2021 CITROEN C3 AIRCROSS heating

45
Ease of use and comfort
3The setting is associated with AUTO mode only.
However, when AUTO mode is deactivated, the
previous selection is retained.
Changing the setting does not reactivate AUTO
mode if this was deactivated.
In cold weather with the engine cold, the
air flow is increased gradually until the
comfort setting has been reached, in order to
limit the delivery of cold air into the passenger
compartment.
On entering the vehicle, if the interior
temperature is much colder or warmer than
the comfort setting requested, there is no
need to alter the value displayed to reach
the required level of comfort more quickly.
The system automatically corrects the
temperature difference as quickly as possible.
Air flow adjustment
► Press one of the buttons 2 (- or +) to increase
or decrease air flow.
The air flow symbol (a fan) is filled in according
to the request.
When the air flow is reduced to a minimum,
ventilation stops.
"OFF " is displayed alongside the fan.
Adjusting the air distribution
► Press the buttons 3 to adjust the air flow
distribution inside the passenger compartment.
Windscreen.
Central and side air vents.
Footwells.
Each press on a button activates or deactivates
the function.
All three buttons can be activated simultaneously. In this case, priority is
given to the air flows from the central and side
air vents, and from those in the passenger
footwells.
Air conditioning on / off
The air conditioning system is designed to
operate effectively in all seasons, with the
windows closed.
It is used to:
– lower the temperature in summer ,– increase the effectiveness of the demisting in winter, above 3°C.
► Press button 4 to turn the air conditioning on/
off.
When the indicator lamp is on, the air
conditioning function is activated.
The air conditioning cannot operate when the air flow adjustment is set to OFF.
Ventilation function with the
ignition on
When the ignition is switched on, you can
use the ventilation system to adjust the air
flow settings and the air distribution in the
passenger compartment for a duration which
depends on the battery charge.
This function does not operate the air
conditioning.
Recirculation of interior air
The intake of exterior air helps avoid and
eliminate misting of the windscreen and side
windows.
Recirculating the interior air isolates the
passenger compartment from exterior odours
and fumes.
When required, this function also allows
faster heating or cooling of the air in the
passenger compartment.
► Press button 6 to recirculate the interior air or
allow the intake of exterior air.
Avoid prolonged use of interior air recirculation (due to the risk of misting
and deteriorating air quality).

48
Ease of use and comfort
Glove box

► To open the glove box, pull the handle
towards you.
It contains the front passenger airbag
deactivation switch.
12 V accessory sockets

► Always use the correct adapter to connect a
12 V accessory (max. power: 120 W).
Observe the maximum power rating to
avoid damaging your accessory.
The connection of an electrical device not approved by CITROËN, such as a
USB charger, may adversely affect the
operation of vehicle electrical systems,
causing faults such as poor radio reception or
interference with displays in the screens.
Wireless smartphone
charger



It allows wireless charging of a portable device
such as a smartphone, using the magnetic
induction principle, in accordance with the Qi 1.1
standard.
The portable device to be charged must be
compatible with the Qi standard, either by design
or by using a compatible holder or shell.
The charging area is identified by the Qi symbol.
The charger works with the engine running and
with the Stop & Start system in STOP mode.
Charging is managed by the smartphone.
With Keyless Entry and Starting, the charger’s
operation may be briefly disrupted when a door
is opened or the ignition is switched off.
Charging
► With the charging area clear , place a device in its centre.

When the portable device is detected, the
charger’s indicator lamp lights up green. It
remains lit for the whole time that the battery is
being charged.
The system is not designed to charge
multiple devices simultaneously.


Do not leave any metal objects (coins,
keys, vehicle remote control, etc.) in the
charging area while a device is being
charged, due to the risk of overheating or
interrupting the charging process.
Operating check
The state of the indicator lamp allows the
operation of the charger to be monitored.

86
Driving
Driving recommendations
► Observe the driving regulations and remain vigilant whatever the traffic conditions.► Monitor your environment and keep your hands on the wheel to be able to react to
anything that may happen any time.
► Drive smoothly, anticipate the need for braking and maintain a longer safety distance,
especially in bad weather.
► Stop the vehicle to carry out operations that require close attention (such as adjustments).► During long trips, take a break every two hours.
Important!
Never leave the engine running in a
closed space without sufficient
ventilation. Internal combustion engines emit
toxic exhaust gases such as carbon
monoxide. Danger of poisoning and death!
In severe wintry conditions (temperature
below -23°C), let the engine run for 4
minutes before moving off, to ensure the
correct operation and durability of the
mechanical components of your vehicle
(engine and gearbox).
Never drive with the parking brake
applied . Risk of overheating and
damage to the braking system!
Do not park the vehicle or leave the
engine running on a flammable
surface (dry grass, dead leaves, etc.). The
exhaust system of your vehicle is very hot,
even several minutes after the engine stops.
Risk of fire!
Never leave a vehicle unattended with
the engine running. If you have to leave
your vehicle with the engine running, apply
the parking brake and put the gearbox into
neutral or position N or P (depending on the
type of gearbox).
Never leave children inside the vehicle
unsupervised.
On flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage to
the engine or gearbox, as well as to the electrical
systems of your vehicle.


If you are obliged to drive on a flooded road:
► check that the depth of water does not exceed 15 cm, taking account of waves that might be generated by other users,► deactivate the Stop & Start function,► drive as slowly as possible without stalling. In all cases, do not exceed 6 mph (10 km/h),► do not stop and do not switch off the engine.On leaving the flooded road, as soon as safety
conditions allow, make several light brake
applications to dry the brake discs and pads.
If in doubt about the state of your vehicle,
contact a CITROËN dealer or a qualified
workshop.
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
Respect the maximum towable weights.
At altitude: reduce the maximum load by
10% per 1,000 metres of altitude; the density
of the air decreases with altitude and the
performance of the engine reduces.
New vehicle: do not pull a trailer before
having driven at least 620 miles (1,000
kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
► Distribute the load in the trailer so that the heaviest items are as close as possible to the
axle and the nose weight (at the point where it
joins your vehicle) approaches the maximum
permitted without exceeding it.
Tyres
► Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
► Check the electrical signalling on the trailer and the headlamp beam height of your vehicle.
If a genuine CITROËN towing device is
used, the rear parking sensors will be
deactivated automatically to avoid the audible
signal.
When driving
Cooling
Towing a trailer uphill causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
► Reduce speed and lower the engine speed to limit heating up.

87
Driving
6Before setting off
Nose weight
► Distribute the load in the trailer so that the heaviest items are as close as possible to the
axle and the nose weight (at the point where it
joins your vehicle) approaches the maximum
permitted without exceeding it.
Tyres
► Check the tyre pressures of the towing vehicle and of the trailer, observing the
recommended pressures.
Lighting
► Check the electrical signalling on the trailer and the headlamp beam height of your vehicle.
If a genuine CITROËN towing device is
used, the rear parking sensors will be
deactivated automatically to avoid the audible
signal.
When driving
Cooling
Towing a trailer uphill causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
► Reduce speed and lower the engine speed to limit heating up.
In all cases, pay attention to the coolant
temperature.
If this warning lamp and the STOP
warning lamp come on, stop the vehicle
and switch off the engine as soon as possible.
Brakes
Braking distances are increased when towing a
trailer. To avoid overheating the brakes, the use
of engine braking is recommended.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.
Anti-theft protection
Electronic immobiliser
The keys include an electronic engine
immobiliser system, whose secret code must be
recognised in order for starting to be possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact a CITROËN dealer.
For safety and theft protection reasons,
do not leave your electronic key in the
vehicle, even when you are close to it.
It is recommended that you keep it with you.
Starting / Switching off the
engine with the key
Key ignition switch

It has 3 positions:– 1. Stop : inserting and removing the key,
steering column locked.
– 2. Ignition : steering column unlocked, ignition
on, Diesel preheating, engine running.
– 3. Starting.
Avoid attaching heavy objects to the key or the remote control. It would weigh
down on its shaft in the ignition switch and
could cause a malfunction.
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
Once the state of charge of the battery drops to
the reserve level, the system switches to energy
economy mode : the power supply is cut off

88
Driving
automatically to preserve the remaining battery
charge.
Starting the engine
With the parking brake applied:► With a manual gearbox, place the gear lever
in neutral then fully depress the clutch pedal.
► With an automatic gearbox, place the gear
selector in mode N or P then fully depress the
brake pedal.
► Insert the key into the ignition switch; the system recognises the code.► Unlock the steering column by simultaneously turning the steering wheel and the key.
In certain cases, you may have to apply
significant force to move the steering
wheel (wheels on full lock, for example).
► With a petrol engine , operate the starter
motor by turning the key to position 3 without
pressing the accelerator pedal, until the engine
starts. Once the engine starts, release the key.
With petrol engines , after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for anything up to 2 minutes while stationary with
the engine running (accelerated idle speed).
► With a Diesel engine, turn the key to position
2, ignition on, to operate the engine preheating
system.
Wait until this warning lamp goes off in the instrument panel, then operate the starter
motor by turning the key to position 3 without
pressing the accelerator pedal, until the engine
starts. Once the engine starts, release the key.
In wintry conditions, the warning lamp
may stay on for a longer period. When
the engine is hot, the warning lamp does not
come on.
If the engine does not start straight away,
switch off the ignition. Wait a few
seconds before operating the starter motor
again. If the engine does not start after a few
attempts, do not keep trying - risk of
damaging the starter motor and the engine.
Contact a CITROËN dealer or a qualified
workshop.
In mild conditions, do not leave the
engine at idle to warm up but move off
straight away and drive at moderate speed.
Switching off the engine
► Immobilise the vehicle.► With the engine at idle, turn the key to position 1.► Remove the key from the ignition switch.► To lock the steering column, turn the steering wheel until it locks.
To facilitate unlocking of the steering
column, it is recommended that the
wheels be returned to the straight ahead
position before switching off the engine.
Never switch off the ignition before the
complete immobilisation of the vehicle.
With the engine off, the braking and steering
assistance systems are also cut off - risk of
loss of control of the vehicle!
Check that the parking brake is correctly
applied, particularly on sloping ground.
When leaving the vehicle, keep the key in
your possession and lock the vehicle.
Energy economy mode
After the engine has stopped (position 1. Stop),
for a maximum combined duration of about thirty
minutes, you can still use functions such as the
audio and telematics system, courtesy lamps,
windscreen wipers, dipped beam headlamps,
etc.
For more information on Energy
economy mode, refer to the
corresponding section.
Key left in
When opening the driver's door, an alert
message is displayed, accompanied by an
audible signal, to remind you that the key is still in the ignition switch at position 1 (Stop).
If the key has been left in the ignition switch
at position 2 (Ignition on) , the ignition will be
switched off automatically after one hour.
To switch the ignition back on, turn the key
to position 1 (Stop), then back to position 2
(Ignition on) .
Starting / Switching off the
engine with Keyless Entry
and Starting
The electronic key must be present in the
passenger compartment.
If it is not detected, a message is displayed.
Move the electronic key so that the engine
can be started or switched off.
If there is still a problem, refer to the "Key
not detected - Back-up starting or Back-up
switch-off" section.

89
Driving
6audible signal, to remind you that the key is
still in the ignition switch at position 1 (Stop).
If the key has been left in the ignition switch
at position 2 (Ignition on) , the ignition will be
switched off automatically after one hour.
To switch the ignition back on, turn the key
to position 1 (Stop), then back to position 2
(Ignition on) .
Starting / Switching off the
engine with Keyless Entry
and Starting
The electronic key must be present in the
passenger compartment.
If it is not detected, a message is displayed.
Move the electronic key so that the engine
can be started or switched off.
If there is still a problem, refer to the "Key
not detected - Back-up starting or Back-up
switch-off" section.
Starting

► With a manual gearbox, place the gear lever
in neutral and fully depress the clutch pedal.
► With an automatic gearbox, select mode P or N and press the brake pedal.

► Press the "START/STOP" button while
maintaining pressure on the pedal until the
engine starts.
For Diesel engines, when the temperature is
below zero and/or the engine is cold, starting will
only occur once the preheating warning lamp is
off.
If this warning lamp comes on after pressing the " START/STOP" button:► Keep the pedal fully depressed and do not press the "START/STOP" button again until the
engine is running.
If one of the starting conditions is not met, a
message is displayed.
In some circumstances, a message indicates
that it is necessary to turn the steering wheel
while pressing the " START/STOP" button to
assist unlocking of the steering column.
With petrol engines , after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for
anything up to 2 minutes while stationary with
the engine running (accelerated idle speed).
Switching off
► Immobilise the vehicle, with the engine at idle.► With a manual gearbox, ideally put the gear
lever into neutral.
► With an automatic gearbox, ideally select mode P or N.► Press the "START/STOP" button..
In some circumstances, it is necessary to turn
the steering wheel to lock the steering column.
If the vehicle is not immobilised, the
engine will not switch off.
With the engine off, the braking and
steering assistance systems are also cut
off - risk of loss of control of the vehicle!
Never leave your vehicle with the
electronic key still inside.

216
Alphabetical index
Fittings, boot 51Fittings, interior 47–48, 50Fittings, rear 50Flap, fuel filler 123–124Flashing indicators 56, 147Floor, boot, adjustable 52Fluid, brake 132Fluid, engine coolant 133Foglamp, rear 55
Foglamps, front 55, 59–60, 147–148Foglamps, rear 55Folding the rear seats 38–40Frequency (radio) 203Fuel 6, 123Fuel consumption 6Fuel tank 123–124Fusebox, dashboard 150, 152Fusebox, engine compartment 150, 152Fuses 150–152
G
Gauge, fuel 123–124Gearbox, automatic 92, 94–96, 134Gearbox, manual 91–92, 95–96, 134Gear lever, manual gearbox 91–92Gear shift indicator ~ Gear efficiency indicator 94Glove box 48G.P.S. 197Grab handles 50
Grip control 68
H
Hazard warning lamps 64headlamp adjustment 59Headlamp adjustment 59Headlamps, automatic dipping 58–59
Headlamps, automatic illumination 57–58Headlamps, dipped beam 55, 147–148Headlamps, halogen 147Headlamps, main beam 55, 147–148Head restraints, front 36Head restraints, rear 38–40Head-up display 99–101Heating 42–44Hill Assist Descent 69Hill Assist Descent Control (HADC) 69–70Hill Descent Control 69–70Hill start assist 94–95Hooks 52Horn 65
I
Ignition 45, 90, 207Ignition on 90Ignition switch 87–88Immobiliser, electronic 87Indicator, AdBlue® range 14
Indicator, coolant temperature 13Indicator, engine oil level 14Indicators, direction 56Inflating tyres 135, 163Inflating tyres and accessories (using the kit) 140, 142Infrared camera 99Instrument panel 7–8, 99Instrument panel, matrix 7
Instrument panels 7Internet browser 199ISOFIX mountings 80
J
Jack 140, 143, 204Jump starting 153
K
Key 23–27Key, electronic 24–26Keyless Entry and Starting 24–26, 87, 89Key not recognised 90Key with remote control 87Kit, hands-free 170–171, 184–185, 205–206Kit, puncture repair 140Kit, temporary puncture repair 139–142