Steering Column: Description and Operation

Steering Column Operation












The adjustable steering column is similar to the E31 LSM system in that the mechanical linkages and adjustment ranges are the same. The steering column adjusting switch is mounted on the left side of the steering column and provides for four directions of column movement.

The motors for tilt and length also employ ripple counter modules for motor control and memory recall. The control electronics for the steering column are integrated into the seat module. The steering column switch inputs are processed by the seat module and the output signals are sent to the steering column ripple counter modules for motor activation.


Steering Column Motor Drives

Forward/Back (Telescope)







A flexible drive shaft operates a screw drive which causes a forward/back movement of the steering column.

Up/Down







A flexible drive shaft moves an off-center lever causing up/down steering column movement.