Level Sensor, Basic Function - GF32.31-P-2001A
Model All (4xWD)
Model All (CAR)
Example illustration of front axle level sensor
Example illustration of rear axle level sensor
Overview
This document contains information on:
- General
- Function
General
The level sensors (1.1, 1.2, 1.3, 1.4) record the current vehicle level. This information is required for controlling the automatic headlamp range control (HRA), among other things.
Function
The upward and downward movements of the lower transverse control arms are transferred through one linkage to the levers of the level sensors (1.1, 1.2, 1.3, 1.4). These changes in angle of the levers generate different voltages in the level sensors (1.1, 1.2, 1.3, 1.4). These are sent as permanent signals, e.g. to the adaptive damping system (ADS) control unit or to the suspension and damping system control unit.
The signals from the level sensors (1.1, 1.2, 1.3, 1.4) are used to calculate the vehicle level and are therefore used to calculate the current damper stage (vehicles with adjustable damping or with air suspension) or for automatic headlamp range control (LED headlamps).
Level sensors (1.1, 1.2, 1.3, 1.4) are installed on all wheel suspensions on vehicles with adjustable damping or air suspension.
On vehicles with LED headlamps and without adjustable damping or air suspension, level sensors (1.1 and 1.3 or 1.2 and 1.4) are installed on one side at the front and rear. Depending on the vehicle involved, this can be the left or the right side.
On vehicles with rear axle level control, the level sensors (1.3, 1.4) are installed on the wheel suspensions of the rear axle.
| Vehicle and equipment | Front left level sensor Left (1.1) |
Front right level sensor (1.2) | Rear left level sensor (1.3) | Rear right level sensor (1.4) | Rear axle level sensor |
|---|---|---|---|---|---|
| Model 118, 177, 247 | |||||
| Vehicle with LED headlamps without adjustable damping | - | x (LED headlamps, dynamic) | - | x (Multi-link axle) | x (Torsion-beam axle) |
| Vehicle with adjustable damping | x | x | x | x | - |
| Model 167 | |||||
| Vehicle with LED headlamps without air suspension | x | - | x | - | |
| Vehicle with air suspension | x | x | x | x | - |
| Model 206, 223, 232, 254, 295, 296, 297, 465 | |||||
| All variants | x | x | x | x | - |
| Model 243 | |||||
| Vehicle with LED headlamps without adjustable damping | - | - | - | x | - |
| Vehicle with adjustable damping | x | x | x | x | - |
| Model 290, 213, 238, 257 (as of model year 2021) | |||||
| All variants | x | x | x | x | - |
| Model 293 | |||||
| All variants | x | - | x | x | - |
| Component descriptions | |||
| Level sensor, component description | Model 223 | GF32.31-P-5105A | |
| Model 243 | GF32.31-P-5105B | ||
| Model 206 | GF32.31-P-5105C | ||
| Model 297 | GF32.31-P-5105D | ||
| Model 295 | GF32.31-P-5105E | ||
| Model 232 | GF32.31-P-5105F | ||
| Model 296 | GF32.31-P-5105G | ||
| Model 254 | GF32.31-P-5105H | ||
| Model 214 | GF32.31-P-5105K | ||
| Model 118 as of model year 2023 Model 177 as of model year 2023 Model 247 as of model year 2023 |
GF32.31-P-5105L | ||
| Model 167 as of model year 2023 | GF32.31-P-5105M | ||
| Model 294 | GF32.31-P-5105N | ||
| Model 192 | GF32.31-P-5105R | ||
| Model 465 | GF32.31-P-5105T |