LWR Components

LWR Components

Control Electronics

LWR Control Module - E38 & E39 Vehicles:






The LWR control module is located in the electronics carrier forward of the glovebox. The control module connects to a single, 26 pin, yellow harness connector. The control module has diagnostic capabilities and communicates with the DIS/MoDiC via the K bus - IKE gateway to the D bus.

Level Sensors
LWR monitors two hall effect level sensors to determine vehicle load angle. The sensors are mounted to a fixed point on the suspension carriers of the front and rear axles.




A lever is connected to the moving suspension member which changes the sensors output linear voltage signal as the suspension moves up and down.


NOTE: E39 sport wagon vehicles with EHC have a dual output sensor at the right rear location. This sensor shares the same housing as the EHC systems right rear level sensor


Headlight Adjustment Stepper Motors




One stepper motor is located inside each headlight assembly.

The 4 wire stepper motors are controlled by the LWR control electronics to change the vertical headlight position.