Convenience opening/closing via the air recirculation button
Convenience closing:
press the 
button until the side windows begin to close automatically. The initial position of the side windows is saved.
Convenience opening:
press the button until the side windows begin to open automatically. The side windows open automatically until they have reached their previously saved position.
Switching traffic information announcements on/off
Multimedia system:
Activate or deactivate Traffic announcements.