CITROEN C4 Owner's Handbook Manual page 66

4. Air intake / Air recirculation
The intake of exterior air prevents the
formation of mist on the windscreen
and side windows.
The recirculation of interior air isolates
the passenger compartment from exte-
rior odours and smoke.
3
This function allows hot or cold
air to be delivered selectively
and more quickly.
Return to exterior air intake as soon as
possible to prevent deterioration of the
the air quality and the formation of mist.
 Press the button to recir-
culate the interior air. The
indicator lamp comes on
to confi rm this.
 Press the button again to permit the
intake of exterior air. The indicator
lamp goes off to confi rm this.
64
C O M F O R T
5. Air conditioning On / Off
The air conditioning is de-
signed to operate effectively
in all seasons, with the win-
dows closed.
It enables you to:
- lower the temperature, in summer,
- increase the effectiveness of the
demisting in winter, above 3 °C.
Switching on
 Press the "A/C" button, the button's
indicator lamp comes on.
The air conditioning does not
operate when the air fl ow adjust-
ment control 2 is in position " 0 ".
To obtain cooled air more quick-
ly, you can use recirculation of
interior air for a few moments.
Then return to fresh air intake.
Switching off
 Press the "A/C" button again, the
button's indicator lamp goes off.
Switching off may affect comfort levels
(humidity, condensation).