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

MODEL 221 with CODE (489) Airmatic (semi-active air suspension) up to Model Year 8 

The level adjustment switch, with an LED for function indicator, is integrated in the cockpit switch group.

The level adjustment switch is designed as a push/push button. It is therefore a button which changes its control state by the number of operations.

The driver can choose between normal level (NN) and higher level (EN1); each time the button is pressed this affects the change to a different driver requirement.

The cockpit switch group in which the level adjustment switch is integrated is read in by the upper control panel control unit (N72/1) via the upper control panel LIN.

The level adjustment switch has two switch positions:

• Adjust level and
• neutral (switch not operated)

Function example:

Operating the level adjustment switch increases the ground clearance of the vehicle and the LED in the level adjustment switch lights up.

The transmission of the switch position from the upper control panel control unit to the AIRmatic with ADS control unit (N51) and the actuation of the LED in the level adjustment switch (opposed) takes place via the:

• Cockpit switch group
• Upper control panel LIN [local interconnect network]
• Upper control panel control unit
• Interior CAN
• Central gateway control unit (N93)
• Chassis CAN
• AIRmatic with ADS control unit