2023 CITROEN C4 lock

165
Practical information
7It is therefore not possible to tow a trailer or
caravan.
Towing device with quickly detachable towball
Presentation
No tools are required to install or remove this
genuine towing device.


1. Carrier
2. Protective plug
3. Connection socket
4. Safety eye
5. Detachable towball
6. Locking/unlocking wheel
7. Security key lock
8. Label to note the key references


A. Locked position (the green marks are
opposite each other); the wheel is in contact
with the towball (no gap).
B. Unlocked position (red mark opposite the green mark); the wheel is no longer
in contact with the towball (gap of around
5
mm).
Affix the enclosed label in a clearly visible location, close to the carrier or in the
boot.
Trailers with LED lamps are not compatible with the wiring harness of this
device.
To ensure complete safety while driving with a Towing device , refer to the
corresponding section.
Before each use
Verify that the towball is correctly fitted,
checking the follow points:
–

The green mark on the wheel is in line with
the green mark on the towball.
–


The wheel is in contact with the towball
(position A

).
–

The security key lock is closed and the
key removed; the wheel can no longer be
operated.
–


The towball must not be able to move in
its carrier; test by attempting to shake it with
your hand.
If the towball is not locked, the trailer can
become detached - risk of an accident!
During use
Never release the locking system with a
trailer or load carrier on the towball.
Never exceed the maximum authorised
weight for the vehicle - the Gross Train
Weight or GTW.
Always comply with the maximum authorised
load on the towing device: if it is exceeded,
this device may become detached from the
vehicle - risk of an accident!
Before driving, check the headlamp height
adjustment and check that the lamps on the
trailer operate correctly.
For more information on Headlamp height
adjustment, refer to the corresponding
section.

166
Practical information
After use
When travelling without a trailer or
load carrier, remove the towball and fit the
protective plug into the carrier, to provide
clear visibility of the number plate and/or its
lighting.
Fitting the towball

► Below the rear bumper , remove the protective
plug 2 from the carrier 1.
►

Insert the end of the towball
5 into the carrier
1 and push it upwards; it will lock into position
automatically.


► The wheel 6 rotates a quarter turn anti-
clockwise; take care to keep your hands clear!


► Check that the mechanism has correctly
locked into place (position A
).
►

Close the lock 7

using the key.
►

Remove the key
. The key cannot be removed
while the lock is open.
►

Clip the cap onto the lock.

► Remove the protective cover from the
towball.
►

Attach the trailer to the towball.
►


Attach the cable on the trailer to the safety
eye

4 on the carrier.
►

Lower the connection socket 3

to put it in
position.
►

Insert the trailer plug and rotate it by a
quarter turn to connect it to the connection
socket

3 on the carrier.
Removing the towball
► Grasp the trailer's plug, perform a quarter
turn and pull to disconnect it from the connection
socket
3 on the carrier.
►

Lift the connection socket
3 to the right to
stow it away.
►

Detach the trailer's safety cable from the
safety eye

4 on the carrier.
►

Unhitch the trailer from the towball.
►


Replace the protective cover over the towball.

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.