Rear controller

The rear controller serves as a central control element.

Brief description of components

Rear controller

• The rear controller is located at the front end of the centre armrest. It is connected by means of a ribbon cable to the centre console switch centre control unit (BZMF). From a functional point of view, the BZMF has nothing to do with the controller. The bus leads from the K-CAN SYSTEM, positive and earth supply are only looped through the BZMF. The positive and earth connections to the controller are split between three separate leads in order to keep the continuous current load at the connector within the permissible limits.
  
• Operation is by means of a rotary push button, which can also be shifted from a resting position in 8 directions.
  
• Variable tactile feedback for Controller rotation When the Controller is rotated for the purposes of selection functions, it provides tactile (i.e. tangible) feedback. Inside the controller there is a DC motor which is controlled by pulse-width modulation (PWM) signals.
  

Main functions

The rear controller and rear interior display can be used to operate the following functions/display the following information:

• Radio
  
• The drive installed in the audio system controller (CC, CD, MD)
  
• CD changer
  
• Tone settings for vehicle loudspeakers and headphones
  
• TV settings
  
• DVD changer
  

The strength of the tactile feedback differs according to the menu option. For example, between lists, function blocks or screen areas and end stops.