engine CITROEN C5 AIRCROSS 2020 Handbook (in English)

192
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.
Cabin filter
Depending on the environment and
the use of the vehicle (e.g. dusty
atmosphere, city driving), change it
twice as often if necessar y .A clogged cabin filter may have an
adverse effect on the per formance of
the air conditioning system and generate
undesirable odours.
Air filter
Depending on the environment and
the use of the vehicle (e.g. dusty
atmosphere, city driving), change it
twice as often if necessar y
.
Oil filter
Change the oil filter each time the
engine oil is changed.
Particle filter (Diesel)
or The start of saturation of the particle
filter is signalled by the temporary
illumination of this warning lamp,
accompanied by a
message warning
of the risk of the filter clogging up.
As soon as the traffic conditions permit,
regenerate the filter by driving at a
speed of at
least 37
mph (60 km/h) until the warning lamp
goes off.
AdBlue (BlueHDi)
An alert is triggered once the reser ve level is
reached.
For more information on the AdBlue range
indicators , refer to the corresponding section.
To avoid the vehicle being immobilised as per
regulations, you must top up the AdBlue tank.
For more information on the Supply of
AdBlue , 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.
Only use products recommended by
CITROËN or products of equivalent quality
and specification.
In order to optimise the operation of
components as important as those in the
braking system, CITROËN selects and
offers very specific products.
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 any work on the 12 V batter y,
refer to the corresponding section.
Practical information

194
Headlamps and lamps
The headlamps have polycarbonate
lenses with a protective coating.
Do not clean them with a
dry or abrasive
cloth, nor with detergent or solvent
products.
Use a
sponge and soapy water.
The use of a
high pressure jet wash for
cleaning the headlamps, lamps and their
surrounds may damage the lacquer and
seals.
Observe the recommendations on
pressure and distance for jet washing.
First clean persistent stains with a
sponge
and warm soapy water.
Leather
Leather is a natural product. Appropriate
regular care and cleaning is essential for its
durability.
Refer to your vehicle's Maintenance and
Warranty guide for information on all the
special precautions to observe.
AdBlue® (BlueHDi)
To respect the environment and ensure
compliance with the Euro 6 standard, without
adversely affecting the per formance or fuel
consumption of Diesel engines, CITROËN
has taken the decision to equip its vehicles
with a
system that associates SCR (Selective
Catalytic Reduction) with a
Diesel particle filter
(DPF) for the treatment of exhaust gases.
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue
® is contained in
a
special tank holding about
17


litres.
Its capacity allows a

driving range of
approximately 5,600

miles (9,000 km), highly
dependent on your driving style.
An alert system is triggered automatically once
the reser ve level is reached: you can then drive
for a

further 1,500

miles (2,400 km) before the
tank is empty.
Driving with under-inflated tyres increases
fuel consumption. Non-compliant tyre
pressure causes premature wear on tyres
and has an adverse effect on the vehicle's
road holding – risk of an accident!
Driving with worn or damaged tyres reduces
the braking and road holding per formance of
the vehicle. It is recommended to regularly
check the condition of the tyres (tread and
sidewalls) and wheel rims as well as the
presence of the valves.
Using different size wheels and tyres from
those specified can affect the lifetime of
tyres, wheel rotation, ground clearance, the
speedometer reading and have an adverse
effect on road holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime.
Advice on care and maintenance
Recommendations on the care and
maintenance of your vehicle are given in the
Maintenance and Warranty Guide.
Practical information

195
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators , refer to the
corresponding sections.
Once the AdBlue
® tank is empty, a system
required by regulations prevents starting
of the engine.
If the SCR system is faulty, the level of
emissions from your vehicle will no longer
meet the Euro 6

standard: your vehicle
becomes polluting.
In the event of a

confirmed fault with the
SCR system, you must go to a
CITROËN
dealer or a

qualified workshop as soon
as possible: after travelling a
distance
of 685

miles (1,100 km), a system will be
triggered automatically to prevent engine
starting.
In either case, a range indicator gives you
the distance you can travel before the
vehicle is immobilised.
Freezing of the AdBlue
®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a
heater for the
AdBlue
® tank, allowing you to continue
driving in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reser ve level has been reached.
In order to ensure that the SCR system
operates correctly:
-

U

se only AdBlue
® fluid that meets the
ISO
22241
standard.
-

N

ever transfer AdBlue
® to another
container: it would lose its purity.
-

N

ever dilute AdBlue
® with water.
You can obtain AdBlue
® from a CITROËN
d
ealer or a

qualified workshop.
You can also visit a

ser vice station equipped
with AdBlue
® pumps specially designed for
passenger vehicles.
Recommendations on
storage
If the fluid has frozen, it can be used once it has
completely thawed out at room temperature.
Never keep bottles or containers of
AdBlue
® in your vehicle.
Precautions for use
AdBlue® is a urea-based solution. This liquid
is
non-flammable, colourless and odourless
(when kept in a
cool place).
In the event of contact with the skin, wash the
affected area with soap and water. In the event
of contact with the eyes, wash (irrigate) the
eyes with large amounts of water or with an eye
wash solution for at least 15
minutes. If you feel
a

persistent burning sensation or irritation, get
medical attention.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (at high temperature,
for example), the risk of release of ammonia
cannot be excluded: do not inhale the vapour.
Ammonia has an irritant effect on mucous
membranes (eyes, nose and throat).
AdBlue
® freezes below about -11°C and
deteriorates above 25°C. It should be stored in
a

cool place and protected from direct sunlight.
Under these conditions, the fluid can be kept
for at least a
year.
7
Practical information

196
Access to the AdBlue® tank
A blue cap under the fuel filler flap indicates
access to the AdBlue® tank.
F

S

witch off the ignition and remove the key.
Or
F

W

ith Keyless Entry and Starting, press the
" START/STOP " button to switch off the
engine.
F

T

urn the AdBlue
® blue filler cap anti-
clockwise.
F

O

btain an AdBlue
® container (check the
use-by date) and pour the contents of the
container into your vehicle's AdBlue
® tank.
Or
F

I

nsert the AdBlue
® pump nozzle and refill
the tank until the nozzle stops automatically. Important:
To avoid over flowing the AdBlue
® tank, it
is recommended:
F

T

o top up between 10

and 13

litres
using AdBlue
® containers.
Or
F

W

hen filling at a ser vice station, to stop
after the third automatic cut-off of the
nozzle.
Important: in the event of a
top-up after
a

breakdown because of a lack of
AdBlue, you must wait around 5
minutes
before switching on the ignition, without
opening the driver's door, unlocking
the vehicle, introducing the key into
the ignition switch, or introducing
the key of the Keyless Entr y and
Star ting system into the passenger
compartment .
Switch on the ignition, then wait for
10


seconds before starting the engine.
Keep AdBlue
® out of the reach of children,
in its original container or bottle.
Procedure
Before starting the top-up procedure, ensure
that the vehicle is parked on a flat and level
sur face.
Do not pour AdBlue
® if the temperature of the
vehicle is less than -11°C. Park your vehicle in
a

warmer area for a

few hours to allow the top-
up to be carried out.
In the event of an AdBlue
® breakdown,
confirmed by the message "Add AdBlue:
Starting impossible", you must top up with
at least 5

litres.
Never pour AdBlue
® into the Diesel fuel
tank.
If any AdBlue
® is splashed, or if there
are any spillages on the bodywork, rinse
immediately with cold water or wipe with
a

damp cloth.
If the fluid has crystallised, clean it off
using a

sponge and hot water.
Practical information

197
Warning triangle
As a safety precaution, before leaving your
v ehicle to set up and install the triangle, switch
on the hazard warning lamps and put on your
high visibility vest.
Storage compartment
There is a compartment in the interior trim of
t he tailgate to store a triangle.
F

O
pen the tailgate.
F

R
elease the cover by turning the screw
a
quarter turn anti-clockwise.
Assembling and placing the
triangle
For versions supplied with a triangle as original
e quipment, refer to the illustration above.
For other versions, refer to the assembly
instructions provided with the triangle.
F

P
ut the triangle in place behind the vehicle,
as required by local legislation.
Running out of fuel (Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel.
If the engine does not start first time, do not
keep trying, but start the procedure again from
the beginning. For more information on Misfuel
prevention (Diesel)
, refer to the
corresponding section.
BlueHDi 130 engines
F Fill the fuel tank with at least 5 litres of
Diesel.
F

S
witch on the ignition (without starting the
engine).
F

W
ait around 1 minute and switch off the
ignition.
F

O
perate the starter to start the engine.
If the engine does not start, repeat the
procedure.
BlueHDi 180 engines
F Fill the fuel tank with at least 5 litres of
Diesel.
F

S
witch on the ignition (without starting the
engine).
F

W
ait around 6 seconds and switch off the
ignition.
F

R
epeat the last two operations 10 times.
F

O
perate the starter to start the engine.
8
In the event of a breakdown

198
HDi engines
F Fill the fuel tank with at least 5 litres of
Diesel.
F

O
pen the bonnet.
F

I
f necessary, unclip the cover to access the
priming pump.
F

L
oosen the degassing bolt.
F

O
perate the priming pump until fuel appears
in the transparent tube.
F

R
etighten the degassing bolt.
F

O
perate the starter until the engine starts (if
the engine does not start at the first attempt,
wait around 15
seconds before trying
again).
F

I
f the engine does not start after a few
attempts, operate the priming pump again
then start the engine.
F

P
ut the cover back in place, clip it and
ensure it is clipped in.
F

C
lose the bonnet.
Tool kit
This is a set of tools provided with the vehicle.
I ts content depends on your vehicle's
equipment:
-
t

emporary puncture repair kit,
-
spar

e wheel.
Access to the tool kit
The main tools are stowed in the boot, under
t h e f l o o r.
For access to them:
F
O
pen the boot.
F

P
lace the adjustable boot floor in the high
position.
Versions with a temporary
p uncture repair kit
F Unclip the two fixings to open its cover.
Versions with a spare wheel
F unclip the storage box by pulling it up,
F
u nclip the two fixings to open its cover.
All of these tools are specific to your
vehicle and may vary depending on
equipment.
Do not use them for any other purposes.
In the event of a breakdown

208
Model C
1.Daytime running lamps/sidelamps (LED).
2. Direction indicators (W Y21W).
3. Dipped beam headlamps (H7-55W).
4. Main beam headlamps (HB3-65W).
5. Front foglamps (P21W).
Opening the bonnet /Access to bulbs
With the engine warm, proceed with
caution – Risk of burns!
Take care with objects or clothing that
could be caught in the blades of the
engine fan – Risk of strangulation!
Direction indicators (halogen
headlamps)
Rapid flashing of a direction indicator
l amp (left or right) indicates that one of
the bulbs on the corresponding side has
failed.
Amber coloured bulbs, such as the
direction indicators, must be replaced
by bulbs with identical colour and
specifications.
Main beam headlamps (halogen
headlamps)
F Turn the bulb holder a quarter turn anti-
clockwise.
F

P
ull the bulb and bulb holder assembly
rearwards.
F

R
eplace the bulb.
To refit, carry out these operations in reverse
o r d e r. F

R
emove the protective cover.
F
D
isconnect the bulb connector.
F
T
urn the bulb holder anti-clockwise.
F
R
emove the bulb and replace it.
To refit, carry out these operations in reverse
order. When refitting, close the protective cover
very carefully to guarantee the sealing of the
lamp.
In the event of a breakdown

215
Fuse No.Rating
(A) Functions
F1 40Air conditioning
ventilation motor.
F16 20Heated windscreen
F18 10
Right-hand main beam headlamp.
F19 10Left-hand main beam headlamp.
F24 40Trailer power supply.
F26 25Front foglamps.
12 V battery
Procedure for starting the engine using another
battery or charging a
discharged battery.
Lead-acid starter batteries
Batteries contain harmful substances
such as sulphuric acid and lead.
They must be disposed of in accordance
with regulations and must not, in any
circumstances, be discarded with
household waste.
Take used remote control batteries and
vehicle batteries to a
special collection
point.
Protect your eyes and face before
handling the battery.
All operations on the battery must be
carried out in a
well ventilated area and
away from naked flames and sources of
sparks, so as to avoid the risk of explosion
or fire.
Wash your hands afterwards.
Access to the battery
The battery is located under the bonnet.
Engine compartment fuses
The fusebox is placed in the engine
compartment near the battery.
Access to the fuses
F Release the two latches A .
F R emove the cover.
F

C
hange the fuse.
F

W
hen you have finished, close the cover
carefully then engage the two latches A , to
ensure correct sealing of the fusebox.
8
In the event of a breakdown

216
(+) Positive terminal.
It has a quick-release clamp.
(-) Negative terminal.
As the battery's negative terminal is not
accessible, a remote earth point is placed near
the battery.
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a backup battery
(external or from another vehicle) and jump
leads or using a
battery booster.
For access to the (+) terminal:
F

u
nlock the bonnet by activating the internal
release lever, then the external safety catch.
F
r
aise the bonnet.
Never start the engine by connecting
a battery charger.
Never use a 24 V or higher battery
b o o s t e r.
Check beforehand that the backup
battery has a nominal voltage of 12 V and
a capacity at least equal to that of the
discharged battery.
The two vehicles must not be in contact
with each other.
Switch off all the electrical consumers
on both vehicles (audio system, wipers,
lighting, etc.).
Make sure that the jump leads are not
close to the moving parts of the engine
(fan, belt, etc.).
Do not disconnect the (+) terminal while
the engine is running. F
C
onnect the red cable to the (+) terminal of
flat battery A (at the metal elbow), then to
the (+) terminal of backup battery B or the
b o o s t e r.
F
C
onnect one end of the green or black
cable to the (-) terminal of backup battery
B or the booster (or to an earth point on the
assisting vehicle).
F
C
onnect the other end of the green or black
cable to earth point C on the broken down
vehicle.
F
L
ift the plastic cover on the (+) terminal, if
your vehicle has one. F

S
tart the engine of the assisting vehicle and
leave it running for a few minutes.
F
O
perate the starter on the broken down
vehicle and let the engine run.
If the engine does not start straight away,
switch off the ignition and wait a few moments
before trying again.
F
W
ait for it to return to idle.
F
D
isconnect the jump leads in reverse
order .
F
R
efit the plastic cover to the (+) terminal, if
your vehicle has one.
F A llow the engine to run for at least
30 minutes, by driving or with the vehicle
stationary, so that the battery reaches an
adequate state of charge.
If your vehicle has an automatic gearbox,
never try to start the engine by pushing
the vehicle.
In the event of a breakdown

217
Charging the battery using
a battery charger
For optimum ser vice life of the battery, it is
essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the battery:
-

u
sing the vehicle mainly for short journeys,
-

i
f the vehicle is to be taken off the road for
several weeks.
Contact a
CITROËN dealer or a qualified
workshop.
To charge the vehicle's battery yourself,
use only a


charger compatible with lead-
acid batteries with a
nominal voltage of
12


V.
Follow the instructions provided by the
manufacturer of the charger.
Never reverse polarities.
It is not necessary to disconnect the
battery. F

S
witch off the ignition.
F
S
witch off all electrical consumers (audio
system, lighting, wipers, etc.). Never try to charge a frozen battery – risk
of explosion!
If the battery has frozen, have it checked
by a CITROËN dealer or by a qualified
workshop who will verify that the internal
components have not been damaged
and that the case has not cracked, which
would mean a
risk of toxic and corrosive
acid leaking.
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
Disconnecting the battery
F Switch off charger B before connecting the cables to the battery, so as to avoid any
dangerous sparks.
F

E
nsure that the charger cables are in good
condition.
F

I
f the vehicle has one, lift the plastic cover
on the (+) terminal.
F

C
onnect the cables of charger B as follows:
-

t
he positive (+) red cable to the (+)
terminal of battery A ,
-

t
he negative (-) black cable to earth point
C on the vehicle.
F

A
t the end of the charging operation, switch
off charger B before disconnecting the
cables from battery A . In order to maintain an adequate state
of charge for starting the engine, it is
recommended that the battery be disconnected
if the vehicle is taken out of ser vice for a
long
period.
Before disconnecting the battery:
F

c
lose all openings (doors, tailgate, windows,
sunroof),
F

s
witch off all electrical consumers (audio
system, wipers, lighting, etc.),
8
In the event of a breakdown