2021 CITROEN C4 AIRCROSS fuel

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

111
Stop & Start (auto Stop & Go) function
Operation
Going into engine STOP mode
The "AS &G" warning lamp comes on in
the instrument panel or the instrument
panel screen and the engine goes into
standby after a few seconds:
-

w

ith a manual gearbox , with the vehicle
stationary and your foot on the brake, when
you put the gear lever into neutral and
release the clutch pedal.
Never refuel with the engine in STOP
mode; you must switch off the ignition
with the key or the START/STOP
button. When the engine is stopped
automatically, the operation of certain
vehicle systems, such as for example,
braking, power steering... are modified.
Ta k e c a r e.
Special cases: STOP mode not
available
STOP mode is not invoked when:
-
t he driver's seat belt is not fastened,
-

t
he driver's door is open,
-

t
he bonnet is open,
-

t
he minimum time period of 30 seconds
since starting the engine has not elapsed,
-

t
he vehicle has not exceeded 3 mph
(5
km/h) since the last engine start,
-

t
he vehicle has restarted less than
10
seconds ago,
-

t
he engine is needed to maintain a
comfortable temperature in the passenger
compartment,
-

d
emisting is active,
-

s
ome special conditions (battery charge,
engine temperature, braking assistance,
ambient temperature...) where the engine is
needed to assure control of a system.
-

t
he "AS &G" warning lamp is
flashing in the instrument panel.
This operation is perfectly normal.
The Stop & Start (Auto Stop & Go) function puts the engine temporarily into standby during stops in the traffic (red lights, traffic jams, or other...).
The

engine restarts automatically as soon as you want to move off. The restart takes place instantly, quickly and silently.
Per fect for urban use, the Stop & Start (Auto Stop & Go) function reduces fuel consumption and exhaust emissions as well as the noise level when
stationary.
If you move the gear lever, the "AS &G"
warning lamp flashes, accompanied by
an audible signal.
The alert stops as soon as the gear
lever is returned to the neutral position.
4
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

209
The various caps and covers allow access for
checking the levels of the various fluids, for
replacing certain components and for priming
the fuel system.
Diesel engines
1. Screenwash and headlamp wash fluid reservoir.
2.
C

oolant reservoir.
3.
B

rake fluid reservoir.
4.
B

attery.
5.
F

usebox.
6.
A

ir filter.
7.
E

ngine oil dipstick.
8.
E

ngine oil filler cap.
9.
P

riming pump*. 1.6
HDi 110
1.8 HDi 150
* According to engine.
8
Checks

210
When the symbol begins to flash
rapidly (approximately twice per
second), there is not much fuel
remaining in your tank (approximately
5 litres).
You must fill the tank to avoid running
out of fuel.
Fuel tank
Capacity of the tank: approximately 60 litres.
Low fuel level
Filling
A label, affixed on the inside of the flap,
reminds you of the type of fuel to be used
according to your engine.
More than 5 litres of fuel must be added in
order to be registered by the fuel gauge.
Location of the cap
When the low fuel level is reached,
this indication appears in the
instrument panel screen. When it first
comes on, you have approximately
10 litres of fuel remaining.
The symbol flashes slowly (approximately
once per second).
1.
O

pening the filer flap.
2.
R

emoving the filler cap.
3.
H

ooking the filler cap.
To fill the tank safely:
F

t
he engine must be switched off,
F

p
ull the control A located at the bottom
right of the driver's seat to release the fuel
filler flap,
F

o
pen the fuel filler flap B,
F

t
urn the filler cap C to the left,
F

r
emove the filler cap C,
F

f
ill the tank, but do not continue after the
3rd cut- off of the nozzle ; this could cause
malfunctions.
When you have filled the tank:
F

r
efit the filler cap, inserting the upper
part first,
F

s
crew in the filler cap to the right,
F

c
lose the flap.
Ensure that the fuel filler flap is closed
c o r r e c t l y. This symbol indicates that the fuel
tank cap is located on the left-hand
side of the vehicle.
Opening the cap may cause an inrush of air.
This vacuum, which is completely normal, is
caused by the sealing of the fuel system.
Checks

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

212
Running out of fuel (Diesel)
On vehicles fitted with the 1.6 litre HDi 110
engine, the fuel system must be manually
primed if you run out of fuel; refer to the
corresponding Diesel engine compartment
view.
1.6 litre HDi engine
F Fill the fuel tank with at least five litres of diesel.
F

O
pen the bonnet.
F

I
f necessary, unclip the styling cover for
access to the priming pump.
F

S
queeze and release the priming pump
repeatedly until resistance is felt (there
may be resistance at the first press).
F

O
perate the starter until the engine starts
(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).
F

I
f the engine does not start after a few
attempts, operate the priming pump again
then start the engine.
F

C
lip the styling cover back in place.
F

C
lose the bonnet.
Checks

219
* The maximum power corresponds to the value type-approved on a test bed, under conditions defined in European legislation (Directive 1999/99/EC).
Engines and gearboxes
.../S: model fitted with the Stop & Start (AS&G) function.
PETROL ENGINES
1.6 litre 1152.0 litre 150
Model codes : BU... NKZ7

NK Z 7/S
NKZ0
NKZ0/S AFYR

AFZ7 AFYV
AFZM AFYT
AFZH AFYW
AFZP
Transmission mode 2WD2WD 4WD2WD 4WD
Cubic capacity (cc) 1 5901 998
Bore x stroke (mm) 75 x 9086 x 86
Max power*: EU standard (kW) 86113
Max power engine speed (rpm) 6 0006 000
Max torque: EU standard (Nm) 15 419 9
Max torque engine speed (rpm) 4 0004 200
Fuel UnleadedUnleaded
Catalytic converter Ye sYe s
GEARBOXES Manual
(5-speed) Manual
(5-speed) CVT
(6-speed)
OIL CAPACITY (in litres)
Engine (with filter replacement) 4.24.3
9
Technical data