2021 CITROEN C3 AIRCROSS air condition

123
Practical information
7Compatibility of fuels
Petrol fuels conforming to the EN228 standard
containing up to 5% and 10% ethanol
respectively.

Diesel fuels conforming to the EN590, EN16734
and EN16709 standards and containing up to
7%, 10%, 20% and 30% fatty acid methyl ester
respectively. The use of B20 or B30 fuels, even
occasionally, imposes special maintenance
conditions referred to as "Arduous conditions".

Paraffinic Diesel fuel conforming to the EN15940
standard.
The use of any other type of (bio) fuel (vegetable or animal oils, pure or diluted,
domestic fuel, etc.) is strictly prohibited (risk
of damage to the engine and fuel system).
The only fuel additives authorised for use are those that meet the B715001 (petrol)
or B715000 (Diesel) standards.
Diesel at low temperature
At temperatures below 0 °C (+32 °F), the formation of paraffins in summer-type Diesel fuels could prevent the engine from operating
correctly. In these temperature conditions, use
winter-type Diesel fuel and keep the fuel tank
more than 50 % full.At temperatures below -15 °C (+5 °F) to avoid problems starting, it is best to park the vehicle
under shelter (heated garage).
Travelling abroad
Certain fuels could damage your vehicle’s
engine.
In certain countries, the use of a particular
fuel may be required (specific octane rating,
specific trade name, etc.) to ensure correct
operation of the engine.
For all additional information, consult a dealer.
Refuelling
Fuel tank capacity: approximately 45 litres.
Reserve level: approximately 5 litres.
Low fuel level
/2
1 1When the low fuel level is reached, one of these warning lamps comes
on on the instrument panel, accompanied by an
onscreen message and an audible signal. When
it first comes on, about 5 litres of fuel remain.
Until sufficient fuel is added, this warning lamp
appears every time the ignition is switched on,
accompanied by an onscreen message and
an audible signal. When driving, this message
and audible signal are repeated with increasing
frequency as the fuel level drops towards 0.
You must refuel as soon as possible to avoid
running out of fuel.
For more information on Running out of fuel
(Diesel), refer to the corresponding section.
Stop & Start
Never refuel with the engine in STOP
mode; you must switch off the ignition.
Refuelling
Additions of fuel must be of at least 5 litres, in
order to be registered by the fuel gauge.
Opening the filler cap may create a noise caused
by an inrush of air. This vacuum is entirely
normal, resulting from the sealing of the fuel
system.
To refuel in complete safety:
► You must switch off the engine.

128
Practical information
► Refit protective plug 2 to carrier 1.► Carefully stow the towball in its bag away 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.
Apply the label provided to a clearly visible area, close to the carrier or in the
boot.
Go to a CITROËN dealer or a qualified
workshop for any work on the towbar system.
Towing device
Load distribution► Distribute the load in the trailer so that the heaviest items are as close as possible to the
axle, and the nose weight approaches the
maximum permitted without exceeding it.
Air density decreases with altitude, thus reducing
engine performance. The maximum load which
can be towed must be reduced by 10% per
1,000 metres of altitude.
Use towing devices and their genuine
wiring harnesses approved by CITROËN.
It is recommended that the installation be
performed by a CITROËN dealer or a
qualified workshop.
If not fitted by a CITROËN dealer, it
must still be fitted in accordance with the
manufacturer's instructions.
Certain driving or manoeuvring aid functions
are automatically deactivated if an approved
towing system is used.
Observe the maximum authorised
towable weight, indicated on the vehicle's
registration certificate, the manufacturer's
label as well as in the Technical data section
of this guide.
Complying with the maximum authorised
nose weight (towball) also includes the
use of accessories (bicycle carriers, tow
boxes, etc.).
Observe the legislation in force in the
country where you are driving.
Load reduction mode
System which 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 air conditioning, heated rear
screen, etc.
The deactivated functions are reactivated
automatically as soon as conditions permit.
Energy economy mode
This system manages the duration of use of
certain functions, in order to conserve a sufficient
level of charge in the battery with the ignition off.
After switching off the engine, you can still
use functions such as the audio and telematic
system, the wipers and the dipped beam
headlamps or courtesy lamps, for a combined
duration of approximately 40 minutes.
Switching to this mode
A message appears in the instrument panel
screen indicating that the vehicle has switched to
economy mode and the active functions are put
on standby.
If a telephone call is being made at this
time, it will be maintained for around 10
minutes with the Bluetooth hands-free system
of your audio 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.
To 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,
refer to the corresponding section.
Roof bars
For safety reasons and to avoid
damaging the roof, it is essential to use
the transverse bars approved for your vehicle.
Observe the fitting instructions and the
conditions of use in the guide supplied
with the roof bars.

130
Practical information
► Remove the roof bars once they are no longer needed.
Maximum load, distributed over the roof
bars, for a loading height not exceeding
40 cm:
– without longitudinal bars: 50 kg,– with longitudinal bars: 45 kg.
As this value may change, please verify the
maximum load quoted on the note 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
mountings on the vehicle.
Be sure to refer to national legislation in order
to comply with the regulations for transporting
objects which are longer than the vehicle.
Bonnet
Stop & Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of injury resulting from an automatic
change to START mode.
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!
Opening


► Open the left-hand front door .
► Pull the interior release lever, located at the bottom of the door frame, towards you.

► Tilt the safety catch to the left 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 represented is an example given for
illustration purposes only.
The locations of the following elements may
vary:
– Air filter.– Engine oil dipstick.– Engine oil filler cap.– Priming pump.
* Depending on engine.

134
Practical information
For more information on the precautions
to take before any work on the 12 V battery, refer to the corresponding section.
Versions equipped with Stop & Start are fitted with a 12 V lead-acid battery of specific technology and specification.
Its replacement should be carried out only by
a CITROËN dealer or a qualified workshop.
Passenger compartment
filter
Depending on the environment and the use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
A clogged passenger compartment filter
can adversely affect air conditioning
system performance and generate
undesirable odours.
Air filter
Depending on the environment and the use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
Oil filter
Change the oil filter each time the engine oil is changed.
Particle filter (Diesel)
When the particle filter is approaching saturation, this warning lamp comes on
temporarily, accompanied by a message warning
of the risk of filter clogging.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 37 mph (60 km/h) until the warning lamp goes off.
If the warning lamp stays on, this
indicates a low Diesel additive level.
For more information on Checking levels,
refer to the corresponding section.
Following prolonged operation of the
vehicle at very low speed or at idle, you
may, in exceptional circumstances, notice the
emission of water vapour at the exhaust while
accelerating. This has no impact on the
vehicle’s behaviour or the environment.
New vehicle
During the first few particle filter
regeneration operations, you may notice a
"burning" smell. This is perfectly normal.
Manual gearbox
The gearbox does not require any maintenance (no oil change).
Automatic gearbox
The gearbox does not require any maintenance (no oil change).
Brake pads
Brake wear depends on the style of driving, particularly in the case of vehicles
used in town, over short distances. It may be
necessary to have the condition of the brakes
checked, even between vehicle services.
Unless there is a leak in the circuit, a drop in the
brake fluid level indicates that the brake pads
are worn.
After washing the vehicle, moisture, or in wintry conditions, ice can form on the
brake discs and pads: braking efficiency may
be reduced. Gently dab the brakes to dry and
defrost them.
Brake disc wear
For information on checking brake disc
wear, contact a CITROËN dealer or a
qualified workshop.
Manual parking brake
If you notice excessive brake lever travel or decreased effectiveness, the parking
brake must be adjusted, even between two
services.
This system must be checked by a CITROËN
dealer or a qualified workshop.
Wheels and tyres
The inflation pressure of all tyres, including the spare wheel, must be
checked on "cold” tyres.
The pressures indicated on the tyre pressure
label are valid for "cold" tyres. If you have driven
for more than 10 minutes or more than 6 miles
(10 kilometres) at over 31 mph (50 km/h), add 0.3 bar (30 kPa) to the values indicated on the
label.
Under-inflation increases fuel
consumption. Non-compliant tyre
pressure causes premature wear on tyres and
has an adverse effect on the vehicle's road
holding - risk of an accident!
Driving with worn or damaged tyres reduces the
braking and road holding performance of the
vehicle. It is recommended to regularly check the
condition of the tyres (tread and sidewalls) and
wheel rims as well as the presence of the valves.
When the wear indicators no longer appear set
back from the tread, the depth of the grooves is
less than 1.6 mm; it is imperative to replace the
tyres.
Using different size wheels and tyres from those
specified can affect the lifetime of tyres, wheel
rotation, ground clearance, the speedometer
reading and have an adverse effect on road
holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime.

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.

150
In the event of a breakdown
Fuses in the dashboard
Access to the fuses

The 2 fuseboxes are located in the lower part of
the dashboard, below the steering wheel.
► Unclip the cover by pulling at the top left, then right.

The 2 fuseboxes are located in the lower part of
the dashboard, in the glove box.
► Open the glove box.► Unclip the fusebox protection cover.
Changing a fuse
Access to tooling
The extraction tweezers are located behind the
dashboard fuse box cover.


► Unclip the cover by pulling at the top left, then right.► Disengage the cover completely and turn it over,► Take the tweezers from their housing.
Changing a fuse
Before changing a fuse:► Identify the cause of the fault and fix it.► Stop all power consumption.► Immobilise the vehicle and switch the ignition off.► Identify the defective fuse using the current allocation tables and diagrams.
To replace a fuse, it is essential to:
► Use the special tweezers to extract the fuse from its housing and check the condition of its
filament.
► Always replace the failed fuse with a fuse of the same rating (same colour); use of a different
rating may cause malfunctions - risk of fire!
If the fault recurs after replacing a fuse, have the
electrical system checked by a CITROËN dealer
or a qualified workshop.
The fuse allocation tables and the
corresponding diagrams are available
from a CITROËN dealer or from a qualified
workshop.
The replacement of a fuse not shown in the allocation tables may cause a serious
malfunction of your vehicle. Contact a
CITROËN dealer or a qualified workshop.




Good Failed

Tweezers
Installing electrical accessories
Your vehicle's electrical system is
designed to operate with standard or optional
equipment.
Before installing other electrical equipment
or accessories on your vehicle, contact a
CITROËN dealer or a qualified workshop.
CITROËN will not accept responsibility
for the cost incurred in repairing your
vehicle or for rectifying malfunctions resulting
from the installation of accessories not
supplied and not recommended by CITROËN
and not installed in accordance with its
instructions, in particular when the combined
consumption of all of the additional equipment
connected exceeds 10 milliamperes.

176
CITROËN Connect Radio
CITROËN Connect Radio

Multimedia audio system -
Applications - Bluetooth
®
telephone
The functions and settings described
vary according to the vehicle version and
configuration.
For safety reasons and because they
require sustained attention by the driver,
the following operations must be carried out
with the vehicle stationary and the ignition
on:
– Pairing the smartphone with the system in Bluetooth mode.– Using the smartphone.– Connection to the CarPlay®, MirrorLinkTM
or Android Auto applications (certain
applications interrupt their display while the
vehicle is moving).
– Changing the system settings and configuration.
The system is protected in such a way that it will only operate in the vehicle.
The Energy Economy Mode message is
displayed when the system is about to enter
the corresponding mode.
The system’s Open Source Software (OSS) source codes are available at the
following addresses:
https://www.groupe-psa.com/fr/oss/
https://www.groupe-psa.com/en/oss/
First steps
With the engine running, a press mutes the sound.
With the ignition off, a press turns the system on.
Increase or decrease the volume using
the wheel or the "plus" or "minus" buttons
(depending on the equipment).
Use the buttons on either side of or below the
touch screen for access to the menus, then
press the virtual buttons in the touch screen.
Depending on the model, use the "Source" or
"Menu" buttons on the left of the touch screen
for access to the menus, then press the virtual
buttons in the touch screen.
At all times it is possible to display the rolling
menus by pressing the screen briefly with three
fingers.
All of the touch areas of the screen are white.
For pages with multiple tabs at the bottom of the
screen, it is possible to switch between pages
either by tapping the tab for the desired page, or
by using a finger, sliding the pages to the left or
to the right.
Press in the grey zone to go back up a level or
to confirm.
Press the back arrow to go back a level or
confirm.
The touch screen is of the "capacitive" type.
To clean the screen, use a soft, non-abrasive
cloth (e.g. spectacles cloth) with no additional
product.
Do not use sharp objects on the screen.
Do not touch the screen with wet hands.
Certain information is displayed permanently in
the upper bar of the touch screen:
– Air conditioning status information (depending on version), and direct access to the
corresponding menu.
– Radio Media and Telephone menu status information.– Privacy status information.– Access to the touch screen and digital instrument panel settings.
Audio source selection (depending on
equipment):

178
CITROËN Connect Radio
Short press: confirm a selection; if nothing
selected, access to presets.
Radio: display the list of stations.
Media: display the list of tracks.
Radio (press and hold): update the list of
stations received.
Menus
Applications

Access configurable equipment.
Radio Media

Select an audio source or radio station.
Telephone

Connect a mobile phone via Bluetooth®.
Run certain applications on a smartphone
connected via MirrorLink
TM, CarPlay® or Android
Auto.
Settings

Configure a personal profile and/or configure the sound (balance, ambience,
etc.) and the display (language, units, date, time,
etc.).
Driving

Activate, deactivate or configure certain vehicle functions.
Navigation

Configure the navigation and select your destination via MirrorLinkTM, CarPlay® or
Android Auto.
Air conditioning
21,518,5

Manage various temperature and air flow settings.