2023 CITROEN C4 CACTUS check engine

104
Practical information
Storage recommendations
AdBlue® freezes at about -11°C and deteriorates
above +25°C. Containers should be stored in a
cool area and protected from direct sunlight.
Under these conditions, the fluid can be kept for
at least a year.
If the fluid has frozen, it can be used once it has
completely thawed out in the ambient air.
Never store AdBlue® containers in your
vehicle.
Precautions for use
AdBlue® is a urea-based solution. This fluid is
non-flammable, colourless and odourless (when
kept in a cool place).
In the event of contact with the skin, wash the
affected area with soap and running water. In the
event of contact with the eyes, immediately rinse
the eyes with large amounts of water or with an
eye wash solution for at least 15 minutes. Seek
medical attention if you feel a persistent burning
sensation or irritation.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high temperature, for
example), the risk of release of ammonia cannot
be excluded: do not inhale the fluid. Ammonia
vapours have an irritant effect on mucous
membranes (eyes, nose and throat).
Store AdBlue® out of the reach of
children, in its original container.
the vehicle's road holding - risk of an
accident! Driving with worn or damaged tyres reduces the
braking and road holding performance of the
vehicle. It is recommended to regularly check the
condition of the tyres (tread and sidewalls) and
wheel rims as well as the presence of the valves.

Using different size wheels and tyres from those
specifi ed can affect the lifetime of tyres, wheel
rotation, ground clearance, the speedometer
reading and have an adverse e

ffect on road
holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime.
AdBlue ®
(BlueHDi)
To respect the environment and ensure compliance with the Euro 6 standard, without
adversely affecting the performance or fuel
consumption of its Diesel engines, CITROËN
has taken the decision to equip its vehicles
with a system that associates SCR (Selective
Catalytic Reduction) with a Diesel Particle Filter (DPF) for the treatment of exhaust gases.
SCR System
Using a liquid called AdBlue ®
that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue® is contained in a special
tank holding about 17 litres.
Its capacity allows a driving range of
approximately 5,600
miles (9,000 km), which
may vary considerably depending on your
driving style.
An alert system is triggered once the reserve
level is reached: it is then possible to drive for a
further 1,500 miles (2,400
km) before the tank is
empty and the vehicle blocked.
If the estimated distance travelled by the vehicle
between two services is greater than 12,500
miles (20,000 km), it will be necessary to top up
the AdBlue.
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators, please refer to the
corresponding sections.
Once the AdBlue® tank is empty, a
system required by legislation prevents
starting of the engine.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard: the vehicle becomes
polluting.
In the event of a confirmed SCR system
malfunction, it is essential to visit a CITROËN
dealer or a qualified workshop. After 680
miles (1,100 km), a device is automatically
activated to prevent the engine from starting.
In both cases, a range indicator indicates
the distance that can be travelled before the
vehicle is stopped.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater for the
AdBlue
® tank, allowing you to continue driving
in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reserve level has been reached.
For the correct operation of the SCR
system:
–
Use only AdBlue® fluid that meets the ISO
22241 standard.
–
Never transfer

AdBlue
® to another container
as it would lose its purity.
–
Never dilute AdBlue® with water.
It is possible to obtain AdBlue
® from a CITROËN
dealer or a qualified workshop.
You can also visit a service station equipped with AdBlue® pumps specially
designed for passenger vehicles.
Never top up from an AdBlue® dispenser
reserved for heavy goods vehicles.

105
Practical information
7Storage recommendations
AdBlue® freezes at about -11°C and deteriorates
above +25°C. Containers should be stored in a
cool area and protected from direct sunlight.
Under these conditions, the fluid can be kept for
at least a year.
If the fluid has frozen, it can be used once it has
completely thawed out in the ambient air.
Never store AdBlue® containers in your
vehicle.
Precautions for use
AdBlue® is a urea-based solution. This fluid is
non-flammable, colourless and odourless (when
kept in a cool place).
In the event of contact with the skin, wash the
affected area with soap and running water. In the
event of contact with the eyes, immediately rinse
the eyes with large amounts of water or with an
eye wash solution for at least 15 minutes. Seek
medical attention if you feel a persistent burning
sensation or irritation.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high temperature, for
example), the risk of release of ammonia cannot
be excluded: do not inhale the fluid. Ammonia
vapours have an irritant effect on mucous
membranes (eyes, nose and throat).
Store AdBlue® out of the reach of
children, in its original container.
Procedure
Before starting the top-up procedure, ensure that
the vehicle is parked on a flat and level surface.
In wintry conditions, ensure that the temperature
of the vehicle is above -11
°C. Otherwise, the
AdBlue
® may be frozen and therefore cannot
be poured into its tank. Park your vehicle in a
warmer area for a few hours to allow the top-up
to be carried out.
Never pour AdBlue® into the Diesel fuel
tank.
If any AdBlue® is splashed, or if there are
any spillages on the bodywork, rinse
immediately with cold water or wipe with a
damp cloth.
If the fluid has crystallised, clean it off using a
sponge and hot water.
Important: in the event of a top-up after
a breakdown because of a lack of
AdBlue, it is essential to wait around 5
minutes before switching on the ignition,
without opening the driver’s door,
unlocking the vehicle, introducing the key
into the ignition switch, or introducing the
key of the “Keyless Entry and Starting

”
system into the passenger compartment

.
Switch on the ignition, then wait for 10
seconds before starting the engine.
► Switch off the ignition and remove the key
from the switch to switch off the engine.
or
►

With Keyless Entry and Starting, press the
"

START/STOP" button to switch off the engine.


► With the vehicle unlocked and the fuel filler
flap open, turn the blue cap of the AdBlue® tank
anti-clockwise and remove it.
►

With a bottle or container of

AdBlue
®: after
checking the expiry date, read the instructions
on the label carefully before pouring the contents
into the vehicle's AdBlue tank.
►

With an


AdBlue® pump: introduce the nozzle
and fill the tank until the nozzle automatically
cuts out.
In order not to overfill the AdBlue® tank:
–
Add between 10 and 13 litres using
AdBlue® containers.
–
Stop after the nozzle’ s first automatic cut-
out, if you are refilling at a service station.
The system only registers AdBlue
® top-ups of
5

litres or more.
If the AdBlue® tank is completely empty
– which is confirmed by the message

11 2
In the event of a breakdown
5.Socket for the security bolts (located in the
glove box or in the tool box) (depending on
version).
For adapting the wheelbrace to the special
"security" bolts.
For more information on Towing, please refer to
the corresponding section.
These tools are specific to the vehicle and may vary according to the level of
equipment.
Do not use them for any other purpose.
The jack must only be used to change a wheel with a damaged or punctured tyre.
Do not use any jack other than the one
supplied with the vehicle.
If the vehicle does not have its original jack,
contact a CITROËN dealer or a qualified
workshop to obtain the one that was intended
by the manufacturer.
The jack meets European standards, as
defined in the Machinery Directive 2006/42/
CE.
The jack does not require any maintenance.
Access to the spare wheel

The spare wheel is installed in the boot, under
the floor.
Depending on engine, the spare wheel is a
standard wheel or the space-saver type.
Taking out the wheel

► Unclip and take out the tool storage box.
► Unscrew the central nut.
►

Remove the fixing parts (nut and bolt).
► Raise the spare wheel towards the back of
the boot.
►

T
ake the wheel out of the boot.
Putting the spare wheel back in place

► Put the spare wheel back in place in its
housing.
►

Slacken the nut on the bolt by a few turns.
►


Position the fastening device (nut and bolt) in
the middle of the wheel.
►


T
ighten the central nut sufficiently to retain
the wheel correctly.
►

Depending on version, put the tool box back
in place

in the middle of the wheel and clip it in
place.
If there is no wheel in the well, the
fastening device (nut and bolt) cannot be
refitted.
Removing a wheel
Parking the vehicle
Immobilise the vehicle where it does not
block traffic: the ground must be level, stable
and non-slippery.
With a manual gearbox, engage first gear
then switch off the ignition to block the
wheels.
With an automatic gearbox, place the gear
selector in position P then switch off the
ignition to block the wheels.
Apply the parking brake and check that the
warning lamp is on in the instrument panel.
The occupants must get out of the vehicle
and wait where they are safe.
Never go underneath a vehicle raised using a
jack; use an axle stand.
Wheel with wheel trim
When refitting the wheel, refit the wheel
trim, starting by placing its aperture in line
with the valve and then pushing it into place
all round its edge with the palm of your hand.

11 5
In the event of a breakdown
8After changing a wheel
Store the punctured wheel in the boot or,
depending on version, remove the central cover
first to store it beneath the floor in place of the
spare wheel.


With a "space-saver" type spare wheel
Deactivate certain driving aid functions
(Active Safety Brake, etc.).
Do not exceed the maximum authorised
speed of 50 mph (80
km/h).
Driving with more than one “space-saver”
type spare wheel is prohibited.
Visit a CITROËN dealer or a qualified
workshop as soon as possible to have
the tightness of the bolts and the pressure of
the spare wheel checked.
Have the punctured tyre examined. After
inspection, the technician will advise you on
whether the tyre can be repaired or if it must
be replaced.
Changing a bulb
In some weather conditions (e.g. low
temperature or humidity), misting on the
internal surface of the glass of the headlamps
and rear lamps is normal, and will disappear
after the lamps have been on for a few
minutes.
The headlamps have polycarbonate lenses with a protective coating:
–

Do not clean them with a dry or abrasive
cloth, nor with detergent or solvent
products.
–


Use a sponge and soapy water or a pH
neutral product.
–


When using a high-pressure washer on
persistent marks, do not keep the lance
directed towards the headlamps, lamps or
their edges for too long, so as not to damage
their protective coating and seals.
Changing a bulb must only be done with
the ignition off and after the headlamp /
lamp has been switched off for several
minutes - risk of serious burns!
Do not touch the bulb directly with your
fingers; use a lint-free cloth.
It is essential only to use anti-ultraviolet
(UV) type bulbs, so as not to damage the
headlamp.
Always replace a failed bulb with a new bulb
of the same type and specification. To avoid
lighting imbalance, replace the bulbs in pairs.
Opening the bonnet / Accessing the
bulbs
With the engine warm, proceed with caution -
risk of burns!
Take care with objects or clothing that could
be caught in the blades of the cooling fan -
risk of strangulation!
Halogen bulbs (Hx)
To ensure good quality lighting, check
that the bulb is correctly positioned in its
housing.
After changing a bulb
To refit, carry out the fitting operations in
reverse order.
Close the protective cover very carefully to
guarantee the sealing of the lamps.
Light-emitting diode (LED)
headlamps and lamps
Depending on version, the affected types of
headlamps / lamps are:

122
In the event of a breakdown

For access to the (+) terminal:
► release the bonnet using the interior lever ,
then the exterior safety catch,
►

lift the bonnet, then fix it in place with its stay
.
(+) Positive terminal.
It has a quick-release clamp.
(-) Negative terminal.
The battery (-) terminal is not accessible, use the
engine mounting.
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a backup battery
(external or from another vehicle) and jump
leads or a battery booster.
Never try to start the engine by
connecting a battery charger.
Never use a 24 V or higher battery booster.
Check beforehand that the back-up battery
has a nominal voltage of 12 V and a capacity
at least equal to that of the discharged
battery.
The two vehicles must not be in contact with
each other.
Switch off all the electrical consumers on both
vehicles (audio system, wipers, lighting, etc.).
Make sure that the jump leads are not close
to moving parts of the engine (fan, belts, etc.).
Do not disconnect the (+) terminal while the
engine is running.


► Lift the plastic cover on the (+) terminal, if
your vehicle has one.
►

Connect the red cable to the positive terminal
(+) of flat battery A

(at the metal elbow) then to
the positive terminal (+) of back-up battery B or
the booster.
►

Connect one end of the green or black cable
to the negative terminal (-) of back-up battery B


or the booster (or the earth point on the other
vehicle).
►
Connect the other end of the green or black
cable to earth point C

on the broken down
vehicle.
►

Start the engine of the vehicle with the good
battery and leave it running for a few minutes.
►


Operate the starter on the broken down
vehicle and let the engine run.
If the engine does not start straight away

, switch
off the ignition and wait a few moments before
trying again.
►

W
ait until the engine returns to idle then
disconnect the jump lead cables in the reverse
order.
►

Refit the plastic cover to the (+) terminal, if
your vehicle has one.
►


Allow the engine to run for at least 30
minutes, by driving or with the vehicle stationary

,
so that the battery reaches an adequate state of
charge.
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
Charging the battery using a
battery charger
For optimum service life of the battery, it is
essential to maintain an adequate state of
charge.

123
In the event of a breakdown
8In some circumstances, it may be necessary to
charge the battery:
–
using the vehicle mainly for short journeys;
–


if the vehicle is to be taken off the road for
several weeks.
Contact a CITROËN dealer or a qualified
workshop.
To charge the vehicle's battery yourself, use only a charger compatible with
lead-acid batteries with a nominal voltage of
12

V.
Follow the instructions provided by the
manufacturer of the charger.
Never reverse polarities.
It is not necessary to disconnect the
battery.
►

Switch off the ignition.
►


Switch off all electrical consumers (audio
system, lighting, wipers, etc.).


► Switch off charger B before connecting
the cables to the battery, so as to avoid any
dangerous sparks.
►

Ensure that the charger cables are in good
condition.
►


Lift the plastic cover on the (+) terminal, if the
vehicle has one.
►


Connect the cables of charger B

as follows:
•

the positive (+) red cable to the (+) terminal
of battery

A,
•

the negative (-) black cable to earth point C


on the vehicle.
►

At the end of the charging operation, switch
off charger B

before disconnecting the cables
from battery A.

24v 12v
If this label is present, use only a 12 V
charger to avoid causing irreversible
damage to the electrical components related
to the Stop & Start system.
Never try to charge a frozen battery - risk
of explosion!
If the battery has frozen, have it checked by a
CITROËN dealer or by a qualified workshop
who will verify that the internal components
have not been damaged and that the case
has not cracked, which would mean a risk of
toxic and corrosive acid leaking.
Disconnecting the battery
In order to maintain an adequate state of charge
for starting the engine, it is recommended that
the battery be disconnected if the vehicle is
taken out of service for a long period.
Before disconnecting the battery:
►

Close all openings (doors, boot, windows,
roof).
►


Switch off all electrical consumers (audio
system, wipers, lighting, etc.).
►


Switch off the ignition and wait for 4
minutes.
At the battery, it is only necessary to disconnect
the (+) terminal.

145
CITROËN Connect Radio
10Some telephones offer display options.
Depending on the settings chosen, contacts can
be transferred in a specific order.
►
Modify the telephone directory display
settings.
Settings
When the treble and bass settings are
changed, the ambience is deselected.
When the ambience is changed, the treble
and bass settings are reset.
Selecting an ambience imposes the treble and
bass settings, and vice versa.
►

Modify the treble and bass or ambience
settings to obtain the desired musical ambience.
When the balance settings are changed, the
distribution is deselected.
When the distribution setting is changed, the
balance settings are deselected.
Selecting a distribution setting imposes the
balance settings, and vice versa.
►


Modify the balance setting or the distribution
setting to obtain the desired sound quality

.
There is a difference in sound quality
between audio sources.
To allow for optimal listening quality, the sound
settings can be tailored to different audio
sources, which can generate audible differences
when changing source.
►

Check that the sound settings are appropriate
to the sources listened to.

Adjust the sound
functions to the middle position. When the engine is off, the system switches
off after several minutes of use.
When the engine is switched off, the system's
operating time depends on the state of charge of
the battery.
The switch-off is normal: the system
automatically goes into energy economy mode
and switches off to maintain an adequate charge
in the battery.
►

Start the vehicle’
s engine to increase the
charge of the battery.

170
CITROËN Connect Nav
► Increase the volume of the audio system, to
maximum if required, and increase the volume of
the telephone if necessary
.
Ambient noise affects the quality of the
telephone call.
►

Reduce the ambient noise level (close
windows, reduce ventilation, slow down, etc.).
Some contacts are duplicated in the list.
The options for synchronising contacts are:
synchronise the contacts on the SIM card, the
contacts on the telephone, or both. When both
synchronisations are selected, some contacts
may be duplicated.
►


Select "Display SIM card contacts" or
"Display telephone contacts".
The contacts are not listed in alphabetical
order

.
Some telephones offer display options.
Depending on the settings chosen, contacts can
be transferred in a specific order.
►

Modify the telephone directory display
settings.
The system does not receive SMS.
SMS text messages cannot be sent to the
system in Bluetooth mode.
Settings
When the treble and bass settings are
changed, the ambience is deselected.
When the ambience is changed, the treble
and bass settings are reset.
Selecting an ambience imposes the treble and
bass settings, and vice versa. ►

Modify the treble and bass or ambience
settings to obtain the desired musical ambience.
When the balance settings are changed, the
distribution is deselected.
When the distribution setting is changed, the
balance settings are deselected.
Selecting a distribution setting imposes the
balance settings, and vice versa.
►

Modify the balance setting or the distribution
setting to obtain the desired sound quality
.
There is a difference in sound quality
between audio sources.
To allow for optimal listening quality, the sound
settings can be tailored to different audio
sources, which can generate audible differences
when changing source.
►
Check that the sound settings are appropriate
to the sources listened to. W
e recommend
setting the sound functions (Bass:, Treble:,
Balance) to the middle position, setting the
musical ambience to "None", setting loudness
correction to "Active" in USB mode and "Inactive"
in Radio mode.
►
In all cases, after applying sound settings,
adjust the volume level on the portable device (to
a high level) first.
Then adjust the volume level
on the audio system.
When the engine is off, the system switches
off after several minutes of use.
When the engine is switched off, the system's
operating time depends on the state of charge of
the battery. The switch-off is normal: the system
automatically goes into energy economy mode
and switches off to maintain an adequate charge
in the battery.
►

Start the vehicle’
s engine to increase the
charge of the battery.
The date and time cannot be set.
Setting of the date and time is only available
if the synchronisation with the satellites is
deactivated.
►
Settings menu / Options /
Time-Date setting.
Select the "Time" tab and deactivate the "GPS
synchronisation" (UTC).