Level adjustment switch, component description - GF32.31-P-5109GZ

MODEL 164.1 /8

with CODE (489) Airmatic (air suspension with level adjustment and adaptive damping system ADS)

except CODE (430) Offroad package

MODEL 164.8

with CODE (489) AIRmatic (air suspension with level adjustment without ADS adaptive damping system)

with CODE (494) USA version

Location

The level adjustment switch with LED is a component of the upper control panel control unit (N72/1).

Fig 1: Identifying Level Adjustment Switch, Component (Model 164.1 /8)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task

The vehicle level can be raised with the level adjustment switch. The vehicle is then raised approx. 80 mm above the highway level.

In the locked position (vehicle raised), actuation of the level actuators is suppressed by the AIRmatic control unit (N51).

Function

The signals of the level adjustment switch are read in by the upper control panel control unit and transfers the information over the CAN interior to the central gateway control unit (N93). There the information is transmitted to the AIRmatic control unit via the engine compartment CAN.

Actuation of the LEDs in the level adjustment switch is performed in the reverse direction.

In the event of automatic speed-dependent lowering of the vehicle the LED in the level adjustment switch extinguishes.

During the raising process the LED in the level adjustment switch flashes on and off.

A lamp test is run when the ignition is switched off and as long as the engine is not running.

After starting the engine the current driver command is displayed.