2023 CITROEN DS4 engine

74
Dual-zone automatic air
conditioning
The air conditioning system operates when the
engine is running.
1.Automatic comfort programme.
2. Temperature adjustment on driver/
passenger side.
3. Automatic visibility programme.
4. Air conditioning On/Off.
5. Air distribution adjustment.
6. Air flow adjustment.
7. Air intake/Air recirculation.
8. "REST" function: ventilation with the
engine off.
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 cool the air more quickly, you can use
recirculation of the interior air for a short
time. Then return to the intake of exterior
a i r.
Switching off
F Press the A/C button again,
the button's indicator lamp
goes off.
Switching the system off could result in
discomfort (humidity, condensation).
Automatic operation
Automatic comfort programme
We recommend using 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.
This system is designed to operate effectively
in all seasons, with the windows closed. F

P
ress the AUTO button in
succession:
-

a f
irst indicator lamp comes
on; the "low" 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 "high" setting mode is
selected.
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75
In cold weather and when the engine
is cold, the air flow will gradually reach
its optimum level, taking account of the
weather and the desired comfort level so
as to avoid distributing too much 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 desired comfort. The system
corrects the difference in temperature
automatically and as quickly as possible.
Temperature adjustment on driver/
passenger side
The driver and front passenger can each set
the temperature to suit their requirements.
The value shown on the display is a level
of comfort, not a temperature in Celsius or
Fahrenheit.F

T
urn the dial to the left to lower
the value and to the right to
raise it. A setting around the value 21 provides
optimum comfort. However, depending on your
requirements, a setting between 18 and 24 is
normal.
It is also recommended to avoid a left /right
setting difference of more than 3.
Automatic visibility programme
For more information on Front
demist - defrost
, refer to the
corresponding section.
With Stop & Start, when demisting/
defrosting has been activated, STOP
mode is not available.
Manual control
If you wish, you can make a different choice
from that offered by the system by changing
a setting. The " AUTO" button indicator lamps
go off; the other functions will continue to be
managed automatically.
F

P
ressing the "AUTO" button
returns the system to full
automatic operation. 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 the dial to the left
until " LO" is displayed or
to the right until " HI" is
displayed.
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 in the " A/C"
button comes on.
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76
Adjusting the air distribution
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 directions to obtain
the desired air distribution.
Adjusting the air flow
F Turn this control to the left to decrease the air flow or to the
right to increase the air flow.
The air flow indicator lamps between the two
fans come on progressively according to the
value requested.
Air intake/Air recirculation
F Press this button to recirculate the interior air. The button's
indicator lamp comes on.
Air recirculation enables the passenger compartment
to be isolated from exterior odours and smoke.
F As soon as possible, press this button again to permit
the intake of outside air and
prevent the formation of
condensation. The button's
indicator lamp goes off.
Avoid prolonged operation in interior air
recirculation mode (risk of misting and
deterioration of air quality).
"REST" function: ventilation with the
engine off
Even with the engine is off, you can operate the
ventilation for a few minutes.
For example, if you leave the vehicle,
ventilation can be provided to the passengers
who stay inside without having to start the
engine.
This function is available after switching on the
ignition, as well as after stopping the engine.
The availability period of the function depends
on the state of charge of the battery.
You can activate the "REST" function as long
as the air conditioning control displays are on. When the ignition is switched on
-

T
he control displays 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
two dashes appearing in the
control displays and four air
flow level indicator lamps.
On stopping the engine
-
W
hile the control displays are still on: the
function is available.
- P ressing the REST
button
activates the ventilation for
a few minutes. Activation of
the function is confirmed by
two dashes appearing in the
control displays and four air
flow level indicator lamps.
Locking the vehicle has no effect on this
function.
-

T
he displays go off at the end of this period.
Pressing this button again before the end of
the period stops the ventilation completely: the
control displays go off and the function is no
longer available.
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Recommendations for ventilation and air conditioning
In order for these systems to be fully
effective, follow the operation and
maintenance guidelines below:
F
T
o ensure that the air is distributed
evenly, keep the external air intake
grilles at the base of the windscreen,
the nozzles, the vents, the air outlets
and the air extractor in the boot free
from obstructions.
F

D
o not cover the sunshine sensor,
located on the dashboard; this is used
for regulation of the automatic 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
o r d e r.
F

E
nsure that the passenger
compartment filter is in good condition
and replace the filter elements
periodically. We recommend the use of
a combined passenger compartment
filter. Thanks to its special active
additive, it helps both to purify the air
breathed by the occupants and to keep
the passenger compartment clean
(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 the dealer network
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.
To avoid the windows misting up and
deterioration in the quality of the air:
do not drive for too long with the ventilation
switched off.
Do not keep air recirculation set for an
extended period. If after an extended stop in sunshine, the
interior temperature is very high, first air
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 condensation created by the air
conditioning results in a discharge of
water under the vehicle which is per fectly
normal.
Stop & Star t
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.
For more information on Stop & Star t ,
refer to the corresponding section.
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79
Front demist – defrost
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 (control indicator lamp off).
F

S
witch on the air conditioning
by pressing the " A/C" button;
the indicator lamp in the button
comes on.
With automatic dual-zone air
conditioning
Automatic visibility programme
F Select this programme to demist or defrost the windscreen and
side windows as quickly as
possible.
With Stop & Start, when demisting/
defrosting has been activated, STOP
mode is not available.
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
indicator lamp in the button goes off and the
indicator lamp in the " AUTO" button comes on.
The system starts again with the values in
use before it was overridden by the visibility
programme.
F It is possible to stop the demisting/defrosting operation
before it is switched off
automatically by pressing the
button again. The indicator lamp
in the button goes out.
Rear screen demist –
defrost
Switching on
Demisting – defrosting of the rear screen can
only function when the engine is running.
Switching off
Demisting/defrosting switches off automatically
to prevent an excessive consumption of current.
F Press this button to demist /defrost the rear screen and
(depending on version) the door
mirrors. The indicator lamp in
the button comes on.
These markings on the control panel
indicate the control positions for
rapid demisting or defrosting of the
windscreen and side windows.
With Stop & Start, when the demisting/
defrosting, air conditioning and air flow
functions are activated, STOP mode is not
available. The control button is located on
the air conditioning system control
panel.
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83
Courtesy lamps
1.Front courtesy lamp
2. Front map reading lamps
3. Rear courtesy lamp
4. Rear map reading lamps
Front and rear courtesy lamps
In this position, the courtesy
lamp comes on gradually:
-

w

hen the vehicle is unlocked,
-

w

hen the key is removed from the ignition,
-
w

hen opening a door,
-

w

hen the remote control locking button is
activated, in order to locate your vehicle.
It switches off gradually:
-

w

hen the vehicle is locked,
-

w

hen the ignition is switched on,
-

3

0 seconds after the last door is closed. Permanently off.
Permanent lighting.
In "permanent lighting" mode, the lighting time varies
according to the circumstances:
-
w
hen the ignition is off, approximately ten minutes,
-

i
n energy saving mode, approximately thirty
seconds,
-
w

ith the engine running, unlimited.
When the courtesy lamp is in the
"permanent lighting" position, the rear
courtesy lamp also comes on, except if it
is in the "permanently off " position.
To switch off the rear courtesy lamp, put it
in the "permanently off " position.
Front and rear map reading
lamps
F With the ignition on, operate the corresponding switch.
Take care not to put anything in contact
with the courtesy lamps.
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87
Connect only one device at a time to
the socket (no extension or multi-way
connector).
Connect only devices with class II
insulation (shown on the device).
As a safety measure, when electrical
consumption is high and when required by
the vehicle's electrical system (particular
weather conditions, electrical overload...),
the power supply to the socket will be cut
off; the green warning lamp goes off.
F

l

ift the front armrest cover for access to its
compartment,
F

c
heck that the warning lamp is on green,
F

c
onnect your multimedia or other electrical
device (telephone charger, laptop computer,
CD-DVD player, baby food warmer, etc.).
This socket works with the engine running, as
well as in STOP mode with Stop & Start.
In the event of a fault with the socket, the green
warning lamp flashes.
Have it checked in the dealer network or by a
qualified workshop.
Storage drawers
Located under each front seat, except for the
driver's seat on versions with electric seats.
Opening
F Raise the front of the drawer and pull it open.
Do not place heavy objects in the drawer.
Removal
Avoid removing the drawer completely, as
refitting it is not easy.
F

O
pen the drawer fully.
F

P
ull the drawer upwards to disengage it.
Refitting
However, if it has been completely removed, to
refit it:
F
u
se the torch to illuminate the area under
the seat,
F

enga
ge the drawer in its runners,
F

l
ift the retaining tongues and slide the
drawer under these tongues,
F

a
t the end of its travel, press down on the
drawer to engage it.
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Storage boxStowing rings
There are four stowing rings in the boot for
securing luggage:
-

t
wo are located on the boot floor,
-

t
wo are located at the lower part of the
entrance.
Boot lighting
This comes on automatically when the boot is
opened and goes off automatically when the
boot is closed.
The lighting time varies according to the
circumstances:
-

w
hen the ignition is off, approximately
ten minutes,
-

i
n energy economy mode,
approximately thirty seconds,
-
w

ith the engine running, unlimited.
F
R
aise the boot carpet for access to the
storage box.
The latter has compartments for storage of a
box of spare bulbs, a first aid kit, etc.
It also contains vehicle tools, the temporary
puncture repair kit, etc.
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Ease of use and comfort