Open climate view in the centre display by pressing the symbol in the middle of the climate row.
The air distribution buttons in the climate view.
Air distribution - windscreen defroster vents
Air distribution - air vents in instrument panel and centre console
Air distribution - air vents in the floor
Press one or more of the air distribution buttons in order to open/close the corresponding air flow.
The air distribution is changed and the buttons illuminate/extinguish.