ECU CITROEN C3 AIRCROSS 2021 Handbook (in English)

125
Practical information
7Use only the chains designed to be fitted to the
type of wheel fitted to the vehicle:
Original tyre sizeChain types
195/65 R15
Maximum 9 mm link
195/60 R16
205/60 R16 Cannot be fitted with
chains
215/50 R17
For more information on snow chains, contact a
CITROËN dealer or a qualified workshop.
Installation tips
► To fit the chains during a journey, stop the vehicle on a flat surface on the side of the road.► Apply the parking brake and position any wheel chocks under the wheels to prevent
movement of the vehicle.
► Fit the chains following the instructions provided by the manufacturer.► Move off gently and drive for a few moments, without exceeding 31 mph (50 km/h).► Stop the vehicle and check that the snow chains are correctly tightened.
It is strongly recommended that before
you leave, you practise fitting the snow
chains on a level and dry surface.
Avoid driving with snow chains on roads that have been cleared of snow to avoid
damaging the vehicle's tyres and the road
surface. If the vehicle is fitted with alloy
wheels, check that no part of the chain or its
fixings is in contact with the wheel rim.
Towbar with quickly detachable towball
No tools are required to install or remove the
towball on this genuine towbar system.
Presentation
This genuine towing device can be fitted and
removed with no need for tools.


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 (green mark opposite the
white mark); the wheel is in contact with the
towball (no gap).
B. Unlocked position (red mark opposite the
white mark); the wheel is no longer in contact
with the towball (gap of around 5 mm).
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
Check that the towball is correctly fitted,
verifying the follow points:

126
Practical information
– the green mark on the star wheel is in line
with the white mark on the ball joint,
– the locking wheel is in contact with the towball (position A),– the security key lock is on and the key removed; the locking wheel can no longer be
operated,
– the towball must not be able to move in its carrier; test by shaking it with your hand.
If the towball is not locked, the trailer can
detach - accident risk!
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.
It is essential that the maximum authorised
load be complied with on the towing device:
if it is exceeded, this device may detach from
the vehicle, which is a serious accident risk.
Check that the trailer lamps work correctly.
Before setting off, check the adjustment of the
headlamp beam height.
For more information on Headlamp
adjustment, refer to the corresponding
section.
Following use
When travelling without a trailer or load
on a towbar-mounted carrier, the towball
must be removed and the protective plug
inserted in the carrier. This measure applies
particularly where the towball might obscure
visibility of the number plate or its lighting.
Fitting the towball

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

► Insert the end of towball 5 into carrier 1 and
push it upwards; the locking will take place
automatically.


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


► Check that the mechanism has correctly locked into place and that the green mark on the
star wheel is in line with the white mark on the
towball (position A).
► Close the lock 7 using the key.

129
Practical information
7– 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.
Version without longitudinal
bars


When fitting roof bars, use only the four fixing
points located in the roof frame. The points are
hidden by the vehicle doors when closed.


The roof bar fixings include a lug to be fitted into
the hole at each fixing point.
Version with longitudinal
bars


You must fit the transverse bars to the
longitudinal bars at the fixing points under the
longitudinal bars.
Sunroof
Check that the load does not pass below
the roof bars so that it does not impede the
movements of the sunroof.
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.► Lash the load down securely and fit a warning flag if it overhangs the vehicle.
► Drive gently: the vehicle will be more susceptible to the effects of side winds
(stability may be affected).

139
In the event of a breakdown
8Running out of fuel
(Diesel)
With Diesel engines, the fuel system must be
primed if you run out of fuel.
Before starting to prime the system, it is
essential to put at least 5 litres of Diesel into the
fuel tank.
For more information on Refuelling and
on Misfuel prevention (Diesel), please
refer to the corresponding section.
For non-BlueHDi versions, the fuel system
components are located in the engine
compartment, possibly under the removable
cover.
For more information on the Engine
compartment, in particular the location
of these components under the bonnet,
please refer to the corresponding section.
BlueHDi engines
► Switch on the ignition (without starting the engine).► Wait around 1 minute and switch off the ignition.► Operate the starter motor to start the engine.If the engine does not start at the first attempt,
do not keep trying, but restart the procedure.
Non-BlueHDi engines
► Open the bonnet and then, if necessary , unclip the cover to access the priming pump.► Operate the priming pump repeatedly until resistance is felt (resistance may be
felt at the first press).
► Operate the starter motor to start the engine (if the engine does not start at the first attempt,
wait around 15 seconds before trying again).
► If the engine does not start after a few attempts, operate the priming pump again, then
the starter motor.
► Put the cover back in place and clip it in, then close the bonnet.
Tool kit
Set of tools supplied with the vehicle.
Its content depends on your vehicle's equipment:
– Temporary puncture repair kit.– Spare wheel.
Accessing the tools

List of tools

1. Chocks to immobilise the vehicle (depending
on equipment)
2. Socket for the wheel security bolts (located in
the glove box or in the tool box) (depending
on country of sale)
For adapting the wheelbrace to the special
‘security’ bolts.

141
In the event of a breakdown
8Access to the kit

This kit is installed in the storage box, under the
boot floor.
Repair procedure
Do not remove any foreign bodies (e.g.
nail, screw) which have penetrated into
the tyre.
► Park the vehicle without obstructing traffic and apply the parking brake.► Follow the safety instructions (hazard warning lamps, warning triangle, high visibility
vest, etc.) according to the legislation in force in
the country of driving.
► Switch off the ignition.► Uncoil the pipe stowed under the compressor.

► Connect the pipe from the compressor to the bottle of sealant.

► Turn the bottle of sealant over and secure it in the notch provided on the compressor.► Remove the valve cap from the tyre to be repaired, and place it in a clean area.

► Connect the hose from the bottle of sealant to the valve of the tyre to be repaired and tighten
firmly.
► Check that the compressor switch is in position "O".► Fully uncoil the electric cable stowed under the compressor.► Connect the compressor's electric plug to the vehicle's 12 V socket.
Only the 12 V socket located at the front
of the vehicle can be used to power the
compressor .
► Affix the speed limit sticker .
The speed limit sticker must be secured
to the interior of the vehicle in the area
close to the driver, to remind the driver that a
wheel is in temporary use.

144
In the event of a breakdown

► Remove the bolts and store them in a clean place.► Remove the wheel.
Stowing the damaged wheel► To stow an alloy wheel , first remove
the wheel trim from the centre of the wheel so
that the fastening device (nut and bolt) can be
put in place.
► In the case of a "space saver" type
spare wheel, the damaged wheel cannot be
stowed under the floor. It must be placed in
the boot; use a cover to protect the inside of
the boot.
Fitting a wheel

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to lock the wheels, apply the parking brake,
unless it is programmed to be in automatic
mode, and switch off the ignition.
Check for the fixed illumination of the parking
brake indicator lamps in the instrument panel.
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.


– If the vehicle has steel wheels, remove the wheel trim.– If the vehicle has alloy wheels, remove the central bolt cover using tool 7.– If the vehicle is so equipped, fit security bolt socket 2 to wheelbrace 5 to slacken the security
bolt.
– Slacken the other bolts using the wheelbrace 5 only.

► 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.
► Raise the vehicle until there is sufficient space between the wheel and the ground to
admit the spare (not punctured) wheel easily.
Ensure that the jack is stable. If the
ground is slippery or loose, the jack may
slip or collapse - risk of injury!
Take care to position the jack strictly at
one of the jacking points A or B under the
vehicle, ensuring that the head of the jack is
centred under the contact area of the vehicle.
Otherwise, there is a risk of damage to the
vehicle and/or of the jack collapsing - risk of
injury!

145
In the event of a breakdown
8

► Remove the bolts and store them in a clean place.► Remove the wheel.
Stowing the damaged wheel► To stow an alloy wheel, first remove
the wheel trim from the centre of the wheel so
that the fastening device (nut and bolt) can be
put in place.
► In the case of a "space saver" type
spare wheel, the damaged wheel cannot be
stowed under the floor. It must be placed in
the boot; use a cover to protect the inside of
the boot.
Fitting a wheel

Fitting a steel or ‘space-saver’ type
spare wheel
If the vehicle is equipped with alloy wheels,
the washers do not make contact with the
steel or ‘space-saver’ type spare wheel. The
wheel is secured by the conical surface of
each bolt.


► Fit the wheel on the hub.► Screw in the bolts by hand as far as possible.► Pre-tighten the security bolt using the wheelbrace 5 equipped with a security socket 2.► Pre-tighten the other bolts using the wheelbrace 5 only.

► Lower the vehicle again fully .► Fold jack 6 and remove it.

► Tighten the security bolt using the wheelbrace 5 equipped with a security socket 2.► Tighten the other bolts using the wheelbrace 5 only.► Refit the bolt covers to each of the bolts (depending on equipment).► Store the tools.

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.

202
CITROËN Connect Nav
Connection sharing
The system offers to connect the telephone with
3 profiles:
– "Telephone" (hands-free kit, telephone only),– "Streaming" (streaming: wireless playing of
the audio files on the telephone),
– "Mobile internet data ".
The "Mobile internet data " profile must
be activated for connected navigation
(where the vehicle does not have "Emergency
and assistance call" services), having first
activated sharing of this connection on your
smartphone.
Select one or more profiles.
Press "OK" to confirm.
Wi-Fi connection
Network connection via the smartphone's Wi-Fi.Press Connect-App to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Wi-Fi network connection ".
Select the "Secured", "Not secured" or
"Stored” tab.
Select a network.
Using the virtual keypad , enter the Wi-Fi
network "Key" and "Password".
Press "OK" to establish the connection.
The Wi-Fi connection and Wi-Fi
connection sharing are exclusive.
Wi-Fi connection sharing
Creation of a local Wi-Fi network by the system.Press Connect-App to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Share Wi-Fi connection ".
Select the "Activation" tab to activate or
deactivate Wi-Fi connection sharing.
And/or
Select the "Settings" tab to change the system’s
network name and password.
Press "OK" to confirm.
To protect against unauthorised access and to make your systems as secure as
possible, we recommend using a complex
password or security code.
Managing connections
Press Connect-App to display the main
page. Press the "OPTIONS
" button to access the
secondary page.
Select "Manage connection ".
With this function, you can view the access to
connected services, check the availability of
connected services and change the connection
mode.
Radio
Selecting a station
Press Radio Media to display the main
page.
Press on "Frequency".
Press one of the buttons to perform an
automatic search for radio stations.
Or
Move the slider to manually search for
frequencies up or down.
Or
Press Radio Media to display the main
page.
Press the "OPTIONS " button to go to the
secondary page.
Select "Radio stations" on the secondary
page.
Press on "Frequency".
Enter the values using the virtual keypad.
First enter the units then click on the
decimals field to enter the figures after the
decimal point.
Press "OK" to confirm.
Radio reception may be affected by the
use of electrical equipment not approved
by the Brand, such as a USB charger
connected to the 12 V socket.
The exterior environment (hills, buildings,
tunnels, basement car parks, etc.) may
block reception, including in RDS mode.
This phenomenon is perfectly normal in the
context of radio wave transmission, and
in no way indicative of an audio system
malfunction.
Presetting a station
Select a radio station or frequency.
(refer to the corresponding section)
Press "Presets ".
Make a long press on one of the buttons to preset the station.
Activating/Deactivating RDS
Press Radio Media to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Radio settings".
Select "General".
Activate/deactivate "Station follow ".