2010 CITROEN C4 PICASSO service

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168
DRIVING
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 bum-
per, trigger a warning if the vehicle
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 this button, the indicator
lamp comes on.



Deactivation



)
Press this button again, the indi-
cator lamp goes 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
direction indicator is active and for
approximately 20 seconds after the
direction indicator is switched off.
A warning may be transmitted if a
direction 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 in the screen.
Contact a CITROËN dealer or a
qualifi ed workshop.
The lane departure warning sys-
tem cannot, in any circumstances,
replace the need for vigilance and
responsibility 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.

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171
DRIVING
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 6
mph (10 km/h).
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 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
. Contact a CITROËN
dealer or a
qualifi ed workshop.


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 button B
again for approxi-
mately two seconds,

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

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172
DRIVING

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 vehicle
starts to move. During the cor-
rection, 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.

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CHECKS

PARTNERS IN PERFORMANCE
AND PROTECTING THE
ENVIRONMENT

Innovation in the search for
performance
For over 40 year, the TOTAL Research and
Development departments have developed
for CITROËN, lubricants to match the latest
technical innovations on CITROËN vehi-
cles, both for competition and for everyday
motoring.
For you, this is an assurance that you will
obtain of the best performance for your
engine.

Optimum protection for your
engine
By having your CITROËN vehicle
serviced with TOTAL lubricants,
you are contributing towards im-
proving the life and performanc-
es of your engine, while also
protecting the environment.

prefers

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179
CHECKS






CHECKING LEVELS

















Oil level


Oil specifi cation
The oil must be the correct grade
for your engine and conform to the
manufacturer's recommendations.










Brake fl uid level

Changing the fl uid
Refer to the servicing booklet for de-
tails of the interval for this operation.

Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and meet the DOT4 standard.


The check is carried out ei-
ther when the ignition is
switched on using the oil lev-
el indicator on the instrument
panel, or using the dipstick.
This manual check will only be cor-
rect if the vehicle is on level ground
and the engine has been off for more
than 30 minutes.
It is normal to top up the oil lev-
el between two services (or oil
changes). CITROËN recommends
that you check the level, and top
up if necessary, every 3 000 miles
(5 000 kms). The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

Take care when working
under the bonnet, as cer-
tain areas of the engine
may be extremely hot (risk
of burns).











Power steering fl uid level
The power steering fl uid
level should be close to the
"MAX" mark. With the en-
gine cold, unscrew the cap
to check the level.
If a level drops signifi cantly, have
the corresponding system checked
by a CITROËN dealer or a qualifi ed
workshop.
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.

Engine oil change
Refer to the servicing booklet for de-
tails of the interval for this operation. After topping up the oil, the check
when switching on the ignition with
the oil level indicator in the instru-
ment panel is not valid during the
30 minutes after topping up.

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180
CHECKS




















Screenwash and headlamp wash
fl uid

Fluid specifi cation
For optimum cleaning and to avoid
freezing, this fl uid must not be
topped up with or replaced with plain
water.











Diesel additive level (Diesel
engine with particle emission
filter)
A low additive level is indicated by
illumination of the service warning
lamp, accompanied by an audible
warning and a message in the multi-
function screen.

Topping up
This additive must be topped up by
a CITROËN dealer or a qualifi ed
workshop without delay.









Used products

Avoid prolonged contact of
used oil or fl uids with the
skin.
Most of these fl uids are harmful to
health or indeed very corrosive.
Do not discard used oil or
fl uids into sewers or onto
the ground.
Take used oil to a CITROËN
dealer or a qualifi ed workshop
(France) or to an authorised waste
disposal site.
In the case of vehicles fi tted
with headlamp washers, the
low fl uid level is indicated
by an audible signal and a
message in the screen.
Top up the reservoir when you next
stop the vehicle.









Coolant level

Changing the coolant
The coolant does not have to be
changed.

Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.

The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm,
the temperature of the coolant is
regulated by the fan. This can oper-
ate with the ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate after the vehicle has
been switched off, even if the en-
gine is cold.

In addition, as the cooling system is
pressurised, wait at least one hour
after switching off the engine before
carrying out any work.
To avoid any risk of scalding, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.

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181
CHECKS






CHECKS












12 V battery

The battery does not re-
quire any maintenance.
However, check that the
terminals are clean and
correctly tightened, partic-
ularly in summer and winter.
When carrying out work on the bat-
tery, refer to the "Practical information"
section for details of the precautions
to be taken before disconnecting the
battery and following its reconnection.










Particle filter system (Diesel)

Complementary to the catalytic
converter, this fi lter makes an ac-
tive contribution to the preservation
of air quality by the retaining of the
unburnt pollutant particles. Black
exhaust fumes are thus no longer
emitted.
After prolonged idling or driving
at very low speeds, you may oc-
casionally notice water vapour be-
ing emitted from the exhaust when
accelerating. This is of no conse-
quence to the running of the vehicle
or to the environment.
If there is risk of clogging, a mes-
sage appears on the multifunction
screen, accompanied by an audible
signal and lighting of the service
warning lamp.
This alert tells you that the particle
fi lter is starting to fi ll up (in condi-
tions of urban driving of excep-
tionally long duration: low speeds,
traffi c jams etc.)
To regenerate the fi lter, it is advised
to drive as soon as possible, when
traffi c conditions permit, at a speed
of 40 mph (around 60 km/h) or
more for at least fi ve minutes (until
the alert message disappears).
If this alert persists, consult a
CITROËN dealer or a qualifi ed
workshop.





The presence of this label, in par-
ticular with the Stop & Start system,
indicates the use of a specifi c 12 V
lead-acid battery with special tech-
nology and specifi cation, for which
the involvement of a CITROËN
dealer or a qualifi ed workshop is
required when replacing or discon-
necting the battery. Failure to observe this recommen-
dation may shorten the life of the
battery.
Unless otherwise indicated, check
these components in accordance
with the servicing booklet and ac-
cording to your engine.
Otherwise, have them checked by
a CITROËN dealer or a qualifi ed
workshop.





















Air filter and passenger
compartment filter
Refer to the servicing
booklet for details of the
replacement intervals for
these components.
Depending on the environ-
ment (e.g. dusty atmosphere) and
the use of the vehicle (e.g. city driv-
ing), replace them twice as often
if necessary
(refer to the "Engines"
section).
A clogged passenger compartment
fi lter may have an adverse effect on
the performance of the air condition-
ing system and generate undesir-
able odours.














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 compo-
nent.

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182
CHECKS















Brake pads

Brake wear depends on
the style of driving, par-
ticularly in the case of ve-
hicles used in town, over
short distances. It may be
necessary to have the condition of
the brakes checked, even between
vehicle services.
Unless there is a leak in the circuit, a
drop in the brake fl uid level indicates
that the brake pads are worn.







Manual gearbox

The gearbox does not re-
quire any maintenance (no
oil change).






6-speed electronic
gearbox system
The gearbox does not re-
quire any maintenance (no
oil change).






Automatic gearbox

The gearbox does not re-
quire any maintenance (no
oil change).

Brake disc wear

For information on checking
brake disc wear, contact a
CITROËN dealer or a quali-
fi ed workshop.






















Electric parking brake

This system does not require any
routine servicing. However, in the
event of a problem, have the system
checked by a CITROËN dealer or a
qualifi ed workshop.
For more information, see "Driving -
Electric parking brake - § Operating
faults". Refer to the servicing booklet for the
details of the level checking interval
for this component.
Refer to the servicing booklet for de-
tails of the checking interval for this
component.
Refer to the servicing booklet for de-
tails of the level checking interval for
this component.