2014 Citroen DS4 engine

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

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

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

95
5. Air conditioning On / Off
F Press this button to switch off the air conditioning.
Switching the system off could result in
discomfort (humidity, condensation).
F

P

ress this button again to return to
automatic operation of the air conditioning.
The indicator lamp on the "A /C " button
comes on.
6. Air distribution adjustment
F Press one or more buttons to direct the air flow towards:
-

t
he windscreen and side
windows (demisting or
def r o st ing),
-

t
he outer and centre air
vents,
-

t
he footwells.
You can combine the three orientations to
obtain the desired air distribution.
7. Air flow adjustment
F Turn this control to the left to decrease the air flow or to the
right to increase the air flow.
8. Air intake / Air recirculation
F Press this button for recirculation of the interior air. The indicator
lamp in the button comes on.
The air flow indicator lamps, between the
two

fans, come on progressively in relation to
the value requested.
9. "REST" function: ventilation with the engine off
Even with the engine is off, you
can operate the ventilation for a
few
m

inutes.
Air recirculation enables the passenger
compartment to be isolated from exterior
odours and smoke.
F

A

s soon as possible, press this button
again to permit the intake of outside air and
prevent the formation of condensation. The
indicator lamp in the button goes off. For example, while you are away from the
vehicle, the passengers can still enjoy some air
circulation without having the engine running.
This function is available after switching on the
ignition, as well as after stopping the engine.
The period that the function is available
depends on the state of charge of the battery.
You can activate the "REST" function while the
air conditioning control screens are on.
Avoid prolonged operation in interior air
recirculation mode (risk of misting and
deterioration of air quality).
Comfort

Switching the system off
F Turn the air flow control to the left until all of the indicator
lamps go off.
This switch does not operate the air conditioning, only the air fan.
When the "REST" function is activated, you cannot modify the temperature, air flow
and distribution settings: these are controlled automatically according to the ambient
temperature.
This function is not available in the STOP mode of Stop & Start. Avoid prolonged operation in interior
air recirculation mode or driving for
long periods with the system off (risk of
misting and deterioration of air quality).
On switching on the engine
-
T
he control screens come on: the function
is available.
-

P

ressing the REST button activates the
ventilation for a few minutes. Activation of
the function is confirmed by the display of
two dashes in the control screens and four
air flow level indicator lamps.
-

T

he function can be deactivated and
reactivated if the control screens are on.
-

T

he screens go off at the end of this
period. On stopping the engine
-
W
hile the control screens remain on: the
function is available.
-

P

ressing the REST button activates the
ventilation for a few minutes. Activation of
the function is confirmed by the display of
two dashes in the control screens and four
air flow level indicator lamps.
L

ocking the vehicle has no effect on this
function.
-

T

he control screens go off at the end of this
period.
P

ressing again before the end of the period
interrupts off the ventilation definitively: the
control screens go off and the function is
no longer available. This action switches off the air conditioning and
the ventilation.
Temperature related comfort is no longer
assured but a slight flow of air, due to the
movement of the vehicle, can still be felt.
F

M

odify the settings (temperature, air flow
or air distribution) or press the "AUTO"
button to reactivate the system with the
values set before it was switched off.

Rear screen demist - defrost
The control button is located on the air conditioning system control panel.
Switching on
The rear screen demisting/defrosting can only
operate when the engine is running.
F
P
ress this button to demist /defrost the
rear screen and (depending on version)
the door mirrors. The indicator lamp
associated with the button comes on.
Switching off
The demisting/defrosting switches off
automatically to prevent an excessive
consumption of current.
F

I
t is possible to stop the demisting/
defrosting operation before it is switched
off automatically by pressing the button
again. The indicator lamp associated with
the button goes off. F
S witch off the demisting/defrosting
of the rear screen and door mirrors
as soon as appropriate, as lower
current consumption results in
reduced fuel consumption.

101
Heated seats control
With the engine running, the front seats can be
heated separately.
F
U
se the adjustment dial, placed on the side
of each front seat, to switch on and select
the level of heating required:
0 : O

ff.
1: L

ow.
2: M

edium.
3: H

igh.
Additional adjustments
Head restraint height and angle
F To raise a head restraint, pull it upwards.
F T o lower the head restraint, press the lug A
and the head restraint at the same time.
F

T
o adjust the angle of the head restraint, tilt
its lower part for wards or rear wards. The head restraint is fitted with a frame
with notches which prevents it from
lowering; this is a safety device in case
of impact.
The adjustment is correct when the
upper edge of the head restraint is
level with the top of the head.
Removing a head restraint
F To remove the head restraint, press the
lug A and pull the head restraint upwards.
F

T
o put the head restraint back in place,
engage the head restraint stems in the
openings keeping them in line with the seat
back and press the lug A at the same time.
Never drive with the head restraints
removed; they must be in place and
adjusted correctly.
Comfort

Manual lumbar adjustment
F Turn the knob to obtain the desired level of lumbar support.
Electric lumbar adjustment
F Press the front or rear of the control to obtain the desired lumbar support. This function provides a back massage; it only
operates when the engine is running.
F

P
ress the switch to activate the function.
The warning lamp on the switch comes on and
the massage function is activated for a period
of 60
minutes. During this time, massage is
per formed in 6 cycles of 10 minutes each cycle
(6
minutes of massage followed by 4 minutes
break).
After an hour, the function is automatically
deactivated. The warning lamp in the switch
goes off.
deactivation
You can deactivate the massage function at
any time by pressing the switch. The movement
in progress continues until the initial non-
massage position is reached.
Massage function