2023 CITROEN C4 CACTUS ESP

80
Driving

On detection of speed limit information, the
system displays the value.


The driver can adjust the vehicle’s speed
according to the information given by the system.
Operating limits
The system does not take account of reduced
speed limits, especially those imposed in the
following cases:
– poor weather (rain, snow),
– atmospheric pollution,
– when towing,
– driving with a space-saver type spare wheel or
snow chains fitted,
– Tyre repaired using the temporary puncture
repair kit,
– young drivers.
It is possible for the system to not display the
speed limit if it does not detect a speed limit
Speed Limit Recognition
and Recommendation
Refer to the General recommendations on the
use of driving and manoeuvring aids .


This system displays the maximum authorised
speed in the instrument panel, according to
the speed limits in the country in which you are
driving, using:
–

Speed limit signs detected by the camera.
–


Speed limit details from the navigation system
mapping.
Navigation mapping should be regularly
updated in order to receive accurate
speed limit information from the system.
The units for the speed limit (mph or km/h) depend on the country you are
driving in.
This should be taken into account so that you
observe the speed limit.
For the system to work correctly when
changing country, the speed unit in the
instrument panel must correspond to that of
the country you are driving in.
The automatic reading of road signs is a driving aid system and does not always
display speed limits correctly.
The speed limit signs present on the road
always take priority over the display by the
system.
The system is designed to detect signs that
conform to the Vienna Convention on road
signs.
Specific speed limits, such as those for
heavy goods vehicles, are not displayed.
The display of the speed limit in the
instrument panel is updated when passing
a speed limit sign intended for cars (light
vehicles).
Activation / Deactivation
By default, the system is automatically activated
at every engine start.
It is set via the Driving / Vehicle touch
screen menu.
Information displayed on
the instrument panel


1. Speed limit indication.
Speed display

The system is active but is not detecting speed
limit information.

81
Driving
6

On detection of speed limit information, the
system displays the value.


The driver can adjust the vehicle’s speed
according to the information given by the system.
Operating limits
The system does not take account of reduced
speed limits, especially those imposed in the
following cases:
–
poor weather (rain, snow),
–


atmospheric pollution,
–


when towing,
–


driving with a space-saver type spare wheel or
snow chains fitted,
–


T
yre repaired using the temporary puncture
repair kit,
–

young drivers.
It is possible for the system to not display the
speed limit if it does not detect a speed limit
sign within a preset period and in the following
situations:
–

road signs that are obstructed, do not comply
with the standard, are damaged or distorted,
–


obsolete or incorrect maps.
Memorising the speed
setting

In addition to Speed Limit Recognition and
Recommendation, the driver can select the
speed displayed as a speed setting for the speed
limiter or cruise control using the speed limiter or
cruise control memorisation button.
For more information on the Speed
limiter or Cruise control, refer to the
corresponding sections.
Steering mounted controls
1. Speed limiter/cruise control mode selection
2. Memorise the speed setting
Information displayed on the
instrument panel


3.Speed limit indication.
4. Speed
memorisation request.
5. Current speed of the vehicle.
6. Current speed setting.
Memorising the speed
► Switch on the speed limiter/cruise control.
The speed limiter/cruise control information is
displayed.


Upon detecting a sign suggesting a new speed
setting, the system displays the value and a

82
Driving
Adjusting the limit speed setting
You do not have to switch the speed limiter on in
order to set the speed.
To modify the limit speed setting based on the
vehicle’s current speed:
► Briefly press button 2 or 3 to change the
value in steps of + or - 1 mph (1.6 km/h).
► Press and hold button 2 or 3 to change the
value in steps of + or - 5 mph (8 km/h).
To modify the cruise speed setting based on the speed suggested by the Speed Limit Recognition
and Recommendation, as shown on the
instrument panel:
► Press button 5 once; a message is displayed
to confirm the memorisation request.
► Press button 5 again to save the suggested
speed.
The speed is immediately shown on the
instrument panel as the new speed setting.
Temporarily exceeding the
speed setting
► Press the accelerator pedal down fully.
The speed limiter is deactivated temporarily and
the displayed speed setting flashes.
Release the accelerator pedal to return to below
the programmed speed.
When the limit speed is exceeded but this is not
due to action by the driver (in case of a steep
slope, for example), an audible signal triggers
immediately.
message prompting you to save it as the new
speed setting. "MEM" flashes for a few seconds
on the display.
If there is a difference of less than 6 mph
(9 km/h) between the speed setting and
the speed displayed by the Speed Limit
Recognition and Recommendation, the
"MEM" symbol is not displayed.
►

Press button
2once to save the suggested
speed value.
A message is displayed to confirm the request.
►

Press button
2again to confirm and save the
new speed setting.
The display then reverts to its previous state.
Speed limiter
Refer to the General recommendations on the
use of driving and manoeuvring aids .
This system prevents the vehicle from
exceeding the speed programmed by the
driver (speed setting).
The speed limiter is switched on manually.
The minimum speed setting is 19 mph (30
km/h).
The speed setting remains in the system
memory when the ignition is switched off.
Steering mounted control

1. ON (LIMIT position) / OFF (position 0)
2. Reduce the speed setting
3. Increase the speed setting
4. Pause / resume speed limiter with the speed
setting previously stored
5. Use the speed suggested by the Speed Limit
Recognition and Recommendation (MEM
display)
For more information on the Speed Limit
Recognition and Recommendation , refer to
the corresponding section.
Information displayed on
the instrument panel


6. Speed limiter on/pause indication.
7. Programmed speed setting value.
8. Speed limiter mode selection indication.
Switching on/pausing
► Turn thumbwheel 1 to the "LIMIT" position to
select the speed limiter; the function is paused.
►

If you are satisfied with the limit speed setting
(most recent speed setting programmed in the
system), press button

4 to switch the speed
limiter on.
►

Pressing button 4

again temporarily pauses
the function.
An audible warning will sound if the vehicle's speed exceeds the speed
setting for an extended period.

86
Driving
Where the speed of your vehicle is too
high approaching another vehicle, the
first level of alert may not be displayed: the
level 2 alert may be displayed directly.
Important: the level 1 alert is not displayed
when there is a stationary obstacle or when
the "Close" trigger threshold has been
selected.
Modifying the alert trigger threshold
This threshold determines how you wish to be
warned of the presence of a moving or stationary
vehicle in front of you, or a pedestrian present in
your traffic lane.
The current threshold can be modified via the
vehicle configuration menu.
You can select one of three pre-defined
thresholds:
– "Distant",
– "Normal",
– "Close".
The last threshold selected is memorised when
the ignition is switched off.
Intelligent emergency
braking assistance
If the driver brakes, but not sufficiently to avoid a
collision, this system will supplement the braking,
within the limits of the laws of physics.
This assistance will only be provided if you press
the brake pedal.
– warns the driver that their vehicle is at risk of
collision with the vehicle in front or a pedestrian.
–

reduces the vehicle's speed to avoid a
collision or limit its severity

.
This system is comprised of three functions:
–

Collision
Risk Alert.
–

Intelligent emergency braking assistance.
–


Active Safety Brake (automatic emergency
braking).


The vehicle has a camera located at the top of
the windscreen.
This system does not avoid the need for vigilance on the part of the driver.
This system is designed to assist the driver
and improve road safety.
It is the driver's responsibility to continuously
monitor the state of the traffic, observing the
driving regulations.
As soon as the system detects a potential obstacle, it prepares the braking
circuit in case automatic braking is needed.
This may cause a slight noise and a slight
sensation of deceleration.
Operating conditions and
limits
The ESC system must not be faulty.
The ASR system must not be deactivated.
All passenger seat belts must be fastened.
Driving at a steady speed on roads with few
bends is required.
In the following cases, deactivating the system
via the vehicle's configuration menu is advised:
–

towing a trailer
,
–

carrying long objects on roof bars or roof rack,
–


with snow chains fitted,
–


before using an automatic car wash, with the
engine running,
–


before placing the vehicle on a rolling road in
a workshop,
–


towed vehicle, engine running,
–


Following
an impact to the windscreen close to
the detection camera.
The system is automatically deactivated after the use of the "space-saver" type
spare wheel is detected, or if a fault with the
lateral brake lamps is detected.
It is possible that warnings are not given,
are given too late or seem unjustified.
Consequently, always stay in control of your
vehicle and be prepared to react at any time
to avoid an accident.
After an impact, the function automatically stops operating. Contact a
CITROËN dealer or a qualified workshop to
have the system checked.
Collision Risk Alert
It warns the driver that their vehicle is at risk of
collision with the vehicle in front or a pedestrian
present in their traffic lane.
Operation
Depending on the degree of risk of collision
detected by the system and the alert trigger
threshold chosen by the driver, several different
levels of alert may be triggered and displayed on
the touch screen.
The system takes account of the vehicle
dynamics, the speed of your vehicle and the one
in front, the environmental conditions and the
operation of the vehicle (actions on the pedals,
the steering wheel, etc.) to trigger the alert at the
best moment.
Level 1 (orange): visual alert only,
indicating that the vehicle in front is very
close.
The message
"Vehicle close" is displayed.
Level 2 (red): visual and audible alert,
indicating that a collision is imminent.
The message "Brake! " is displayed.
Level 3: in some cases, a vibration alert in the
form of micro-braking can be given, confirming
the risk of collision.

88
Driving
The following situations may interfere with the operation of the system or
prevent it from working:
– lane markings absent, worn, hidden (snow,
mud) or multiple (roadworks);
– close to the vehicle ahead (lane markings
not detected);
– roads that are narrow, winding, etc.
Lane Departure Warning
System
Refer to the General recommendations on the
use of driving and manoeuvring aids .
This system, using a camera which recognises
solid or broken lines, detects the involuntary
crossing of longitudinal traffic lane markings on
the ground.
If the driver's attention drops and the speed
is higher than 37 mph (60 km/h), the system
triggers a warning if there is an unexpected
change of direction.
This system is particularly useful on motorways
and main roads.


Deactivation of the system is signalled by
the illumination of this warning lamp,
accompanied by the display of a message.
Malfunction
In the event of a fault with the system, you
are alerted by the fixed illumination of this
warning lamp, accompanied by the display of a
message and an audible signal.
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
Distraction detection
Refer to the General recommendations on the
use of driving and manoeuvring aids .
Take a break in case of feeling tired or at least
every 2 hours.
The function consists of the "Coffee Break Alert"
system combined with the "Driver Attention
Warning" system.
These systems are in no way designed to keep the driver awake or to prevent
the driver from falling asleep at the wheel.
It is the driver’s responsibility to stop if feeling
tired.
Activation / Deactivation
It is set via the Driving / Vehicle touch
screen menu.
The state of the system stays in the memory
when the ignition is switched off.
Coffee Break Alert
The system triggers an alert as soon as it detects that the driver has not taken a
break after two hours of driving at a speed above
40 mph (65
km/h).
This alert is issued via the display of a message
encouraging the driver to take a break,
accompanied by an audible signal.
If the driver does not follow this advice, the alert
is repeated hourly until the vehicle is stopped.
The system resets itself if one of the following
conditions is met:
–

With the engine running, the vehicle has been
stationary for more than 15 minutes.
–


The ignition has been switched off for a few
minutes.
–


The driver's seat belt is unfastened and their
door is opened.
As soon as the speed of the vehicle drops below 40 mph (65 km/h), the
system goes into standby.
The driving time is counted again once the
speed is above 40 mph (65
km/h).
Driver Attention Warning

Using a camera placed at the top of the
windscreen, the system assesses the
driver's level of vigilance, fatigue or distraction by
identifying variations in trajectory compared to
the lane markings.
This system is particularly suited to fast roads
(speed higher than 40 mph (65
km/h)).
At a first-level alert, the driver is warned by the
“Take care! ” message, accompanied by an
audible signal.
After three first-level alerts, the system triggers
a further alert with the message " Dangerous
driving: take a break", accompanied by a more
pronounced audible signal.
In certain driving conditions (poor road
surface or strong winds), the system may
give alerts independent of the driver's level of
vigilance.

94
Practical information
Compatibility 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 (depending on version):
approximately 47 or 50 litres (petrol) or
approximately 45 or 50 litres (Diesel).
Reserve level: approximately 5 litres.
Low fuel level
When the low fuel level is reached, this
warning lamp in the instrument panel
comes on, accompanied by an audible warning,
a message and the last bar of the fuel gauge
flashes in red.
When it first comes on, about 5 litres of fuel
remain in the tank.
This warning lamp will come on every time
the ignition is switched on, accompanied by a
message and an audible signal, until a sufficient
addition of fuel is made. This audible signal and
message are repeated with increasing frequency
as the fuel level drops and approaches " 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:
►

Y
ou must switch off the engine.

98
Practical information
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).
► 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: 80 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
systemI windscreen wipers, dipped beam
headlamps, courtesy lamps, etc. for a maximum
combined duration of about forty minutesK
Switching to the mode
A message indicating that the vehicle has
switched to economy mode is displayed on the
touch screen and the active functions are put on
standby.
If a telephone call is in progress at the
time, it will be maintained for around 10
minutes using your audio system’s hands-free
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:
–

for less than ten minutes, to use the
equipment for approximately five minutes,
–


for more than ten minutes, to use the
equipment for up to approximately thirty minutes.
Let the engine run for the duration specified to
ensure that the battery charge is sufficient.
Do not repeatedly and continuously restart the
engine in order to charge the battery

.
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 indicated by
engraved markings on the longitudinal bars.

100
Practical information
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a CITROËN dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the
ignition is switched on (for vehicles equipped
with an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
► Grasp the dipstick by its coloured grip and
pull it out completely.
► Wipe the end of the dipstick using a clean,
lint-free cloth.


► 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.
Petrol engine

Diesel engine

1.
Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery / Fuses
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
The Diesel fuel system operates under
very high pressure.
All work on this circuit must be carried out
only by a CITROËN dealer or a qualified
workshop.
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
Take care when working under the bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.