTOR LEVER POSITIONS

Automatic Transmission, Gear Ratios 
 
See AUTOMATIC TRANSMISSION, GEAR RATIOS

Power Transmission, Function 
 
See AUTOMATIC TRANSMISSION, POWER TRANSMISSION, FUNCTION

Gearshift System, Function 
 
See FUNCTION OF GEAR SHIFT

Hydropneumatic Transmission Control, Function 
 
See HYDROPNEUMATIC TRANSMISSION CONTROL, FUNCTION

Shift-Lock, Function 
 
See SHIFT-LOCK FUNCTION.  

Park Pawl Interlock, Function 

 

2001 Mercedes-Benz ML320 

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

  

me 

 

Fig. 19: Park Pawl Interlock, Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 

Operation  

The parking lock interlock prevents unauthorized release of the parking lock.

 

2001 Mercedes-Benz ML320 

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

  

me 

 

If the parking lock is engaged, the ignition key has been removed and the service brake is not activated, the 
locking pawl (39) blocks the detent plate (38). See Fig. 19. The park pawl cannot be released. The park pawl 
can only be released by turning the ignition key to position "1" and pressing the brake pedal. Starting from 
ignition key position "1" the locking cam (61) in the steering lock releases the control cable (53). When the 
brake pedal is depressed, the lock lever (55) and roller (58) are twisted down, the return spring at the brake 
pedal (57) is tensionsed and the release lever (56) is released. 

The force of the pressure spring (64) is now applied via the cables (53, 54) against the lesser force of the 
pressure spring (62) and pulls the locking valve (60) in front of the contour of the locking cam (61). The locking 
pawl (39) is simultaneously turned via the link rod and lifts up off the detent plate (38). 

The parking lock can now be released. 

The design of the parking lock interlock is the same as for the steering lock interlock and it functions with 
reciprocal action to the steering lock interlock. 

Steering Lock Interlock, Function 

 

2001 Mercedes-Benz ML320 

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

  

me 

 

Fig. 20: Steering Lock Interlock, Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

 

2001 Mercedes-Benz ML320 

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

  

me 

 

 

 

 

 

 

 

 

Content   ..  141  142  143  144   ..