Mercedes-Benz ML320. Manual — part 206

See KICKDOWN SWITCH, LOCATION/TASK/DESIGN/FUNCTION MODEL 163 WITHOUT
TOUCH SHIFT.

Starter Lock-Out Contact, Location/Task/Design/Function

See STARTER LOCK-OUT CONTACT, LOCATION/TASK/DESIGN/FUNCTION.

Temperature Sensor, Location/Task/Design/Function

See TEMPERATURE SENSOR, LOCATION/TASK/DESIGN/FUNCTION.

Wheel Speed Sensor, Location/Task/Function

See WHEEL SPEED SENSOR, LOCATION/TASK/FUNCTION.

Location/Task/Design/Function Of Oil Pump

See LOCATION/TASK/DESIGN/FUNCTION OF OIL PUMP.

Kickdown Switch, Location/Task/Design/Function Model 163 Without Touch Shift

2001 Mercedes-Benz ML320

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

me

Fig. 161: Kickdown Switch
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Kickdown Switch Position

The kickdown switch (S16/6) is located in the footwell behind the accelerator pedal. See Fig. 161.

Kickdown Switch Task

Influencing the shift program of the electronic transmission control.

Kickdown Switch Design

The kickdown switch (S16/6) consists of a spring-tensioned electrical switch contact.

Kickdown Switch Function

2001 Mercedes-Benz ML320

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

me

When the kick-down switch (S16/6) is operated via the accelerator pedal a signal is passed on to the ETC
control module (N15/3). Based on this information the ETC control module (N15/3) actuates the solenoid
valves so that the upshifts and downshifts take place at higher engine speed.

Shift-Lock Function

Operation

The term shift lock combines the functions which, in addition to the parking brake, offer an additional safeguard
for the vehicle to prevent it moving off unintentionally.

These include the functions of locking the selector lever position "P" and locking the ignition lock as well as the
parking lock in the transmission.

The shift lock function only allows shifting out of selector lever position "P" if the transmitter key (A8/1) has
been turned into the position "Ignition: ON" and the brake pedal is depressed.

In order to ensure that after parking the vehicle the selector lever is shifted into selector lever position "P", the
transmitter key (A8/1) can only be turned towards "0" in this position and removed from the EZS control
module (N73) (ignition lock locking, function).

The vehicle is secured mechanically by blocking the park pawl gear.

In the event of mechanical or electrical/electronic faults it is possible to unlock selector lever position "P"
manually (shift lock override function).

Function Of Locking Of Selector Lever Position "P"

See FUNCTION OF LOCKING OF SELECTOR LEVER POSITION "P".

Ignition Lock Locking, Function

See IGNITION LOCK INTERLOCK.

Function Of Shift Lock Override

See FUNCTION OF SHIFT LOCK OVERRIDE.

Function Of Locking Of Selector Lever Position "P" (With Touch Shift)

Operation

2001 Mercedes-Benz ML320

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

me

Fig. 162: Function Of Locking Of Selector Lever Position "P"
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

One of the functions of the shift lock is to lock the selector lever in position "P". The selector lever is locked
electronically. See Fig. 162.

The selector lever remains disabled in position "P", if the brake is not operated or there is no power supply to
the electronic selector lever module control module (N15/5) (circuit 87).

The electronic selector lever module control module (N15/5) actuates the R/P lock solenoid valve (89) from the

2001 Mercedes-Benz ML320

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

me