check engine Citroen C4 2009 1.G User Guide

119
IX
D R I V I N G
Deactivation

 Either by pressing on the brake
pedal or on the clutch pedal.

 Or by pressing button 3 .

 Or if either the ESP or the ASR
system is active.
The cruise control is not active if the
gear lever is in neutral.
These actions cause the information

"OFF" to appear on the instrument
panel display.
These actions do not cancel the
cruise speed which remains dis-
played in the instrument panel.
Reactivation

 By recall of the memorised
speed
After a disengagement, press on button 3 . Your vehicle automati-
cally returns to the memorised
cruise speed which is displayed
in zone A .
If the memorised cruise speed is higher than the current speed,
the vehicle will accelerate to
reach the former.

 By selection of the current
speed
Press on button 2 or 4 once the
desired speed has been reached.
The information "OFF" will then
disappear from the instrument
panel display. Overriding the programmed
speed
During the operation of cruise con-
trol, it is always possible to use the
accelerator to go faster than the
cruise speed (for example to over-
take another vehicle). The speed
displayed in zone
A fl ashes.
You have only to release the acce-
lerator pedal to return to the cruise
speed.
Return to normal driving

 By an action on the control 1 from
position "REG" to position 0 .

 By the engine stopping.
The cruise speed previously chosen
is no longer memorised. Operating fault
If there is a malfunction, a message
will display accompanied by an
audible signal and lighting of the
service warning lamp.
Have it checked by a CITROËN
dealer.
If during the operation of cruise
control, the system is unable to
keep within the memorised speed
(for example on a steep descent),
then the speed fl ashes. Adapt your
speed as necessary. Cruise control should only be used
when the driving conditions allow
you to drive at a constant speed.
Do not use it in heavy traffi c, or on
dangerous or slippery roads.
The driver must remain attentive
and in full control of his vehicle.
You are recommended to keep your
feet within range of the pedals.
To avoid any risk of interfering with
the pedals:
- check that the fl oor mat is cor-
rectly positioned,
- never use more than one fl oor mat.

124
X
C H E C K S
BONNET
Protects the components of the engine and provides access for checking levels.
Opening
 Push the exterior control B to the
left and raise the bonnet.


Unclip the strut C from its housing.

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

 Take the strut out of the support
notch.

 Clip the strut in its housing.

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

 Pull on the bonnet to check that
it is secured correctly.
The location of the interior control
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.

 Pull the interior control A , located
under the dashboard, to the right.

129
X
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer.
Oil level
Oil change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. Oil specifi cation
The oil must correspond to your engine
and conform to the manufacturer's
recommendations.
Brake fluid level
Fluid change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation.
This fl uid must be changed regu-
larly. Fluid which has been used for
too long may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
fulfi l the DOT4 standards.
Coolant level
Draining the system
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
The reading will only be
correct if the vehicle is on
level ground and the engine
has been off for more than
15 minutes.
The check is carried out either when
the ignition is switched on using the
oil level indicator on the instrument
panel, or using the dipstick.
Between two oil changes, the con-
sumption should not exceed 0.5 litre
per 600 miles (approx. 1 000 km).
Check this level also between each
scheduled service and before long
journeys. The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the tem-
perature of the coolant is regulated
by the fan. This can operate 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, unscrew
the cap by two turns to allow the pres-
sure to drop. When the pressure has
dropped, remove the cap and top up
the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

131
X
C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and according to your engine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not require
any maintenance.
However, check that the
terminals are clean and
correctly tightened, particu-
larly 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. Air filter and passenger
compartment filter
Refer to the Maintenance
and Warranty Guide for
details of the replacement
intervals for these compo-
nents.
Depending on the environment (e.g.
dusty atmosphere) and the use of
the vehicle (e.g. city driving), replace
them twice as often if necessary
(refer to the "Engines" paragraph).
A clogged cabin fi lter may have an
adverse effect on the performance
of the air conditioning system and
generate undesirable odours.
Oil filter
Replace the oil fi lter each
time the engine oil is
changed. 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 occasionally no-
tice water vapour being emitted from
the exhaust when accelerating. This is
of no consequence 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 conditions
of urban driving of exceptionally 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.
Refer to the Maintenance and Warranty Guide for details of the replacement
interval for this component.

132
X
C H E C K S
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 relating to
checking the brake disc
wear, contact a CITROËN
dealer.
Parking brake If a loss of effectiveness
of this system is noticed,
the parking brake must be
checked, even between
two services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent quality
and specifi cations.
In order to optimise the operation
of units as important as the braking
system, CITROËN selects and of-
fers very specifi c products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compartment
is strictly prohibited .
Refer to the Maintenance and
Warranty Guide for the details of the
level checking interval for this com-
ponent.
Refer to the Maintenance and
Warranty Guide for details of the
checking interval for this component.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this com-
ponent.

149
XI
P R A C T I C A L I N F O R M A T I O N Fuses in the engine
compartment Access to the fuses

 Detach and remove the cover.

Access to the second dashboard
fusebox

After any operation on the fuses
in the fusebox, check that the
fusebox cover is put back cor-
rectly for their protection. Table of fuses

Fuse N° Rating Functions

F36 30 A Hi-Fi amplifi er

F37 30 A Driver’s electric seat

F39 20 A Heated seats

After any operation, carefully refi t
the cover. If the cover is not cor-
rectly positioned or not properly
closed, this could cause serious
problems on your vehicle. For
the same reason, take care not to
spill any liquid in the fusebox. All work on the maxi-fuses,
which are located in these
fuseboxes and which give
extra protection, must be carried
out by CITROËN technicians.

149
XI
P R A C T I C A L I N F O R M A T I O N Fuses in the engine
compartment Access to the fuses

 Detach and remove the cover.

Access to the second dashboard
fusebox

After any operation on the fuses
in the fusebox, check that the
fusebox cover is put back cor-
rectly for their protection. Table of fuses

Fuse N° Rating Functions

F36 30 A Hi-Fi amplifi er

F37 30 A Driver’s electric seat

F39 20 A Heated seats

After any operation, carefully refi t
the cover. If the cover is not cor-
rectly positioned or not properly
closed, this could cause serious
problems on your vehicle. For
the same reason, take care not to
spill any liquid in the fusebox. All work on the maxi-fuses,
which are located in these
fuseboxes and which give
extra protection, must be carried
out by CITROËN technicians.

153
XI
P R A C T I C A L I N F O R M A T I O N
BATTERY
Procedure for charging your battery
when it is fl at or for starting the en-
gine using another battery.
Access to the battery
The battery is located under the bonnet.
To gain access to it:

 open the bonnet using the inte-
rior lever, then the exterior lever,

 secure the bonnet strut,

 remove the plastic cover to gain
access to the two terminals,

 unclip the fuse box to remove
the battery, if necessary. Charging the battery using a
battery charger

 Disconnect the battery from the
vehicle.

 Follow the instructions for use
provided by the manufacturer of
the charger.

 Reconnect starting with the neg-
ative terminal (-).

 Check that the terminals and
connectors are clean. If they are
covered with sulphate (whitish or
greenish deposit), remove them
and clean them.
Starting using another
battery
The batteries contain harm-
ful substances such as sul-
phuric acid and lead. They
must be disposed of in accordance
with regulations and must not, in
any circumstances, be discarded
with household waste.
Take used remote control batteries
and vehicle batteries to a special
collection point.
It is advisable to disconnect the
battery if the vehicle is to be left un-
used for more than one month.

 Connect the red cable to the
positive terminal (+) of the fl at
battery A , then to the positive ter-
minal (+) of the slave battery B .

 Connect one end of the green or
black cable to the negative ter-
minal (-) of the slave battery B .

 Operate the starter, let the en-
gine run.

 Wait until the engine returns to
idle and disconnect the cables.

156
XI
P R A C T I C A L I N F O R M A T I O N
TOWING A TRAILER,A CARAVAN, ETC.
Towbar suited to the attachment of a
trailer or caravan with additional sig-
nalling and lighting.
Your vehicle is primarily designed
for transporting people and luggage,
but it may also be used for towing a
trailer. If the trailer is not fi tted by a
CITROËN dealer, it is imper-
ative that it is fi tted using the
electrical pre-equipment installed at
the rear of the vehicle, in accordance
with the manufacturer's instructions.
Driving advice
Distribution of loads


Distribute the load in the trailer so
that the heaviest items are as close
as possible to the axle and the nose
weight approaches the maximum
permitted without exceeding it.
Air density decreases with altitude,
thus reducing engine performance.
Above 1 000 metres, the maximum
towing load must be reduced by
10 % and so on for every 1 000 me-
tres of altitude.
Refer to the "Technical Data" section
for details of the weights and towing
loads which apply to your vehicle.
Side wind

 Take into account the increased
sensitivity to side wind. Cooling
Towing a trailer on a slope increases
the temperature of the coolant.
As the fan is electrically controlled,
its cooling capacity is not dependent
on the engine speed.

 To lower the engine speed, reduce
your speed.
The maximum towing load on a long
slope depends on the gradient and
the ambient temperature.
In all cases, pay attention to the
coolant temperature.

 If the warning lamp and
the STOP warning lamp
come on, stop the vehicle
and switch off the engine
as soon as possible.
Braking
Towing a trailer increases the brak-
ing distance.
Tyres

 Check the tyre pressures of the
towing vehicle and of the trailer,
observing the recommended
pressures.
Lighting

 Check the electrical signalling on
the trailer.
The rear parking assistance will
be deactivated automatically if an
original CITROËN towbar is used.
We recommend the use of genuine
CITROËN towbars and their har-
nesses that have been tested and
approved from the design stage
of your vehicle, and that the fi t-
ting of the towbar is entrusted to a
CITROËN dealer. Driving with a trailer subjects the
towing vehicle to more signifi cant
stress and its driver must be particu-
larly careful.

94
VII
C H I L D S A F E T Y
MANUAL CHILD LOCK
Locking

 Turn the red control one quarter
of a turn to the right using the
ignition key.
Unlocking

 Turn the red control one quarter
of a turn to the left using the igni-
tion key.
ELECTRIC CHILD LOCK *
Mechanical system to prevent ope-
ning of the rear door using its interior
control.
The control is located on the edge of
each rear door. Remote control system to prevent
opening of the rear doors using their
interior controls and use of the rear
electric windows.
Activation

 Press the button A .
The indicator lamp on the button A
comes on, accompanied by a mes-
sage on the multifunction screen.
This indicator lamp remains on until
the child lock is deactivated. The indicator lamp on the button
A
switches off, accompanied by a mes-
sage on the multifunction screen.
This indicator lamp remains off until
the child lock is activated.
Any other status of the indicator
lamp indicates a malfunction of the
electric child lock. Have it checked
by a CITROËN dealer.
This system is independent and in
no circumstances does it take the
place of the central locking control.
Check the status of the child lock
each time you switch on the ignition.
Always remove the key from the
ignition when leaving the vehicle,
even for a short time.
In the event of a serious impact,
the electric child lock is deactiva-
ted automatically to permit the exit
of the rear passengers. This warning lamp comes
on temporarily on the instru-
ment panel when the child
lock is activated.
The control A is located on the dri-
ver's door, with the electric window
controls. Deactivation

 Press the button A again.
* Depending on version.
It also comes on when the ignition
is switched on, then switches off ap-
proximately ten seconds after the
engine is started.