2021 CITROEN C4 AIRCROSS bulb

186
1. Third brake lamp (LEDs).
2. Number plate lamps (W5W-5W).
3.
R

ear foglamp ( W21W-21W ) .
4.
R

eversing lamp ( W16W-16W ).
5.
D

irection indicators (WY21W-21W).
6.
S

idelamps / brake lamps (W21-5W).
Rear lamps
Amber coloured bulbs, such as the
direction indicators, must be replaced
with bulbs of identical specification and
c o l o u r. These bulbs are changed from outside the
boot.
F

O
pen the boot.
F
R
emove the two fixing screws.
F
U
nclip the lamp unit carefully extract it
pulling it towards the rear.
F T urn the bulb holder a quarter of a turn to
the left and pull it out.
F

P
ull the bulb out and change it.
To reassemble, carry out these operations in
reverse order.
Take care to align the pins on the lamp unit with
the locations on the bodywork.
Changing sidelamp / brake
l amp (6), direction indicator (5),
and foglamp (3) bulbs
F Open the boot.
F
I nsert a screwdriver into the aperture of the
cover and lever it open.
F

T
urn the bulb holder a quarter of a turn to
the left.
F

P
ull the bulb out and change it.
To reassemble, carry out these operations in
reverse order.
You can also contact a CITROËN dealer or a
qualified workshop for the replacement of these
bulbs.
Changing reversing lamp bulbs (4)
Practical information

187
Changing number plate lamp
bulbs (2)
F Push the lens to the left and then down.
F T urn the bulb holder a quarter turn to the
left and pull it out.
F

R
emove the bulb and change it.
To refit, carry out these operations in reverse
order and press on the lens to clip it in place.
Third brake lamp (light emitting
diodes - LEDs) (1)
Contact a CITROËN dealer or qualified
workshop for the replacement of this type of
lamp.
7
Practical information

205
The fitting of electrical equipment
or accessories which are not
recommended by CITROËN may result
in a failure of your vehicle's electronic
system and excessive electrical
consumption.
Contact a CITROËN dealer
for information on the range of
recommended equipment and
accessories.
Installation of radio
communication transmitters
Before installing any after-market radio
communication transmitter, you can
contact a CITROËN dealer for the
specification of transmitters which can
be fitted (frequency, maximum power,
aerial position, specific installation
requirements), in line with the Vehicle
Electromagnetic Compatibility
Directive (2004/104/EC). Depending on the legislation in force in
the country, certain safety equipment
may be compulsory: high visibility
safety vests, warning triangles,
breathalyzers, spare bulbs, spare fuses,
fire extinguisher, first aid kit, mud flaps
at the rear of the vehicle.
"Multimedia":
semi-integral satellite navigation systems,
portable satellite navigation systems, audio
systems, speakers, rear shelf with speakers,
hands-free kit, DVD player, mapping update
DVD, driving assistant, 230V socket, head-up
display system, iPhone charger, telephone
carrier, rear multimedia carrier...
7
Practical information

335
ABS and EBFD systems ...............................14 2ac
cessories .............................. ....................204
Accessory socket, 12V

...................... 9
0, 92, 93
a

ccess to bulbs
............................................. 18

3
ac

tive stability control (
aS
C)
........................14

4
Adjusting headlamps
.................................... 13

3
Adjusting head restraints

................................73
A

djusting seat belt height
.............................14

6
Adjusting the steering wheel

..........................79
A

irbag, knee
.......................................... 15

2, 15 4
Airbags
...............

........................................... 150
Airbags, curtain
..................................... 15

3, 15 4
Airbags, front......................................... 150, 15 4
Airbags, lateral
...................................... 15

2, 15 4
Air conditioning
...............................

.......... 10, 81
Air conditioning, automatic
................................................ 8

1, 84
Air conditioning, manual
...............

..................................... 81, 82
ai

r filter
...............
........................................... 216
ai

r flow
..............................
..............................80
Air intake

...............
....................................83, 86
ai

r vents
..............................
............................80
Alarm
............................................................... 65
A

nti-lock braking
system (ABS)

.............................................. 14

2
Anti-theft
..............................

................... 61, 102
apple® player ............... 278, 279, 280, 304, 306
Armrest, front ...................................... 7 4, 90, 93
Armrest, rear

................................................... 76aSC ........

....................................................... 14 4
ash

tray, portable
.......................................9
0, 92
Audible warning
............................................ 1

41
Audio-CD
..............................

....... 276, 303, 323
Audio file formats

.......................................... 2

76
Audio streaming (
b
lu

etooth)
..............................
............330, 331
Audio systems

............................... 2
49, 289, 311Audio-telematics
...............................

............
249
Automatic illumination of headlamps
...................................... 1
28, 130
Automatic operation
of hazard warning lamps
............................
1
41
Automatic rain sensitive windscreen wipers
...................................... 13
6
Automatic switching off of lighting
................
13
0
Auxiliary
sockets
...........9
4, 278 -281, 304-308, 328 -329
AC
Capacity, fuel tank ..............................
..........210
CD changer ............................... ....................325
CD MP3

................
........................ 276, 303, 325
Central locking

.......................................... 5

2-59
Changing a bulb
..................................... 18

2-187
Changing a fuse
..................................... 1

8 8 -19 3
Changing a wheel

...............................
...175 -178
Changing a wiper blade
...............

............................................ 197
Changing the remote control battery ............................................... 60
Changing the time
.............................. 4

4, 46, 49
Checking levels

...................................... 21

3 -215
Checking the engine oil level
...............

......................................... 213
Checks
...............

.................................... 2 07-218
Children
...............................

... 149, 151, 155 -170
Child lock

...............................
........................170
Child seats

................... 1
55, 156, 160 -162, 169
Child seats, ISOFIX

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

6
Cigarette lighter............................................... 92
Closing the boot

...............................
...............63
Closing the doors

...............................
.............62
Colour screen
....................... 2

50, 253, 290, 293
Connectors, audio
.............. 9

4, 278 -281, 304-305, 328 -329
Controls for air conditioning
...............................

........82, 84
Coolant
...............................

.............................35
Coolant level
..............................

...................214
Courtesy lamp, front

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

8
Courtesy lamp, rear

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

9
Cruise control
................................................ 12

0
Cup holder

...............................
........................90
CVT gearbox

......................................... 1
05, 217
bat

tery
...............................

.................... 194, 216
Battery, charging
...............................

............ 19 6
Battery, remote control

.............................6

0, 61
bl

uetooth (telephone)
....................2

37, 288, 308
bl

uetooth telephone
with voice recognition

.......................... 2

37-24 8
bo

nnet
...............

............................................ 207
bo

nnet stay
................................................... 2

07
b

oot
........

......................................................... 63
Boot lamp

...................................................... 14

0
Bottle holder

...............................

..................... 90
Brake discs

.................................................... 2

18
Brake lamps

...............................

................... 18 6
Brake pads
...............................

..................... 218
Braking assistance system

................

......................................... 142
bulb

s
(changing, type)
................................... 18

2-187
B
.
alphabetical index

337
Jack ...............................................................175
Keeping children safe
............ 1
49, 151, 155 -170
key .......

..................................................... 52- 61
ke

y, electronic
........................................... 5

6 - 61
Key in ignition warning

....................................98
K

eyless Entry and Starting
................. 5
6 - 61, 99
Key with remote control

.................... 5
2-55, 102
Labels, identification
..................................... 23

5
Lamps, front

.................................................. 18

2
Lamps, rear
...............................

....................18 6
Lamps, warning and indicator

...................1

3 -18
LED daytime running lamps

.........................18

4
Level, brake fluid

........................................... 2

14
Level, headlamp wash

..................................2

15
Levels and checks

................ 2
08, 209, 213 -218
Lighting bulbs (replacement)

.................18

2-187
Lighting control stalk

..................................... 12

7
J
K
L
Lighting dimmer ..............................................51
Lighting, guide-me home ..............................13
1
Lighting, interior
............................................ 14

0
Lighting on reminder

..................................... 12

9
Loading
..............................

.............................10
Long objects, transporting

..............................76
L

ow fuel level
..............................
..................210
Luggage retaining strap

..................................96
M

ain beam
..............................
..............182, 18 4
Maintenance
..............................

.....................10
Map (colour screen)

...................................... 26

6
Map reading lamps

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

8
Markings,
identification
............................................... 23

5
Mat
.......

........................................................... 91
Menu
.................................................... 2

53, 294
Mirror, rear view

.............................................. 79
M

irrors, door.................................................... 77
Mountings for ISOFIX seats
...............

............................164, 165, 168
MP3 CD

................
........................ 276, 303, 325
M
N
oil filter .......................................................... 216oi
l level .......................................................... 213
Opening the bonnet

...................................... 2

07
Opening the boot

..............................
..52, 56, 63
Opening the doors

..............................5
2, 56, 62
Opening the fuel filler flap

.............................2

10
Operation indicator lamps

.........................1

3 -18
O
Navigation .............................................254-267
Navigation data ............................... ..............265
Number plate lamps

.............................. 1
86, 187
Pair telephone
...................................... 2

88, 308
Panoramic glass sunroof

................................70
P

arcel shelf, rear
............................................. 97
P

arking brake
........................................ 1
02, 218
Parking sensors, front

...................................12

5
Parking sensors, rear............................ 123, 124
Particle filter
.......................................... 21

5, 217
P
.
alphabetical index

338
Reversing lamps ...........................................18 6
Roof bars ....................................................... 20
3
Roof blind

...............................
.........................70
Routine checks

..................................... 21

6, 218
Running out of fuel (Diesel)

..........................2

12
Screen (audio equipment)

................. 4
4, 46, 48
Screen, instrument panel

..........................1

9 - 31
Screen menu

...............................
......... 253, 294
Screenwash, front
......................................... 13

5
Screenwash reservoir
................................... 2

15
SD card

..............................
.......... 265, 279, 280
Seat adjustment

...............................
......... 71, 72
Seat back storage pockets

.............................95
Se

at belts
............................................... 14

6 -149
Seat belts warning lamp

...............................14

6
Seats, electric
................................................. 72
S

eats, rear
....................................................... 75
S

erial number, vehicle
..................................23

5
Service indicator
............................................. 33
S

ervicing
...............................
..........................10
Setting the clock

................................ 4
4, 46, 48
Sidelamps
.....................................1

82, 184, 186
Side repeater
..............................

..................185
Ski flap

..............................
..............................76
Snow chains
.................................................. 18

1
Spare wheel
...............................

........... 114, 176
Speedometer
..............................

....................12
Spotlamps, side
............................................ 18

5
Starting the vehicle

...................................9
8, 99Steering mounted controls,
audio ............... ............................ 251, 291, 314
Stopping the vehicle

.................................9
8, 99
Stop & Start system (
au

to Stop Go)
............................................111
St

orage
................
................................ 76, 91, 96
Stowing rings
..............................

..............96, 97
Sun visor
......................................................... 91
S

ystem, audio- CD..................................311-333
System, audio-telematics
..................... 24

9 -288
Table of weights

.....................2

20-225, 227-232
Tables of engines

...............................
... 219, 226
TCL
........

........................................................14 4
Technical data
....................................... 2

19 -232
Telephone
........................................... 3

08, 309
Telephone, with voice recognition

.........2

37-24 8
Temperature adjustment
...........................8

2, 84
Temperature, coolant
...................................... 35
T

emporary puncture repair kit
......................17

1
Third brake lamp

................................... 1
86, 187
Three flashes function (direction indicators)
................................... 1

41
TMC (Traffic info)

..........................................26

8
To o l s
................

..............................................175
Total distance recorder

...................................32
T

ouch screen audio- CD system
...................28

9
Touch screen audio-telematic system

..........24

9
To w b a r
................

...........................................201
Towed loads

...........................2

20-225, 227-232
T
S
Radio ............................................ 275, 300, 301
Range ................ ........................................32, 35
RCA sockets

.......................... 9
4, 278, 304, 328
R
dS ................

............................................... 302
Rear foglamp ......................................... 129, 186
Rear screen (demisting)
.................................. 89
R

echarging the battery
.................................19

4
Recirculation / exterior air intake

....................84
R

egeneration of the particle
emissions filter
............................................ 2

17
Remote control

.......................................... 5

2- 61
Removing a wheel

..............................
..........17 7
Removing the mat

...............................
............91
Repair kit, puncture

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

1
Replacing bulbs
..............................

.......182-187
Replacing fuses
..............................

.......18 8 -19 3
Replacing the air filter

...................................2

16
Replacing the oil filter

................................... 2

16
Replacing the passenger
compartment filter

...................................... 2

16
Replacing wiper blades................................. 197
Rev counter
..................................................... 12
R

eversing camera
...............................
..........126
R
Passenger compartment filter ...................... 2 16
Player, CD MP3 ............................ 2 76, 303, 325
Port, US
b


............................... 9
4, 278, 304, 328
Priming the fuel system

................................2

12
Protecting children

................. 1
49, 151, 155 -170
Puncture
................

................................ 171, 175
alphabetical index