2008.5 Citroen C4 PICASSO sensor

4
F A M I L I A R I S A T I O N

Panoramic glass roof

 82

Xenon directional head-
lamps
Whether on dipped beams
or main beams, this function
allows your headlamps to fol-
low the direction of the road
ahead.

 89
Opening rear screen

 81

Pneumatic rear suspension
This enhances driving comfort and
maintains a constant body height,
whatever the vehicle load.
 154

Exterior side lighters
These light up the zones facing
the driver’s and passenger’s
doors.

 88

Front/rear parking assist-
ance
Sensors, located in the
bumpers, detect obsta-
cles.
 152

Parking space sensor
This measures the size of a
space and informs you of the
possibility of parking.

 149
Exterior rear view mirrors
With electric foldback.
Automatically tilts in reverse
gear.
 67
E X T E R I O R

17
F A M I L I A R I S A T I O N
Ring B Ring D: rear screen wipe Stop.
Intermittent.
Timed wash and wipe. Fixed central controls steering
wheel
Lighting control
Ring A

 86 Control C: windscreen wipe

 90
D R I V I N G

1. Off

2. Automatic lighting

3. Sidelamps

4. Dipped beams/Main beams
Front foglamps
Rear foglamp Wiper control

1. Optional function controls

2. Cruise control/speed limiter and
parking space sensor

3. Audio system controls

4. Multifunction screen controls
 143

5. Horn
 114

6. Warning lamps for direction indica-
tors and vehicle lamps
 27

 85 Switching on "AUTO" mode

 Press the control down and release it.
Switching off "AUTO" mode

 Press the control up and return it to
position "0" .
The automatic wipe must be reactivated
each time the vehicle is started.

19
F A M I L I A R I S A T I O N

 149
Electronic parking brake
Before leaving the vehicle, check that
the electronic parking brake warning
lamp P (red) is permanently on.
If you leave the vehicle with the en-
gine running, manually apply the
parking brake.
Never leave a child alone inside the
vehicle with the ignition on, as they
could release the parking brake. Parking space sensor
You can select this function by pressing
on button
A .
Once the space has been measured, the
function displays the following messages: <
20 km/h (12 mph)

Parking possible

Parking diffi cult

Parking not advised
This device combines:
- automatic functions: Automatic ap-
plication when the engine stops and
automatic release on use of the ac-
celerator (automatic operation by
default);
- manual use: Permanent manual ap- plication/release of parking brake is
possible by operating control A . Hill start assist
To aid starting on a gradient, your ve-
hicle is equipped with a system which
keeps it immobilised for about 2 seconds,
the approximate time it takes to move
your foot from the brake pedal to the
accelerator pedal.

 133
D R I V I N G

 126

30
I
I N S T R U M E N T S a n d C O N T R O L S Air bags If this comes on, it indicates
the occurrence of a fault in
one of the air bag or seat
belt pretensioner systems.
Maximum coolant temperature
If this comes on, it indicates
that the temperature in the
cooling system is too high.
Stop the vehicle immediately
and as safely as possible.
Low fuel level When the tank is full, all the
bars are lit up.
If the fuel low warning lamp
comes on accompanied by
an audible signal and a message on
the multifunction screen, there are ap-
proximately 7 litres of fuel remaining
in the tank and 2 or 3 bars fl ash in
the instrument panel.
When the last bar goes out, there
are approximately 2 litres of fuel
remaining in the tank.
A control located on the panel to the
right of the steering wheel allows
you to open the fuel fl ap from inside
the vehicle.
Battery charge
If this comes on, it indicates
the occurrence of a fault in
the battery charging circuit
(dirty or loose terminals, slack
or cut alternator belt, ...). Door open
A door, the boot or the rear
screen is open:
-
if the speed is below 6 mph (10 km/h), this
warning light comes on continuously.
- if the speed is higher than 6 mph (10 km/h), this warning light comes on continuously,
accompanied by an audible signal.
Seat belt not fastened/
unfastened
This warning lamp informs
you if the driver’s or front
passenger’s seat belt is
not fastened (depending
on model), and if the front
passenger’s (depending on
model) or the second row
passengers’ seat belts are
unfastened. The lit up positions rep-
resent those whose seat belts are
not fastened/unfastened. Seat belts unfastened during the
journey:
- the point corresponding to the
seat position with seat belt un-
fastened lights up between 0 and
20 km/h. Above 20 km/h (approx.
12 mph), it fl ashes accompanied
by a sound signal for around
120 seconds. The sound signal
stops when the ignition is switched
off or if a door is opened.
Depending on model, the front pas-
senger seat may be fi tted with a
presence sensor; the correspond-
ing warning lamp will only come on
if the seat is occupied and the seat
belt not fastened.
Driver’s or front passenger’s seat belt
not fastened with presence sensor:
-
the warning lamp lights up between
0 and 20 km/h. Above 20 km/h
(approx.12mph), it fl ashes accom-
panied by a message on the multi-
function screen and a sound signal
for around 120 seconds
.
Rear passengers’ or front passen-
ger’s seat belt not fastened without
presence sensor:
-
when the ignition is switched on, the
points corresponding to the seat po-
sitions with seat belts not fastened
remain lit up for 30 seconds.

46
III
C O M F O R T
Air conditioning
To ensure that your system operates
correctly, it is recommended to have
it checked regularly.
Water arising from condensation
in the air conditioning drains away
through a hole provided for this pur-
pose. A pool of water may thus form
under the vehicle when stationary.
To keep the air conditioning com-
pressor well sealed, it is essential to
operate the air conditioning at least
once in every month.
Regardless of the season, the air
conditioning is useful, since it re-
moves humidity and condensation.
To be effective, the air conditioning
should only be used with the win-
dows closed.
If after a lengthy stop in bright sunlight
the interior temperature is excessive,
air the passenger compartment by
opening the windows for a few mo-
ments, then close them again.
The air conditioning operates by using
power from the engine. This results in
a slight increase in fuel consumption.

Dust filter/Odour filter
(active carbon)
There is a fi lter for excluding odours
and dust.
This fi lter has to be changed in ac-
cordance with the vehicle mainte-
nance schedule (see "Maintenance
Guide").
Air circulation
Air vents on the fl oor underneath the
front seats provide enhanced heat-
ing for the rear seat positions; take
care not to obstruct them.
Air vents
The air vents to the face have grilles
and thumbwheels to adjust the air
fl ow and direction (up-down, right-
left).
The automatic regulation of the air
conditioning, inside the cabin, uses
a number of sensors (sunlight sen-
sor, outside temperature sensor...)
that relieve you of the need to make
frequent adjustments outside the
displayed temperature.
Be careful not to obstruct the sun-
light sensor, located on the dash-
board behind the instrument panel.
Sensors

50
III
C O M F O R T
3. Adjustment of the air blower speed
The air blower operates only when
the engine is running (except when
the REST function is activated).
To adjust the fl ow of air, press on the
button:
to increase the air fl ow,
to decrease the air fl ow (this
button also has the REST
function).
The level of air fl ow is indicated on
the display by the progressive fi lling
of the ventilator blades.
If you place the air blower on posi-
tion 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 avail-
able when you switch on the igni-
tion and when you stop the engine.
This function allows you to retain
ventilation in the passenger com-
partment for a few minutes, even
with the engine stopped.
When you leave the vehicle, any
passengers present can still have
the benefi t of air circulation, even
though the engine is not running.

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 acti- vates the function for a timing of
just a few minutes. Two blades of
the blower will fi ll to signify that
the function is active.
- It can be deactivated and reacti- vated during the timing.
- At the end of the timing, the dis- play will go off. This button does not activate the air
conditioning, only the air blowers. In
the REST function, the air fl ow and
distribution are controlled automati-
cally and you cannot modify them.

On stopping the engine:
- The displays remain lit up, the blower is shown empty and the
function can be activated for
30 seconds.
- A press on the REST button during the next 30 seconds ac-
tivates the function for a timing
of several minutes. The dura-
tion and availability of the func-
tion are variable according to the
state of charge of the battery (a
protection to guarantee engine
starting). Two blower blades fi ll
up to signify that the function is
active. It remains active, even af-
ter the doors have been locked,
until the end of the timing.
- A further press before the end of the timing defi nitively stops the
function. 4. Adjustment of the air
distribution

 Press on button 4 so that
the air fl ows scroll suc-
cessively on the display.
The air distribution you have
chosen is confi rmed by the lighting
of the corresponding warning lamps
in the display.
There are 7 possible adjustments.
5. Air recirculation
This button activates the recircula-
tion of air within the passenger com-
partment and also has an automatic
function.

Entry of air in automatic
mode (activated by default, in
automatic comfort regulation) .
According to version, the
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 pollut-
ants. Then it automatically activates
recirculation of cabin air.

86
V I S I B I L I T Y
V

C. fog lamps selection ring.
The fog lamps operate with the side
lights and the dipped and main beam
headlamps.
- 1 st
turn forwards: lighting of rear
foglamp.
- 1 st
turn rearwards: extinction of
rear foglamp. - 1
st
turn forwards: lighting of front
foglamps.
- 2 nd
turn forwards: lighting of rear
foglamps.
- 1 st
turn rearwards: extinction of
rear foglamps.
- 2 nd
turn rearwards: extinction of
front foglamps.
Model with rear foglamp only
Model with front and rear
foglamps In good or rainy weather, both day
and night, the front fog lamps and
the rear fog lamp are prohibited. In
these situations, the power of their
beams may dazzle other drivers.
They should only be used in fog or
snow.
In these weather conditions, it is
your responsibility to switch on the
fog lamps and dipped headlamps
manually as the brightness sensor
may detect suffi cient light.
Do not forget to switch off the front
fog lamps and the rear fog lamp
when they are no longer necessary.
Lights on buzzer
The triggering of an audible signal
when a front door is opened warns
the driver that he has forgotten to
switch off his vehicle’s lights, with
the ignition off and in manual lights
mode.
In this case, switching off the lights
stops the audible signal.
With the ignition off, if the dipped
headlamps remain on, they will
switch off automatically after thirty
minutes to prevent discharging of
the battery.

88
V I S I B I L I T Y
V
Linked with the automatic
"Guide-me-home" lighting
Association with the automatic lighting
provides the "guide-me-home" lighting
with the following additional options:
- selection of the duration of main-taining of the lighting for 15, 30
or 60 seconds in the vehicle
parameters on the multifunc-
tion display confi guration menu
(in the case of the monochrome
screen A, the duration is fi xed),
- automatic activation of "guide- me-home" lighting when auto-
matic lighting is in operation.
Operating fault
In the event of a malfunction of the
brightness sensor, the lights come
on, a message appears on the mul-
tifunction display, accompanied by
an audible signal.
Consult a CITROËN dealer. In fog or snow, the brightness
sensor may detect suffi cient light.
Therefore, the lights will not come
on automatically.
Do not cover the brightness sen-
sor, linked with the rain sensor and
located in the centre of the wind-
screen behind the interior mirror;
the associated functions would no
longer be controlled. EXTERIOR SIDE LIGHTERS
These illuminate:
- the zones facing the driver’s and passenger’s doors,
- the zones forward of the door mirrors and rearward of the front
doors.
Switching on
The side lighters come on:
- when you unlock the vehicle or press on the lighting button on
the remote control,
- when you remove the key from the ignition,
- when you open a door,
- when you use the remote control.
Switching off
They are timed to go out automati-
cally.
THE HEADLAMPS
To avoid dazzling other road users,
the height of the halogen bulb head-
lamps must be adjusted according
to the load in the vehicle. To do this,
turn the control, located below the
fascia to the right of the driver, to the
appropriate position:

0. 1 or 2 people in the front seats.

-. 3 people.

1. 4 to 7 people.

-. Intermediate setting.

2. 4 to 7 people + maximum autho-
rised loads.

-. Intermediate setting.

3. Driver + maximum authorised
loads.
Initial setting is position "0".