2021 CITROEN C4 AIRCROSS fuel pressure

4
Exterior
Lighting controls 127-131
Headlamp beam adjustment 1 33
Welcome lighting

1
32
Changing bulbs
1

82-185
-

f
ront lamps
-
fo

glamps
-

d
irection indicator repeaters
Wiper controls

1
34-137
Changing a wiper blade
1
97
Door mirrors
7
7-78
Doors
6
2, 64
-

o
pening / closing
-

c
entral locking
Child lock

1
70
Electric windows

6
8 - 69
Alarm
6

5-67
Panoramic sunroof

7

0
Roof bars

2

03
Accessories
20

4-205
Braking assistance

1

42-143
Trajectory control

1

44-145
Tyre pressures

1

75, 235
Under-inflation detection
1

14-117
Boot
6

3
-
o
pening / closing
- em
ergency release
Temporary puncture
repair kit

1

71-174
Changing a wheel

1

75 -180
-

t

ools
-

r

emoving / refitting
Snow chains

1

81
Changing bulbs
1

86-187
-

r

ear lamps
-

3

rd brake lamp
-

n

umber plate lamps
-
fo

glamp
Parking sensors

1

23 -125
Reversing camera

1

26
Towbar
20

1-202
To w i n g
1

9 8 - 2 0 0
Fuel tank

2

10
Remote control key /
electronic

key

5

2- 61
-

o

pening / closing
-

a

nti-theft protection
-
b

attery
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

35
When the engine is
running, this indicates the
temperature of the coolant.
Range
When the engine is
running, this indicates
the distance which can
still be travelled with the
fuel remaining in the tank
based on the average
fuel consumption over the
last few miles/kilometres
travelled. This value may vary following a change
in the style of driving or the relief,
resulting in a large variation in the
current fuel consumption.
If you only add a few litres, the value
displayed will be incorrect. Therefore,
you must fill the tank whenever
possible.
Coolant temperature
gauge
If the bar is close to the critical
position located
on the right, the temperature is too high.
The symbol flashes when your engine is
overheating.
You must stop your vehicle as soon as it is
safe to do so.
Wait a few minutes before switching off the
engine. When the range is less than 30 miles (50 km)
,
dashes are displayed.
Refuel as soon as possible. The display of the
range is updated.
Wait for the engine to cool before
topping up the level. The cooling system
is pressurised.
To avoid any risk of scalding, unscrew
the cap by two turns to allow the
pressure to drop.
When the pressure has dropped,
remove the cap and top up the level,
if
necessary.
Contact a CITROËN dealer or a
qualified workshop. When you disconnect the battery,
the previous fuel consumption data
is lost and the value displayed will be
different from that displayed before the
battery was disconnected. The distance
displayed must be considered an
approximate indication.
1
Monitoring

42
In the menu screen:
F p ress the INFO button to
select
"

REINITIALISE" (located in menu 2/3
or 3/3 depending on the instrument panel) :
Reinitialising the under-inflation
detection system (REINITIALISE)
You must reinitialise the under-inflation
detection system after adjusting one or more
tyre pressures or replacing one or more
wheels.
F

p
ress and hold the INFO button for at least
3 seconds .
There is an audible signal and the under-
inflation warning lamp flashes slowly until
reinitialisation is complete.
In the menu screen:
F

p

ress the INFO button to select the current
fuel consumption activation / deactivation
symbol (located in menu 2/3) :Activation / deactivation of the
current fuel consumption*
You can activate or deactivate the display
of the current fuel consumption, with the
type
2 instrument panel only.
F

p
ress and hold the INFO button for a few
seconds to scroll through the choices in
succession (ON, OFF).
* Depending on equipment.
In the menu screen:
F p ress the INFO button to select sound 1 or 2
(located in menu 2/3) :
Selection of the sound
for the direction indicators
You can select the sound for the direction
indicators, with the type 2 instrument panel only.
Monitoring

104
Gear shift indicator*System which reduces fuel consumption by advising the driver to change gear on vehicles fitted with a manual gearbox.
Operation
* Depending on engine.-
f
or a change up,
In the case of driving which makes
particular demands on the per formance
of the engine (firm pressure on the
accelerator pedal, for example, when
overtaking...), the system will not
recommend a gear change.
The system never suggests engaging
reverse gear.
The system intervenes only when driving
economically.
Depending on the driving situation and your
vehicle's equipment, the system may advise
you to skip one or more gears. You can
follow this instruction without engaging the
intermediate gears.
The gear recommendations should not
be considered compulsory. In fact, the
configuration of the road, the amount of traffic
and safety remain determining factors when
choosing the best gear. Therefore, the driver
remains responsible for deciding whether or not
to follow the advice given by the system.
This function cannot be deactivated. A symbol appears in the instrument panel
when the system suggests changing to a more
suitable gear:
or
-
f
or a change down.
Driving

114
The tyre under-inflation detection
system is an aid to driving which does
not replace the need for vigilance on
the part of the driver.
Under-inflation detection
System which continuously and automatically checks the pressures of the four tyres after switching on the ignition.
A pressure sensor is located in the valve of each tyre (except the spare wheel).
The system triggers an alert if a drop in pressure is detected in one or more tyres, compared to the reference pressure registered in the system.
This reference pressure must be reinitialised every time the tyre pressures are adjusted or a wheel changed.
The system operates on condition that sensor identifiers have first been memorised in the system by a CITROËN dealer or a qualified workshop.
You can memorise two sets of tyres (for example: wheels with "standard" tyres and wheels with "winter" tyres).
Driving with under-inflated tyres
increases fuel consumption.This system does not avoid the need
to check the tyre pressures regularly
(including the spare wheel) and before
a long journey.
Driving with under-inflated tyres
adversely affects road holding,
extends braking distances and causes
premature tyre wear, particularly under
arduous conditions (vehicle loaded,
high speed, long journey).
The tyre pressures for your vehicle can
be found on the tyre pressure label (see
the "Identification markings" section).
The tyre pressures must be checked
when the tyres cold (vehicle stopped
for 1 hour or after driving for less then
6 miles (10 km) at moderate speed).
Other wise, add 0.3 bar to the values
indicated on the label.
driving

235
Identification markingsVarious visible markings for the identification and tracing of your vehicle.
A.
M
anufacturer's plate.
I

t is riveted to the middle pillar, right hand
side and carries the following information:
-

t
he name of the manufacturer,
-

t
he European whole vehicle type
approval number,
-

t
he vehicle identification number (VIN),
-

t
he maximum authorised vehicle weight
(gross vehicle weight),
-

t
he maximum authorised weight of
vehicle + trailer (gross train weight),
-

t
he maximum front axle weight,
-

t
he maximum rear axle weight. The tyre pressures must be checked
when the tyres are cold, at least once
a month.
If the tyre pressures are too low, this
increases fuel consumption.
B.
T

yre label.
I

t is fixed to the middle pillar, driver's side
and carries the following information:
-

t
he tyre sizes,
-

t
he tyre pressures.C.
V

ehicle identification number (VIN)
under the bonnet.
T

his number is engraved on the body near
the damper support.
D.
V

ehicle identification number (VIN) at
the bottom of the windscreen aper ture.
I

t is marked on a label visible through the
windscreen, left hand side.
9
Technical data

339
Towing another vehicle .................................20 0
TP (Traffic information) ................. 2 74, 301, 320
Traction control (TCL)
................................... 14

4
Traffic information (TMC)

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

8
Trajectory control systems

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

4
Tyre pressures
..............................

........ 114, 235
Ty r e s
........................................................ 1

0, 114
Tyre under-inflation detection

................. 1
5, 114Warning lamp,

low fuel level ............................... ................210
Warning lamps
........................................... 1

3 -18
Weights
...............

...................220-225, 227-232
Welcome lighting.....................................58, 132
Wheelbrace
...............................

....................175
Wheel, changing
...............................

.....175 -18 0
Window controls

.............................................68
W

iper control stalk
................................13

4, 13 6
W
U
V
Under-inflation (detection) ...................... 15, 114
Unlocking .............................. ....................52, 56
US
b ........

.......... 94, 278 -281, 304-305, 328 -329
Vehicle identification
..................................... 23

5
Ventilation
..............................

................... 80 - 87
Voice commands

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

37-24 8
.
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