2009.5 Citroen C4 PICASSO Owner's Manual

151
IX
D R I V I N G
LANE DEPARTURE WARNING SYSTEM
System which detects the involun-
tary crossing of longitudinal traffi c
lane markings on the ground (solid
or broken line).
Sensors, fi tted below the front
bumper, trigger a warning if the vehi-
cle drifts over a lane marking (speed
higher than 50 mph (80 km/h)).
This system is particularly useful on
motorways and main roads. Activation

 Press button A , the indicator
lamp comes on.
Deactivation

 Press button A again, the indicator
lamp switches off.
The status of the system remains
in the memory when the ignition is
switched off.
Detection
You are warned by the vibration of
the driver's seat cushion:
- on the right-hand side, if the marking on the ground has been
crossed on the right,
- on the left-hand side, if the marking on the ground has been crossed on
the left.
No warning is transmitted while the direc-
tion indicator is active and for approxi-
mately 20 seconds after the direction
indicator is switched off.
A warning may be transmitted if a direc-
tion marking (e.g. arrow) or non-standard
marking (e.g. graffi ti) is crossed.
Operating fault
In the event of a malfunction, the
service warning lamp comes on, ac-
companied by an audible signal and a
message on the multifunction screen.
Consult a CITROËN dealer.
The lane departure warning system
cannot, in any circumstances, re-
place the need for vigilance and res-
ponsibility on the part of the driver. The detection may be impeded:
- if the sensors are dirty (mud, snow...),
- if the markings on the ground
are worn,
- if there is little contrast between the markings on the ground and
the road surface.

152
IX
D R I V I N G
AUDIBLE AND/OR VISUAL REAR PARKING ASSISTANCE
System consisting of four proximity
sensors, located in the rear bumper.
This detects any obstacle (person,
vehicle, tree, gate, etc.) behind the
vehicle, except obstacles located
just below the bumper.
An object, such as a stake, a road-
works cone or any other similar ob-
ject may be detected at the begin-
ning of the manoeuvre, but may no
longer be detected when the vehicle
comes close to it.
If there is an operating fault, when reverse gear is en-gaged this warning lamp comes on in the instrument panel, accompanied by an audible signal (short beep) and a message on the multifunction screen.
In bad or wintry weather, ensure that the sensors are not covered with mud, frost or snow.
Programming
You can activate or deactivate the system by means of the multifunc-tion screen confi guration menu. The system state is memorised when switching off the ignition.
For more information on access to the parking assistance menu, refer to the section on vehicle confi guration for your screen under "Multifunction screens".
The system will be deactivated auto-matically when towing a trailer or when a bicycle carrier is fi tted (vehi-cle fi tted with a towbar or bicycle car-rier recommended by CITROËN). cle fi tted with a towbar or bicycle car-cle fi tted with a towbar or bicycle car-
The parking assistance system cannot, in any circumstances, take the place of the vigilance and res-ponsibility of the driver.
Activation
The system is activated as soon as reverse gear is engaged, accompa-nied by an audible signal. The proxi-mity information is given by:
- an audible signal, which beco-mes more rapid as the vehicle approaches the obstacle,
- a graphic on the multifunction screen, with blocks which be-come increasingly closer to the vehicle.
When the distance between the rear of the vehicle and the obstacle is less than thirty centimetres, the audible signal becomes continuous and the "Danger" symbol appears on the multifunction screen.
On completion of the manoeuvre, when you exit reverse gear, the system becomes inactive.
Operating faults

153
IX
D R I V I N G The parking assistance system
cannot, in any circumstances, re-
place the need for vigilance and
responsibility on the part of the
driver.
AUDIBLE AND VISUAL FRONT AND REAR PARKING ASSISTANCE
System consisting of four proximity
sensors, installed in the front and/or
rear bumper.
It detects any obstacle (person, ve-
hicle, tree, barrier...) located in front
of and behind the vehicle, except for
obstacles located immediately be-
low the bumper.
An object, such as a stake, a road-
works cone or any other similar ob-
ject may be detected at the start of
the manoeuvre but may no longer
be detected when the vehicle moves
nearer to it. The parking assistance is
switched
on :
- by engaging reverse gear,
- at a speed below 6 mph (10 km/h) in forward gear.
This is accompanied by an audible
signal and/or displaying of the vehi-
cle on the multifunction screen.
The proximity information is indicated
by:
- an audible signal which be- comes more rapid as the vehicle
approaches the obstacle,
- a diagram on the multifunction screen, with blocks which move
closer to the vehicle.
The obstacle is located in relation to
the emission of the audible signal by
the speakers; front or rear and right
or left.
When the distance between the vehicle
and the obstacle is less than approxi-
mately thirty centimetres, the audible
signal becomes continuous and/or the
"Danger" symbol appears, depending
on the multifunction screen version. The parking assistance is
switched
off :
- when you exit reverse gear,
- when the speed is higher than 6 mph (10 km/h) in forward gear,
- when the vehicle has been station- ary for more than three seconds in
forward gear.

154
IX
D R I V I N G In bad weather or in winter, ensure
that the sensors are not covered
with mud, ice or snow. When re-
verse gear is engaged, an audible
signal (long beep) indicates that
the sensors may be dirty.
When the vehicle is being driven at
a speed below approximately 6 mph
(10 km/h), certain sources of noise
(motorcycles, lorries, pneumatic
drills...) may trigger the parking as-
sistance audible signals.

 Press button A again, the warn-
ing lamp switches off, the system
is reactivated.
Reactivation

 Press button A , the warning lamp
comes on, the system is fully de-
activated.
The system will be deactivated au-
tomatically when a trailer is being
towed or when a bicycle carrier is
fi tted (vehicle fi tted with a towbar
or bicycle carrier recommended by
CITROËN). Operating fault
Deactivation
If an operating fault occurs,
this warning lamp is displayed
on the instrument panel and/
or a message appears on the
multifunction screen, accompanied by
an audible signal (short beep), when
reverse gear is engaged.
Consult a CITROËN dealer.

155
IX
D R I V I N G
PNEUMATIC SUSPENSION

Grand C4
Picasso
C4 Picasso
The rear pneumatic suspension en-
hances driving comfort by maintain-
ing a constant body height whatever
the vehicle load. Operation
- If there is an increase in vehi-
cle load, a sinking of the rear of
the vehicle is detected and the
pneumatic springs infl ate in or-
der to compensate for the extra
weight.
- If there is a decrease in load, a rising of the rear of the vehicle is
detected and so the pneumatic
springs defl ate to return the ve-
hicle to its nominal height.
- If the vehicle has been unused for a long period, the pneumatic
springs may infl ate if necessary
when you unlock or open a door,
so as to return the vehicle to its
nominal height.
If you do not reactivate the system
manually, the automatic correction
will be activated as soon as the ve-
hicle starts to move. During the cor-
rection, the service warning lamp
lights up and a message on the
screen reminds you not to exceed
10 km/h (6 mph).
The automatic correction does not
function if the doors or the boot are
open.
The automatic correction operates
even if your vehicle is in power
economy mode. Activation/Deactivation
The automatic correction can be de-
activated:

 press on the button B for approx-
imately two seconds,

 release the button when you hear
a beep. Deactivation is confi rmed
by the lighting of the indicator lamp
on the button B .

In the event of the system mal-
functioning, alert messages,
always in association with the
service warning lamp, will dis-
play in the instrument panel .
Consult a CITROËN dealer.
It is essential that you should deactivate
the system in the following instances:
- working under the vehicle,
- changing a wheel,
- transporting the vehicle on a
truck or on a boot.
To reactivate the automatic correc-
tion:

 press again on the button B for
approximately two seconds,

 release the button when you hear
a beep. Activation is confi rmed
by the extinction of the indicator
lamp on the button B .

156
IX
D R I V I N G
Loading/unloading
assistance

Grand C4
Picasso
C4 Picasso
The pneumatic suspension has an
additional function associated with
it: the possibility to raise or lower
the height of the rear of the vehicle
when stationary, in order to facilitate
loading/unloading of the boot. Increasing the height of the boot
fl oor

 Press continuously at the top of
the control A , which is located in
the boot, on the left-hand side.
This action will be accompanied by
an audible signal. You can stop the
movement at any time by releasing
the control.
3 beeps will confi rm that the move-
ment has gone as far as it can.

Returning to the
normal
height

 Press briefl y twice at the bottom
of the control A .
Decreasing the height of the boot
fl oor

 Press continuously at the bottom
of the control A .
This action will be accompanied by
a sound signal. You can stop the
movement at any time by releasing
the control.
3 beeps will confi rm that the move-
ment has gone as far as it can.
Returning to the
normal
height

 Press briefl y twice at the top of
the control A .
Driving with the boot in a
low position may damage
the components located un-
der the bodyshell.

Special features
- If you start the vehicle without having returned it to the normal
height, automatic correction will
activate as soon as the vehicle
starts to move. During the cor-
rection, the service warning lamp
lights up and a message on the
screen reminds you not to ex-
ceed 10 km/h (6 mph).
- The loading assistance does not function in the following instances:
- If the button B is lit up,
- in power economy mode,
- when you fi rst use the function, press for two seconds on the
control A to initialise the system.
All subsequent actions will be
followed immediately by the de-
sired results.

158
X
C H E C K S
BONNET
Protects the components of the en-
gine and provides access for check-
ing levels.
Opening
 Push the exterior safety catch B
to the left and raise the bonnet.

 Unclip the stay C from its housing.

 Fix the stay in the notch to hold
the bonnet open. Closing

 Take the stay out of the support
notch.

 Clip the stay in its housing.

 Lower the bonnet then slam it
home at the end of its travel.

 Pull on the bonnet to check that
it is fully closed.
The location of the interior release
lever prevents opening of the
bonnet while the driver's door is
closed.
This operation must only be carried
out when the vehicle is stationary.
Avoid opening the bonnet in strong
winds.
When the engine is hot, take care
when handling the exterior safety
catch and the bonnet stay (risk of
burns).

 Open the driver's door.

 Pull the interior release lever A ,
located at the bottom of the door
frame.

159
X
C H E C K S
BLEEDING THE DIESEL FILTER
Protective cover
Removal

 Remove the protective cover by
unclipping fi rst point 1 , then 3
and 4 .

 Unclip point 2 pulling towards
you, then lift.
Refi tting

 Clip point 2 fi rst.

 Lower the cover, centring it.

 Clip points 1 and 4 , pushing ver-
tically and slightly rearwards.

 Clip point 3 , pushing vertically. Bleeding water from the fuel
filter
Bleed on a regular basis (at every
oil change).
To evacuate the water, slacken the
bleed screw or the water-in-diesel-
fuel sensor, which is located at the
base of the fi lter.
Persist until water ceases to fl ow
out.
Then retighten the bleed screw or
the water-in-diesel-fuel sensor.