Steering column switch center

The steering column switching center (SZL) has a conventional structure. The steering column switching center is connected to the attachments by cables. There is no optical signal transfer as on e.g. the BMW 3 Series.

The steering column switching center has the following tasks:

• Measuring the steering angle and steering-angle speed
• Transferring signals from the control elements in the multifunction steering wheel across the buffer spring cassette
• Picking up signals from the steering column levers
• Providing output of data as CAN messages on the bus or transferring it via direct lines
• Forwarding signals, e.g. driver's airbag and horn

If the vehicle is equipped with optional extra 210 "Dynamic Stability Control", the steering column switching center is also connected to the chassis CAN (F-CAN).

On vehicles without DSC, the steering column switching center has no steering-angle sensor.