The switch centre in the centre console contains the pushbuttons for seat heating, roller sun blind, ASC/DSC, tyre pressure control system (RDC), space sound (RDC), and additionally on the convertible/roadster, pushbuttons for opening convertible top compartment cover and convertible top operation. The electronics for controlling the seat heating and roller sun blind is additionally integrated in the switch centre.
The switch centre has diagnostic capabilities. Communication takes place via the K-bus. Faults in the area of the seat heating and roller sun blind are stored in the fault code memory. In addition, the inputs and outputs of the systems can be read out or activated via the diagnosis function.
The switch centre contains the electronics for controlling and regulating the seat heating and roller sun blind. It also stores the switching status of the space sound switch.
The pushbuttons for ASC/DSC, RDC and convertible top operation have no connection to the electronic control unit of the switch centre.
In view of the various vehicle equipment, there is a large variety of variants for the centre console switch centre. The switch centre does not feature the electronic control on vehicles not equipped with seat heating, roller sun blind or space sound. In this case, the system does not have diagnostic capabilities.