mph CITROEN C4 2023 Service Manual

137
Driving
6As soon as the speed of the vehicle drops below 43 mph (70 km/h), the
system goes into standby.
Driving time starts being counted again once
the speed reaches above 43
mph (70 km/h).
Driver Attention Warning
Depending on version, the Coffee Break Alert
system may be combined with the Driver
Attention Warning system.


The system assesses the driver's level of alertness, fatigue and distraction by
identifying trajectory changes in relation to the
lane markings.
To do this, the system uses a camera, placed on
the upper part of the windscreen.
This system is particularly suited to fast roads
(speed higher than 43 mph (70
km/h)).
At a first alert level, the driver is warned by
the message "Caution!", accompanied by an
audible signal.
After three first-level alerts, the system triggers
a further alert with the message " Driving at
risk: 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.
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.
Parking sensors
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This system detects and signals the proximity of
obstacles (e.g.
pedestrian, vehicle, tree, barrier)
using sensors located in the bumper.
Rear parking sensors
► Engage reverse gear to start the system
(confirmed by an audible signal).
The system is switched off when reverse gear is
disengaged.
Audible assistance

The system signals the presence of obstacles
which are both within the sensors’ detection zone
and in the vehicle path defined by the direction of
the steering wheel.
The proximity information is given by an
intermittent audible signal, the frequency of
which increases as the vehicle approaches the
obstacle.
When the distance between the vehicle and
the obstacle becomes less than about thirty
centimetres, the audible signal becomes
continuous.
The sound emitted by the speaker (right or
left) indicates the side on which the obstacle is
located.

138
Driving
Adjusting the audible signal
(With MyCitroën Drive or MyCitroën
Drive Plus)
Pressing this button opens the window
for adjusting the volume of the audible
signal.
Visual assistance

This supplements the audible signal, without
taking account of the vehicle's trajectory, by
displaying bars on the screen that represent the
distance between the obstacle and the vehicle
(white: more distant, orange: close, red: very
close).
When the obstacle is very close, the "Danger"
symbol is displayed on the screen.
Front parking sensors
Supplementing the rear parking sensors, the
front parking sensors are triggered when an
obstacle is detected in front and the speed of the
vehicle is below 6 mph (10
km/h).
Front parking sensor operation is suspended if
the vehicle stops for more than three seconds in
forward gear, if an obstacle is no longer detected
or the vehicle speed exceeds 6 mph (10 km/h).
The sound emitted by the speaker (front or rear) locates the obstacle relative to
the vehicle, in front or behind it.
Side parking sensors

Using four additional sensors located on the
sides of the bumpers, the system records the
position of obstacles during the manoeuvre and
indicates them when they are located alongside
the vehicle.
Only fixed obstacles are indicated
correctly. Moving obstacles detected at
the beginning of the manoeuvre may be
indicated mistakenly, while moving obstacles
that appear alongside the vehicle but were
not previously recorded will not be indicated.
Objects memorised during the
manoeuvre will no longer be stored after
switching off the ignition.
Deactivation/Activation
(Depending on country of sale)
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The settings are changed via the Driving
touch screen menu.
With MyCitroën Drive
The settings are changed via the Vehicle
touch screen menu.
With MyCitroën Drive Plus
The settings are changed via the ADAS
touch screen application.
If the function is deactivated, this indicator
lamp lights up on the instrument panel.
The system status is saved when the ignition is
switched off.


The rear parking sensors are deactivated automatically if a trailer or bicycle carrier
is connected to a towing device installed in
accordance with the Manufacturer's
recommendations.
In this case, the outline of a trailer is displayed
at the rear of the image of the vehicle.

140
Driving




The screen is divided into two parts with a
contextual view and a view from above the
vehicle in its close surroundings.
The parking sensors supplement the information
on the view from above the vehicle.
Various contextual views may be displayed:
–
Standard view
.
–

180° view
.
–

Zoom view
.
AUTO mode is activated by default.
In this mode, the system chooses the best
view
to display (standard or zoom).
You can change the type of view at any time
during a manoeuvre.
►

Press the button in the bottom left-hand
corner of the touch screen.
►


Select the type of view:
•

"Standard view".
•
"180° view". •
"Zoom view".
• "AUTO view".
The display is immediately updated with the type
of view selected.
The system status is not saved when the ignition
is switched off.
Operating principle

Using one or two cameras, the close
surroundings of the vehicle are recorded whilst
manoeuvring at low speed.
An image from above your vehicle in its close
surroundings is reconstructed (represented
between the brackets) in real time and as the
manoeuvre progresses.
It facilitates the alignment of your vehicle when
parking and allows obstacles close to the vehicle
to be seen. It is automatically deleted if the
vehicle remains stationary for too long.
With 360 Vision, the image is created using
both cameras, when going forward and when
reversing.
When the function is activated, it is possible
that the view from above is not displayed. If the system is activated when the vehicle has
already moved, the view from above can be fully
displayed.
Top Rear Vision
Rear view

To activate the camera located near the number
plate lamps, engage reverse gear and do not
exceed a speed of
6 mph (10 km/h).
The system is deactivated:
–

Automatically
, at speeds above approximately
12 mph (20
km/h),
–

Automatically
, if the boot is opened.
–

When changing out of reverse gear
.
–

By pressing the white arrow in the upper-left
corner of the touch screen.

142
Driving
offering views from the rear of the vehicle (rear
vision) when reverse gear is engaged and views
from the front of the vehicle (front vision) when
the gearbox is in neutral or a gear is engaged.
Rear vision

The system activates automatically when
reverse gear is engaged.
The system is deactivated:
–
Automatically
, at speeds above approximately
12 mph (20
km/h),
–

when shifting out of reverse (the rear view
image is replaced by the front view image after
7 seconds).
–


By pressing the white arrow in the upper-left
corner of the touch screen.
If a trailer or a bicycle carrier is fitted to
the towball, the area behind the vehicle
on the view from above goes dark.
The surroundings are reconstructed by the
front camera only. The rear vision views are similar to those for the
Top Rear Vision function.
For more information on the
Top Rear
Vision

function, refer to the corresponding
section.
Front and rear vision

With the engine running and the speed
below 12 mph (20 km/h), the system is
activated via the Driving/Vehicle touch screen
menu:
►

Select "
Visual parking assistance".
AUTO mode is displayed by default, with front
vision, if the gearbox is in neutral or with a
gear engaged, or with rear vision, if reverse is
engaged.
The system is deactivated:
–

Automatically above about 19 mph (30
km/h)
(the image disappears temporarily from 12 mph
(20

km/h)).
–

By pressing the white arrow in the upper-left
corner of the touch screen.
AUTO mode

This mode is activated by default.
Using sensors in the front bumper, the automatic
view changes from the front view (standard) to
the view from above (zoom) as an obstacle is
approached during a manoeuvre.
Standard view

The area in front of your vehicle is displayed on
the screen.
The orange lines 1 represent the width of your
vehicle, with the mirrors unfolded; their direction
changes according to the position of the steering
wheel.

145
Driving
6Panoramic view

The panoramic view allows you to leave, in
reverse, a parking space by anticipating the
arrival of vehicles, pedestrians or cyclists.
This view is not recommended for carrying out a
complete manoeuvre.
This view is only available by selection in the
side menu.
360 Vision
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .
This system allows you to view your vehicle's
close surroundings on the touch screen using
cameras, located at the front and rear of the
vehicle.




The screen is divided into 4 parts with two side
menus, a contextual view and a view from above
the vehicle in its close surroundings.
The parking sensors supplement the information
in the view from above the vehicle.
Depending on the view angle chosen in the
left-hand side menu, the system provides
specific visual assistance in particular driving
conditions, such as entering a blind intersection
or manoeuvring in areas with reduced visibility.
Different contextual views are available for the
rear or for the front:
–
Automatic zoom view
.
–

Standard view
.
–

Panoramic view
.
Depending on the context, the system chooses
the best view to display (standard or automatic
zoom).
The view type can be changed at any time
during the manoeuvre.
The system status is not saved when the ignition
is switched off.
Operating principle
Reconstructed view
The cameras are activated and a reconstruction
of a view from above your vehicle in its close
surroundings is displayed on the touch screen.
Live view

The front and rear views automatically appear in
the view from above the vehicle.
It is also possible to display any live view by
selecting the corresponding zone.
The front view can be selected in forward gear
up to 10 mph (16 km/h).
Installing the very cold climate screen
can alter the image transmitted by the
front camera.
An additional jet is fitted above the number plate to clean the reversing camera (depending on
version).
►

The washing of the reversing camera is
triggered by operating the rear screenwash.
Settings
In the side menu, this menu allows you to
carry out the following operations:

146
Driving
– adjust the volume of the audible signal.
– adjust the brightness.
–

adjust the contrast.
Activation/Deactivation
Automatic
With the rear camera, engine running and
vehicle stationary, rear vision is displayed
automatically if reverse gear is engaged.
With the front camera, engine running and speed
below 10 mph (16 km/h), rear vision is displayed
automatically if a gear is engaged.
Manual
► In the ADAS touch screen application,
select Functions>Panoramic Camera.
The system is deactivated:
–

automatically for the rear
, when changing out
of reverse gear.
–

automatically for the front, above
approximately 10 mph (16 km/h).
–


by pressing the cross in the top left-hand
corner of the touch screen.
Automatic zoom view

The front or rear camera records the
surroundings during the manoeuvre to create
a front or rear view from above the vehicle in
its close surroundings, making it possible to
manoeuvre the vehicle around the surrounding
obstacles.
Using the sensors located on the front or
rear
bumper, the automatic zoom view is
displayed when approaching an obstacle at the
red line (less than 30 cm) during the manoeuvre.
This view is only available automatically.
Depending on version, it can be activated/
deactivated in the ADAS application of the touch
screen.
Obstacles may appear further away than
they actually are.
It is important to monitor the sides of the
vehicle during the manoeuvre, using the
mirrors.
Parking sensors also provide additional
information about the area around the vehicle.
Standard view

Depending on the context, the area behind or in
front of your vehicle is displayed on the screen.
The blue lines (at the rear)/orange lines (at the
front) 1 represent the width of your vehicle, with
the mirrors unfolded;
their direction changes
according to the position of the steering wheel.
The red line 2 represents a distance of 30 cm
from the rear or front bumper; the two blue lines
(at the rear)/orange lines (at the front)

3
and
4
represent 1 m and 2 m respectively.
This view is available automatically or by
selection in the left-hand side menu.
Panoramic view

The rear or front panoramic view allows you to
leave a parking space by anticipating the arrival
of vehicles, pedestrians or cyclists.
This view is not recommended for carrying out a
complete manoeuvre.
This view is only available by selection in the left-
hand side menu.
Park Assist
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .

147
Driving
6This system provides active parking assistance:
it detects a parking space and then steers in the
appropriate direction to park in the space while
the driver controls the driving direction, gear
changes, acceleration and braking.
To help the driver monitor the manoeuvre, the
system automatically triggers the display from
the Top Rear Vision or 360 Vision function and
activates the parking sensors.
The system measures the available parking
spaces and calculates the distances to obstacles
using ultrasonic sensors built into the front and
rear bumpers of the vehicle.


The system assists with the following
manoeuvres:
A.Entering a "parallel" parking space
B. Leaving a "parallel" parking space
C. Entering a "bay" parking space
Operation
► When approaching a parking area, reduce
the speed of your vehicle to 19 mph (30 km/h)
or less.
Activating the function
With MyCitroën Play or MyCitroën Drive
The function is activated in the Vehicle/ Driving touch screen menu.
Select "Park Assist".
With MyCitroën Drive Plus
► In the ADAS touch screen application,
select Functions>Park Assist.
Activating the function deactivates the Blind spot monitoring system.
You can deactivate the function at any time until the parking space entry or exit
manoeuvre begins, by pressing the arrow or
the cross located in the top left-hand corner of
the display page.
Selecting the type of manoeuvre

With MyCitroën Play or MyCitroën Drive


With MyCitroën Drive Plus
A manoeuvre selection page is displayed on the
touch screen: by default, the "Entry" page if the
vehicle has been running since the ignition was
switched on, otherwise, the " Exit" page.
►

Select the type and side of the manoeuvre to
activate the parking space search.
The selected manoeuvre can be changed at
any time, even while searching for an available
space.
Depending on audio equipment, this
indicator lamp comes on to confirm the
selection.
Parking space search
► You should drive at a distance of between
0.50 m and 1.50 m from the row of parked
vehicles, without ever exceeding 19
mph
(30
km/h), until the system finds an available
space.
The parking space search is suspended at
higher speeds. The function is automatically
deactivated if the vehicle speed exceeds 31 mph
(50
km/h).

148
Driving
For ''parallel'' parking, the space must at
a minimum be equal to the length of your
vehicle plus 0.60 m.
For ''bay'' parking, the width of the space
must be equal to the width of your vehicle
plus 0.70 m.
If the parking sensors function has been
deactivated in the touch screen, it will be
automatically reactivated when the system is
activated.


When the system finds an available space, " OK"
is displayed on the parking view, accompanied
by an audible signal.
Preparing for the manoeuvre
► Move very slowly until the request to stop
the vehicle is displayed, accompanied by the
"
STOP" sign and an audible signal.
Once the vehicle has stopped, an instructions
page is displayed on the screen. ►

T
o prepare for the manoeuvre, follow the
instructions.
The start of the manoeuvre is indicated by a
message, accompanied by an audible signal.
The Top Rear Vision or Vision 360 function
and the parking sensors are automatically
activated to help you monitor your vehicle's close
surroundings during the manoeuvre.
During the manoeuvre
The system controls the vehicle’s steering. It
gives instructions on the manoeuvring direction
when starting "parallel" entry and exit parking
manoeuvres, and for all "bay" entry manoeuvres.
With MyCitroën Play or MyCitroën Drive
These instructions are displayed as a symbol
accompanied by a message:
"Move backwards".
“Go forwards".
The manoeuvring status is indicated by these
symbols:
Manoeuvre in progress (green).
Manoeuvre cancelled or finished (red).
The arrows indicate that the driver must
take back control of the vehicle.
With MyCitroën Drive Plus
These instructions are displayed as a symbol
accompanied by a message:
"Drive backwards".
“Drive forwards".
The manoeuvring status is indicated by these
symbols:
Manoeuvre pending.
Manoeuvre in progress (green).
Manoeuvre finished or aborted.
The hands on the steering wheel indicate
that the driver must take back control of the
vehicle.
The maximum speed during manoeuvres is
indicated by this symbol:
53 mph or 5 km/h (for parking space entry,
the manoeuvre is possible up to 5 mph or
7

km/h)
During manoeuvring phases, the steering
wheel performs rapid turns: do not hold
the steering wheel or put your hands between
the spokes of the steering wheel. Watch out
for any objects that could interfere with the
manoeuvre (loose clothing, scarf, tie, etc.).
Risk of injury!
It is the driver's responsibility to constantly
monitor the traffic, especially vehicles coming
towards you.
The driver should check that no objects or
people are obstructing the vehicle’s path.

149
Driving
6The images from the camera(s) displayed on the touch screen may be
distorted by the terrain.
In shady areas, or in inadequate sunlight
or lighting conditions, the image may be
darkened and with lower contrast.
The manoeuvre can be permanently interrupted
at any time, either by the driver or automatically
by the system.
Interruption by the driver can be done by:
–

taking over control of the steering.
–


activating the direction indicator lamps on the
opposite side to that of the manoeuvre.
–


unfastening the seat belt.
–


switching off the ignition.
The manoeuvre is automatically interrupted by
the system in the following cases:
–


vehicle exceeding the speed limit of
5


mph (7 km/h) during parking space entry
manoeuvres, or 3
mph (5 km/h) during parking
space exit manoeuvres.
–

activation of anti-slip regulation on a slippery
road.
–


opening of a door or the boot.
–


engine stall.
–


system malfunction.
–


after 10 manoeuvres to enter or exit a parallel
parking space and after 7 manoeuvres to enter a
parking bay

.
Interrupting the manoeuvre automatically
deactivates the function. Depending on audio equipment, the manoeuvre
symbol is displayed in red, accompanied by the
"Manoeuvre cancelled" message on the touch
screen.
A message prompts the driver to take back
control of the vehicle.
The function is deactivated after a few seconds
and returns to the initial display.
Depending on audio equipment, this
indicator lamp goes off.
End of the parking space entry or exit
manoeuvre
The vehicle stops as soon as the manoeuvre is
completed.
Depending on audio equipment, the manoeuvre
symbol is displayed in red, accompanied by the
message "Manoeuvre completed" on the touch
screen.
Depending on audio equipment, when the
function is deactivated, this indicator lamp
goes off, accompanied by an audible signal.
When entering a parking space, the driver may
be required to complete the manoeuvre.
Operating limits
– The system may suggest an inappropriate
parking space (parking prohibited, work in
progress with damaged road surface, location
alongside a ditch, etc.).
–

The system may indicate that a space has
been found but will not offer it because of a fixed
obstacle on the opposite side of the manoeuvre,
which would not allow the vehicle to follow a
trajectory required for parking.
–

The system may indicate that a space has
been found but the manoeuvre will not be
triggered, because the width of the lane is
insufficient.
–


The system is not designed for performing the
parking manoeuvre on a sharp bend.
–


The 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.).
–


If the boot is heavily loaded, the tilt of the
vehicle towards the rear may interfere with the
distance measurements.
Do not use the function under the
following exterior conditions:
–

Alongside a soft shoulder (e.g. ditch) or
quay or on the edge of a drop.
–


When the road surface is slippery (e.g. ice).
If any of the following malfunctions
occurs, do not use the system:
–

If a tyre is under-inflated.
–


If one of the bumpers is damaged.
–


If one of the cameras is faulty
.

168
Practical information
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.
Sunroof
Check that the load does not pass below
the roof bars so that it does not impede the
movements of the sunroof - risk of major
damage!
Direct fitting on roof

The transverse bars must only be fixed at the
four anchorage points located on the roof frame.
These points are concealed by the vehicle doors
when the doors are closed.
The roof bar fixings have a stud which must be
inserted into the opening of each anchorage
point.
Snow chains
In wintry conditions, snow chains improve
traction as well as the behaviour of the vehicle
when braking.
Snow chains must be fitted only to the
front wheels. They must never be fitted to
"space-saver" type spare wheels.
Observe the legislation in force in your
country relating to the use of snow
chains and maximum authorised speeds.
Use only chains designed to be fitted to the type
of wheel fitted to the vehicle:
Original tyre size Chain type 215/65 R16 Polaire XP9 120
(9
mm)
215/60 R17 Polaire XP9 120
(9
mm)
195/60 R18 Polaire PSS 112
(10
mm)
For more information on snow chains, contact a
dealer or a qualified workshop.
Installation tips
► To fit the snow chains during a journey, stop
the vehicle on a flat surface at 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 snow 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 you
practise fitting the snow chains on a level
and dry surface before setting off.
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.
Energy economy mode
This system manages the duration of use of
certain functions, in order to conserve a sufficient
level of charge in the battery with the ignition off.
After switching off the engine and for a maximum
cumulative period of around 30 minutes, you can