Level Sensor, Basic Function - GF32.31-P-2001A

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 detect the current vehicle level. This information is required for controlling the automatic headlamp range control (HRA), among other things.

Function 

The level sensors generate voltage signals which change in proportion to the vehicle level. The signals from the level sensor are used to calculate the vehicle level and therefore also to calculate the instantaneous damper stage (vehicles with adjustable damping or with air suspension).

In vehicles with adjustable damping or air suspension, level sensors are installed on all wheel suspensions.

On vehicles with LED headlamps and without adjustable damping or air suspension, level sensors are installed at the front and rear on one side. Depending on the vehicle involved, this can be the left or the right side.

Level sensors are installed on the wheel suspensions of the rear axle in vehicles with rear axle level control system.

Vehicle and equipment	Left front level sensor	Right front level sensor	Left rear level sensor	Right rear level sensor	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	-	x	-	x	-
air suspension
Vehicle with air suspension	x	x	x	x	-
Model 223
Vehicle with LED headlamps	x	x	x	x	-
Model 243
Vehicle with LED headlamps without adjustable damping	-	-	-	x	-
Vehicle with adjustable damping	x	x	x	x	-
Model 293
Vehicle with LED headlamps and rear axle level control system (series)	x	-	x	x	-
Model 297
-	x	x	x	x	-

	Component descriptions
	Level sensor, component description	Model 223	GF32.31-P-5105A