2021 CITROEN C4 CACTUS tyre pressure

7
Limit the causes of excess
consumption
Spread loads throughout the vehicle; place
the heaviest items in the bottom of the boot,
as close as possible to the rear seats.
Limit the loads carried in the vehicle and
reduce wind resistance (roof bars, roof rack,
bicycle carrier, trailer, etc.). Preferably, use a
roof box.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and
refit your summer tyres.
Observe the recommendations
on maintenance
Check the tyre pressures regularly, when cold,
referring to the label in the door aperture,
driver's side.
Carry out this check in particular:
-
b
efore a long journey,
-

a
t each change of season,
-

a
fter a long period out of use.
Do not forget the spare wheel and the tyres on
any trailer or caravan. Have your vehicle ser viced regularly (engine
oil, oil filter, air filter, cabin filter, etc.) and
obser ve the schedule of operations in the
manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR
system is faulty, your vehicle becomes
polluting. Visit a CITROËN dealer or a
qualified workshop as soon as possible to
bring your vehicle's nitrogen oxides emissions
back in line with the regulations.
When refuelling, do not continue after the 3
rd
cut-off of the nozzle to avoid any over flow.
At the wheel of your new vehicle, it is only
after the first 1,900 miles (3,000 kilometres)
that you will see the fuel consumption settle
down to a consistent average.
.
Eco-driving

16
Under-inflationFixed, accompanied by an
audible signal and a message. The pressure in one or more tyres is
too low. Check the pressure of the tyres as soon as
possible.
Reinitialise the detection system after
adjusting the pressure.
+ Under-inflation
Flashing then fixed,
accompanied by the Ser vice
warning lamp. The system is faulty: tyre pressures
are no longer monitored.
As soon as possible, check the pressure of
the tyres and carry out (3).
Diesel engine
pre-heating Fixed.
The period of illumination
depends on the climatic
conditions. The ignition is on.
Wait until the lamp goes off before starting.
If the engine does not start, switch the
ignition off and then on, wait until the lamp
goes off again, then start the engine.
Front passenger
airbag (ON) Fixed.
The front passenger airbag is
activated.
The control is in the "ON" position. In this case, do NOT install a "rear ward
facing" child seat on the front passenger
seat – Risk of serious injur y!
Front passenger
airbag (OFF) Fixed.
The front passenger airbag is
deactivated.
The control is in the "OFF" position. You can install a "rear ward facing" child
seat, unless there is a fault with the airbags
(Airbags warning lamp on).
Airbags Fixed. One of the airbags or seat belt
pyrotechnic pretensioners is faulty. Carry out (3).
Warning/indicator lamp
State Cause Action/Observations
Instruments

72
Electronic stability control
(ESC)
Electronic stability control integrating the
following systems:
-
a
nti-lock braking system (ABS) and
electronic brake force distribution (EBFD),
-
em

ergency braking assistance (EBA),
-

w
heel anti-slip regulation (ASR) or traction
control,
-
d

ynamic stability control (DSC).
Definitions
Anti-lock braking system (ABS)
and electronic brake force
distribution (EBFD)
This system improves the stability and
manoeuvrability of your vehicle when braking and
contributes towards improved control on corners, in
particular on poor or slippery road sur faces.
The ABS prevents wheel lock in the event of
emergency braking.
The electronic brake force distribution system (EBFD)
manages the braking pressure wheel by wheel.
Emergency braking assistance
(EBA)
In an emergency, this system permits the
optimum braking pressure to be reached
more quickly, therefore reducing the stopping
distance.
It is triggered in relation to the speed at which
the brake pedal is pressed. The effect of this is
a reduction in the resistance of the pedal and
an increase in braking efficiency.
Anti-slip regulation (ASR)
The ASR system (also known as Traction
Control) optimises traction in order to limit
wheel slip by acting on the brakes of the driving
wheels and on the engine. It also improves
the directional stability of the vehicle on
acceleration.
Dynamic stability control (DSC)
If there is a difference between the path
followed by the vehicle and that required by
the driver, the DSC monitors each wheel and
automatically acts on the brake of one or more
wheels and on the engine to return the vehicle
to the required path, within the limits of the laws
of physics.
If you benefit from the Citroën Connect
Box offer with the SOS and assistance
pack included, there are additional
ser vices available to you in your personal
space, via the website for your country.
Anti-lock braking system
(ABS) and electronic brake
force distribution (EBFD)
The fixed illumination of this warning
lamp indicates that there is a fault
with the ABS.
If this warning lamp comes on, in
conjunction with the STOP
and
ABS warning lamps, an audible
signal and a message, this indicates
that the electronic brake force
distribution (EBFD) is faulty.
You must stop as soon as it is
safe to do so.
In both cases, have the system
checked by a CITROËN dealer or
a qualified workshop as soon as
possible.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
Normal operation of the ABS may make
itself felt by slight vibration of the brake
pedal.
If you need to brake in an emergency,
press the brake pedal ver y firmly and
keep the pressure applied.
Safety

95
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
Side wind
F Take into account the increased sensitivity to wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towed load on an incline
depends on the gradient and the exterior
temperature.
In all cases, keep a check on the coolant
temperature.
F

I
f this warning lamp and the
STOP warning lamp come on,
stop the vehicle and switch off
the engine as soon as possible. New vehicle
Do not pull a trailer before having driven at
least 620 miles (1,000 kilometres).
Braking
Towing a trailer increases the braking distance.
To avoid overheating of the brakes, the use of
engine braking is recommended.
Ty r e s
F Check the tyre pressures of the towing
vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the electrical lighting and signalling on the trailer and the headlamp beam height
of your vehicle.
For more information on Headlamp
beam height adjustment , refer to the
corresponding section.
Certain driving or manoeuvring aid
functions are automatically disabled if an
approved towing device is used. If the exterior temperature is high, it is
recommended that the engine be allowed
to idle for 1 to 2 minutes after the vehicle
comes to a stop, to facilitate its cooling.
Anti-theft protection
Electronic immobiliser
The key contains an electronic chip which has
a secret code. When the ignition is switched
on, this code must be recognised to enable
vehicle start.
This electronic engine immobiliser locks
the engine management system a moment
after the ignition is switched off and prevents
unauthorised engine starting.
In the event of a fault, you are
informed by the illumination of this
warning lamp, an audible signal and
a message in the screen.
In this case, your vehicle will not start; contact
a CITROËN dealer or a qualified workshop as
soon as possible.
For safety and theft protection reasons,
do not leave your electronic key in the
vehicle, even when you are close to it.
It is recommended that you keep it with
you.
6
Driving

132
Recommendations on care
- Regularly check that the sensors and cameras are clean.
If necessary, clean the camera lenses with
a soft, dry cloth.
-

I
f using a high-pressure washer, do not
direct the lance less than 30 cm from the
sensors and cameras.
-

I
n bad weather, or during the winter, ensure
that the sensors and cameras are not
covered with mud, ice or snow.
Operating faults
When the function is not activated,
the button warning lamp flashing
and an audible signal indicates a
system fault.
If the fault occurs during the use of the system,
the warning lamp goes off.
If the fault in the parking sensors,
indicated by this warning lamp
coming on, occurs during use, it
causes the function to deactivate.
In the event of a fault, have the system checked
by a CITROËN dealer or a qualified workshop. In the event of a fault with the
power steering, this warning lamp
flashes in the instrument panel,
accompanied by a message.
You must stop as soon as it is safe to do so.
Contact a CITROËN dealer or a qualified
workshop.
Tyre under-inflation
detection
System which automatically checks the
pressures of the tyres while driving.
The system monitors the pressure in all four
tyres, as soon as the vehicle is moving.
It compares the information given by the
wheel speed sensors with reference values,
which must be reinitialised after ever y tyre
pressure adjustment or wheel change .
The system triggers an alert as soon as it
detects a drop in the pressure of one or more
tyres. The tyre under-inflation detection system
does not replace the need for vigilance on
the part of the driver.
This system still requires you to check the
tyre inflation pressure (including the spare
wheel) every month as well as before a
long journey.
Driving with under-inflated tyres impairs
handling, extends braking distances and
causes premature tyre wear, particularly
in adverse conditions (heavy loads, high
speeds, long journeys).
Driving with under-inflated tyres
increases fuel consumption.
The tyre pressure specifications for your
vehicle can be found on the tyre pressure
label.
For more information on the
Identification markings , refer to the
corresponding section.
Driving

133
Tyre pressures should be checked when
the tyres are "cold" (vehicle stopped for
1 hour or after a journey of less than
6 miles (10 km) at moderate speeds).
Other wise (when hot), add 0.3 bar to the
pressures shown on the label.
Under-inflation alert
This warning is indicated by
continuous illumination of this lamp,
an audible signal and a message
displayed on the screen.
F

R

educe speed immediately, avoid excessive
steering movements and sudden braking.
F

S

top as soon as it is safe to do so.
The loss of pressure detected does not
always cause visible bulging of the tyre.
Do not rely on a simple visual check. F

I
f you have a compressor (such as the
one in the temporary puncture repair kit),
check the pressures of the four tyres when
cold. If it is not possible to make this check
immediately, drive carefully at reduced
speed.
or
F
I
n the event of a puncture, use the
temporary puncture repair kit or the spare
wheel (depending on equipment).
The warning remains active until the
system is reinitialised.
Reinitialisation
The system must be reinitialised after any
adjustment to the pressures of one or more
tyres, and after changing one or more wheels. Before reinitialising the system, ensure
that the pressures of the four tyres
are correct for the conditions of use
of the vehicle and conform to the
recommendations on the tyre pressure
label.
The under-inflation alert can only be relied
on if the reinitialisation of the system has
been done with the pressures in the four
tyres correctly adjusted.
The under-inflation detection system
does not give a warning if a pressure is
incorrect at the time of reinitialisation.
Reinitialisation of the system is done via the
touch screen, with the ignition on and the
vehicle stationary .
F I n the Driving/Vehicle menu,
select the " Driving functions "
tab, then " Reset under-
inflation detection ".
F

Sel
ect "Ye s" to confirm.
The reinitialisation is confirmed by the display
of a message and an audible signal.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
6
Driving

134
The under-inflation alert can only be relied
on if the reinitialisation of the system has
been done with the pressures in the four
tyres correctly adjusted.
Operating fault
The flashing and then fixed illumination of the
under-inflation warning lamp accompanied
by illumination of the Ser vice warning lamp
indicates a fault in the system.
In this case, under-inflation monitoring of the
tyres is no longer assured.
Have the system checked by a CITROËN
dealer or a qualified workshop.After carrying out any work on the system,
the pressures of the four tyres must be
checked and the system reinitialised.
Driving

154
Under-inflation detection
After repair of the tyre, the warning
lamp will remain on until the system is
reinitialised.
For more information on Tyre under-
inflation detection, refer to the
corresponding section.
Access to the kit
This kit is installed in the storage box, under
the boot floor.
List of tools
1. Temporary puncture repair kit.
Contains a sealant cartridge for the
temporary repair of a tyre and can also be
used for adjusting tyre pressures.
2. Socket for the security bolts (located in the
glove box or in the tool box) (depending on
ve r s i o n).
Ser ves for adapting the wheelbrace to the
special "security" bolts.
3. Removable towing eye.
For more information on Towing the vehicle
and using the removable towing eye, refer to
the corresponding section.
Composition of the kit
1. 12 V compressor, with built-in pressure
gauge.
2. Bottle of sealant, with built-in hose.
3. Speed limit sticker.
Repair procedure
F Park the vehicle without obstructing any
traffic and apply the parking brake.
F

F
ollow the safety instructions (hazard
warning lamps, warning triangle, wearing
high visibility vest, etc.) according to the
legislation in force in the country where you
are driving. The tyre inflation pressures are given on
this label.
In the event of a breakdown