See also:

Deleting all stored programs
Press both outer memory buttons 1 for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

Current fuel consumption
Current fuel consumption Displays the current fuel consumption. You can check whether you are currently driving in an efficient and environmentally-friendly manner. ...

Text messages
Text messages at the upper edge of the Control Display explain the meaning of the displayed indicator and warning lamps. ...