2021 CITROEN C4 AIRCROSS check engine

Direction indicators 141
Hazard warning lamps
1
41
H o r n
1

41
Braking assistance systems

1
42
Trajectory control systems

1
44
Front seat belts

1
46
Airbags
1

50
Child seats

1
55
Deactivating the passenger's front airbag

1
57
ISOFIX child seats

1
64
Child lock

1
70
Safety
Temporary puncture repair kit 1 71
Changing a wheel
1
75
Snow chains

1
81
Changing a bulb

1
82
Changing a fuse

1
88
12 V battery

1
94
Automatic power cut-off to accessories

1
97
Changing a wiper blade

1
97
Recovering the vehicle

1
98
Towing a trailer

2
01
Fitting roof bars

2
03
Accessories
2

04
Practical information
Bonnet 20 7
Petrol engines
2
08
Diesel engines

2
09
Fuel tank

2
10
Running out of fuel (Diesel)

2
12
Checking levels

2
13
Checks
2

16
Checks
Petrol engines 2 19
Petrol weights
2
20
Diesel engines

2
26
Diesel weights

2
27
Dimensions
2

33
Identification markings
2

35
Technical data
bluetooth® telephone with voice recognition 237
Touch screen AUDIO -TELEMATIC system
2
49
TOUCH SCREEN AUDIO - CD system

2
89
AUDIO - CD system

3
11
Audio and telematics
Alphabetical index
Contents

9
Maintenance - Technical data
Engine compartment
fuses 1 88, 191-193
Running out of fuel, Diesel

2

12
Checking levels

2

13 -215
-

o

il
-
b
rake fluid
- c
oolant
-

s

creenwash/headlamp wash fluid
Changing bulbs
1

82-187
-

f

ront
-

r

ear Petrol engines

2

19
Petrol weights

2

20 -225
Diesel engines

2

26
Diesel weights

2

27-232
Dimensions
2

33
Off-road performance
2

34
Identification
markings
2

35
Bonnet
20

7
Petrol engine compartment

2

08
Diesel engine compartment

2

09 Bat ter y
19

4 -19 6
Automatic cut of power supply to accessories

1
97
Checking components

2
16 -218
-
b
attery electrolyte
-
a
ir filter
-
o
il filter
-
p
article filter (Diesel)
-
b
rake pads / discs
.
over view

11
Limit the causes of excess consumption
Spread loads throughout the vehicle; place the heaviest items in the
bottom of the boot, as close as possible to the rear seats.
Limit the loads carried in the vehicle and reduce wind resistance (roof
bars, roof rack, bicycle carrier, trailer...). Use a roof box in preference.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and refit your summer tyres.
Observe the recommendations on
maintenance
Check the tyre pressures regularly, when cold, referring to the label in
the door aperture, driver's side.
Carry out this check in particular:
-
b
efore a long journey,
-

a
t each change of season,
-

a
fter a long period out of use.
Don't forget the spare wheel and the tyres on any trailer or caravan.
Have your vehicle serviced regularly (engine oil, oil filter, air filter...) and
observe the schedule of operations recommended by the manufacturer.
When refuelling, do not continue after the third cut-off of the nozzle to
avoid any over flow.
At the wheel of your new vehicle, it is only after the first 1 800 miles
(3
000 kilometres) that you will see the fuel consumption settle down to
a consistent average.
.
Eco-driving

14
Warning lamps
When the engine is running or the vehicle is being driven, the
illumination of one of the following warning lamps indicates a
malfunction which requires action on the part of the driver.
The warning comes on in the instrument panel or appears in the
instrument panel screen.Warning /indicator lampis on Cause Action / Observations
Parking brake
/
Brake fluid
level
/ Electronic
brake force
distribution fixed.
It comes on for a few seconds, then
goes off when the ignition is switched
to "ON".
The parking brake is on or not fully
released. It is accompanied by a message. Release the parking brake
to make the warning lamp go off.
The brake fluid level is too low. It is accompanied by a message. Top up with brake fluid and contact a CITROËN dealer or a qualified workshop.
The electronic brake force distribution
(EBFD) is faulty. You must stop as soon as it is safe to do so.
Have it checked by a CITROËN dealer or a qualified
workshop.
Engine
autodiagnosis
system flashing.
The engine management system has
a fault. Risk of destruction of the catalytic converter.
Have it checked by a CITROËN dealer or a qualified
workshop.
fixed. The emission control system has a
fault.
The warning lamp should go off when the engine is started.If it does not go off, contact a CITROËN dealer or qualified
workshop without delay.
Battery charge *fixed. The battery charging circuit has a
fault (dirty or loose terminals, slack or
cut alternator belt, ...). The warning lamp should go off when the engine is started.
If it does not go off, contact a CITROËN dealer or a qualified
workshop.
The illumination of a warning lamp may be accompanied by the display
of an additional message, to assist you in identifying the problem.
If you encounter any problems, you should contact a CITROËN dealer
or a qualified workshop.
* According to destination country.
Monitoring

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

19
Instrument panel screen
Each time the engine is started: warning lamps and/or messages come on, applying a checking self test. They go off after a few seconds.
When you want to see the trip computer information, you can choose to ignore the alerts, by pressing the INFO button on the dashboard.
The messages displayed may vary according to the type of display screen (type 1 or type 2) in the instrument panel.
Cer tain messages are only displayed in the type 2 screen. When this symbol appears: make
a
short press . When this symbol appears: make
a long press
.
Ignition off.
Ignition on
(with a manual gearbox). Ignition on
(with a CVT gearbox).
Warnings and alerts
When an alert occurs, the displayed information then disappears. the warning lamp and its associated message appear, accompanied if appropriate by
an audible signal.
When there are several alerts, they are displayed in turn and this symbol appears. It remains displayed while there are still alerts.
You will then be able to display the alerts again by pressing the INFO button several times to cycle through the trip computer information and return to
the alerts.
1
Monitoring

23
Screen 1 Screen 2Cause Solution - ActionObservations
Warning messages (ignition at "ON")
Fault with the electric power
steering.Stop the vehicle, wait few moments
then start the engine again.If the message remains after
restarting, contact a CITROËN
dealer or a qualified workshop.
The battery for the "
ke

yless Entry
and Starting" system is flat. Replace the battery (see "Changing
the batteries").
The electronic key that you have on
your person is not recognised. Check that you have the correct
electronic key.If the message persists, contact a
CITROËN dealer.
The electronic key is still in the
vehicle and you have tried to lock
the doors or boot from the outside. Ensure that you have the electronic
key on your person before locking
the vehicle.
One of the doors or the boot is not
properly closed when locking the
vehicle from the outside. Close the door or the boot, then
lock the vehicle.
Fault with the "Keyless Entry and
Starting" system. Contact a CITROËN dealer.
1
Monitoring

27
Screen 1 Screen 2Cause Solution - ActionObservations
You have moved off with the parking
brake not fully released.Release the parking brake.
The oil pressure is too low or there
is a fault with the engine lubrication
system. Stop the vehicle and contact
a
CITROËN dealer or a qualified
workshop.
Battery charge fault. Stop the vehicle and contact
a
CITROËN dealer or a qualified
workshop.
Airbag or pretensioner fault. Contact a CITROËN dealer or a
qualified workshop to have the
systems checked.
Fault with automatic headlamp
adjustment system. Contact a CITROËN dealer or
a
qualified workshop.Only on vehicles fitted with xenon
headlamps.
Fault with the stability control
system (ASC). Contact a CITROËN dealer or
a
qualified workshop.
Fault with the four wheel drive
transmission system. Contact a CITROËN dealer or
a
qualified workshop.
1
Monitoring