2020 CITROEN C4 service

160
Practical information
Timing and accessory kits
The timing and accessory kits are used
from the time the engine is started until it
is switched off. It is normal for them to wear over
time.
A
faulty timing or accessory kit can damage
the engine, rendering it unusable. Observe the
recommended replacement frequency, stated in
distance travelled or time elapsed, whichever is
reached first.
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 combines 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 15 litres.
Its capacity allows a driving range of
approximately 4,000
miles (6,500 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 is immobilised.
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 device
required by law prevents the engine from
being restarted.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard and the vehicle starts
polluting the environment.
In the event of a confirmed SCR system
malfunction, it is essential to visit a CITROËN
dealer or a qualified workshop. After 685
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.
You can obtain AdBlue
® from a CITROËN dealer
or a qualified workshop, as well as service
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.

161
Practical information
7Precautions 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.
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
"Top up

AdBlue: Starting impossible" – it is
essential to add at least 5 litres.

176
In the event of a breakdown
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
the 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:

178
In the event of a breakdown
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.
When 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.

191
Touch screen BLUETOOTH audio system
10The audio settings are the same as the audio settings for the radio. For more
information on the " Audio settings", refer to
the corresponding section.
Information and advice
The system supports USB mass storage
devices, BlackBerry® devices or Apple® players
via the USB ports. The adapter cable is not
supplied.
Devices are managed using the audio system
controls.
Other devices, not recognised on connection,
must be connected to the auxiliary socket using
a jack cable (not supplied) or via Bluetooth
streaming, if compatible.
To protect the system, do not use a USB hub.
The audio system will only play audio files with
".wav", ".wma", ".aac", ".mp3", ".mp4", ".m4a",
".flac", ".ogg" file extensions and with a bit rate
of between 32 Kbps and 320 Kbps (300 Kbps
maximum for ".flac" files).
It also supports VBR (Variable Bit Rate) mode.
All ".wma" files must be standard WMA 9 files.
The supported sampling rates are 11, 22, 44 and
48 KHz.
To avoid reading and display problems, we
recommend choosing file names less than 20
characters long that do not contain any special
characters (e.g. “ ? .
; ù).
Use only USB memory sticks in FAT or FAT32
format (File Allocation Table).
We recommend using the original USB
cable for the portable device.
Telephone
Pairing a Bluetooth®
telephone
Up to 10 phones can be paired to the system.
Activate the Bluetooth function on the telephone
beforehand and ensure that it is "visible to all"
(telephone configuration).
To complete the pairing, whichever procedure is
used (from the telephone or from the system),
ensure that the code is the same in the system
and in the telephone.
The services available depend on the
network, the SIM card and the
compatibility of the Bluetooth devices used.
Check for services availability in the phone's
manual and with the operator.
The profiles compatible with the system are: HFP, OPP, PBAP, DID, A2DP,
AVRCP, SPP and PAN.
Go to the Brand's website for more information
(compatibility, additional help, etc.).
Procedure from the telephone
Select the name of the system in the list
of devices detected.
In the system, accept the connection request
from the telephone.
Procedure from the system
Press the Home button to access the
menus.
Select the "Telephone" menu.
Press "Manage connections".
The list of telephones detected is displayed.
Select the name of the telephone in the list.
The system offers to connect the telephone with
two profiles:
–

as "

Telephone": hands-free kit, telephone
only.
–

as "

Streaming": wireless playing of audio files
on the telephone.
The system cannot be connected to multiple telephones with the same profile.
No more than 2 phones can be connected
simultaneously ( 1 per profile).
The Bluetooth profiles chosen on the
phone have priority over the profiles
selected on the system.
If the pairing procedure fails, it is recommended
that you deactivate and then reactivate the
Bluetooth function on the telephone.

194
Touch screen BLUETOOTH audio system
I cannot find some radio stations in the list of
received stations.
The name of the radio station changes.
The station is no longer received or its name has
changed in the list.
Some radio stations send other information
in place of their name (the title of the song for
example).
The system interprets these details as the station
name.
►
Press the "
Radio Settings "
button then
select "Update list". The radio reception is
cut off while searching for available stations
(approximately 30
seconds).
Media
Playback of my USB memory stick starts only
after a very long wait (around 2 to 3 minutes).
Some files supplied with the memory stick may
greatly slow down access to reading the memory
stick (multiplication by 10 of the cataloguing
time).
►
Delete the files supplied with the memory
stick and limit the number of sub-folders in the
file structure on the memory stick.
Some characters in information about the
currently playing media are not displayed
correctly

.
The audio system is unable to process certain
types of character.
►

Use standard characters to name tracks and
folders.
Playback of streaming files does not start. The connected device does not automatically
launch playback.
►


Start playback from the device.
T
rack names and playing times are not
displayed on the audio streaming screen.
The Bluetooth profile does not allow the transfer
of this information.
Telephone
I cannot connect my Bluetooth telephone.
The telephone's Bluetooth function may be
switched off or the telephone may not be visible.
►

Check that the telephone has Bluetooth
switched on.
►


Check in the telephone settings that it is
"visible to all".
The Bluetooth telephone is not compatible with
the system.
►


Check the compatibility of the telephone on
the Brand's website (services).
The volume of the telephone connected in
Bluetooth mode is inaudible.
The volume depends on both the system and the
telephone.
Ambient noise affects the quality of the
telephone call.
►


Increase the volume of the audio system, to
maximum if required, and increase the volume of
the telephone if necessary

.
►

Reduce ambient noise (close windows,
reduce ventilation, slow down, etc.).
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.
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.
There is a difference in sound quality
between audio sources.
T

o 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.

201
MyCitroën Play
11confirm to go down through the menu to the
desired track.
The version of software in the audio system may
not be compatible with the generation of the
Apple
® player.
Information and advice
The system supports USB mass storage
devices, BlackBerry® devices or Apple® players
via the USB ports. The adapter cable is not
supplied.
Devices are managed using the audio system
controls.
Other devices, not recognised on connection,
must be connected via Bluetooth streaming, if
compatible.
To protect the system, do not use a USB hub.
The audio system will only play audio files with
".wav", ".wma", ".aac", ".ogg" and ".mp3" file
extensions, at bit rates between 32 Kbps and
320 Kbps.
It also supports VBR (Variable Bit Rate) mode.
No other file types (".mp4", etc.) can be read.
All ".wma" files must be standard WMA 9 files.
The supported sampling rates are 11, 22, 44 and
48 KHz.
To avoid reading and display problems, we
recommend choosing file names less than 20
characters long that do not contain any special
characters (e.g. “ ? .
; ù).
Use only USB memory sticks in FAT32 format
(File Allocation Table).
We recommend using the original USB
cable for the portable device.
Telephone
Pairing a Bluetooth®
telephone
The services available depend on the
network, the SIM card and the
compatibility of the Bluetooth devices used.
Consult the telephone user guide and the
service provider to check which services are
available.
The Bluetooth function must be activated and
the telephone configured as "Visible to all” (in the
telephone settings).
To complete the pairing, whichever procedure is
used (from the telephone or from the system),
ensure that the code is the same in the system
and in the telephone.
If the pairing procedure fails, we
recommend deactivating and then
reactivating the Bluetooth function on the
telephone.
Procedure from the telephone
Select the name of the system in the list
of detected devices.
In the system, accept the connection request
from the telephone.
Procedure from the system
Press Telephone to display the main
page.
Press "Bluetooth search".
The list of detected telephones is
displayed.
Select the name of the chosen telephone
in the list.
Connection sharing
The system offers to connect the telephone with
3 profiles:
–
"Telephone" (hands-free kit, telephone only),
–
“Streaming" (streaming: wireless playing of
audio files on the telephone),
–
"Mobile internet data ".
Select one or more profiles.
Press "OK" to confirm.
Depending on the type of telephone, you may by
prompted to accept the transfer of contacts and
messages.
The ability of the system to connect just one profile depends on the telephone.
All three profiles may connect by default.

207
MyCitroën Play
11► Activate the "RDS" function in the upper bar
to enable the system to check whether there is
a more powerful transmitter in the geographical
area.
The environment (hills, buildings, tunnels,
basement car parks, etc.) is blocking reception,
including in RDS mode.
This is a perfectly normal phenomenon, and is
not indicative of an audio system malfunction.
The aerial is missing or has been damaged
(for example while entering a car wash or
underground car park).
►

Have the aerial checked by a dealer
.
I cannot find some radio stations in the list of
received stations.
The name of the radio station changes.
The station is no longer received or its name has
changed in the list.
►

Press the round arrow on the "List" tab on the
"Radio" page.
Some radio stations send other information
in place of their name (the title of the song for
example).
The system interprets these details as the station
name.
►


Press the round arrow on the "List" tab on the
"Radio" page.
Media
Playback of my USB memory stick starts only
after a very long wait (around 2 to 3 minutes).
Some files supplied with the memory stick may
greatly slow down access to reading the memory stick (multiplication by 10 of the cataloguing
time).
►

Delete the files supplied with the memory
stick and limit the number of sub-folders in the
file structure on the memory stick.
Some characters in information about the
currently playing media are not displayed
correctly
.
The audio system is unable to process certain
types of character.
►
Use standard characters to name tracks and
folders.
Playback of streaming files does not start.
The connected device does not automatically
launch playback.
►

Start playback from the device.
T
rack names and playing times are not
displayed on the audio streaming screen.
The Bluetooth profile does not allow the transfer
of this information.
Telephone
I cannot connect my Bluetooth telephone.
The telephone's Bluetooth function may be
switched off or the device may not be visible.
►

Check that the telephone has Bluetooth
switched on.
►


Check in the telephone settings that it is
"visible to all".
The Bluetooth telephone is not compatible with
the system.
►


Check the compatibility of the telephone on
the Brand's website (services). Android

Auto and/or CarPlay do not work.
Android Auto and CarPlay may not activate if the
USB cables are of poor quality.
►
Use genuine USB cables to ensure
compatibility
.
Android Auto and/or CarPlay do not work.
Android Auto and CarPlay are not available in all
countries.
►
Check the Google
Android Auto or Apple
website to see which countries are supported.
The volume of the telephone connected in
Bluetooth mode is inaudible.
The volume depends on both the system and the
telephone.
►
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 ambient noise (close windows, turn
down ventilation, slow down, etc.).
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.
Settings
When the treble and bass settings are
changed, the ambience is deselected.