Level sensor, location/task/design/function - GF32.31-P-4400B
MODELS 211, 240 with CODE (489a) Airmatic (semi-active air suspension)
MODEL 220 except CODE (487a) Active body control (ABC)
| Level sensor, location | Model 211 | GF32.31-P-4400-01E |
| Model 220 | GF32.31-P-4400-01B | |
| Model 240 | GF32.31-P-4400-01MB | |
| Level sensor, task | Detecting the vehicle level at the front axle and rear axle and supplying the values to the AIRmatic with ADS control module. | |
| Level sensor, design | 2 Hall sensors in a single housing (redundant design). | |
| Level sensor, function | Detects vehicle level using link rod from upper transverse control arm at left and right front axle. A sensor at the rear axle monitors the movement of the torsion bar and determines the average vehicle level. Sensor failure is detected by comparing the redundant signals of each sensor. |