ESP CITROEN C5 2021 Repair Manual

124
Driving
– Towing or with a bicycle carrier on a towing
device, especially with trailer not plugged in or
not approved.
–
Adverse weather conditions.
–


Road with low grip (risk of aquaplaning,
snow

, ice).
–

Road works and toll areas.
–


Driving on racing circuits.
–


Driving on a rolling road.
If the system detects that the driver is not
holding the steering wheel enough, it
triggers a series of progressive alerts and
then, if there is no response from the driver,
the system deactivates itself.
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel,
accompanied by the display of a message and
an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Active Safety Brake with Collision Risk Alert and
Intelligent emergency
braking assistance
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This system:
–
warns the driver that their vehicle is at risk of
collision with the preceding vehicle, a pedestrian
or a cyclist.
–

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

.
The speed will be reduced by a maximum of 16 mph (25 km/h) (versions
with camera only) or by a maximum of 31
mph (50 km/h) (versions with camera and
radar).
The system also takes motorcyclists into account. It may also react on animals.
Animals (especially animals smaller than
0.5

m) and objects on the road are not
necessarily detected.
This system includes three functions:
– Collision Risk Alert.
–

Intelligent emergency braking assistance
(iEBA).
–


Active Safety Brake (automatic emergency
braking).


The vehicle has a multifunction camera located
at the top of the windscreen and, depending on
version, a radar located in the front bumper.
This system does not replace the need for driver vigilance.
This system is designed to assist the driver
and improve road safety.
It is the driver's responsibility to continuously
monitor traffic conditions in accordance with
applicable driving regulations.
As soon as the system detects a potential collision, it prepares the braking
circuit. This may cause a slight noise and a
slight sensation of deceleration.

125
Driving
6Deactivation/Activation
By default, the system is automatically activated
at every engine start.
It is configured in the ADAS touch screen
application.
Deactivation of the system is signalled by
the illumination of this warning lamp,
accompanied by the display of a message.
Operating conditions and
limits
Vehicle moving forward without trailer.
Brake system operational.
ASR / ESP system activated.
Seat belts fastened for all passengers.
Stabilised speed on roads with no or low
curvature.
This warning lamp lights up on the instrument panel without any additional
message, to indicate that the “automatic braking
system” is not available. This is a normal
behavior indicating that a condition is not fulfilled
and which does not request the support of a
workshop.
In any situations with ignition on where automatic
braking presents a risk, deactivating the
system via ADAS touch screen application is
recommended, for instance:
–

T

owing a trailer (particularly a trailer without its
own braking system).
–

Carrying long objects on roof bars.
–


Driving with snow chains.
– Using an automatic car wash.
– Performing any maintenance (e.g. changing a
wheel, working underhood).
–

Placing the vehicle on a rolling bench in a
workshop.
–


T
owing the vehicle.
–

Following a front bumper deformation (version
with radar).
–


Following
an impact to the windscreen close to
the detection camera.
The system is automatically deactivated if:
–

A

spare wheel with a too small diameter is
detected.
–

A

fault with the brake pedal switch or with
the right or left brake lamp is detected.
–

A

fault in the sensors, in the electronic or in
the brake system is detected.
–

A

trailer is detected by the equipped vehicle
hitch (with an electrical connection plug).
The system diagnoses permanently its capability and may inhibit itself without
specific driver indication, if the system is
outside of the regular operating conditions.
Examples: sensor initialization, board voltage
out of regular range, activation of stability
system…
Therefore the system may not be available
just after starting the vehicle.
It can be dangerous to drive if the brake
lamps are not in perfect working order.
The driver must not load his vehicle excessively (respect of MTAC values,
MTRA values and loading height on roof
bars).
Following an impact (e.g. a collision), the
system is automatically deactivated.
Have it checked by a CITROËN dealer or a
qualified workshop.
Collision Risk Alert
This function warns the driver if there is a risk
of collision with the preceding vehicle, or with a
pedestrian or cyclist.
Modifying the alert trigger threshold
The trigger threshold determines the sensitivity
with which the function warns of the risk of
collision.
It is configured in the ADAS touch screen
application.
►

Select one of the 3 preset thresholds: “ Far

”,
“Medium” or “Near”.
The selected threshold is memorised when the
ignition is switched off.
Operation
Depending on the collision risk detected by the
system and the alert trigger threshold chosen

127
Driving
6Operation
The system operates subject to the following
conditions:
–
The vehicle's speed does not exceed 50
mph (80 km/h) when a pedestrian or a cyclist is
detected.
–


The vehicle's speed does not exceed 50 mph
(80 km/h) when a stationary vehicle is detected.
–


The vehicle's speed is between 6 mph and
53 mph (10

km/h and 85 km/h) (versions with
camera only) or 87 mph (140 km/h) (versions
with camera and radar) when a moving vehicle
is detected.
This warning lamp flashes (for approximately 10 seconds) as soon as
the function applies the vehicle’s brakes. During
the flashing time, the function is not available.
In the event of automatic emergency braking,
keep the brake pedal depressed, also after a
complete stop is reached, to prevent the vehicle
from rolling away.
The driver can override the "automatic emergency braking" at any time by firmly
turning the steering wheel and/or firmly
depressing the accelerator pedal.
The brake pedal may feel hard and vibrate slightly while the function is
operating.
If the vehicle comes to a complete stop,
automatic braking is maintained for 1 to 2
seconds.
Turning scenarios
Crossing road with another vehicle

The system may operate when the vehicle is
turning and detects another vehicle, on the
adjacent lane, approaching from the opposite
direction if:
–

The corresponding direction indicator is
activated.
–


Then the vehicle is about to cross the path of
another vehicle.
–


The vehicle speed is between 3 and 12
mph
(5 and 20
km/h).
–

A
collision on the side of the other vehicle is
probable.
Crossing road with a pedestrian

The system may operate when the vehicle
is turning left or right and detects a crossing
pedestrian if:
–

The pedestrian is crossing in front of the
vehicle.
–


The pedestrian can clearly be detected by the
sensors.
–


The scenery is detectable by the sensors (e.g.
brightness, contrast vs background).
–


The vehicle speed is between 3 and 15
mph
(5 and 25
km/h).
Malfunction
This warning lamp lights up on the instrument panel with the message
"Sensor blind" in certain cases. With the variant
"camera only", the system is deactivated. With
the variant "camera and radar", the system may
continue to operate in a degraded mode. This
may be caused by a reduced visibility (rain, fog,
snow, blending by low sun…) or by a real sensor
blockage. In this case, stop the vehicle and verify

128
Driving
if the front camera or the front radar is covered
by dirt, snow, ice or anything preventing the
sensing.
In the event of a malfunction, this warning
lamp lights up on the instrument panel,
accompanied by the display of a message and
an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
If these warning lamps come on
after the engine has been switched
off and then restarted, contact a CITROËN
dealer or a qualified workshop to have the
system checked.
These warning lamps light up on the instrument panel and/or in the
warning lamp display for seat belts and front
passenger airbag to indicate that the driver's
and/or front passenger's seat belt is not fastened
(depending on version). The automatic braking
system is deactivated until the seat belts are
fastened.
Distraction detection
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .
The function comprises 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.
Take a break if you are feeling tired or at least
every 2 hours.
Activation/Deactivation
By default, the function is automatically activated
at every engine start.
It is configured in the ADAS touch screen
application.
Coffee Break Alert
The system triggers an alert when it detects that the driver has not taken a
break after two hours of driving at a speed above
43 mph (70
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 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

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

130
Driving
Driving situations and related alerts
The table below describes the alerts and messages displayed in different driving situations.
The actual order of display of these alerts may be different.
Function statusIndicator lampComments
OFF

Function deactivated.
ON None.System active, conditions not met:
–

Speed below 40 mph (65
km/h).
–

No lane marking recognised.
–


Operation of ESC system triggered.
–


"Sporty" driving.
ON

Automatic deactivation/standby of the function (e.g. detection of a trailer,
use of the "space-saver" type spare wheel supplied with the vehicle,
malfunction).
ON None.Lane marking detected.
Speed above 40 mph (65
km/h).
ON


The system corrects the trajectory on the side where the risk of
unintentional crossing is detected. The driver's hands are on the steering
wheel.
ON




"Hold the steering wheel " or
"Stay in lane" (depending on version). –

If, while correcting the trajectory
, the system determines that the
correction will not be enough and that a solid line will be crossed: the\

driver is warned that they must provide additional trajectory adjustment\
.
–
If the steering wheel is not held properly
, an audible warning sounds,
accompanied by a message, until the trajectory correction is completed o\
r
the driver has grasped the steering wheel correctly.
The duration of audible warnings will increase if multiple corrections a\
re
performed in quick succession. The warning will become continuous,
persisting until the driver responds.

131
Driving
6Operating limits
The system goes into standby automatically in
the following cases:
–
ESC deactivated or operation triggered.
–


Speed below 40 mph (65
km/h) or greater
than 112 mph (180
km/h),
–

Electrical connection of a trailer
.
–

Use of a"space-saver" spare wheel detected
(as detection is not immediate, deactivation of
the system is recommended).
–


Dynamic driving style detected, pressure on
the brake or accelerator pedal.
–


Driving over lane markings.
–


Activation of the direction indicators.
–


Crossing the inside line on a bend.
–


Driving on a tight bend.
–


Inactivity by the driver detected during
correction.
–


Narrow lane detected.
The following situations may interfere with the operation of the system or
prevent it from working:
–

Insufficient contrast between the road
surface and the side of the road (e.g. shade).
–


Lane markings worn, hidden (snow
, mud)
or multiple (roadworks, etc.),
–

Running close to the vehicle in front (the
lane markings may not be detected).
–


Roads that are narrow
, winding.
Risk of undesirable operation
The system should be deactivated in the
following situations:
–
When changing a wheel or working near a
wheel.
–


T
owing or with a bicycle carrier on a towing
device, especially with trailer not plugged in or
not approved.
–

Road in poor condition, unstable or with very
poor grip (risk of aquaplaning, snow

, ice).
–

Adverse weather conditions.
–


Driving on racing circuits.
–


Driving on a rolling road.
Deactivation/Activation
By default, the system is automatically activated
at every engine start.
It is configured in the ADAS touch screen
application.
or
Direct access to the Shortcuts for driving aids .
Deactivation is confirmed by the
illumination of this indicator lamp on the
instrument panel.
Malfunction
In the event of a malfunction,
these warning lamps light up on
the instrument panel, accompanied by the
display of a message and an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Long-distance blind spot
monitoring
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This system warns the driver of vehicles
approaching rapidly from the rear in adjacent
lanes (up to around 75 m) and of the presence of
a vehicle in the blind spots of their vehicle, using
corner radars located in the rear bumper.
This system takes into account vehicles
such as cars, lorries and motorcycles by
monitoring the blind spots or areas hidden
from the driver's field of vision.

135
Driving
6The system is deactivated:
– when changing out of reverse gear .
–

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

The rear camera records the surroundings
during the manoeuvre to create a 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 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.
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

The area behind the vehicle is displayed on the
screen.
The blue lines 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 bumper; the two blue lines 3 and 4
represent 1
m and 2 m, respectively.
This view is available automatically or by
selection in the side menu.
Panoramic 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, as well as under the door mirrors.




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.

136
Driving
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
Reconstituted 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, rear and side views automatically
appear in the view from above the vehicle.
It is also possible to display any view directly 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.
Configuration
In the side menu, this menu allows you to
carry out the following operations:
–

volume adjustment of the audible signal.
–


brightness adjustment.
–


contrast adjustment.
–


activation/deactivation of camera washing
(depending on version).
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), front 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 touch screen
application.
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.

137
Driving
6Standard 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.
Side views
The left-hand/right-hand side view allows you to
view the surroundings of each side of the vehicle
(e.g.
pavement, low wall, other vehicle parked
next to it).


► Select the relevant view in the view from
above the vehicle.
The selected area turns yellow and the side view
appears in the middle of the screen.
This view is not recommended for carrying out a
complete manoeuvre.
Rear traffic alert
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


When engaging reverse gear with the engine
running, or when reversing at up to 6
mph
(10
km/h), this system warns of approaching
obstacles (e.g.
pedestrian, cyclist, vehicle, truck,
motorcycle) in the rear blind spots of the vehicle,
using the radars installed in the bumper.
The system detects obstacles moving at more
than 2
mph (3 km/h) at a maximum distance of
40
m.
The system operates in addition to the Parking
sensors, Top Rear Vision or 360 vision functions
(depending on version).
For more information about the Parking
sensors, Top Rear Vision or 360 vision
functions, refer to the corresponding sections.
The driver must monitor their surroundings before and during the
whole manoeuvre. Drive slowly and carefully
in reverse gear in case of reduced or no
visibility.

140
Practical information
Compatibility of fuels
Petrol fuels conforming to the EN228 standard
containing up to 5% and 10% ethanol
respectively.
The only petrol fuel additives authorised for use are those that meet the B715001
standard.
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: approximately 53 litres
(Petrol) or 40 litres (Rechargeable hybrid).
Reserve level: approximately 6 litres.
Low fuel level
When the low fuel level is reached, this
warning lamp lights up on the instrument
panel, accompanied by the display of a message
and an audible signal. When it first comes on,
about 6 litres of fuel remain.
Until sufficient fuel is added, this warning lamp
appears every time the ignition is switched on,
accompanied by the message and the audible
signal. When driving, this message and audible
signal are repeated with increasing frequency as
the fuel level drops towards 0.
You must refuel as soon as possible to avoid
running out of fuel.
A small arrow by the warning lamp indicates on which side of the vehicle the
fuel filler flap is located.
Stop & Start
Never refuel with the engine in STOP
mode; you must switch off the ignition.
Refuelling
Any addition of fuel must be in quantities of at
least 10 litres, in order to be registered by the
fuel gauge.
Opening the filler flap may create a noise caused
by an inrush of air. This vacuum is entirely
normal, resulting from the sealing of the fuel
system.
The filler cap is built into the filler
flap or must be
unscrewed (depending on version).
To refuel in complete safety:
►

Y
ou must switch off the engine.


► To open the filler flap, press the flap opening
button or press the rear edge of the filler flap
(depending on version).
Rechargeable hybrid vehicles
After pressing the button, it may take a
few minutes for the filler flap to open.
If the flap becomes stuck, press and hold the
button for more than 3
seconds.
►

T

ake care to select the pump that delivers the
correct fuel type for the vehicle's engine (see a
reminder label on the inside of the filler flap).


► Turn the filler cap to the left, remove it
and place it on its support on the filler flap
(depending on version).
►

Insert the filler nozzle and push it in as far as
possible before starting to refuel (to minimise the
risk of splashing).