See also:

Warning and display messages in the multifunction display
•► Activate ATTENTION ASSIST using the onboard computer Symbol 1 appears in the multifunction display. If ATTENTION ASSIST is active, you will be warned no sooner than 20 minutes after ...

Windows fogged up on the outside
Switch on the windshield wipers. Press the button repeatedly until the or symbol appears in the display. You should only select this setting until the windshield is clear again. ...

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs:  - ...