check engine light CITROEN C4 AIRCROSS 2021 Handbook (in English)

17
Warning/indicator lampis on Cause Action / Observations
Cruise control fixed This comes on when the cruise
control has been activated. Press the "ON/OFF" button to activate/deactivate the
cruise control.
Active stability
control and
traction control
(ASC/TCL) flashing.
Operation of the ASC/ TCL systems. The systems optimise traction and improve the
directional stability of the vehicle.
Adapt your driving and moderate your speed.
fixed. Fault in the ASC/ TCL systems. Have it checked by a CITROËN dealer or a qualified
workshop.
Stop & Star t
(Auto Stop & Go)
function fixed.
When the vehicle stops (red lights,
traffic jams, ...) the Stop & Start
(AS&G) function has put the engine
into STOP mode. The warning lamp goes off and the engine restarts
automatically in START mode, as soon as you want to
move off.
flashes for a few
seconds, then goes
of f. STOP mode is temporarily
unavailable.
or
START mode is invoked
automatically. See "Stop & Start (
aS

&G) function" for special cases
with STOP mode and START mode.
Diesel engine
pre-heating
fixed.
The engine is cold and:
-

t
he ignition switch is at the
ON


position (ignition on), or
-

t
he START/STOP starting button
has been pressed (ignition on). With key starting, wait until the warning lamp has gone
off before starting.
With the Keyless Entry and Starting system, the engine
will only start after the warning lamp has gone off.
The duration for which the warning lamp is on is
determined by the climatic conditions (up to 30 seconds
in severe weather).
If the engine does not start, switch the ignition off and
then on again and wait again until the warning lamp
goes off, then start the engine.
1
Monitoring

202
Driving advice
Distribution of loads
F Distribute the load in the trailer so that the heaviest items are as close as possible to
the axle and the nose weight approaches the
maximum permitted without exceeding it.
Air density decreases with altitude, thus
reducing engine per formance. Above
1
000 metres, the maximum towing load must
be reduced by 10
% of the GTW and so on for
every 1
000 metres of altitude.
Refer to the "Technical Data" section for details
of the weights and towing loads which apply to
your vehicle.
Side wind
F Take into account the increased sensitivity to side wind.
Cooling
Towing a trailer on a slope increases the
temperature of the coolant.
As the fan is electrically controlled, its cooling
capacity is not dependent on the engine speed.
F

T
o lower the engine speed, reduce your
speed.
The maximum towing load on a long slope
depends on the gradient and the outside
temperature.
In all cases, pay attention to the coolant
temperature.
F

I
f this message is displayed, stop your
vehicle as soon as it is safe to do so.
Braking
Towing a trailer increases the braking distance.
Ty r e s
F Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
F Check the lighting and signalling on the trailer.
If the message flashes slowly, wait for the
engine to cool before topping up the level, if
necessary.
If the message flashes rapidly, contact a
CITROËN dealer or a qualified workshop
without delay.
Practical information

211
Quality of the fuel used for
petrol engines
The petrol engines are per fectly compatible
with E10 type petrol biofuels (containing 10 %
ethanol), conforming to European standards
EN 228 and EN 15376.
E85 type fuels (containing up to 85 % ethanol)
are reserved exclusively for vehicles marketed
for the use of this type of fuel (BioFlex
vehicles). The quality of the ethanol must
comply with European standard EN 15293.
For Brazil only, special vehicles are marketed
to run on fuels containing up to 100 % ethanol
(E100 type).
Quality of the fuel used for
Diesel engines
The Diesel engines are per fectly compatible
with biofuels which conform to current and
future European standards (Diesel fuel
which complies with standard EN 590 mixed
with a biofuel which complies with standard
EN 14214) available at the pumps (containing
up to 7 % Fatty Acid Methyl Ester).
The B30 biofuel can be used in certain Diesel
engines; however, this use is subject to strict
application of the special servicing conditions.
Contact a CITROËN dealer or a qualified
workshop.
The use of any other type of (bio)fuel
(vegetable or animal oils, pure or diluted,
domestic fuel...) is strictly prohibited (risk of
damage to the engine and fuel system).
1.6 litre petrol engines, even though they have
been designed to operate on 95 RON petrol,
can accept 90 RON petrol without engine
adjustments, but with a slight deterioration in
performance.
2.0 litre petrol engines can accept 90 RON or
higher petrol.
8
Checks

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

1
17
Monitoring
C4-Aircross-add_en_Chap01_controle-de-marche_ed01-2015
Warning/indicator lampis onCauseAction / Observations
Cruise control fixed This comes on when the cruise control has been activated. Press the "ON/OFF" button to activate/deactivate the cruise control.
Active stability control and traction control (ASC/TCL)
flashing. Operation of the ASC/ TCL systems. The systems optimise traction and improve the directional stability of the vehicle. Adapt your driving and moderate your speed.
fixed. Fault in the ASC/ TCL systems. Have it checked by a CITROËN dealer or a qualified workshop.
Stop & Star t (Auto Stop & Go) system
fixed. When the vehicle stops (red lights, traffic jams, ...) the Stop & Start (AS&G) function has put the engine into STOP mode.
The warning lamp goes off and the engine restarts automatically in START mode, as soon as you want to move off.
flashes for a few seconds, then goes of f.
STOP mode is temporarily unavailable. See "Stop & Start (AS&G) system" for special cases with STOP mode and START mode.
Diesel engine pre-heating fixed. The engine is cold and: - the ignition switch is at the ON position (ignition on), or - the START/STOP starting button has been pressed (ignition on).
With key starting, wait until the warning lamp has gone off before starting. With the Keyless Entry and Starting system, the engine will only start after the warning lamp has gone off. The duration for which the warning lamp is on is determined by the climatic conditions (up to 30 seconds in severe weather). If the engine does not start, switch the ignition off and then on again and wait again until the warning lamp goes off, then start the engine.

1
17
Monitoring
C4-Aircross-add_en_Chap01_controle-de-marche_ed01-2015
Warning/indicator lampis onCauseAction / Observations
Cruise control fixed This comes on when the cruise control has been activated. Press the "ON/OFF" button to activate/deactivate the cruise control.
Active stability control and traction control (ASC/TCL)
flashing. Operation of the ASC/ TCL systems. The systems optimise traction and improve the directional stability of the vehicle. Adapt your driving and moderate your speed.
fixed. Fault in the ASC/ TCL systems. Have it checked by a CITROËN dealer or a qualified workshop.
Stop & Star t (Auto Stop & Go) system
fixed. When the vehicle stops (red lights, traffic jams, ...) the Stop & Start (AS&G) function has put the engine into STOP mode.
The warning lamp goes off and the engine restarts automatically in START mode, as soon as you want to move off.
flashes for a few seconds, then goes of f.
STOP mode is temporarily unavailable. See "Stop & Start (AS&G) system" for special cases with STOP mode and START mode.
Diesel engine pre-heating fixed. The engine is cold and: - the ignition switch is at the ON position (ignition on), or - the START/STOP starting button has been pressed (ignition on).
With key starting, wait until the warning lamp has gone off before starting. With the Keyless Entry and Starting system, the engine will only start after the warning lamp has gone off. The duration for which the warning lamp is on is determined by the climatic conditions (up to 30 seconds in severe weather). If the engine does not start, switch the ignition off and then on again and wait again until the warning lamp goes off, then start the engine.