check engine CITROEN C3 AIRCROSS 2022 Owner's Guide

180
Automatic gearbox
The gearbox does not require any
maintenance (no oil change).
Brake pads
Brake wear depends on the style
of driving, particularly in the case
of vehicles used in town, over short
distances. It may be necessary to
have the condition of the brakes
checked, even between vehicle
services.
Unless there is a leak in the circuit, a drop in
the brake fluid level indicates that the brake
pads are worn.
Brake disc wear
For information on checking brake
disc wear, contact a CITROËN or a
qualified workshop.
Parking brake
If excessive travel or a loss of
effectiveness of this system is
noticed, the parking brake must
be checked, even between two
services.
Checking this system must be done 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.
After washing the vehicle, dampness, or
in wintry conditions, ice can form on the
brake discs and pads: braking efficiency
may be reduced. Make light brake
applications to dry and defrost the brakes.
AdBlue® (BlueHDi
engines)
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the oxides of nitrogen (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue
® is contained in
a special tank holding about
15


litres.
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 emptied completely.
Practical information

182
Recommendations on storage
AdBlue® freezes at 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.
If the fluid has frozen, it can be used once
it has completely thawed out at ambient
temperature.
Never keep AdBlue
® containers in your
vehicle.
Procedure
In cold weather, before per forming the top-up,
ensure that the temperature is above -11°C.
Otherwise the AdBlue
® may be frozen and so
cannot be poured into the tank.
Park your vehicle in a warmer area for a few
hours to allow the top-up to be carried out. F

S
witch off the ignition and remove the key to
switch off the engine.
or
F
W
ith
K
eyless Entry and Starting, press the
" START/STOP " button to stop the engine.
F
W
ith the vehicle unlocked, open the fuel
filler flap.
F
T
urn the blue cap a quarter turn anti-
clockwise.
F
R
elease the blue cap.
Refilling
F Obtain an AdBlue® container. After first
checking the use-by date, read the
instructions on the label carefully before
pouring the contents of the container or
bottle into your vehicle's AdBlue tank. F

I
nsert the AdBlue
® pump nozzle and refill
the tank until the nozzle stops automatically.
Or
Important:
-

T

o avoid over flowing the AdBlue
® tank,
i
t is recommended:
•

T

o do a top-up of between 10 and
13

litres using AdBlue
® containers.
Or
•

I

f filling in a ser vice station, stop
after the first automatic shut-off of
the nozzle.
-
I

f your vehicle's AdBlue
® tank is
completely empty – which is confirmed
by the alert messages and the
impossibility of starting the engine –
you must add at least 5

litres.
Never top up from an AdBlue
® dispenser
reserved for heavy goods vehicles.
F

B

efore topping up, ensure that the vehicle is
parked on a flat and level sur face.
Practical information

202
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.
For access to the (+) terminal:
F

r
elease the bonnet by activating the internal
control, then the external control,
F

l
ift the bonnet, then hold it in place with its
st ay.
(+) Positive terminal.
It has a quick-release clamp.
(-) Negative terminal.
The battery (-) terminal is not accessible, use
the engine mounting.
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a back-up battery
(external or from another vehicle) and jump
leads or a battery booster. Never try to 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 back-up
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 moving parts of the engine (fan,
belts, etc.).
Do not disconnect the (+) terminal while
the engine is running.
F
L
ift the plastic cover on the (+) terminal, if
your vehicle has one.
In the event of a breakdown

204
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 check that the internal
components have not been damaged and
that the container has not cracked, which
would mean a risk of toxic and corrosive
acid leaking. If this label is present, it is essential to
use only a 12 V charger to avoid causing
irreversible damage to the electrical
components related to the Stop & Start
system.
Disconnecting the battery
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.),
F
s
witch off the ignition and wait for four
minutes.
At the battery, it is only necessary to
disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal
F

Ra
ise the lever A fully to release the
clamp


B.
F

R
emove the clamp B by lifting it off. Reconnecting the (+) terminal
F

Ra
ise the lever A fully.
F R efit the open clamp B on the (+)
terminal.
F P ush the clamp B fully down.
F

L
ower the lever A to lock the clamp B.
Do not force the lever as locking will not
be possible if the clamp is not positioned
correctly; start the procedure again.
Following reconnection of the battery
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting
the engine, in order to enable the electronic
systems to initialise.
In the event of a breakdown

38
Settings
QUESTIONRESPONSESOLUTION
When changing the setting of treble and bass,
the equalizer setting is deselected.
When changing the equalizer setting, the treble
and bass settings are reset. The selection of an equalizer setting imposes
the settings for treble and bass and vice-versa.
Modify the treble and bass or equalizer settings
to obtain the desired musical ambience.
When changing the balance setting,
distribution is deselected.
When changing the distribution setting, the
balance setting is deselected. The selection of a distribution setting imposes
the balance settings and vice-versa.
Modify the balance setting or the distribution
setting to obtain the desired sound quality.
There is a difference in sound quality between
the different audio sources. To allow for optimal listening quality, the
audio settings can be tailored to different
sound sources, which can generate audible
differences when changing source.Check that the audio settings are adapted to
the sources listened to. It is recommended that
the audio settings (Bass:, Treble:, Balance)
be adjusted to the middle position, select the
"None" musical ambience and set the loudness
correction to the "Active" position in CD mode
or to the "Inactive" position in radio mode.
When the engine is off, the system stops after
several minutes of use. When the engine is switched off, the system's
operating time depends on the state of charge
of the battery.
In normal off state, the system automatically
goes into energy economy mode to maintain an
adequate charge in the battery.Start then vehicle’s engine to increase the
charge of the battery.
The date and time cannot be set. Setting of the date and time is only available
if the synchronisation with the satellites is
deactivated.Settings menu/Options/Time-Date setting.
Select the "Time" tab and deactivate the "GPS
synchronisation" (UTC).
CITROËN Connect Nav

22
Settings
QUESTIONRESPONSESOLUTION
When changing the setting of treble and bass,
the equalizer setting is deselected.
When changing the equalizer setting, the treble
and bass settings are reset. The selection of an equalizer setting imposes
the settings for treble and bass and vice versa.
Modify the treble and bass or equalizer settings
to obtain the desired musical ambience.
When changing the balance setting,
distribution is deselected.
When changing the distribution setting, the
balance setting is deselected. The selection of a distribution setting imposes
the balance settings and vice versa.
Modify the balance setting or the distribution
setting to obtain the desired sound quality.
There is a difference in sound quality between
the different audio sources. To allow for optimal listening quality, the
audio settings can be tailored to different
sound sources, which can generate audible
differences when changing source.Check that the audio settings are adapted
to the sources listened to. Adjust the audio
functions to the middle position.
When the engine is off, the system stops after
several minutes of use. When the engine is switched off, the system's
operating time depends on the state of charge
of the battery.
In normal off state, the system automatically
goes into energy economy mode to maintain an
adequate charge in the battery.Turn the ignition on to increase the charge of
the battery.
CITROËN Connect Radio

15
QUESTIONRESPONSESOLUTION
With the engine off, the audio system switches
off after a few minutes of use. When the engine is switched off, the audio
system operating time depends on the state of
charge of the battery.
The switch-off is normal: the audio system
switches to economy mode and switches off to
prevent discharging the vehicle's battery.Turn the ignition on to increase the charge of
the battery.
The message "the audio system is overheated"
appears on the display. In order to protect the installation if the
surrounding temperature is too high, the audio
system switches to an automatic thermal
protection mode leading to a reduction in
volume or the CD play stopping.Switch the audio system off for a few minutes
to allow the system to cool.
Radio
QUESTION
RESPONSESOLUTION
There is a difference in sound quality between
the different audio sources (radio, CD, etc.). To allow for optimal listening quality, the audio
settings (Volume, Bass, treble, Ambience,
Loudness) can be tailored to different
sound sources, which can generate audible
differences when changing source (radio, CD,
e t c .) .Check that the audio settings (Volume, Bass,
Treble, Ambience and Loudness) are adapted
to the sources listened to. It is advisable to set
the audio functions (Bass, Treble, Front-Rear
Balance and Left-Right Balance) to the middle
position, select the musical ambience "None"
and set the loudness correction to the "Active"
position in CD mode or to the "Inactive"
position in radio mode.
.
Bluetooth® audio system

213
180° rear vision ......................................15 4 -15 5
AAccessories ............................................ 90, 123
Active Safety Brake.......................... 14, 142-145
AdBlue
® ................................ 18, 28-29, 18 0 -182
Adjusting headlamps ...................................... 85
Adjusting head restraints


................................ 59
Adjusting seats


.......................................... 57- 5 8
Adjusting the air distribution


.....................66-69
Adjusting the air flow
................................. 6

6-69
Adjusting the date


................... 32-33, 40, 31, 18
Adjusting the height and reach of the steering wheel


.................................... 62
Adjusting the seat belt height
......................... 98
A

djusting the temperature

........................66-69
Adjusting the time


.................... 32-33, 40, 31, 17
Advice on driving


................................... 11 8 -11 9
Airbags
...............................

...................102, 10 6
Airbags, curtain


..................................... 103 -104
Airbags, front .................................. 102-104, 107
Airbags, lateral


...................................... 103 -104
Air conditioning


......................................... 67- 6 9
Air conditioning, automatic


.................65, 67- 6 9
Air conditioning, manual
........................... 6

5 - 67
Air intake


................................................... 66-69
Air vents


.................................................... 64-65
Alarm


.......................................................... 51- 5 2
Anti-lock braking system (ABS)
......................93
Anti-slip regulation (ASR)
............................... 93
Apple CarPlay connection


........................16, 12
Armrest, front
............................................ 71, 74
Armrest, rear
...............................

....................75
Assistance, emergency braking


.............93, 14 4
Assistance call
...............................

...........91-92
Audio streaming (Bluetooth)
...................24, 9 , 9
BBattery ................................... 172, 178 , 202 , 204
Battery, charging ................................... 203-204
Battery, remote control


.............................45-46
Blind
..............................

..................................53
Blinds, side


...................................................... 75
Blind spot monitoring system
...........21, 14 9 -15 0
BlueHDi


..................................... 28-29, 18 0, 18 4
Bluetooth (hands-free)

........2

5 -26, 13 -14 , 1 0 -11
Bluetooth (telephone)
......................

25 -27, 13 -15
Bonnet


.................................................... 174 -175
Boot


..................................................... 48-49, 70
Brake discs


.................................................... 18 0
Brake lamps
...............................

...................195
Brakes


..................................................... 12, 18 0
Braking, automatic emergency


........14, 142-145
Brightness


....................................................... 16
Bulbs (changing)


................................... 193, 195
CCable, audio ................................................ 23, 9
Cable, Jack ................................................. 23, 9
Cap, fuel filler

...............................
..........166 -167
Capacity, fuel tank


................................. 166 -167
CD, MP3


............................................ 23 -24, 9, 9
Central locking
.................................... 43

-44, 49
Changing a bulb
............................. 19

3, 195 -197
Changing a fuse
..................................... 1

97-2 01
Changing a wheel
......................... 18

5, 18 8 -19 0
Changing a wiper blade
.......................... 88,

173
Changing the remote control battery


..............46
Charger, wireless
....................................... 7

2-73
Checking the engine oil level


..........................28
Checking the levels


................................ 176 -178
Checking tyre pressures (using the kit)
.............................. 18 4 -185, 187
Checks


........................................... 175, 178 -18 0
Checks, routine


...................................... 178 -18 0
Child lock


....................................................... 117
Children ................................................... 111 -115
Children (safety) ............................................ 117
Child seats
.............. 10

1, 105 -10 6 , 11 0 -111, 11 6
Child seats, conventional


.......................11 0 -111
Child seats, i-Size
......................................... 115
Child seats, ISOFIX
...............................112 -115
CITROËN Connect Nav


....................................1
CITROËN Connect Radio
................................. 1
C

losing the boot
.................................. 42,

48-49
Closing the doors


................................ 42- 44, 48
Coat hanger


.................................................... 74
Collision risk alert


.................................. 14 4 -145
Configuration, vehicle
............................... 3

2-36
Connection, Bluetooth
........ 19,

25 -27, 13 -15 , 11
Connection, MirrorLink


.........................17, 11 -12
Connection, Wi-Fi network


.............................20
Control, back-up boot release
........................49
Control, back-up door
...............................45-46
Control, electric windows


..........................55-56
Control, heated seats


................................59-60
Control stalk, lighting


....................22-23, 80, 82
Control stalk, wipers

................................. 8

6-89
Courtesy lamps
............................... 78, 19 6 -197
Cruise control


...........13 3 -13 4 , 13 6 -137 , 13 9 -142
Cruise control by speed limit recognition
...............................

............13 6 -137
Cup holder
................................................. 71, 75
DDAB (Digital Audio
Broadcasting) – Digital radio ............22, 8, 6 -7
Date (setting)
........................... 32-33, 40, 31, 18
Daytime running lamps


.............80, 82 , 193 -19 4
Daytime running lamps, LED


........................19 4
Deactivating the passenger airbag


................................... 102-103, 10 6 -107
Deactivation of ASR


........................................ 94
Deadlocking


.............................................. 42, 44
.
Alphabetical index

215
KKey ...................................................... 41, 43-46
Key, electronic ........................................... 43-44
Keyless Entry and Starting ......43, 45, 11 9 , 121-12 2Key not recognised ....................................... 12 3
Key with remote control ................................11
9
Kit, hands-free
.................... 2

5 -26, 13 -14 , 1 0 -11
Kit, temporary puncture repair
...... 18

4 -185, 187
LLabels, identification ..................................... 2 11
Lamp, boot .............................................. 70, 197
Lamps, parking


............................................... 82
Lamps, rear


................................................... 195
Lane Departure Warning System (LDWS)
...148
LEDs – Light-emitting diodes
................. 8

2, 193
Level, brake fluid
........................................... 17 7
Level, Diesel additive


.................................... 178
Level, engine coolant


.......................25, 17 7-178
Level, engine oil
............................... 28, 176 -17 7
Level, screenwash fluid

................................17

8
Levels and checks

..............................
...175 -178
Light-emitting diodes – LEDs
......... 8

2, 193 , 197
Lighting, cornering


.......................................... 86
Lighting, directional


......................................... 85
Lighting, guide-me home


................................83
Lighting, interior
...............................

.........78 -79
Lighting, mood


................................................ 79
Lighting, welcome


........................................... 83
Load reduction mode


.................................... 172
Locating your vehicle


...................................... 42
Locking
...............................

.......................42, 45
Locking from the inside
...................................49
Low fuel level

......................................... 16

6 -167
MMap reading lamps .........................................78
M arkings, identification .................................2 11
Mat


............................................................ 71, 74
Memorising a speed

..............................13

3 -13 4
Menu


............................................................... 12
Menu, main
....................................................... 4
M

enus (audio) ........................................ 3-5, 4-5
Messages


........................................................ 28
Messages, quick
............................................. 28
M

irror, rear view .............................................. 64
Mirrors, door .................................... 63, 14 9 -15 0
Misfuel prevention


......................................... 167
Mountings, ISOFIX


....................................... 112
MP3 CD
............................................................. 9
NNet, storage..................................................... 75
Number plate lamps ...................................... 19 6
OOil, engine .............................................. 176 -17 7
Oil change .............................................. 17
6 -17 7
Oil consumption


..................................... 176 -17 7
On-board tools


........................................ 77, 185
Opening the bonnet


...............................174 -175
Opening the boot


..........................42- 43, 48-49
Opening the doors


..............................42- 43, 48
PPads, brake ................................................... 18 0
Paint colour code .......................................... 2 11
Parcel shelf, rear


............................................. 76
Park Assist

...............................
.....15 5 , 157 , 159
Parking brake


........................................ 124, 18 0
Parking sensors, front ...................................151
Parking sensors, rear .................................... 151
Plates, identification ...................................... 2 11
Player, Apple
® ..................................... 24, 10, 10
Player, MP3 CD ............................... ............23, 9
Player, USB

............................................. 23, 9, 7
Port, USB

.................................... 71, 73 , 23 , 9, 7
Pre-heater, Diesel


........................................... 21
Pressures, tyres


.................................... 188, 2 11
Pre-tensioning seat belts


.............................. 101
Priming the fuel system
................................ 18 4
Profiles


...................................................... 30, 16
Protecting children


....102-103 , 105 -107 , 111 -115
Puncture


........................................ 18 4 -185, 187
RRadio ......................................... 21, 24 , 6, 9, 4-5
Radio, digital (Digital Audio Broadcasting – DAB)
............................22, 8, 6
Range, AdBlue


.......................................... 28-29
RDS
................

....................................... 21-22, 7
Rear screen, demisting


...................................70
Recharging the battery


.........................203-204
Recirculation, air


....................................... 66-69
Reduction of electrical load


..........................172
Regeneration of the particle filter
.................179
Reinitialisation of the under- inflation detection system


....................162-163
Reinitialising the remote control
..................... 47
R

eminder, key in ignition
...............................12

1
Reminder, lighting on
...................................... 81
R

emote control

.......................................... 41- 4 5
Removing a wheel
................................ 19 0 -192
Removing the mat


........................................... 74
Replacing bulbs
.................................... 19

3, 195
Replacing fuses


..................................... 197-2 01
Replacing the air filter
................................... 17

9
Replacing the oil filter
................................... 17

9
.
Alphabetical index