2014 Citroen DS4 Owner's Manual

Ventilation
Air intake
The air circulating in the passenger compartment
is filtered and originates either from the outside via
the grille located at the base of the windscreen or
from the inside in air recirculation mode.
Air treatment
The incoming air follows various routes
depending on the controls selected by the
driver:
-
d
irect arrival in the passenger
compartment (air intake),
-

p
assage through a heating circuit (heating),
-

p
assage through a cooling circuit (air
conditioning).
Control panel
The controls of this system are grouped
together on control panel A on the centre
console.
Air distribution
1. Windscreen demisting-defrosting vents.
2. F ront side window demisting-defrosting
vents.
3.
S

ide adjustable air vents. 4. C
entral adjustable air vents.
5. A ir outlets to the front footwells.
6.
A

ir nozzles to the front footwells.
7.
A

ir outlets to the rear footwells.

89
Recommendations for ventilation and air conditioning
If after an extended stop in sunshine,
the interior temperature is very
high, first ventilate the passenger
compartment for a few moments.
Put the air flow control at a setting high
enough to quickly change the air in the
passenger compartment.
The air conditioning system does not
contain chlorine and does not present
any danger to the ozone layer.
In order for these systems to be fully effective, follow the operation and maintenance
guidelines below:
F

T

o obtain an even air distribution, take care not to obstruct the exterior air intake grilles
located at the base of the windscreen, the nozzles, the vents and the air outlets, as well
as the air extractor located in the boot.
F

D

o not cover the sunshine sensor, located on the dashboard; this is used for regulation
of the air conditioning system.
F

O

perate the air conditioning system for at least 5 to 10 minutes, once or twice a month
to keep it in per fect working order.
F

E

nsure that the passenger compartment filter is in good condition and have the filter
elements replaced regularly.
W

e recommend the use of a combined passenger compartment filter. Thanks to its
special active additive, it contributes to the purification of the air breathed by the
occupants and the cleanliness of the passenger compartment (reduction of allergic
symptoms, bad odours and greasy deposits).
F

T

o ensure correct operation of the air conditioning system, you are also advised to have
it checked regularly as recommended in the maintenance and warranty guide.
F

I

f the system does not produce cold air, switch it off and contact a CITROËN dealer or
a qualified workshop.
When towing the maximum load on a steep gradient in high temperatures, switching off the
air conditioning increases the available engine power and so improves the towing ability. The condensation created by the air
conditioning results in a discharge
of water under the vehicle which is
per fectly normal.
Stop & Start
The heating and air conditioning systems only work when the engine is running. To maintain
a comfortable temperature in the passenger compartment, you can temporarily deactivate
the Stop & Start system (see the corresponding section).
Comfort

Recommended interior settings
I require...Heating or Manual air conditioning
Air distribution Air flowRecirculation of
interior air / Intake of exterior air Temperature
Manual AC
HOT
COL
d
d
E

MISTING
dE

FROSTING
di

gital air conditioning: use the automatic mode in preference by pressing the "AUTO" button.

91
Manual air conditioning
The air conditioning system operates only with the engine running.
1. Temperature adjustment
F Turn the dial to select a position between blue (cold)
and red (hot) so as to adjust
the temperature to your
requirements.
2. Air flow adjustment
This dial is used to increase or
decrease the speed of the air
booster fan.
3. Air distribution adjustment
This dial is used to arrange the distribution of
air in the passenger compartment by combining
several air outlets.
F

I

f you place the air flow control
in position 0 , the system is
deactivated. However, a slight flow
of air, due to the movement of the
vehicle, can still be felt.
F

T

urn the dial from position 1 to position 5 to
obtain a comfortable air flow. Windscreen and side windows.
Windscreen, side windows and
footwells.
Footwells.
Central and side vents.
The air distribution can be
adapted by placing the dial in an
intermediate position.
Avoid driving too long with the
ventilation off (risk of misting and
deterioration of air quality).
Comfort

4. Air intake / Air recirculation
The intake of exterior air prevents the formation
of mist on the windscreen and side windows.F

P
ress the button to recirculate
the interior air. The indicator
lamp comes on to confirm this.
This function allows hot or cold air to be
delivered selectively and more quickly.
5. Air conditioning On/Off
The air conditioning is designed to
operate effectively in all seasons,
with the windows closed.
Switching on
F Press the "A /C "
button, the button's
indicator lamp comes on.
The air conditioning does not operate
when the air flow adjustment control 2
is in position " 0".
To obtain cooled air more quickly, you
can use recirculation of interior air for
a few moments. Then return to fresh
air intake.
The recirculation of interior air isolates the
passenger compartment from exterior odours
and smoke.
Return to exterior air intake as soon as possible
to prevent deterioration of the the air quality
and the formation of mist.
F

P

ress the button again to permit the intake
of exterior air. The indicator lamp goes off
to confirm this. It enables you to:
-

l

ower the temperature, in summer,
-

i

ncrease the effectiveness of the demisting
in winter, above 3 °C.
Switching off
F Press the "A /C " button again, the button's
indicator lamp goes off.
Switching off may affect comfort levels
(humidity, condensation).

93
Dual-zone digital air conditioningThe air conditioning system operates when the engine is running.
Automatic operation
1. Automatic comfort programme
We recommend the use of one of
the three AUTO modes available:
they provide optimised regulation of
the temperature in the passenger
compartment according to the comfort value
that you have chosen.
These three modes automatically adjust the
air flow, according to the desired setting, while
also maintaining the desired comfort value. F
P ress the "AUTO" button repeatedly:
-

a f
irst indicator lamp comes on; the
"light" setting mode is selected,
-

a s
econd indicator lamp comes on; the
"medium" setting mode is selected,
-

a t
hird indicator lamp comes on; the
"intense" mode setting is selected. When the engine is cold, the air
flow will reach its optimum level
progressively, taking account of the
weather and the desired comfort level
so as to avoid too great a distribution
of cold air.
On entering the vehicle, if the interior
temperature is much colder or warmer
than the comfort value, there is no
need to change the value displayed in
order to obtain the comfort required.
The system corrects the difference
in temperature automatically and as
quickly as possible.
This system is designed to operate effectively
in all seasons, with the windows closed.
Comfort

2. driver's side adjustment 4. A utomatic visibility
programme
For maximum cooling or heating of the
passenger compartment, it is possible
to exceed the minimum value 14 or the
maximum value 28.
F

T
urn control 2 or 3 to the left
until
"LO" is displayed or to
the right until "HI" is displayed.
See "Front demisting - defrosting".
3. Passenger's side adjustment
The driver and front passenger can
each adjust the temperature to their
requirements.
The value indicated on the display
corresponds to a level of comfort and not to a
temperature in degrees Celsius or Fahrenheit.
F

T

urn control 2 or 3 to the left or to the right
respectively to decrease or increase this
value.
A setting around the value 21 provides
optimum comfort. However, depending on your
requirements, a setting between 18 and 24 is
normal.
You are advised to avoid a left / right setting
difference of more than 3.
Manual operation
If you wish, you can make a different choice
from that offered by the system by changing
a setting. The the "AUTO" indicator lamps go
off; the other functions will still be controlled
automatically.
F

P
ressing the "AUTO" button returns the
system to completely automatic operation.
With Stop & Start, when demisting has
been activated, the STOP mode is not
available.