lock CITROEN C4 2022 Workshop Manual

167
Practical information
7► Remove the cap from the lock and press it
onto the head of the key .


► Insert the key into the lock 7.
► Open the lock using the key .


► Hold the towball 5 firmly in one hand; using
the other hand, pull and turn the wheel 6 fully in
a clockwise direction until it stops; do not release
the wheel.
►

Extract the towball from the base of its
carrier

1.
► Release the wheel; it automatically locks in
the unlocked position (position B
).


► Replace the protective plug 2 into the
carrier 1.
►

Stow the towball in its bag to protect it from
knocks and dirt.
Maintenance
Correct operation is only possible if the towball
and its carrier are kept clean.
Before cleaning the vehicle with a high-pressure
jet wash, the towball must be removed and the
protective plug fitted to the carrier.
Work on the towing device
Contact a CITROËN dealer or a qualified
workshop.
Roof bars
As a safety measure and to avoid damaging the roof, it is essential to use
transverse roof bars approved for your
vehicle.
Observe the instructions on fitting and use
contained in the guide supplied with the roof
bars.
Maximum load distributed over the
transverse roof bars, for a loading height
not exceeding 40 cm (except bicycle carrier):
80

kg.
As this value may change, please verify the
maximum load quoted in the guide supplied
with the roof bars.
If the height exceeds 40 cm, adapt the speed
of the vehicle to the profile of the road to
avoid damaging the roof bars and the fixings
on the vehicle.
Be sure to refer to national legislation in order
to comply with the regulations for transporting
objects that are longer than the vehicle.
Recommendations
Distribute the load uniformly, taking care
to avoid overloading one of the sides.
Arrange the heaviest part of the load as close
as possible to the roof.
Secure the load firmly.

170
Practical information
Opening
► Open the left-hand front door.



► Pull the interior release lever , located at the
bottom of the door frame, towards you.


► Lift the exterior safety catch and raise the
bonnet.
►

Unclip the stay from its housing and place it
in the support slot to hold the bonnet open.
Closing
► Hold the bonnet and pull out the stay from the
support slot.
► Clip the stay in its housing.
► Lower the bonnet and release it near the end
of its travel.
►

Pull on the bonnet to check that it is locked
correctly

.
Because of the presence of electrical
equipment under the bonnet, it is strongly
recommended that exposure to water (rain,
washing, etc.) be limited.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following elements may
vary:
–

Air filter
.
–

Engine oil dipstick.
–


Engine oil filler cap.
Petrol engine

Diesel engine

1. Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery/Fuses
5. Fusebox
6. Air filter
7. Engine oil filler cap
8. Engine oil dipstick
Diesel fuel system
This system is under very high pressure.
All work must be carried out only by a
CITROËN dealer or a qualified workshop

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.

177
Practical information
7The system only registers AdBlue®
intermediate top-ups of 5

litres or more.
If the AdBlue® tank is completely empty
– which is confirmed by the message
“Top up AdBlue: Starting impossible ” – it is
essential to add at least 10
litres.
Top-up detection may not be instantaneous
after addition. It may take a few minutes of
driving before the top-up detection is effective.
Changing to free-wheeling
In certain situations, it is necessary to put the
vehicle into free-wheeling mode (e.g. towing, on
a rolling road, automatic car wash (Wash mode),
rail or sea transport).
The procedure varies according to the type of
gearbox and parking brake.
Never leave the vehicle unattended with
the vehicle into free-wheeling mode.
Keyless Entry and Start
You must not depress the brake pedal
while switching the ignition on again, then
switching it off. If you do, the engine will start,
requiring you to restart the procedure.
With a manual gearbox and
electric parking brake
/
To release them
► With the engine running and while depressing
the brake pedal, move the gear selector to the
neutral position.
►

While depressing the brake pedal, switch off
the engine.
►


Release the brake pedal, then switch on the
ignition.
►


While depressing the brake pedal, press the
control to release the parking brake.
►


Release the brake pedal, then switch off the
ignition.
Reverting to normal operation
► While depressing the brake pedal, restart the
engine and apply the parking brake.
With EAT8 automatic
gearbox or drive selector
and electric parking brake
/
Release procedure
► With the vehicle stationary and the engine
running, depress the brake pedal and select
mode
N.
Within 5 seconds:
► Depress and hold the brake pedal, then
observe this order: switch off the engine and
move the push selector forwards or backwards.
►

Release the brake pedal, then switch on the
ignition.
►


Place your foot on the brake and press the
electric parking brake control to release it.
►


Release the brake pedal, then switch off the
ignition.
A message is displayed on the instrument panel to confirm the unlocking
of the wheels for 15
minutes.
After 15 minutes or reverting to normal
operation
► While depressing the brake pedal, restart the
engine and select mode P .
Advice on care and maintenance
General recommendations
Observe the following recommendations to avoid
damaging the vehicle.

178
Practical information
Exterior
Never use a high-pressure jet wash in
the engine compartment - risk of
damaging the electrical components!
Do not wash the vehicle in bright sunshine or
extremely cold conditions.
When washing the vehicle in an
automatic roller-brush car wash, be sure
to lock the doors and, depending on version,
move the electronic key away.
When using a pressure washer, keep the jet
nozzle at a minimum distance of 30 cm from
the vehicle (particularly when cleaning areas
containing chipped paint, sensors or seals).
Promptly clean up any stains containing
chemicals liable to damage the vehicle's
paintwork (including tree resin, bird
droppings, insect secretions, pollen and tar).
Depending on the environment, clean the
vehicle frequently to remove salty deposits
(in coastal areas), soot (in industrial areas)
and mud/salts (in wet or cold areas). These
substances can be highly corrosive.
Contact a CITROËN dealer or a qualified
workshop for advice on removing stubborn
stains requiring special products (such as tar
or insect removers).
Preferably, have paint touch-ups performed
by a CITROËN dealer or a qualified
workshop.
Interior
When washing the vehicle, never use a
water hose or high-pressure jet to clean
the interior.
Liquids carried in cups or other open
containers can spill, presenting a risk of
damage to the instruments and controls and
the controls located on the centre console. Be
vigilant!
To clean instrument panels, touch screens
or other displays, wipe gently with a soft,
dry cloth. Do not use products (e.g. alcohol,
disinfectant) or soapy water directly on these
surfaces - risk of damage!
Bodywork
High-gloss paint
Do not use abrasive products, solvents,
petrol or oil to clean the bodywork.
Never use an abrasive sponge to clean
stubborn stains - risk of scratching the
paintwork!
Do not apply polish in strong sunshine, or to
plastic or rubber parts.
Use a soft cloth and soapy water or a pH
neutral product.
Gently wipe the bodywork with a clean
microfibre cloth.
Apply polish with the vehicle clean and dry.
Comply with the instructions for use stated on
the product.
Decals
(Depending on version)
Do not use a high-pressure washer to
clean the vehicle - risk of damaging or
detaching the decals!
Use a high-flow hose (temperature
between 25°C and 40°C).
Place the jet of water perpendicular to the
surface to be cleaned.
Rinse the vehicle with demineralised water.
Textile
The dashboard, door panels and seats may
contain parts made of textile material.
Maintenance
Do not use aggressive cleaning products
(e.g. alcohol, solvent or ammonia).
Do not use steam-cleaning systems - risk of
affecting the adhesion of the fabrics!
Remove dust from the textile parts
regularly with a dry cloth, soft brush or
vacuum cleaner
.
Rub down the
textile parts once per year with
a clean, damp cloth. After leaving overnight to
dry, brush with a soft-bristled brush.

185
In the event of a breakdown
8► 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.
Removing a wheel
Parking the vehicle
Immobilise the vehicle where it does
not obstruct traffic: the ground must be level,
stable and non-slippery.
With a manual gearbox, engage first gear
to lock the wheels, apply the parking brake,
unless it is set to automatic mode, and switch
off the ignition.
With an automatic gearbox, select mode

P

to lock the wheels, apply the parking brake,
unless it is set to automatic mode, and switch
off the ignition.
Check that the parking brake indicator lamps
on the instrument panel are on fixed.
The occupants must get out of the vehicle
and wait where they are safe.
If necessary, place a chock under the wheel
diagonally opposite the wheel to be changed.
Never go underneath a vehicle raised using a
jack; use an axle stand.
Wheel with wheel trim
When removing the wheel , first remove
the wheel trim by pulling at the valve aperture
using the wheelbrace.
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.
Wheel trims are identified by a "LEFT" mark
on the left-hand side and a "RIGHT" mark
on the right-hand side. Do not reverse these
when removing/refitting the wheel.




► To remove the wheel bolt cover on each of
the bolts, use tool 7 (alloy wheels).
►

Fit security socket
2 on wheelbrace
5
to
slacken the security bolt.
►

Slacken the other bolts using the
wheelbrace


5
only.
Never use an impact wrench on the
security bolt socket.


► Place the foot of jack 6 on the ground and
ensure that it is directly below the front A or
rear
B jacking point on the underbody, whichever
is closest to the wheel to be changed.


► Extend jack 6 until its head comes into
contact with jacking point A or B; contact area A
or B on the vehicle must be properly inserted
into the central part of the head of the jack.

189
In the event of a breakdown
8that one of the bulbs on the corresponding
side has failed.


► Turn the connector a quarter turn
anti-clockwise.
►
Pull the bulb connector
.
►

Remove the bulb and replace it.
Amber-coloured bulbs must be replaced by bulbs with identical specifications and
colour.
Foglamps (P21W)


For access, pass your hand under the bumper.
► Press the locking clip and disconnect the
connector
.
►

T
urn the bulb holder a quarter turn
anti-clockwise.
►

Remove the bulb holder
.
►

Remove the bulb and replace it.
Rear lamps
C4

1. Sidelamps (LED)
2. Brake lamps (P21W)
3. Reversing lamps (W16W)
4. Direction indicators (WY16W)
C4 X


1. Sidelamps (LED)
2. Brake lamps (LED)

190
In the event of a breakdown
3.Direction indicators (LED)
4. Foglamp (P21W) or Reversing lamp (W16W)
Changing bulbs
C4
The bulbs are changed from inside the boot.
►

Open the boot.

► Remove the access flap on the
corresponding side trim: •

Press each of the notches in the upper part
of the flap to unclip it.
•


T
ilt the flap and its support then extract the
assembly.
►

Disconnect the lamp unit connector
.
►

Unlock the nut using a 10 mm pipe wrench
then unscrew and remove it. Be careful not to
drop it.
►


Dismantle the lamp unit and carefully extract
it, pulling it straight towards the outside.


► Unclip the bulb holder and remove it. Be
careful not to disconnect the wiring harness.
►

For the brake lamp, turn the bulb a quarter
turn and replace it.
►


For the reversing lamp and direction
indicator

, pull the bulb out and replace it.
Make sure to engage the lamp unit in its
guides while keeping it in line with the
vehicle.
Tighten sufficiently to ensure sealing, but
without damaging the lamp unit.
Foglamp (P21W)
C4

For access, pass your hand under the bumper
on the left-hand side.
►

T
urn the bulb holder a quarter turn to the left
and pull it out.
►

T
urn the bulb a quarter turn to the left and
pull it out.
►

Replace the bulb.

194
In the event of a breakdown
► Switch off all electricity-consuming devices
(audio system, wipers, lamps, etc.).
►

Switch off the ignition and wait for 4
minutes.
After accessing the battery, it is only necessary
to disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal

► Depending on equipment, lift the plastic cover
on the (+) terminal.
►

Raise lever

A
fully to release clamp
B
.
►

Remove clamp

B
by lifting it off.
Reconnecting the (+) terminal

► Raise lever A fully.
► Refit open clamp B on the (+) terminal.
►

Push clamp
B fully down.
►

Lower lever

A
to lock clamp B.
►

Depending on equipment, lower the plastic
cover on the

(+) terminal.
Do not force the lever when pressing on
it, as if the clamp is not positioned
correctly, locking will then not be possible.
Start the procedure again.
Following reconnection
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, to enable the electronic systems to
initialise.
If minor problems nevertheless persist following
this operation, contact a CITROËN dealer or a
qualified workshop.
Referring to the relevant section, reinitialise
certain equipment:
–

Remote control key or electronic key
(depending on version).
–

Sunroof.
–

Electric windows.
–


Date and time.
–


Preset radio stations.
The Stop & Start system may not be operational during the trip following the
first engine start.
In this case, the system will only be available
again after a continuous period with the
vehicle immobilised, the duration of which
depends on the exterior temperature and the
state of charge of the battery (up to about 8
hours).
Towing the vehicle
General recommendations
Observe the legislation in force in the
country where you are driving.
Ensure that the weight of the towing vehicle is
higher than that of the towed vehicle.
The driver must remain at the wheel of the
towed vehicle and must have a valid driving
licence.

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).