2020 CITROEN C4 CACTUS air condition

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ASR/DSC
These systems offer increased safety
in normal driving, but they should not
encourage the driver to take extra risks or
drive at high speed.
It is in conditions of reduced grip (rain,
snow, ice) that the risk of loss of grip
increases. It is therefore important for your
safety to keep these systems activated in
all conditions, and particularly in difficult
conditions.
The correct operation of these
systems depends on obser vation of
the manufacturer's recommendations
regarding as much the wheels (tyres and
rims), braking and electronic components
as the assembly and repair procedures
used by CITROËN dealers.
To benefit in full from the effectiveness
of these systems in wintry conditions,
the vehicle must be fitted with four snow
tyres, allowing the vehicle to retain neutral
behaviour on the road.Grip control
Special patented traction control system which
improves traction on snow, mud and sand.
This system, the operation of which has been
optimised for each situation, allows you to
manoeuvre in most conditions of poor grip
(encountered when using a passenger car).
Associated with 205/50 R17 all-season M+S
(Mud and Snow) tyres, this system offers a
compromise between safety, grip and traction.
These tyres are efficient in winter and summer
conditions.
The accelerator pedal should be pressed
sufficiently to allow the system to use the power
of the engine. Operation at high engine speeds
is completely normal.
A five-position selector knob allows you to
choose the setting best suited to the driving
conditions encountered.
An indicator lamp associated with each mode
comes on to confirm your choice.
A specific and additional display appears
temporarily in the touch screen to confirm the
selection made with the knob.
Standard (ESC)
This mode is calibrated for a low level of wheel
spin, based on the different levels of grip
normally encountered on the road.F

P
lace the knob in this position.
Every time the ignition is switched off, the
system automatically resets to this mode.
Snow
This mode adapts its strategy to the conditions
of grip encountered for each of the two front
wheels on moving off.
(mode active up to 50 mph (80 km/h)) F

P
lace the knob in this position.
Safety

78
Airbags
General information
System designed to contribute towards
improving passenger safety (with the exception
of the rear centre passenger) in the event of
violent collisions. The airbags supplement the
action of the seat belts fitted with force limiters
(all except the rear centre passenger).
If a collision occurs, the electronic detectors
record and analyse the front and side impacts
sustained in the impact detection zones:
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n the case of a serious impact, the airbags
are deployed instantly and contribute
towards better protection of the occupants
of the vehicle (with the exception of the rear
centre passenger); immediately after the
impact, the airbags deflate rapidly so that
they do not hinder visibility or the exit of the
occupants,
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n the case of a minor or rear impact or
in certain rollover conditions, the airbags
may not be deployed; the seat belt
alone contributes towards ensuring your
protection in these situations. The airbags do not operate when the
ignition is switched off.
This equipment will only deploy once. If a
second impact occurs (during the same or
a subsequent accident), the airbag will not
be deployed again.
Impact detection zones
A.
Front impact zone.
B. Side impact zone. The deployment of an airbag is
accompanied by a slight emission of
smoke and a noise, due to the detonation
of the pyrotechnic charge incorporated in
the system.
This smoke is not harmful, but sensitive
individuals may experience slight irritation.
The detonation noise associated with the
deployment of an airbag may result in a
slight loss of hearing for a short time.
Front airbags
System which protects the driver and front
passenger in the event of a serious front impact
in order to limit the risk of injury to the head and
thorax.
The driver's airbag is fitted in the centre of the
steering wheel; the front passenger airbag is
fitted in the dashboard above the glove box.
Safety

131
The manoeuvring symbol is displayed in red,
accompanied by the "Manoeuvre cancelled "
message on the touch screen.
A message encourages the driver to take back
control of their vehicle.
The function is deactivated after a few seconds
and returns to the initial display.
End of the parking space entry or
exit manoeuvre
The vehicle stops as soon as the manoeuvre is
completed.
The manoeuvre symbol is displayed in red
accompanied by the message " Manoeuvre
completed " on the touch screen.
When deactivated, the indicator lamp in the
button goes off, accompanied by an audible
signal.
If entering a parking space, the driver may be
required to complete the manoeuvre.
Operating limits
- The system can suggest an inappropriate parking space (parking prohibited, work
in progress with damaged road sur face,
location alongside a ditch, etc.).
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T
he system is not designed for per forming
the parking manoeuvre on a sharp curve. The vehicle's sensors and camera(s) may be
impaired by:
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ccumulated snow or fallen leaves on the
road,
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dverse weather conditions (heavy rain,
thick fog, falling snow),
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nois
e interference from noisy vehicles and
machinery (lorries, pneumatic drills, etc.). Do not use the system:
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A
longside a soft shoulder (ditch) or
quay or on a cliff edge.
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hen carrying an object extending
beyond the vehicle size (ladder on the
roof bars, bike carrier on the tailgate,
e t c .) .
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ith a non-approved tow ball in place.
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ith snow chains fitted.
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n the event of under-inflation of a tyre.
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hen driving on a small-diameter or
"space-saver" type spare wheel.
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hen the wheels fitted are different
from the original ones.
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f one of the bumpers is damaged.
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fter modifying one or both bumpers
(adding protection, etc.).
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f a camera is faulty.
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f the sensors have been repainted
outside the CITROËN dealer network.
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ith sensors not approved for your
vehicle.
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hen the road sur face is slippery (ice,
e t c .) .
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T
he system does not detect spaces that are
much larger than the vehicle itself or that
are delimited by obstacles that are too low
(pavements, studs, etc.) or too thin (trees,
posts, wire fences, etc.).
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ertain obstacles located in the sensors'
blind spots may not be detected or no
longer detected during the manoeuvre.
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ertain materials (fabrics) absorb sound
waves: pedestrians may not be detected.
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A f
ront or rear impact to the vehicle can
upset the sensor settings which is not
always detected by the system: distance
measurements may be falsified.
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f the boot is heavily loaded, the tilt of the
vehicle towards the rear may inter fere with
the distance measurements.
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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.
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f using a high-pressure washer, do not
direct the lance less than 30 cm from the
sensors and cameras.
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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

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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.
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Driving

140
Towing device
Load distribution
F D istribute 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
towed load must be reduced by 10
% for every
1,000 metres of altitude.
Use towing devices and their genuine
harnesses approved by CITROËN. It is
recommended that the installation be
per formed by a CITROËN dealer or a
qualified workshop.
If the towing device is not fitted by
a CITROËN dealer, it must still be
fitted in accordance with the vehicle
manufacturer's instructions.
Certain driving or manoeuvring aid
functions are automatically disabled if an
approved towing device is used. Obser ve the maximum authorised towable
weight, indicated on your 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 (ball joint)
also includes the use of accessories
(bicycle carriers, tow boxes, etc.).
Obser ve the legislation in force in the
country in which you are driving.
Remove the quickly detachable towball
when not towing a trailer.
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
System which manages the duration of use of
certain functions to conser ve a sufficient level
of charge in the battery.
After the engine has stopped, you can still use
functions such as the audio and telematics
system,
windscreen wipers, dipped beam
headlamps,
courtesy lamps, etc. for a
maximum combined duration of about forty
minutes.
Entering the mode
A message appears on the touch screen
indicating that the vehicle has switched to
economy mode and the active functions are put
o n st a n d by.
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 will be automatically restored
the next time the vehicle is used.
In order to restore the use of these functions
immediately, start the engine and let it run:
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f
or less than ten minutes, to use the
equipment for approximately five minutes,
Practical information

147
AdBlue level
An alert is triggered once the reser ve level is
reached.
To avoid the vehicle being immobilised as per
regulations, you must top up with AdBlue.
For more information on AdBlue and the SCR
system, and, in particular, topping it up, 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.
Other wise, have them checked by a CITROËN
dealer or a qualified workshop.
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.
For more information on the precautions
to take before starting work on the
12 V batter y , 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.
Air filter
Depending on the environment
(e.g. dusty atmosphere) and the
use of the vehicle (e.g. city driving),
replace it twice as often, if
necessary
.
Passenger compartment
filter
Depending on the environment
(e.g. dusty atmosphere) and the
use of the vehicle (e.g. city driving),
replace it twice as often, if
necessary.
A clogged passenger compartment
filter may have an adverse effect on
the per formance of the air conditioning
system and generate undesirable odours.
Oil filter
Change the oil filter each time the
engine oil is changed.
Particle filter (Diesel)
The start of saturation of the particle
filter is indicated by the constant
illumination of this warning lamp
accompanied by an alert message.
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Practical information

170
Fuses in the engine
compartment
Access to the fuses
F Unclip the cover.
F C hange the fuse.
F

W
hen you have finished, close the cover
very carefully to ensure correct sealing of
the fusebox. Fuse
No. Rating
(A) Functions
F1 40Air conditioning.
F16 15Front foglamps.
F18 10Right-hand main beam headlamp.
F19 10Left-hand main beam headlamp.
F29 40Windscreen wipers.
The fusebox is placed in the engine
compartment near the battery.
In the event of a breakdown