2010.5 Citroen C4 PICASSO Owner's Manual

IX
167
D R I V I N G
Front parking sensors
In addition to the rear parking sen-
sors, the front parking sensors are
triggered when an obstacle is de-
tected in front and the speed of the
vehicle is still below 6 mph (10 km/h).
The sound emitted by the speaker
(front or rear) indicates whether the
obstacle is in front or behind.
The front parking sensors are inter-
rupted if the vehicle stops for more
than three seconds in forward gear,
if no further obstacles are detected
or when the speed of the vehicle ex-
ceeds 6 mph (10 km/h). Deactivation/Activation of the
front and rear parking sensors
The function is deactivated by press-
ing this button. The indicator lamp
on the button comes on.
Pressing this button again reacti-
vates the function. The indicator
lamp on the button switches off.
The function will be deactivated au-
tomatically if a trailer is being towed
or a bicycle carrier is fi tted (vehicle
fi tted with a towbar or bicycle car-
rier recommended by CITROËN). Operating fault
If an operating fault occurs,
when reverse gear is en-
gaged this warning lamp is
displayed on the instrument
panel and/or a message appears on
the screen, accompanied by an au-
dible signal (short bleep).
Consult a CITROËN dealer.
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 bleep) indicates that
the sensors may be dirty.
When the vehicle is moving at a
speed below 6 mph (10 km/h), cer-
tain sound sources (motorcycle,
lorry, pneumatic drill, etc.) may trig-
ger the audible signals of the parking
sensor system.

IX
168
D R I V I N G
PNEUMATIC SUSPENSION

Grand
C4 Picasso
C4 Picasso
The pneumatic rear suspension en-
hances driving comfort by maintain-
ing a constant body height whatever
the vehicle load. Operation
- If there is an increase in vehicle
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, automatic height correc-
tion will be activated as soon as the
vehicle starts to move. During height
correction, the service warning lamp
comes on 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 height correction can
be deactivated:

 press button B located on the
left hand boot interior trim for ap-
proximately two seconds,

 release the button when you
hear a beep. Deactivation is con-
fi rmed by the lighting of the indi-
cator lamp in the button B .
In the event of a system fault,
alert messages, always in asso-
ciation with the service warning
lamp, will appear in the instru-
ment panel . Consult a CITROËN
dealer.
You must deactivate the system in
the following circumstances:
- when working under the vehicle,
- when changing a wheel,
- when transporting the vehicle on
a lorry or ferry
To reactivate automatic height cor-
rection:

 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 in the button B .

IX
169
D R I V I N G
Loading/unloading
assistance
Grand
C4 Picasso
C4 Picasso
The pneumatic suspension has an
additional function: the possibility to
raise or lower the height of the rear
of the vehicle when stationary, in or-
der to facilitate loading/unloading of
the boot. Increasing the height of the boot
fl oor

 Press continuously the top con-
trol 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 the bottom of con-
trol A twice.
Decreasing the height of the boot
fl oor

 Press continuously the bottom of
control A .
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 the top of control A
twice.
Driving with the boot in a
low position may damage
underbody components.

Particular points
- If you start the vehicle without having returned it to the normal
height, automatic correction will
activate as soon as the vehi-
cle starts to move. During the
correction, the service warning
lamp comes on and a message
on the screen reminds you not to
exceed 6 mph (10 km/h).
- Loading assistance does not function in the following circum-
stances:
- If button B is illuminated,
- in power economy mode,
- when you fi rst use the function, press control A for two seconds
to initialise the system. The sys-
tem will respond normally to sub-
sequent operation of the control.

X
171
C H E C K S
BONNET
Opening
 At the front of the bonnet, 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
closed 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 bon-
net while the left hand 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 left hand front door.

 Pull the interior release lever A ,
located at the bottom of the door
frame.
Before doing anything un-
der the bonnet, switch off
the Stop & Start system
to avoid any risk of injury result-
ing from an automatic change to
START mode.

X
172
C H E C K S
BLEEDING THE DIESEL FUEL 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 the fi lter regularly (at every oil
change).
To evacuate the water, slacken the
bleed screw or the water-in-Diesel
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 sensor.

X
173
C H E C K S
RUNNING OUT OF FUEL (DIESEL)
1.6 litre HDi engine
Detach the protective cover for
access to the priming pump. 2.0 litre HDi engine
Detach the protective cover for
access to the priming pump. Priming the fuel system
In the event of running out of fuel:

 after fi lling (minimum 5 litres),
squeeze the manual priming
pump repeatedly, until some re-
sistance is felt,

 then operate the starter, gently
pressing the accelerator until the
engine starts.
If the engine fails to start at the fi rst
attempt, wait 15 seconds before try-
ing again.
If the engine fails to start after a few
attempts, repeat the procedure from
the beginning. When the engine is
idling, accelerate gently to complete
the purge of the circuit.
HDi engines are of a highly
technical nature.
All maintenance and repairs re-
quire specifi c qualifi cations which
only your CITROËN dealer can
guarantee.

X
174
C H E C K S
PETROL ENGINES
The covers and caps provide access for checking the levels of the various fl uids and for replacing certain components.

1. Power steering fl uid reservoir.

2. Screenwash and headlamp wash
reservoir.

3. Coolant header tank.
4. Air fi lter.

5. Brake fl uid reservoir.

6. Battery/Fuses.
7. Fusebox.

8. Engine oil fi ller cap.

9. Engine oil dipstick.

X
175
C H E C K S * According to engine.
DIESEL ENGINES
The covers and caps provide access for checking the levels of the vari ous fl uids, for replacing certain components and
for priming the fuel system.

1. Power steering fl uid reservoir.

2. Screenwash and headlamp wash
reservoir.

3. Coolant header tank

4. Brake fl uid reservoir.

5. Battery/Fuses.
6. Fusebox.

7. Air fi lter.

8. Engine oil fi ller cap.

9. Engine oil dipstick.

10. Priming pump * .

11. Bleed screw * . As the Diesel fuel system
is pressurised, any work on
this system is prohibited.