Level sensor, component description - GF32.31-P-5105GZ

MODEL 164.1 /8 with CODE (489) Airmatic (air suspension with level adjustment and adaptive damping system ADS)

MODEL 164.8

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

with CODE (494) USA version

Shown on right front level sensor on model 164.1

Fig 1: Identifying Level Sensor Component (Shown On Right Front Level Sensor On Model 164.1)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location

One left front level sensor (B22/8), right front level sensor (B22/9), left rear level sensor (B22/7) and a right rear level sensor (B22/10) each.

Task

The level sensors serve to determine the current vehicle level.

Function

The AIRmatic control unit (N51) supplies the level sensor with a rated voltage of 5 V. The level sensor uses this to provide two contrasting variable voltage signals, depending on the level in which the vehicle is in at any given time.

If the vehicle level changes, then a voltage signal increases linearly while the voltage of the contrasting signal decreases linearly.