2007.5 Citroen C4 PICASSO Owner's Manual

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2 - Adjustment of temperature
The system can regulate temperature on an indepen-
dent basis for the left hand side and right hand side
as well as for the rear of the passenger compartment.
Front and rear passengers can thus adjust their own
temperatures.
To display the desired temperature, press button :
- – to decrease the temperature,
- + to increase the temperature.
An adjustment around 21 will provide an agreeable
temperature level. However, depending on your prefe-
rence, anything between 18 and 24 is quite normal.
For optimum comfort, it is recommended to avoid an
adjustment difference greater than 3 between right
and left.
Note : Actual temperatures experienced in the passenger
compartment are dependent on external factors and f or
this reason might not be identical to those display ed.
On entering the vehicle, the inside temperature may
be much colder (or hotter) than would be comfortable.
It serves no purpose to alter the temperature displayed
in an attempt to attain your preference more rapidly.
The system automatically does all in its power to make
up the difference in temperature as soon as possible.
A U T O M AT I C A I R C O N D I T I O N I N G
3 - Adjustment of the air blower speed
The air blower operates only when the engine is run ning
(except when the REST function is activated).
To adjust the flow of air, press on the button :
to increase the air flow
to decrease the air flow (this button also has
the REST function)
The level of air flow is indicated on the display by the
progressive filling of the ventilator blades.
Note : If you place the air blower on position 0, the
system is deactivated. The air blower display will be
empty, with the indication OFF.
Function for retaining ventilation with the
engine switched off
The REST function is available when you switch
on the ignition and when you stop the engine.
This function allows you to retain ventilation in the
passenger compartment for a few minutes, even with
the engine stopped.
When you leave the vehicle, any passengers present
can still have the benefit of air circulation, even though
the engine is not running.

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A U T O M AT I C A I R C O N D I T I O N I N G
(Function for retaining ventilation with the engine
switched off : REST function, continued…)
Engine stopped, ignition switched on :
- The displays will light up, with the air blower shown
empty as long as the function is available.
- A press on the REST button activates the function for a timing of just a few minutes. Two blades of the
blower will fill to signify that the function is active.
- It can be deactivated and reactivated during the t iming.
- At the end of the timing, the display will go off.
On stopping the engine :
- The displays remain lit up, the blower is shown em pty
and the function can be activated for 30 seconds.
- A press on the REST button during the 30 seconds activates the function for a timing of several minu tes.
The duration and availability of the function are v ariable
according to the state of charge of the battery (a protec-
tion to guarantee engine starting). Two blower blad es fill
up to signify that the function is active. It remai ns active,
even after the doors have been locked, until the en d of
the timing.
- A further press before the end of the timing definitively stops the function.
Note : This button does not activate the air conditioning,
only the air blowers. In the REST function, the air flow and
distribution are controlled automatically and you c annot
modify them.
4 - Adjustment of the air distribution
- Press on button 4 so that the air flows scroll succes-
sively on the display. 5 - Air recirculation
This button activates the recirculation of air within the
passenger compartment and also has an automatic
function.
The air distribution you have chosen is con-
firmed by the lighting of the corresponding
warning lamps in the display.
There are 7 possible adjustments. Entry of air in automatic mode
(activated
by default, in automatic comfort regulation)
Automatic mode makes use of an air quality sensor.
This analyses the air and isolates the passenger com-
partment from the exterior as soon as it detects the
presence of pollutants. Then it automatically activates
recirculation of cabin air.
1
Closing of the air inlet
- Press on button 5 to close off the entry of
air from outside.
2
Whilst retaining the other adjustments, this position
enables the driver at any time to exclude any disa-
greeable odours or fumes coming from outside the
vehicle.
It should be cancelled as soon as possible to permit
renewal of cabin air and to prevent misting.
- Press once on button
5 to return to the initial status
(entry of air in automatic mode).
Note : The air recirculation can also be accessed by
means of a press on the control located low down to
one side of the steering wheel (see « Fixed centred
controls steering wheel »). Entry of air (manual mode)
- Press on button
5 to activate entry of air from the
outside. The warning lamp goes out.
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A U T O M AT I C A I R C O N D I T I O N I N G
6 - Adjustment mode for the rear passengers 8 - Deicing /
demisting of the rear screen
This can only operate when the engine is running.
- Press on button 8 to activate/deactivate the electric
deicing of the rear screen and, according to version,
of the exterior rear view mirrors. The warning lamp
lights up and the symbol appears on the display.
It switches off automatically to prevent excessive con-
sumption of power
9 - Rapid deicing / demisting of the
front and rear windows - Press on button 9. The warning lamp lights up.
This button decides whether or not the rear
passengers may use their adjustment controls.
There are three possible statuses for this button : Locking of the rear passenger
controls
The driver imposes his adjustment on
the rear passengers.
Authorisation of the rear passenger
controls
The rear passengers can use their
adjustment controls at their convenience.
Closing of the air flow for the rear
passengers
The supply of air is cut off.
7 - Panel display mode : black panel function This function turns the displays and panel
backlighting on or off.
- Function activated, a press on any button will light up the screen temporarily.
- A press on button 7 deactivates the function, lighting
of buttons and screen is again permanent.
Note : This function optimises notably the visual com-
fort for driving at night. This function gives a rapid deicing / demisting
of the vehicle simultaneously with :
- front deicing at optimum temperature,
- optimum air flow,
- recirculation prohibition, - deicing of the rear view mirrors and heated rear
screen,
- air conditioning, if necessary.
Press again on button 9 or on « AUTO » to stop the
function. Deicing of the rear view mirrors and heated
rear screen remains activated.
10 - Air conditioning
- Press on button 10 to activate the air conditioning.
The A/C warning lamp lights up.
With additional air conditioning, in cold weather you
are advised to close the supply of air to the rear pas-
sengers (no hot air distribution possible via these air
vents).

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B. PASSENGER CONTROL PANELS
1. Front passenger
The front passenger can adjust his/her temperature
control independently at any time by pressing buttons

+ and -.
The front passenger controls the adjustment of
his/her own temperature.
The temperature for the passenger is indexed
on that for the driver. 2. Rear passengers (right/left)
By default, in AUTO position, the ad-
justment of the air flow is aligned on
the front ventilation.
- Rotate the button to decrease or in- crease the air flow.
Note : you can adjust the air flow only
if the driver enables you to (see button
6 of the driver’s control panel).
A U T O M AT I C A I R C O N D I T I O N I N G

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2
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AUTOMATIC AIR CONDITIONING -
ADDITIONAL AIR CONDITIONING
C. REAR PASSENGER CONTROL PANELS
(RIGHT / LEFT)
1. Adjustment of temperature
The rear passengers can adjust their temperature controls independently
via buttons + and -.
Note : Their preference cannot be greater than that of the driver by more
than 2. The reaching of this maximum preference is confirmed by the flash -
ing of its display.
2. Adjustment of air blower speed
The air blower operates only when the engine is running.
To adjust the flow of air, press on button :
to increase the air flow
to decrease the air flow
The level of air flow is indicated on the display by the progressive fill ing of
the ventilator blades.
By decreasing the flow to zero, you deactivate the air conditioning system
(OFF).
Note : you can adjust the temperature and the air flow only if the driver enables
you to (see button 6 of the driver’s control panel).
This warning lamp signifies that the passenger controls are
locked , you can adjust neither the temperature nor the air flow,
which remain aligned on the preferences of the driver.
This warning lamp indicates that the supply of air is cut off.
Additional air conditioning allows
you to optimise comfort levels in
warm weather conditions. It pro-
duces additional fresh air which is
supplied using the rear air vents.
The supply of warm air via the rear
air vents is not possible using this
system.
This position is recommended in cold weather conditions, as the air vents
do not supply warm air.

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Head restraint
To raise it, pull it upwards. To lower it, press on the control as
well as on the head restraint. The adjustment is correct when
the top of the head restraint is level with the top of t he head. It
can also be adjusted for tilt.
To remove it, press on the unlocking button and pull it up -
wards.
To adjust the head restraint fore/aft, move the base of the head
restraint to obtain the position desired.
Note : Never drive without the head restraints fitted.
Backrest angle
Action the control and adjust the angle of the backrest.
It is possible to incline the backrest 45° rearward s by tilting it until
it locks ; to unlock it, lift the control.
Driver’s seat height adjustment
Raise or lower the the control the number of times necessary to
obtain the position desired.
Lumbar support
Rotate the control until you attain the position desired.
Longitudinal adjustment
Raise the control bar, then slide the seat to the p osition desired.
Armrest
To adjust the position of the armrest, pull it up and the
n fully
down, and then raise it to the desired position.
F R O N T S E AT S - M A N U A L A D J U S T M E N T S

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Heated seats
The front seats can be heated
independently. Use the controls
on the inner sides of the seats
and choose one of the three heat
intensities below
0 : Stop.
1 : Slight heat.
2 : Medum heat.
3 : Strong heat.
The seat temperature will adjust
automatically.
Note : the heated seats only func-
tion when the engine is running.
Note : The seats can also be adjusted on a temporary basis :
- on opening one of the front doors.
- after switching off the ignition. Electric adjustments :

Adjustment of seat height
and angle, longitudinal
adjustment
 Adjustment of backrest
angle and lumbar support

Raise or lower the front of control 1 to raise or lower the front of
the seat base (on driver’s seat).
Raise or lower the rear of control 1 to raise or lower the seat.
Action control 1 forwards or rearwards to slide the seat fore /
aft.
Push the top of control 2 forwards or rearwards to adjust the
backrest angle.
Raise or lower control 2 to increase or decrease the lumbar
support.
F R O N T S E AT S - E l e c t r i c a d j u s t m e n t s

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To recall a memorised driving
position
Vehicle stationary, ignition
switched on or engine running
- Press briefly on button1 or 2 to
recall the corresponding pre-set
position.
Note : after five consecutive re -
calls of a pre-set position, the
function will be deactivated until
the engine is started.
Vehicle in motion
- Keep button 1 or 2 pressed to
recall the corresponding pre-set
position.
Memorisation of driving
positions
You can pre-set two driving posi
-
tions via the buttons located on
the side of the seat.
Memorising a driving
position
To pre-set a driving position :
- With the ignition on, adjust your seat and your rear view mirrors.
- Press on button M then imme-
diately on button 1 «first driving
position » or button 2 «second
driving position ».
The memorisation will be con -
firmed by a sound signal. Memo -
risation of a new position cancels
the previous one.
Do not attempt to pre-set a driving position while the vehicle is moving.
D R I V E R ’ S S E AT