2016 Citroen DS4 air conditioning

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DS4_en_Chap03_confort_ed03-2015
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

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DS4_en_Chap03_confort_ed03-2015
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

DS4_en_Chap03_confort_ed03-2015
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.

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DS4_en_Chap03_confort_ed03-2015
Front demist - defrost
These markings on the control panel indicate the control positions for rapid demisting or
defrosting of the windscreen and side windows.
With manual air
conditioning
F Put the temperature, air flow and distribution controls to the dedicated
marked position.
F

P
ut the air intake control to the "Exterior air
intake" position
(

indicator lamp on the control off).
F

S
witch on the air conditioning by pressing
the "A /C " button; the warning lamp in the
button comes on.
With digital dual-zone air
conditioning
With Stop & Start, when the demisting,
air conditioning and air flow functions
are activated, STOP mode is not
available.
Automatic visibility programme
F Select this programme to demist or defrost the windscreen and side windows as
quickly as possible.
The system automatically manages the air
conditioning, air flow and air intake, and
provides optimum distribution towards the
windscreen and side windows.
F

T
o stop the programme, press either the
"visibility" button again or "AUTO" , the
warning lamp on the button goes off and
the warning lamp on the "AUTO" button
comes on.
The system starts again with the values in
use before it was overridden by the visibility
programme. With Stop & Start, when demisting has
been activated, the STOP mode is not
available.
Comfort

DS4_en_Chap03_confort_ed03-2015
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.

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Interior mood lightingThe dimmed passenger compartment lighting improves visibility in the vehicle when
the light is poor.
At night, the audio system and digital air
conditioning illumination, together with the
illumination of the central dashboard storage
box, comes on automatically when the
sidelamps are on.The interior mood lighting switches off
automatically when the sidelamps are
switched off.
It can be switched off manually by adjusting the
instrument panel lighting dimmer button to one
of the lowest settings.
On certain versions, three LEDs, located in the
rail linking the rear view mirror to the roof come
on as well.
Switching on
Switching off
Visibility

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Energy economy modeSystem which manages the period of use of certain functions to conserve a sufficient level of
charge in the battery.
After the engine has stopped, you can still use functions such as the audio equipment, windscreen
wipers, dipped beam headlamps, courtesy lamps, etc. for a maximum combined period of
thirty
m

inutes.
This period may be greatly reduced if
the battery is not fully charged.
A flat battery prevents the engine from
starting (refer to the corresponding
paragraph).
If the telephone is being used at the
same time on the navigation system,
it will be interrupted after 10 minutes.
Switching to economy mode
Once this period has elapsed, a message
appears in the screen indicating that the
vehicle has switched to economy mode and the
active functions are put on standby.
Exiting economy mode
These functions are reactivated automatically
the next time the vehicle is driven.
F

I
n order to resume the use of these
functions immediately, start the engine and
let it run for a few minutes.
The time available to you will then be double
the period for which the engine is left running.
However, this period will always be between
five and thirty minutes.
Load reduction modeSystem which manages the use of certain
functions according to the level of charge
remaining in the battery.
When the vehicle is being driven, the load
reduction function temporarily deactivates
certain functions, such as the air conditioning,
the heated rear screen...
The deactivated functions are reactivated
automatically as soon as conditions permit.
Practical information

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DS4_en_Chap10_verifications_ed03-2015
Checks
Air filter and passenger compartment filter
Oil filter
Unless other wise indicated, check these components in accordance with the manufacturer's service schedule and according to your engine.
Other wise, have them checked by a CITROËN dealer or a qualified workshop.Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.
Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.
The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specific 12 V lead-acid
battery with special technology and
specification. The involvement of
a CITROËN dealer or a qualified
workshop is essential when replacing
or disconnecting the battery.
12 V battery
When carrying out work on the battery, refer
to the "12 V battery" section for details of the
precautions to be taken before disconnecting
the battery and following its reconnection.
The battery does not require any maintenance.
However, check that the terminals are clean
and correctly tightened, particularly in summer
and winter.
Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often
if necessary
.
A clogged passenger compartment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
Checks