Mercedes-Benz ML320. Manual — part 163

2001 Mercedes-Benz ML320

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

me

Fig. 63: Torque Converter Lockup Clutch PWM Solenoid Valve, Design
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Structure - The torque converter lockup PWM solenoid valve (Y3/6y6) is sealed off to the valve body of the
shift plate (2a) by an O-ring (34) and a seal (arrow). See Fig. 63. The contact springs (32) on the PWM
converter lockup solenoid valve (Y3/6y6) engage in a slot in the conductor tracks (33). The force of the contact
spring (32) ensures safe contacts.

Modulating Pressure Regulating Solenoid Valve, Location/Task/Design/Function

2001 Mercedes-Benz ML320

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

me

2001 Mercedes-Benz ML320

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

me

Fig. 64: Modulating Pressure Regulating Solenoid Valve, Location/Task/Design/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Modulating Pressure Regulating Solenoid Valve, Location

In the supporting body of the electrical control unit (Y3/6) and pressed against the valve housing of the
shift plate (2a) by means of a leaf spring. See Fig. 64.

Modulating Pressure Regulating Solenoid Valve, Task

To control the modulating pressure depending on the constantly changing operating conditions such as
load/gear changes.

Modulating Pressure Regulating Solenoid Valve, Design

See MODULATING PRESSURE REGULATING SOLENOID VALVE, DESIGN.

Modulating Pressure Regulating Solenoid Valve, Function

The modulating pressure regulating solenoid valve (Y3/6y1) assigns a proportional pressure to the current
which is controlled by the ETC control module (N15/3) according to the load.

Modulating Pressure Regulating Solenoid Valve, Design

2001 Mercedes-Benz ML320

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

me