2015 Citroen C5 sensor

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Tyre under-inflation detection
System which automatically checks the
pressures of the tyres while driving.
The system continuously monitors the
pressures of the four tyres, as soon as the
vehicle is moving.The tyre under-inflation detection
system is an aid to driving which does
not replace the need for vigilance on
the part of the driver. This system does not avoid the need
to check the tyre pressures regularly
(including the spare wheel) and before
a long journey.
Driving with under-inflated tyres
adversely affects road holding,
extends braking distances and causes
premature tyre wear, particularly under
arduous conditions (vehicle loaded,
high speed, long journey).
The tyre pressures for your vehicle can
be found on the tyre pressure label (see
the "Identification markings" section).
The tyre pressures must be checked
when the tyres cold (vehicle stopped
for 1 hour or after driving for less then
6 miles (10 km) at moderate speed).
Other wise, add 0.3 bar to the values
indicated on the label.
Driving with under-inflated tyres
increases fuel consumption.
A pressure sensor is located in the valve of
each tyre (except the spare wheel).
The system triggers an alert if a drop in
pressure is detected in one or more tyres.
driving

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The loss of pressure detected does not
always lead to visible deformation of the
tyre. Do not rely on just a visual check.The alert is maintained until the tyre or
tyres concerned is reinflated, repaired
or replaced.
The spare wheel (space-saver type or a
steel rim) does not have a sensor.
Under-inflation alert
The aler t is given by the fixed illumination
of this warning lamp, accompanied by
an audible signal, and depending on
equipment, the display of a message.
In the event of a problem on one of the tyres,
the symbol or the message appears, according
to equipment, to identify it.
F

R
educe speed, avoid sudden steering
movements or harsh brake applications.
F

S
top as soon as it is safe to do so. F

I
f you have a compressor (the one in the
temporary puncture repair kit for example),
check the four tyre pressures when cold.
I
f it is not possible to check the tyre
pressures at the time, drive carefully at
reduced speed.


or
F

I
n the event of a puncture, use the
temporary puncture repair kit or the spare
wheel (according to equipment).
Operating fault
The flashing and then fixed
illumination of the under-inflation
warning lamp accompanied by
the illumination of the service warning lamp
indicates a fault with the system.
In this case, monitoring of the tyre pressures is
not assured.
This alert is also displayed when one or more
wheels is not fitted with a sensor (for example,
a space-saver or steel spare wheel).
Go to a CITROËN dealer or a qualified
workshop
to have the system checked
or, following the repair of a puncture, to
have the original wheel, equipped with a
sensor, refitted.
Any tyre repair or replacement on a
wheel fitted with this system must be
carried out by a CITROËN dealer or a
qualified workshop.
If after changing a tyre, a wheel is not
detected by your vehicle (fitting snow
tyres for example), you must have the
system reinitialised by a CITROËN
dealer or a qualified workshop.
4
Driving

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Lane departure warning system
This system is particularly useful on motor ways
and main roads.
Activation
F Press this button, the indicator lamp comes on.
Deactivation
F Press this button again, the indicator lamp goes off.
The status of the system remains in the
memory when the ignition is switched off.
Detection
You are warned by the vibration of the driver's
seat cushion:
-

o
n the right-hand side, if the marking on
the ground has been crossed on the right,
-

o
n the left-hand side, if the marking on the
ground has been crossed on the left.
No warning is transmitted while the direction
indicator is active and for approximately
20 seconds after the direction indicator is
switched off.
A warning may be transmitted if a direction
marking (e.g. arrow) or non-standard marking
(e.g. graffiti) is crossed.
Operating fault
In the event of a malfunction, the service
warning lamp comes on, accompanied by an
audible signal and a message in the screen.
Contact a CITROËN dealer or a qualified
workshop.
System which detects the involuntary crossing
of longitudinal traffic lane markings on the
ground (solid or broken line).
Sensors, fitted below the front bumper, trigger
a warning if the vehicle drifts over a lane
marking (speed higher than 50 mph (80 km/h)).
The detection may be impeded:- if the sensors are dirty (mud, snow...),- if the markings on the ground are worn,
- if there is little contrast between the
markings on the ground and the road
sur face.
The lane departure warning system
cannot in any circumstances replace
the need for vigilance on the part of the
driver.
It is necessary to observe driving
regulations and take a break every two
hours.
Driving

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Parking space sensor
System which measures the parking space
available between two vehicles or obstacles. It
measures the size of the space and gives you
information on:
-
t
he possibility of fitting into a free space,
depending on the dimensions of your
vehicle and the distances necessary for
your manoeuvring,
-

t
he level of difficulty of the manoeuvre to
be performed.
The system does not measure spaces which
are clearly much smaller or larger than the size
of the vehicle. The parking space sensor function warning
lamp can have three different states:
-

o
ff: the function is not selected,
-

o
n fixed: the function is selected but the
conditions for measuring are not yet met
(direction indicator not operating, speed too
high) or the measurement is terminated.
-

f
lashing: measurement is in progress or
the message is being displayed. You can select the "parking space sensor"
function by pressing button A
. The fixed
illumination of the warning lamp indicates that
the function is selected.
During the measurement, the message
"Measurement in progress - Vmax 20 km/h
(12 mph)" is displayed in the instrument panel
screen.Displays in the instrument panel
4
Driving

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Operation
You have identified a parking space:
F P ress button A to select the function.
F

A
ctivate the direction indicator on the side
where the space is to be measured.
F

D
uring measurement, go for ward the
length of the space, at a speed less than
12 mph (approx. 20 km/h), to prepare for
your manoeuvre.
The system then measures the size of the space.
F

T
he system informs you of the level
of difficulty of the manoeuvre via a
message in the instrument panel screen
accompanied by an audible signal.
F

D
epending on the message issued by the
system, you may or may not be able to
per form the manoeuvre.The function displays the following types of message:
Parking YES
Parking DIFFICULT
Parking NO The function deselects itself automatically:
-

w
hen you engage reverse gear,
-
w
hen you switch off the ignition,
-
i
f measurement is not requested,
-
w
ithin five minutes of selection of the
function,
-
i
f the vehicle speed exceeds the threshold
of 45 mph (approx. 70 km/h) for one
minute.
If the lateral distance between your vehicle and
the parking space is too large, the system may
not be able to measure the space.
The function remains available after each
measurement and thus can measure more than
one space during your search.
In bad weather conditions or in winter, make
sure that the sensors are not covered by dirt, or
by ice or snow.
The parking space sensor function deactivates
the front parking sensors during space
measurement when you are in for ward gear.
If there is a fault, have the system
checked by a CITROËN dealer or a
qualified workshop.
Driving

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Visual and audible front and/or rear parking sensors
The parking sensors are switched on:
- b y engaging reverse gear,
-

a
t a speed below 6 mph (10 km/h) in
forward gear.
This is accompanied by an audible signal and/
or displaying of the vehicle in the multifunction
screen.
The proximity information is indicated by:
-

a
n audible signal which becomes more
rapid as the vehicle approaches the
obstacle,
-

a d
iagram in the multifunction screen, with
blocks which move closer to the vehicle.
The obstacle is located in relation to the
emission of the audible signal by the speakers;
front or rear and right or left.
When the distance between the vehicle and
the obstacle is less than approximately thirty
centimetres, the audible signal becomes
continuous and/or the "Danger" symbol
appears, depending on the multifunction
screen version. The parking sensors are switched off
:
- w hen you exit reverse gear,
-

w
hen the speed is higher than 6 mph
(10 km/h) in for ward gear,
-

w
hen the vehicle has been stationary for
more than three seconds in for ward gear.
The parking sensors system cannot, in
any circumstances, replace the need for
vigilance on the part of the driver.
System consisting of proximity sensors, installed
in the front and/or rear bumper.
It detects any obstacle (person, vehicle, tree,
barrier...) located in front of or behind the
vehicle, however, it will not be able to detect
obstacles located immediately below the
b u m p e r.
An object, such as a stake, a roadworks cone
or any other similar object may be detected at
the start of the manoeuvre but may no longer be
detected when the vehicle moves nearer to it.
4
Driving

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In bad weather or in winter, ensure that the
sensors are not covered with mud, ice or snow.
When reverse gear is engaged, an audible
signal (long beep) indicates that the sensors
may be dirty.
When the speed of the vehicle is below about
6 mph (10 km/h), some sources of noise
(motorcycle, lorry, pneumatic drill, ...) may
trigger the audible parking sensor signals.
Reactivation
Deactivation
F Press button A , the warning lamp comes
on, the system is fully deactivated.
The system will be deactivated automatically
when a trailer is being towed or when a bicycle
carrier is fitted (vehicle fitted with a towbar or
bicycle carrier recommended by CITROËN).
F

P
ress button A again, the warning lamp
switches off, the system is reactivated.
Driving

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Bleeding the Diesel fuel filter
Protective cover
Removing the cover
Bleeding water from the
fuel filter
Bleed regularly (at each oil change).
To bleed the water, slacken the bleed screw or
the water in diesel fuel sensor, located at the
base of the filter.
Continue until all the water has flowed out.
Then tighten the bleed screw or the water
detection sensor.
HDi 115 and HDi 160 engines
F

P

ull the protective cover upwards to
remove it.
HDi 140 engine
F

R

emove the protective cover by first
unclipping at 3 , then 1 and 4.
F

U

nclip at 2 by pulling towards you,
then lift up.Refitting
F Firstly clip in at 2 .
F L ower and centre the cover.
F

C
lip in at 3 and 4 , pushing vertically and
gently from the rear.
F

C
lip in at 1 pushing vertically.
Practical information