2022 CITROEN C5 AIRCROSS ECU

162
Practical information
Towing device with quickly detachable towball
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

Disconnection

Before disconnecting the nozzle from the
charging connector:
►

If the vehicle is locked, unlock it.
►


If the vehicle is unlocked, lock it and then
unlock it .
If selective unlocking of the doors is
activated, press the unlocking button on
the remote control twice to disconnect the
nozzle.
The red indicator lamp in the flap goes out to
confirm that the nozzle is unlocked.
►

Within
30 seconds, remove the charging
nozzle.
Domestic charging (mode 2)
The end of charging is confirmed when the
green CHARGE indicator lamp on the control
unit comes on fixed and the green light guides in
the flap come on fixed.
►

After disconnection, replace the protective
cover over the nozzle and close the charging
flap.
►


Disconnect the control unit's charging cable
from the domestic socket.
Accelerated charging (mode 3)
The end of charging is confirmed by the
accelerated charging unit (Wallbox) and when
the green light guides in the flap come on fixed.
►

After disconnection, replace the nozzle on to
the charging unit and close the charging flap.
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 towable load
must be reduced by 10% per 1,000
metres of
altitude.
Use genuine towing devices and their
wiring harnesses approved by CITROËN.
We recommend having them fitted by a
CITROËN dealer or a qualified workshop.
If not fitted by a CITROËN dealer, they must
still be fitted in accordance with the vehicle
manufacturer's instructions.
Important: with a motorised tailgate and its
"Hands-Free Tailgate Access" function, if a
towing device is fitted outside the CITROËN
dealer network, it is essential to visit a
CITROËN dealer or a qualified workshop
to recalibrate the detection system. Risk
of malfunction of the "Hands-Free Tailgate
Access" function.
Certain driving or manoeuvring aid functions
are automatically deactivated while an
approved towing system is in use.
Comply with the maximum authorised
towable weight, as indicated on your
vehicle's registration certificate, on the
manufacturer's label and in the Technical
data section of this guide.
Complying with the maximum authorised
nose weight (towball weight) also includes
the use of accessories (bicycle carriers,
tow boxes, etc.).
Observe the legislation in force in the
country where you are driving.
Vehicle equipped with motorised
tailgate with "Hands-Free Tailgate
Access" function
To avoid unintentionally opening the tailgate
while operating the towing device:
–

Deactivate this function in advance in your
vehicle's configuration menu.
–


Or remove the electronic key from the
recognition zone, with the tailgate closed.

163
Practical information
7Towing device with quickly detachable towball
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 (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).
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.
After use
When travelling without a trailer or
load carrier, remove the towball and fit the
protective plug into the carrier, to provide

167
Practical information
7► Gently tilt the screen downwards.
► Pull it towards you to free the entire unit.
For the lower centre screen
►

Insert a flat blade screwdriver into each of
the screen's orifices and prise out the 5

clips to
unclip them.
►

Pull it towards you to free the entire unit.
Fitting

► Place one of the side screens against the
corresponding side of the lower bumper grille.
►

Insert the mounting tabs into the bumper until
they are all properly seated.
►


Check that the unit is firmly held by pressing
around the edges.
Repeat the same operations for the other side
screen, then for the lower centre screen in the
lower part of the bumper

.
Roof bars
As a safety measure and to avoid damaging the roof, it is essential to use
the transverse bars approved for the 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):
75

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.


Sunroof
Do not operate the sunroof when using
roof bars - risk of major damage!
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 securely.
Drive gently: the vehicle will be more
susceptible to the effects of side winds and its
stability may be affected.
Regularly check the security and tight
fastening of the roof bars, at least before each
trip.
Remove the roof bars once they are no longer
needed.
Fitting directly to the roof

179
In the event of a breakdown
8Accessing the tools

The tool kit is stored in the boot, under the floor.
To access it:
Versions with 2-position boot floor:
►
Open the boot.
►


Place the adjustable boot floor in the high
position.
V

ersions with folding boot carpet
(Rechargeable hybrid):
►

Open the boot.
►


Unfold the folding boot carpet by pulling its
handle until it is fully opened.
With temporary puncture repair kit

► Unclip the two fixings to open its cover .
With spare wheel

► Unclip the storage box by pulling it upwards.
► Unclip the two fixings to open its cover .
List of tools

1.Chocks to immobilise the vehicle (depending
on equipment)
2. Socket for the wheel security bolts (located in
the glove box) (depending on equipment)
To adapt the wheelbrace to the special
‘security’ bolts.
3. Towing eye and tool to open the front and
rear protective covers
For more information on Towing the vehicle
and using the removable towing eye, refer to the
corresponding section.
With temporary puncture repair kit

183
In the event of a breakdown
8

► 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.
►


T
ighten 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.
If there is no wheel in the well, the
fastening device (nut and bolt) cannot be
refitted.
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.




► 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.


► 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.

184
In the event of a breakdown
► 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!


► Remove the bolts and store them in a clean
place.
►

Remove the wheel.
Fitting a wheel
Fitting a steel or "space-saver" type
spare wheel
If the vehicle is fitted with alloy wheels, the
washers A do not make contact with the steel
or "space-saver" type spare wheel. The wheel
is held in place by the conical contact surface
B 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 .
►

T
ighten the other bolts using the
wheelbrace

5
only.
►

Refit the bolt covers to each of the bolts
(depending on equipment).
►


Store the tools.
After changing a wheel
Store the punctured wheel in the boot or,
depending on version, remove the central cover
first to store it beneath the floor in place of the
spare 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.
Go to a CITROËN dealer or a qualified
workshop.
Have the tightening of the spare wheel's bolts
and its tyre pressure 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.

190
In the event of a breakdown
► Stop all power consumption.
► Immobilise the vehicle and switch the ignition
off.
►

Identify the defective fuse using the current
allocation tables and diagrams.
T

o 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 accepts no 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 specifications, in
particular when the combined power
consumption of all of the additional equipment
connected exceeds 10 milliamperes.
Fuses in the dashboard
The fusebox is located in the lower dashboard
(left-hand side).
To access the fuses, follow the same procedure
as described for accessing the fuse replacement
tools.
Lower fusebox

Fuse No. Rating
(Amps) Functions
F4 15Horn.
F6 20Front and rear screenwash pump.
F7 10Rear 12 V USB socket.
F8 20Rear wiper.
F10 30Locking/unlocking of the doors and fuel filler flap.
F14 5Alarm (unit).
F18 5Trailer power supply.
F28 5Alarm (siren), additional heating/ventilation remote control receiver.
F29 20Touch screen (CITROËN Connect Radio or CITROËN Connect Nav).

200
In the event of a breakdown
Use the towing eye only to free the vehicle
if it is stuck, or to secure it for recovery on a
flatbed lorry or trailer.
Towing constraints
Type of vehicle
(engine/gearbox) Front wheels on the
ground Rear wheels on the
ground Flatbed
4 wheels on the ground
with towbar
Internal combustion/Manual


Internal combustion/Automatic

Hybrid 2WD

2WD: 2-wheel drive.
In case of battery or electric parking brake failure, it is essential to call a p
rofessional using flatbed recovery vehicles (excluding manual gearbox).
Accessing the tools

The towing eye is stored in a tool box, under the
boot floor.
The opening tool for the rear protective cover is
secured to the towing eye.
For more information on accessing the Tool kit,
refer to the corresponding section.
Towing your vehicle
To access the front screw thread: