2012 Citroen C4 air conditioning

3
COMFORT
67





DUAL-ZONE DIGITAL AIR CONDITIONING

Automatic operation

We recommend the use of
one of the three AUTO modes
available: they provide opti-
mised regulation of the tem-
perature in the passenger
compartment according to the comfort
value that you have chosen.
These three modes automatically adjust
the air fl ow, according to the desired set-
ting, while also maintaining the desired
comfort value.

)

Press the "AU TO "
button repeatedly:


- a fi rst indicator lamp comes on; the
"light" setting mode is selected,

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

- a third indicator lamp comes on;
the "intense" mode setting is se-
lected.
The air conditioning system operates when the engine is running. When the engine is cold, the air
fl ow 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 in-
terior temperature is much colder
or warmer than the comfort val-
ue, 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.

1. Automatic comfort programme
This system is designed to operate
effectively in all seasons, with the win-
dows closed.

3
COMFORT
68

7. Air fl ow adjustment


)
Turn this control to the left
to decrease the air fl ow or
to the right to increase the
air fl ow.
The air fl ow indicator lamps, between
the two fans, come on progressively in
relation to the value requested. For maximum cooling or heating
of the passenger compartment,
it is possible to exceed the mini-
mum value 14 or the maximum
value 28.


)
Turn control 2
or 3
to the left
until "LO"
is displayed or
to the right until "HI"
is dis-
played.

See "Front demisting - defrosting".



4. Automatic visibility programme


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 func-
tions will still be controlled automati-
cally.


)
Pressing the "AUTO"
button returns
the system to completely automatic
operation.

5. Air conditioning On/Off


)
Press this button to switch
off the air conditioning.
Switching the system off could result in
discomfort (humidity, condensation).


)
Press this button again to return to
automatic operation of the air con-
ditioning. The indicator lamp on the
"A/C"
button comes on.


)
Press one or more but-
tons to direct the air fl ow
towards:
6. Air distribution adjustment


- the windscreen and side windows
(demisting or defrosting),

- the outer and centre air vents,

- the footwells.

You can combine the three orientations
to obtain the desired air distribution.
2. Driver's side adjustment
The driver and front pas-
senger can each adjust the
temperature to their require-
ments.


)
Turn 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, depend-
ing on your requirements, a setting be-
tween 18 and 24 is normal.
You are advised to avoid a left/right set-
ting difference of more than 3.
3. Passenger's side adjustment
The value indicated on the display cor-
responds to a level of comfort and not
to a temperature in degrees Celsius or
Fahrenheit.






With Stop & Start, when dem-
isting has been activated, the
STOP mode is not available.
8. Air intake/Air recirculation


)
Press this button for recir-
culation of the interior air.
The indicator lamp in the
button comes on.
Air recirculation enables the passenger
compartment to be isolated from exte-
rior odours and smoke.


)
As soon as possible, press this but-
ton again to permit the intake of out-
side air and prevent the formation of
condensation. The indicator lamp in
the button goes off.

3
COMFORT
69

Switching the system off

Avoid prolonged operation in in-
terior air recirculation mode or
driving for long periods with the
system off (risk of condensation
and deterioration of air quality).
9. "REST" function: ventilation with
the engine off

On switching on the engine



- The control screens come on: the
function is available.

- Pressing the REST
button activates
the ventilation for a few minutes.
Activation of the function is con-
fi rmed by the display of two dashes
in the control screens and four air
fl ow level indicator lamps.

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

- The screens go off at the end of this
period.
On stopping the engine



- While the control screens remain
on: the function is available.

- Pressing the REST
button activates
the ventilation for a few minutes.
Activation of the function is con-
fi rmed by the display of two dashes
in the control screens and four air
fl ow level indicator lamps.
Locking the vehicle has no effect on
this function.

- The control screens go off at the
end of this period.
Pressing again before the end of
the period interrupts off the ventila-
tion defi nitively: the control screens
go off and the function is no longer
available.

)
Turn the air fl ow control to
the left until all of the indi-
cator lamps go off.
This action switches off the air condi-
tioning and the ventilation.
Temperature related comfort is no longer
assured but a slight fl ow of air, due to
the movement of the vehicle, can still
be felt.


)
Modify the settings (temperature,
air fl ow or air distribution) or press
the "AUTO"
button to reactivate the
system with the values set before it
was switched off.
This switch does not operate the
air conditioning, only the air fan.
When the "REST" function is ac-
tivated, you cannot modify the
temperature, air fl ow and distri-
bution settings: these are con-
trolled automatically according
to the ambient temperature.
This function is not available in
the STOP mode of Stop & Start.
Even with the engine is off,
you can operate the ventila-
tion for a few minutes.
For example, while you are
away from the vehicle, the
passengers can still enjoy some air cir-
culation without having the engine run-
ning.
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" func-
tion while the air conditioning control
screens are on.

3
COMFORT
70
FRONT DEMIST - DEFROST


These markings on the control
panel indicate the control po-
sitions for rapid demisting or
defrosting of the windscreen
and side windows.


With manual air conditioning



)
Put the temperature, air fl ow and
distribution controls to the dedicated
marked position.

)
Put the air intake control to the
"Exterior air intake" position
(indicator lamp on the control off).

)
Switch on the air conditioning by
pressing the "A/C"
button; the warn-
ing lamp in the button comes on.










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.


)
Press this button to demist/defrost
the rear screen and (depending on
version) the door mirrors. The indi-
cator lamp associated with the but-
ton comes on.



Switching off

The demisting/defrosting switches off
automatically to prevent an excessive
consumption of current.


)
It is possible to stop the demisting/de-
frosting operation before it is switched
off automatically by pressing the button
again. The indicator lamp associated
with the button goes off.


)
Switch off the demisting/de-
frosting of the rear screen
and door mirrors as soon as
appropriate, as lower current
consumption results in re-
duced fuel consumption.



With digital dual-zone air
conditioning

Automatic visibility programme


)
Select this programme to demist
or defrost the windscreen and side
windows as quickly as possible.
The system automatically manages
the air conditioning, air fl ow and air
intake, and provides optimum distribu-
tion towards the windscreen and side
windows.


)
To stop the programme, press ei-
ther 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 dem-
isting has been activated, the
STOP mode is not available.
With Stop & Start, when the
demisting, air conditioning and
air fl ow functions are activated,
STOP mode is not available.

5
VISIBILITY
100


Model without AUTO lighting



Model with AUTO lighting

A.
Main lighting mode selection ring:
turn it to position the symbol re-
quired facing the mark.

Manual controls

The lighting is controlled directly by the
driver by means of the ring A
and the
stalk B
.
Lamps off.





Automatic illumination of head-
lamps.

B.
Stalk for switching headlamps: pull
the stalk towards you to switch the
lighting between dipped and main
beam headlamps.
In the lamps off and sidelamps modes, the
driver can switch on the main beam head-
lamps temporarily ("headlamp fl ash") by
maintaining a pull on the stalk. Sidelamps.
Dipped headlamps or main
beam headlamps.

Displays

Illumination of the corresponding indica-
tor lamp in the instrument panel confi rms
that the lighting selected is on.







Daytime running lamps

Daytime lighting, compulsory in certain
countries, which comes on automati-
cally when the engine is started making
the vehicle more visible to other users.

This function is assured:


- in countries where it is imposed by
regulations,
by illumination of the dipped beam
headlamps with the sidelamps and
number plate lamps; this function
cannot be deactivated.

- for other countries where it is pro-
vided,
by the use of dedicated lamps; this
function can be activated or deac-
tivated via the vehicle confi guration
menu.


The instruments and controls (instru-
ment panel, multifunction screen, air
conditioning control panel, ...) are not
illuminated, except in night mode with
manual or automatic illumination of
headlamps.

6
FITTINGS
11 7
LARGE MULTIFUNCTIONAL
STORAGE UNIT

This storage unit is closed by a sliding
shutter.
It contains:


- the USB port and 12 V/auxiliary
sockets 1
,

- a retractable support 2
to receive
your mobile phone or portable de-
vice,

- a space ventilated by a closeable
nozzle 3
, to keep food and drinks
fresh if the air conditioning is oper-
ating.








FRONT ARMREST

Comfort and storage system for the
driver and front passenger.
The height and length of the armrest
cover can be adjusted.

Height adjustment



)
Raise the cover to the required po-
sition (low, intermediate or high).

)
If you raise the cover slightly beyond
the high position, guide it when low-
ering it to the low position.



Longitudinal adjustment



)
Slide the cover fully forwards or
rearwards.



Storage

The storage space in the armrest can
hold up to 6 CDs.
This storage space may be fi tted with a
230 V/50 Hz socket.


)
Raise the lever.

)
Raise the cover fully.
It is illuminated only when the
sliding shutter is fully open.
The sliding shutter can be partly
closed up to the level of the re-
tractable support, so as to keep
the storage unit cool.

10
CHECKS
186





























CHECKS

Unless otherwise indicated, check
these components in accordance with
the servicing booklet and according to
your engine.
Otherwise, have them checked by a
CITROËN dealer or a qualifi ed workshop.


Battery

The battery does not require
any maintenance.
However, check that the ter-
minals are clean and correctly
tightened, particularly in sum-
mer and winter.
When carrying out work on the battery,
refer to the "Practical information" sec-
tion for details of the precautions to be
taken before disconnecting the battery
and following its reconnection.


Air filter and passenger compartment filter

Refer to the servicing booklet
for details of the replacement
intervals for these compo-
nents.

Oil filter

Replace the oil fi lter each time
the engine oil is changed.
Refer to the servicing booklet
for details of the replacement
interval for this component.










Particle emission filter (Diesel)

According to your version of instrument
panel, the start of saturation of the par-
ticle emissions fi lter is indicated by:


- fi xed illumination of the par-
ticle emissions fi lter warning
lamp, accompanied by an au-
dible signal and a message
that there is a risk of blockage
of the particle emissions fi lter,






The presence of this label, in particular
with the Stop & Start system, indicates
the use of a specifi c 12 V lead-acid bat-
tery with special technology and speci-
fi cation, for which the involvement of a
CITROËN dealer or a qualifi ed work-
shop is required when replacing or dis-
connecting the battery.
Failure to observe this recommendation
may shorten the life of the battery.

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
(refer to
the "Engines" section).
A clogged passenger compartment fi l-
ter may have an adverse effect on the
performance of the air conditioning sys-
tem and generate undesirable odours.
As soon as the traffi c conditions per-
mit, regenerate the fi lter by driving at a
speed of at least 40 mph (60 km/h) until
the warning lamp goes off.
If the warning lamp stays on, refer to
the "Additive level" section.
On a new vehicle, the fi rst opera-
tions of regeneration of the particle
emissions fi lter may be accom-
panied by the smell of "burning",
which is perfectly normal.
Following prolonged operation
of the vehicle at very low speed
or at idle, you may, in excep-
tional circumstances, notice the
emission of water vapour at the
exhaust on acceleration. This
does not affect the behaviour of
the vehicle or the environment. or

-
temporary illumination of
the service warning lamp,
accompanied by an audible
signal and a message that
there is a risk of blockage of
the particle emissions fi lter.

11
PRACTICAL INFORMATION
209








LOAD REDUCTION MODE

System which manages the use of cer-
tain functions according to the level of
charge remaining in the battery.

When the vehicle is being driven, the
load reduction function temporarily deac-
tivates certain functions, such as the air
conditioning, the heated rear screen...
The deactivated functions are reactivat-
ed automatically as soon as conditions
permit.








ENERGY ECONOMY MODE

System which manages the period of
use of certain functions to conserve a
suffi cient 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
minutes.

Switching to economy mode

Once this period has elapsed, a message
appears in the screen indicating that the ve-
hicle has switched to economy mode and
the active functions are put on standby.
If the telephone is being used at
the same time on the navigation
system, it will be interrupted after
10 minutes.
A fl at battery prevents the engine
from starting (refer to the corre-
sponding paragraph).


Exiting economy mode

These functions are reactivated auto-
matically the next time the vehicle is
driven.


)
In 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 fi ve and thirty minutes.

This period may be greatly re-
duced if the battery is not fully
charged.








CHANGING A WIPER BLADE

Before removing a front wiper
blade


)
Within one minute after switching off
the ignition, operate the wiper stalk
to position the wiper blades verti-
cally on the windscreen.



Removing



)
Raise the corresponding wiper arm.

)
Unclip the wiper blade and remove it.



Fitting



)
Put the corresponding new wiper
blade in place and clip it.

)
Fold down the wiper arm carefully.



After fitting a front wiper blade



)
Switch on the ignition.

)
Operate the wiper stalk again to
park the wiper blades.