Mercedes-Benz ML320. Manual — part 179

Fig. 103: Temperature Sensor, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Operation

The temperature of the transmission oil has a major influence on the shift time and thus on the shift quality. It is
possible to optimize the gear shifts in all temperature ranges by detecting the oil temperature. See Fig. 103.

2001 Mercedes-Benz ML320

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

me

The transmission oil temperature sensor (Y3/6b1) is connected in series with the starter lockout contact
(Y3/6s1). The temperature signal is transmitted to the ETC control module (N15/3) only the dry-reed contact of
the starter lockout contact (Y3/6s1) is closed.

Selector Valve, Location/Task

Fig. 104: Selector Valve, Location/Task
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Selector Valve, Location

The selector valve (52) is located in the valve housing of the shift plate (2a). See Fig. 104.

Selector Valve, Task

Distributes pressure to the appropriate hydraulic components according to the selector lever position

2001 Mercedes-Benz ML320

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

me

selected by the driver.

Torque Converter Lock-Up Clutch, Location/Task/Design/Function

Fig. 105: Torque Converter Lockup Clutch, Location/Task/Design/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Torque Converter Lockup Clutch, Location

The torque converter lockup clutch is integrated in the torque converter. See Fig. 105.

Torque Converter Lockup Clutch, Task

The torque converter lockup clutch minimizes the power losses of the torque converter and as a result
reduces the engine speed and improves the efficiency of the transmission.

Torque Converter Lockup Clutch, Design

2001 Mercedes-Benz ML320

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

me

The external plate carrier (16a) is connected to the impeller (P) via the cover shell (17). The internal plate
carrier (16b) is connected to the turbine wheel (T).

Torque Converter Lockup Clutch, Function

See Torque Converter Lockup Clutch, Function. See TORQUE CONVERTER LOCKUP
CLUTCH, FUNCTION.

Torque Converter Lockup Clutch, Function

2001 Mercedes-Benz ML320

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

me