2021 CITROEN C3 AIRCROSS Temperature

133
Practical information
7Engine coolant
It is normal to top up this fluid between two services.
The check and top-up must only be done with
the engine cold.
A low level presents a risk of serious damage to
the engine.
The level of this fluid should be close to the
"MAX" mark but should never exceed it.
If the level is close to or below the " MIN” mark, it
is essential to top up.
When the engine is hot, the temperature of this
fluid is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.
Once the pressure has dropped, remove the cap
and top up to the required level.
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!
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a ready-to-use
mixture.
In winter (temperatures below zero), a liquid
containing an agent to prevent freezing must
be used which is appropriate for the prevailing
conditions, in order to protect the elements of the
system (pump, tank, ducts, jets, etc.).
Filling with pure water is prohibited under
all circumstances (risk of freezing,
limestone deposits, etc.).
Diesel fuel additive (Diesel
with particle filter)
On reaching the minimum level in the particle filter additive tank, this warning
lamp comes on fixed, accompanied by an
audible warning and a message warning that the
additive level is too low.
Topping up
This additive must be topped up without delay by
a CITROËN dealer or a qualified workshop.
AdBlue (BlueHDi)
An alert is triggered when the reserve level is
reached.
For more information on the AdBlue range
indicators, refer to the corresponding section.
To avoid the vehicle being immobilised in
accordance with regulations, you must top up the
AdBlue tank.
For more information on the Supply of AdBlue,
refer to the corresponding section.
Checks
Unless otherwise indicated, check these
components in accordance with the
manufacturer's service schedule and according
to your engine.
Otherwise, have them checked by a CITROËN
dealer or a qualified workshop.
Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation of
components as important as those in the
braking system, CITROËN selects and offers
very specific products.
12 V battery
The battery does not require any maintenance.
However, check regularly that the terminals
are correctly tightened (versions without quick
release terminals) and that the connections are
clean.

136
Practical information
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.
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 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
a quarter turn anti-clockwise.
Filling up
► 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: 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.

138
Practical information
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 washer to
clean the interior.
Liquids carried in cups or other open
containers can spill, presenting a risk of
damage if they come into contact with the
controls in the dashboard and centre console.
Take care!
Bodywork
High-gloss paint
Do not use abrasive products or
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 sponge 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 at a temperature
between 25°C and 40°C.
Sweep the jet of water across the surface to
be cleaned, perpendicular to it.
Rinse the vehicle with demineralised water.

146
In the event of a breakdown
Refitting the lamp unitsPerform the operations in the reverse
order to dismantling.
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.
Light-emitting diode (LED)
headlamps and lamps
Depending on version, the affected types of
headlamps / lamps are:
– Daytime running lamps / sidelamps.– Direction indicator side repeaters.– Third brake lamp.– Number plate lamps.
Putting the spare wheel
back in place
The punctured wheel cannot be placed in
the boot under the floor.


► 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.► Tighten the central nut sufficiently to retain the wheel correctly.► Put the tool box back in place in the middle of the wheel and clip it in place.► Clip the tool storage box or put the polystyrene cover back in place (depending on
version).
If there is no wheel in the well, the
fastening device (nut and bolt) cannot be
refitted.
After changing a wheel

With a "space-saver" type spare wheel
Deactivate certain driving aid functions
(Active Safety Brake, Adaptive cruise control,
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.

155
In the event of a breakdown
8At the battery, it is only necessary to disconnect
the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal

► Raise the lever A fully to release the clamp
B.
► Remove the clamp B by lifting it off.
Reconnecting the (+) terminal


► Raise the lever A fully.► Refit the open clamp B on the (+) terminal.► Push the clamp B fully down.► Lower the lever A to lock the clamp B.
Do not force the lever as locking will not
be possible if the clamp is not positioned
correctly; start the procedure again.
Following reconnection of the battery
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, in order to enable the electronic systems
to initialise.
For right-hand drive vehicles, when the
total distance recorder has reached 37
miles (60 km), it is necessary to wait approx.
15 minutes before starting the engine.
However, if minor problems persist following
this operation, contact a CITROËN dealer or a
qualified workshop.
Referring to the corresponding section, you must
yourself reinitialise or reset certain systems,
such as:
– the key with remote control or electronic key (depending on version),– the sunroof and its electric blind,– the electric windows,– the date and time,– the 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 of
immobilisation of the vehicle, a period which
depends on the exterior temperature and the
state of charge of the battery (up to about 8
hours).

158
Technical data
Engine technical data and
towed loads
Engines
The engine specifications (capacity, max. power,
max. speed, energy, CO
2 emissions, etc.)
associated with your vehicle are indicated on
the registration document, as well as in sales
brochures.
These characteristics correspond to the values
type-approved on a test bed, under conditions
defined in European legislation (Directive
1999/99/EC).
For more information, contact a CITROËN dealer
or a qualified workshop.
Weights and towed loads
The weights and towed loads relating to
your vehicle are indicated on the registration
document, as well as in sales brochures.
These values are also indicated on the
manufacturer's plate or label.
For more information, contact a CITROËN dealer
or a qualified workshop.
The GTW values and the towed loads listed are
valid for a maximum altitude of 1,000 metres.
The towed load must be reduced by steps of
10% for each additional 1,000 metres.
The maximum authorised nose weight
corresponds to the weight permitted on the
towball.
GTW: Gross train weight.
When exterior temperatures are high, the
vehicle performance may be limited in
order to protect the engine. When the exterior
temperature is higher than 37°C, limit the
towed weight.
Towing using a lightly loaded vehicle can adversely affect roadholding.
Braking distances are increased when towing
a trailer.
When using a vehicle to tow, never exceed a
speed of approximately 60 mph (100 km/h)
(observe the local legislation in force).
If the exterior temperature is high, it is
recommended that the engine is allowed
to idle for 1 to 2 minutes after the vehicle
comes to a stop, to facilitate its cooling.
Engines and towed loads - PETROL
Engine PureTech 110 S&SPureTech 110 S&S
Gearbox Manual 5-speed
(BVM5)Automatic
6-speed (EAT6)Manual 6-speed
(BVM6)Automatic
6-speed (EAT6)Manual 6-speed
(BVM6)
Code EB2DT
(Euro 6.1)EB2ADT(Euro 6.2)EB2ADT(Euro 6.3)
Model codes: 2R...HNZBHNZWHNPJHNPXHNPM
Cubic capacity (cm
3) 1,1991,1991,1991,1991,199
Max. power: EC standard (kW) 8181818181
Fuel UnleadedUnleadedUnleadedUnleadedUnleaded
Braked trailer (within the GTW limit) on a
10 or 12% slope (kg) 840
840840840840
Unbraked trailer (kg) 600600600600600
Maximum authorised nose weight (kg) 6565656565

173
Bluetooth® audio system
10Interactive voice response
From the contextual menu, select "DTMF
tones" and confirm to use the digital
keypad to navigate in the interactive voice
response menu.
Confirm with OK.
Consultation call
From the contextual menu, select
"Switch" and validate to return to a call
left on hold.
Confirm with OK.
Directory
To access the directory, press and hold SRC/TEL.
Select "Directory " to see the list of
contacts.
Confirm with OK.
To modify the contacts saved in the
system, press MENU then select
"Telephone" and confirm.
Select "Directory management " and confirm.
You can:
– "Consult an entry",– "Delete an entry",– "Delete all entries".The system accesses the telephone's contacts directory, depending on its
compatibility, and while it is connected via
Bluetooth.
With certain telephones connected by Bluetooth you can send a contact to the
directory of the audio system.
Contacts imported in this way are saved in a
permanent directory visible to all, whatever the
telephone connected.
The menu for the directory is not accessible if it
is empty.
Voice recognition
This function allows you to use your
smartphone's voice recognition via the system.
To start voice recognition, depending on the type
of steering mounted controls:
Make a long press on the end of the lighting
control stalk.
OR
Press this button.
Voice recognition requires the use of a
compatible smartphone first connected to
the vehicle by Bluetooth.
Frequently asked
questions
The following information groups together the answers to the most frequently asked questions
concerning your audio system. With the engine off, the audio system
switches off after a few minutes of use.
When the engine is switched off, the audio
system operating time depends on the state of
charge of the battery.
The switch-off is normal: the audio system
switches to economy mode and switches off to
avoid discharging the vehicle's battery.
► Start the vehicle’
s engine to increase the charge of the battery.
The message "the audio system is
overheated" is displayed onscreen.
To protect the installation if the ambient
temperature is too high, the audio system
switches to an automatic thermal protection
mode, in which the volume may be decreased or
the CD player stopped.
► Switch the audio system off for a few minutes to allow the system to cool.
Radio
There is a difference in sound quality
between the different audio sources (radio,
CD, etc.).
For optimal listening quality, the audio settings
(Volume, Bass, Treble, Ambience and Loudness)
can be adjusted to different audio sources,
resulting in audible differences when switching
between sources (radio, CD, etc.).
► Check that the audio settings (V olume, Bass, Treble, Ambience and Loudness) are appropriate
to the sources being listened to. We recommend
setting the audio functions (Bass, Treble, Fr-Re

177
CITROËN Connect Radio
11– FM/DAB/AM radio stations (depending on equipment).– Telephone connected via Bluetooth and Bluetooth multimedia broadcast (streaming).– USB Memory stick.– Media player connected via the auxiliary socket (depending on equipment).

In the "Settings" menu, it is possible to
create a profile for an individual or for a
group of people with shared interests, and
configure a wide range of settings (radio
presets, audio settings, ambiences, etc.).
Settings are applied automatically.
In very hot conditions, the volume may
be limited to protect the system. It may
enter standby mode (with the screen and
sound off) for 5 minutes or more.
The system will resume normal operation
when the temperature in the passenger
compartment has dropped.
Steering mounted controls
Steering mounted controls -
Type 1

Radio:Select the previous/next preset radio
station.
Select the previous/next item in a menu or a list.
Media:
Select the previous/next track.
Select the previous/next item in a menu or a list.
Radio:Short press: display the list of radio
stations.
Long press: update the list.
Media:
Short press: display the list of folders.
Long press: display the available sorting options.
Change audio source (radio; USB; AUX if equipment connected; CD; streaming).
Confirm a selection.
Increase volume.
Decrease volume.
Mute/restore sound by simultaneously pressing the increase and decrease
volume buttons.
Steering mounted controls -
Type 2

Voice commands:
This control is located on the steering
wheel or at the end of the lighting control stalk
(depending on equipment).
Short press, smartphone voice commands via
the system.
Increase volume.
Decrease volume.
Mute by pressing the volume increase
and decrease buttons simultaneously
(depending on equipment).
Restore the sound by pressing one of the two
volume buttons.
Media (short press): change the
multimedia source.
Telephone (short press): start telephone
call.
Call in progress (short press): access
telephone menu.
Telephone (long press): reject an incoming call,
end call; when no call is in progress, access
telephone menu.
Radio (rotate): automatic search for the
previous/next station.
Media (rotate): previous/next track, move in a
list.