Controller

The controller serves as the central control element.

Brief description of components

Controller

• The controller is located on the front end of the armrest between the driver and front passenger seats. It is connected by means of a ribbon cable to the centre console switch centre (BZM). From a functional point of view, the BZM has nothing to do with the controller. The bus leads from the K-CAN SYSTEM, positive and earth supply are only looped through the BZM. 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 for the user. Inside the controller there is a DC motor which is controlled by pulse-width modulation (PWM) signals.
  

Main functions

The controller and the Control Display can be used to operate the following functions/display the following information:

• Help
  
• Entertainment
  
• Settings
  
• Air conditioner
  
• BMW Assist
  
• Communication
  
• On-board data
  
• Navigation
  

Depending on the menu item, the tactile feedback varies in strength. For example, between lists, function blocks or screen areas and limit stops.