2023 CITROEN C4 run flat

50
Ease of use and comfort
► Lower the head restraints.
► If necessary , move the front seats forward.
►

Check
that no person or object might interfere
with the folding of the backrests (e.g.
clothing,
luggage).


► Press the backrest release grip 1 .
► Guide the backrest 2 down to the horizontal
position.
When the backrest is released, the red
indicator in the release grip is visible.
Repositioning the backrests
First check that the outer seat belts are
lying vertically flat alongside the backrest
latching rings.


► Put the backrest 2 in the upright position and
push it firmly to latch it home.
►

Check that the red indicator is no longer
visible in the release grip 1

.
►

Ensure that the outer seat belts were not
trapped during the operation.
Please note: an incorrectly latched
backrest compromises the safety of
passengers in the event of sudden braking or
an accident.
The contents of the boot may be thrown
forwards - risk of serious injury!
Heated seats

The control knobs for each side seat are located
at the rear of the centre console.
►

T
urn the corresponding knob to switch on and
select a setting: •

0 = off.
•


1 = low
.
•

2 = medium.
•


3 = high.
The function is active only with the engine
running and when the outside temperature is
below 20°C.
Do not use the function when the seat
is not occupied.
Reduce the heating intensity as soon as
possible.
When the seat and passenger compartment
have reached a satisfactory temperature,
switch the function off; reducing electrical

63
Ease of use and comfort
3– With the ignition off, approximately 10 minutes.
– In energy saving mode, approximately 30
seconds.
–

With the engine running, unlimited.
When the front courtesy lamp is in the
"Permanent lighting" position, the rear
courtesy lamp also comes on, unless it is in
the "Permanently off" position.
To switch off the rear courtesy lamp, put it in
the "Permanently off" position.
Reading lamps
► With the ignition on, operate the
corresponding switch.
Do not place anything against the
courtesy lamps.
Interior ambient lighting
The interior ambient lighting casts soft lighting in
the passenger compartment, both day and night.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
Activation/deactivation and adjustment of the brightness are set via the Driving
touch screen menu.
With MyCitroën Drive
Activation/deactivation and adjustment of the brightness are set via the Vehicle
touch screen menu.
With MyCitroën Drive Plus
Activation/deactivation and adjustment of the brightness are set via the Settings >
Brightness touch screen application.
Boot fittings
C4

C4 X

1. Boot lamp
2.Stowing rings
3. Boot carpet or 2-position boot floor
4. Storage well
5. Side storage boxes
The stowing rings are designed to secure
luggage using different types of retaining
nets.
These retaining nets are available as an
accessory.
For more information, contact a CITROËN
dealer or a qualified workshop.
2-position boot floor
This two-position floor allows the boot volume to
be optimised using the lateral stops located on
the sides:
–

High position ( 100

kg max.): to obtain a flat
floor up to the front seats, when the rear seats
are folded down.
–

Low position ( 150

kg max.): maximum boot
volume.
On certain versions, the adjustable boot
floor cannot be fitted in the low position.
To change the height:
►

Lift and pull the floor towards you using its
central handle, then use the lateral stops to
move it.
►


Push the floor all the way forwards to place it
in the desired position.

169
Practical information
7continue to use functions such as the audio and
telematics system, dipped beam headlamps or
courtesy lamps.
Selecting the mode
A confirmation message is displayed when
energy economy mode is entered, and the active
functions are placed on standby.
If a telephone call is in progress at the
time, it will be maintained for around 10
minutes via the audio system’s hands-free
system.
Exiting the mode
These functions are automatically reactivated the
next time the vehicle is used.
To restore the use of these functions
immediately, start the engine and let it run:
–

For less than 10 minutes, to use the
equipment for approximately 5 minutes.
–


For more than 10 minutes, to use the
equipment for approximately 30 minutes.
Let the engine run for the specified duration to
ensure that the battery charge is sufficient.
T

o recharge the battery, avoid repeatedly or
continuously restarting the engine.
A flat battery prevents the engine from starting.
For more information on the 12
V battery/
Accessories battery /, refer to the
corresponding section.
Load reduction mode
This system manages the use of certain
functions according to the level of charge
remaining in the battery.
When the vehicle is being driven, the load
reduction function temporarily deactivates certain
functions, such as the air conditioning and the
heated rear screen.
The deactivated functions are reactivated
automatically as soon as conditions permit.
Bonnet
Stop & Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of the engine restarting automatically.
Take care with objects or clothing that could
be caught in the blades of the cooling fan
or in certain moving components - risk of
strangulation and serious injury!
Electric motor
Take care with objects or clothing that
could be caught in the blades of the cooling
fan or in certain moving components - risk of
strangulation and serious injury!
Before carrying out any work under the
bonnet, you must switch off the ignition, check
that the READY indicator lamp is off on the
instrument panel and disconnect the nozzle
from the charging connector if it is connected.
The location of the interior bonnet release lever prevents the bonnet being
opened when the left-hand front door is
closed.
When the engine is hot, handle the
exterior safety catch and the bonnet stay
with care (risk of burns), using the protected
area.
When the bonnet is open, take care not to
damage the safety catch.
Do not open the bonnet under very windy
conditions.
Cooling of the engine when stopped
The engine cooling fan may start after
the engine has been switched off.
Take care with objects or clothing that
could be caught in the blades of the fan!

176
Practical information
stations equipped with AdBlue® pumps specially
designed for passenger vehicles.
Recommendations on storage
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 at room temperature.
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 so cannot be poured
into the tank. Park the vehicle in a warmer area
for a few hours to allow the top-up to be carried
out.
Never pour the 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, inserting the key
into the ignition switch, or bringing the
key for the "Keyless Entry and Start"
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 Start, press the
"

START/STOP" button to switch off the engine.


► Turn the blue cap of the AdBlue® tank anti-
clockwise and remove it.
►

With a container of

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

192
In the event of a breakdown
Automatic gearbox
Never try to start the engine by pushing
the vehicle.
Electric motor
Flat accessory battery
It is no longer possible to start the motor
or recharge the traction battery.
Precautions before working on the
accessory battery
Select mode
P, switch off the ignition, check
that the instrument panel is off and that the
vehicle is not being charged.
Jump-starting another vehicle
Do not use the accessory battery to
jump-start another vehicle or to charge
another vehicle's battery.
Symbols
No sparks or naked flames, no smoking.
Always protect your eyes. Explosive gases can cause blindness and injury.
Keep the vehicle's battery out of the reach
of children.
The vehicle's battery contains sulphuric acid which can make you go blind or
cause severe burns.
For more information, refer to the
handbook.
Explosive gases can be present close to
the battery.
Accessing the battery
The battery is located under the bonnet.

For access to the (+) terminal:
► Release the bonnet by pulling the internal
release lever
, then the external safety catch.
►

Raise the bonnet.
(+)

Positive terminal with a quick-release
terminal.
(-) Negative terminal.
Starting using another
battery
If the vehicle's battery is flat, the engine can be
started using a backup battery (either external or
from another vehicle) and jump leads or using a
battery booster.
Never start the engine by connecting a
battery charger.
Never use a 24
V or higher battery booster.
Check beforehand that the backup 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 electricity-consuming equipment
on both vehicles (audio system, wipers,
lighting, etc.).
Make sure that the jump leads are well away
from the engine’s moving parts (fan, belt,
etc.).
Do not disconnect the (+) terminal while the
engine is running.


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

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

A (at the metal elbow), then to the
(+) terminal of the backup battery
B or of the
booster.
►

Connect one end of the green or black cable
to the (-) terminal of the backup battery

B or of

193
In the event of a breakdown
8the booster (or to an earth point on the assisting
vehicle).
►
Connect the other end of the green or black
cable to the (-) terminal of flat battery

A.
►

Start the engine on the assisting vehicle 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 immediately

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

W
ait for it to return to idle.
►

Disconnect the jump leads in reverse order.
►


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


Allow the engine to run for at least
30

minutes, with the vehicle stationary, so that
the battery reaches an adequate state of charge.
Driving immediately without having
reached a sufficient level of charge may
affect some of the vehicle's functions (e.g.
Stop & Start).
Charging the battery using a
battery charger
For optimum service life of the battery, it is
essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the battery:
– When 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 the ignition off.
►


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 the (-) terminal
of battery

A.
►

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

before disconnecting the cables
from battery A.
If this label is present, use only a 12 V
charger to avoid causing irreversible
damage to the electrical components.
24V
12V
Disconnecting/reconnecting
the battery
In order to maintain an adequate state of
charge for starting the engine, we recommend
disconnecting the battery if the vehicle is to be
unused for an extended period.
Before disconnecting the battery:
►

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

195
In the event of a breakdown
8When towing a vehicle with all four wheels on
the ground, always use an approved towing
arm; rope and straps are prohibited.
The towing vehicle must move off gently.
When the vehicle is towed with its engine
off, there is no longer braking and steering
assistance.
A professional towing service must be
called if:
–

Broken down on a motorway or main road.
– Not possible to put the gearbox into neutral,
unlock the steering, or release the parking
brake.
–

Not possible to tow a vehicle with an
automatic gearbox, with the engine running.
–


T
owing with only two wheels on the ground.
–

Four-wheel drive vehicle.
–


No approved towbar available.
Before towing the vehicle, it is essential
to put the vehicle in free-wheeling mode.
For more information on Free-wheeling, refer
to the corresponding section.
Electric motor
An electric vehicle cannot under any
circumstances be used to tow another
vehicle.
However, it may be used, for example, to exit
a rut.
Towing constraints
Type of vehicle
(engine/gearbox) Front wheels on the
ground Rear wheels on the
ground Flatbed
4 wheels on the ground
with towbar
Internal combustion/Manual


Internal combustion/Automatic

Electric

In case of battery or electric parking brake failure, it is essential to call a p
rofessional using flatbed recovery vehicles (excluding manual gearbox).