Mercedes-Benz ML320. Service manual - part 159

 

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Mercedes-Benz ML320. Service manual - part 159

 

 

Fig. 54: Park Pawl, Function 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 

In selector lever position "P" the cone (42) moves between the park detent (43) and pilot bushing (40). The 
parking lock pawl (43) is therefore pushed against the parking lock gear (4). See Fig. 54. If the tooth of the 
parking lock pawl (43) does not engage in a tooth space when the vehicle is stationary, but rather touches a 

 

2001 Mercedes-Benz ML320 

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

  

me 

 

tooth of the parking lock gear (4), the cone (42) is pre-tensioned by the spring (41) and positioned ready for 
operation. If the parking lock gear (4) continues to turn, the parking lock pawl (43) engages in the next tooth 
space. 

To prevent damage due to misuse, the intervals between the tooth gaps are such that the park detent (43) can 
only engage when the vehicle is stationary or crawling at low speed. If the vehicle rolls faster, the shape of the 
teeth prevents the parking lock pawl (43) from engaging. 

Planetary Gear Set, Location/Task/Design/Function 

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 55: Planetary Gear Set 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 

Planetary Gear Set, Location 

 

2001 Mercedes-Benz ML320 

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

  

me 

 

 
Three planetary gear sets are used to produce the different gear ratios. These are located in the mechanical 
part of the transmission as the front, center and rear planetary gear set (V, M, H). See Fig. 55

Planetary Gear Set, Task 
 
Power transmission and production of different gear ratios. 

Planetary Gear Set, Design 
 
A planetary gear set consists of the ring gear (1), the planet gears (2) carried in the planet carrier (4) and 
the sun gear (3). 

Planetary Gear Set, Function 
 
See PLANETARY GEAR SET, FUNCTION.  

Planetary Gear Set, Function 

 

2001 Mercedes-Benz ML320 

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

  

me 

 

 

 

 

 

 

 

 

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