engine CITROEN C4 2020 Owner's Guide

49
Ease of use and comfort
3Changing the setting does not reactivate AUTO
mode if it 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 more
quickly reach the required level of comfort.
The system automatically corrects the
temperature difference as quickly as possible.
Manual control
It is possible to manually adjust one or more
of these functions, while the system retains
automatic control of the other functions:
–

air flow
.
–

air distribution.
The indicator lamp in the " AUT

O” button goes
out if a setting is changed.
►

Press knob
3 or button 10 of the touch
screen again to reactivate the automatic Comfort
programme.
Adjusting the air flow
► Turn the knob 3 or press one of the buttons
3 on the touch screen to increase or decrease
the 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 8 on the touch screen
to adjust the air flow distribution inside the
passenger compartment.
Windscreen and side windows
Central and side air vents
Footwells
The lighting of the button indicates that air is
being blown in the specified direction.
It is possible to activate the following buttons
simultaneously:
–

Central and side air vents + footwells
–


Windscreen and side windows + 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 demisting in
winter

, above 3°C.
►

Press knob
1 or button 9 on the touch screen
to activate/deactivate the air conditioning.
When the system is activated, the indicator lamp
comes on.
Air conditioning does not operate when the air flow is disabled.
To obtain cool air more quickly, enable interior
air recirculation for a brief period. Then return
to the intake of exterior air.
Switching off the air conditioning may result in
some discomfort (humidity or misting).
Maximum air conditioning
This function automatically adjusts the
temperature setting to the lowest possible, the
air distribution towards the central and side air
vents, the air flow to maximum and activates
interior air recirculation.
►

Press knob
2 to activate/deactivate the
function (confirmed by the indicator lamp coming
on/switching off).
Once the function is deactivated, the system
returns to the previous settings.
Mono-zone/Dual-zone
The passenger temperature setting can be linked
to the driver's setting (mono-zone function).
►

Press button
11 to activate the "MONO"
function.
The function is automatically deactivated if the
passenger uses their temperature adjustment
buttons (dual-zone function).

51
Ease of use and comfort
3Switching on/off



► With the engine running, press this button to
activate/deactivate the function (confirmed by an
indicator lamp).
The period of operation depends on the outside
temperature.
The function switches off automatically to
prevent excessive power consumption.
Rear screen demisting/
defrosting
This demisting/de-icing only works with the engine running.
It also demists/de-ices the door mirrors.
► Press this button to activate/deactivate
the function (confirmed by the indicator
lamp coming on/switching off).
The function can be activated whatever the outside temperature may be.
The period of operation depends on the outside
temperature.
Demisting/defrosting therefore switches
off automatically to prevent an excessive
consumption of electrical current.
Temperature conditioning (Electric)
This function allows you to programme the
temperature in the passenger compartment to
reach a pre-defined, non-modifiable temperature
(approx. 21°C) before you enter the vehicle, on
the days and at the times of your choice.
This function is available when the vehicle is
connected or not connected.
Programming
With 10-inch touch screen
In the Climate > OPTIONS menu:Select Temperature conditioning .
►

Press
+ to add a programme.
►

Select the time of entry into the vehicle and
the desired days. Press

OK.
►

Press
ON to activate this programme.
The temperature pre-conditioning sequence
begins approximately 45 minutes before the
programmed time when the vehicle is connected
(20 minutes when it is not connected) and is
maintained for 10 minutes after.
You can set multiple programmes. Each one is saved in the system.
To optimise the driving range, we recommend
starting a programme while the vehicle is
connected.
Programming can also be carried out
from a smartphone using the MyCitroën
App application.
For more information on Remote functions,
refer to the corresponding section.
The fan noise that occurs during temperature pre-conditioning is perfectly
normal.
Operating conditions
– The function is only activated when the
ignition is switched off and the
vehicle
locked.
–

When the vehicle is not connected, the
function is only activated if the battery charge
level is greater than 50%.
–


When the vehicle is not connected and a
recurring programme is active (e.g. from Monday
to Friday), if two temperature pre-conditioning
sequences are run without the vehicle being
used, the programme will be deactivated.

53
Ease of use and comfort
3Auto® or CarPlay®, enabling certain smartphone
applications to be used on the touch screen.
For best results, use a cable made or approved
by the device manufacturer.
These applications can be managed using the
steering-mounted controls or the audio system
controls.
When the USB socket is used, the
portable device charges automatically.
While charging, a message is displayed if the
power drawn by the portable device exceeds
the current supplied by the vehicle.
For more information about how to use this
equipment, refer to the sections describing
the audio and telematics systems.
12 V accessory socket



► Plug in a 12 V accessory (with a maximum
rated power of 120 W) using a suitable adapter.
Observe the maximum power rating to
avoid damaging the 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




This system 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.
A mat can also be used provided that it is
approved by the Manufacturer.
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 the Keyless Entry and Start system, 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 metal objects (e.g. coins,
keys, vehicle remote control) in the
charging area while a device is being charged
- Risk of overheating or interrupting the
charging!
When using applications for a long time
in combination with wireless charging,
some smartphones may switch to thermal
safety and cause some functions to stop.

54
Ease of use and comfort
Checking operation
The state of the indicator lamp allows the
operation of the charger to be monitored.
State of the
indicator lampMeaning
Off Engine switched off.
No compatible devices
detected.
Charging complete.
Fixed green Compatible portable device detected.
Charging.
Flashing orange Foreign object detected in the charging zone.
Portable device not well
centred in the charging
zone.
Fixed orange Malfunction of the portable device's battery
meter.
Device battery
temperature too high.
Charger malfunction.


If the indicator lamp is fixed orange:
– remove the device, then place it back in the
centre of the charging zone.
or –

remove the device and try again in a quarter
of an hour
.
If the problem persists, have the system checked
by a CITROËN dealer or a qualified workshop.
CITROËN Hi-Fi system
(Depending on version)

The vehicle is equipped with a high-fidelity
acoustic system.
8 speakers offer the pleasure of pure and
detailed sound inside the vehicle:
–

2 tweeters and 2 woofers in the front
–


2 full range speakers in the rear
–


1 speaker in the central area of the dashboard
–


1 subwoofer under the trunk carpet
Mats
Fitting

When fitting it on the driver's side, only use
the mountings present on the carpet (a "click"
indicates proper locking).
The other mats are simply laid over the carpet.
Removing/refitting
► To remove it on the driver's side, move the
seat backwards and unclip the fasteners.
►
T
o refit it, position the mat and secure it by
pressing down.
►

Check that the mat is secured correctly
.
To avoid any risk of jamming the pedals:– Only use mats which are suited to the
fixings already present in the vehicle; these
fixings must be used.
–

Never fit one mat on top of another
.
The use of mats not approved by CITROËN
may interfere with access to the pedals and
hinder the operation of the cruise control/
speed limiter.

55
Ease of use and comfort
3The approved mats have two fasteners
located underneath the seat.
Courtesy lamps
1.Front courtesy lamp
2. Front reading lamps
3.Rear courtesy lamp
4. Rear reading lamps
Front and rear courtesy
lamps
In this position, the courtesy lamp comes
on gradually:
–

when the vehicle is unlocked.
–


when the key is removed from the ignition
switch.
– when a door is opened.
– when the remote control locking button is
activated, in order to locate the vehicle.
It switches off gradually:
–

when the vehicle is locked.
–


when the ignition is switched on.
–


30 seconds after the last door is closed.
Permanently off.
Permanent lighting.
In "Permanent lighting" mode, the lighting time
varies according to the circumstances:
–

With
the ignition off, approximately 10 minutes.
–

In energy saving mode, approximately 30
seconds.
–


With the engine running, unlimited.
When the front courtesy lamp is in the
"Permanent lighting" position, the rear
courtesy lamp also comes on, unless it is in
the "Permanently off" position.
To switch off the rear courtesy lamp, put it in
the "Permanently off" position.
Reading lamps
► With the ignition on, operate the
corresponding switch.
Do not place anything against the
courtesy lamps.
Interior ambient lighting
The interior ambient lighting casts soft lighting in
the passenger compartment, both day and night.
Activation/deactivation and adjustment of the brightness are set via the Driving/
Vehicle touch screen menu.
Boot fittings

1. Boot lamp
2. Stowing rings
3. Side storage boxes
4. Boot carpet or 2-position boot floor
5. Storage well
The stowing rings are designed to secure
luggage using different types of retaining
nets.
These retaining nets are available as an
accessory.
For more information, contact a CITROËN
dealer or a qualified workshop.

56
Ease of use and comfort
2-position boot floor
This two-position floor allows the boot volume to
be optimised using the lateral stops located on
the sides:
–
High position ( 100

kg max.): to obtain a flat
floor up to the front seats, when the rear seats
are folded down.
–

Low position ( 150

kg max.): maximum boot
volume.
On certain versions, the adjustable boot
floor cannot be fitted in the low position.
To change the height:
►

Lift and pull the floor towards you using its
central handle, then use the lateral stops to
move it.
►


Push the floor all the way forwards to place it
in the desired position.


To keep it in the inclined position:
► From the high position, lift the floor towards
the boot.
►

T
ake it past the retractable stops, then rest
the floor on these stops.
Storage well

► Lift the boot floor as far as possible, then lift
the carpet to access the storage well.
Depending on version, it includes:
–

A
temporary puncture repair kit with the tool
kit.
–

A
spare wheel with the tool kit.
–

The traction battery charging cable (Electric).
Boot lamp
It comes on automatically when the boot is
opened and goes off automatically when the
boot is closed.
The lighting time varies according to the
circumstances:
–
When the ignition is off, approximately 10
minutes.
–


In energy saving mode, approximately 30
seconds.
–


With the engine running, unlimited.

58
Lighting and visibility
Switching on the lamps after
switching off the ignition
To reactivate the lighting control, rotate the
ring to the "AUTO" position, then to the
desired position.
If the driver's door is opened, a temporary
audible signal warns the driver that the lamps
are on.
They will go off automatically after a period
of time that depends on the level of charge in
the battery (entering energy economy mode).
In some weather conditions (e.g. low
temperature or humidity), misting on the
internal surface of the glass of the headlamps
and rear lamps is normal, and will disappear
after the lamps have been on for a few
minutes.
Never look too closely at the light beam
of LED technology lamps - risk of serious
eye injury!


Travelling abroad
If planning to use your vehicle in a
country that drives on the other side of the
road, the dipped beam headlamps must be
adjusted to avoid dazzling oncoming drivers.
Contact a CITROËN dealer or a qualified
workshop.
Daytime running lamps/
Sidelamps
These LED lamps at the front and rear of the
vehicle light up automatically when the engine
starts.
They perform the following functions:
–

Daytime running lamps (lighting control stalk
at position

"AUTO" with adequate ambient light).
–

Sidelamps (lighting control stalk at position
"

AUTO" with low ambient light or "Sidelamps
only" or "Dipped/main beam headlamps").
Direction indicators

► Left or right: lower or raise the lighting control
stalk, beyond the point of resistance.
If you keep the direction indicators on for
more than 20 seconds, the volume of the
audible signal will increase if the speed is
above 50 mph (80 km/h).
Three flashes
► Press briefly upwards or downwards, without
going beyond the point of resistance; the
direction indicators will flash 3 times.
Parking lamps
(Depending on version)
Vehicle side marking by lighting the sidelamps
on the traffic side only.
►

Within one minute after switching off the
ignition, operate the lighting control stalk

70
Safety
automatic post collision braking is not available,
as it can occur in destructive accidents or in
other specific accident scenarios.
It is possible to override the automatic braking by
pressing the brake pedal or accelerator pedal.
Operating conditions
The system operates, if the following conditions
are met:
–
Airbags or pyrotechnic seat belt pretensioners
have been deployed by the collision.
–


Braking systems and electric functions remain
continuously operational during and after
collision.
–


Driver has not depressed the brake or
accelerator pedal.
Malfunction
In the event of a
malfunction, one of these
warning lamps will come on fixed on the
instrument panel, accompanied by the Service
warning lamp, the display of a message and an
audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Emergency braking
assistance (EBA)
This system reduces the emergency stopping
distance, by optimising the braking pressure. It is triggered in relation to the speed at which
the brake pedal is depressed. The effect of this
is a reduction in the resistance of the pedal and
an increase in braking efficiency.
Anti-slip regulation (ASR)
/ Dynamic stability control
(DSC)
Anti-slip regulation (or traction control) optimises
traction by using engine braking and by applying
the brakes on the driving wheels to avoid one
or more wheels spinning. It also enhances the
vehicle's directional stability.
If there is a difference between the vehicle’s
trajectory and the path desired by the driver, the
dynamic stability control system automatically
uses engine braking and the brakes on one or
more wheels to return the vehicle to the desired
path, within the limits of the laws of physics.
These systems are activated automatically every
time the vehicle is started.
These systems are activated in the event of a problem with grip or trajectory
(confirmed by this warning lamp flashing on the
instrument panel).
Deactivation/Reactivation
In exceptional conditions (starting a vehicle
which is bogged down, stuck in snow, on soft
ground, etc.), it may be advisable to deactivate
the ASR system, so that the wheels can turn
freely and regain grip.
Reactivate the system as soon as the level of
grip permits.
This function is set via theDriving/Vehicle touch screen menu.
Deactivation is confirmed by the lighting
of this indicator lamp on the instrument
panel and the display of a message.
The ASR system is reactivated automatically
every time the ignition is switched off, or at
speeds over 31 mph (50
km/h).
Reactivation is manual below 31 mph (50 km/h).
Malfunction
In the event of a malfunction, this warning
lamp comes on on the instrument panel,
accompanied by the display of a message and
an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
ASR/DSC
These systems enhance safety during
normal driving, but should not encourage
the driver to take extra risks or drive at high
speed.
It is in conditions of reduced grip (rain, snow,
ice) that the risk of loss of grip increases. It
is therefore important for your safety to keep
these systems activated in all conditions, and
particularly in difficult conditions.
Correct operation of these systems depends
on compliance with the manufacturer's
recommendations relating to the wheels

84
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 before performing operations
that require sustained attention (e.g.

settings).
►

During long trips, take a break every 2 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 very 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
damaging the braking system!
Never park the vehicle and never
leave the engine running on a
flammable surface (e.g.
dry grass, dead
leaves).The vehicle exhaust system is very
hot, even several minutes after the engine
stops. Risk of fire!
Never drive on surfaces covered with
vegetation (e.g. tall grass,
accumulated dead leaves, crops, debris)
such as a field, a country lane overgrown
with bushes or a grassy verge.
This vegetation could come into contact with
the vehicle's exhaust system
or other systems
which are very hot. Risk of fire!
Make sure you do not leave any item in
the passenger compartment which could
act like a magnifying glass under the effect of
the sun's rays and cause a fire. Risk of fire or
damage to interior surfaces!
Never leave the 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 your vehicle's
electrical systems.


If the vehicle absolutely must drive through a
flooded section of road:
►

Check that the depth of the 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.

85
Driving
6Noise (Electric)
On the outside
Due to the vehicle’s quiet operation when
driving, the driver must pay particular attention.
When manoeuvring, the driver must always
check the vehicle's immediate surroundings.
At speeds of up to 19 mph (30 km/h), the
pedestrian horn warns other road users of the
vehicle’s presence.
Cooling the traction battery
The cooling fan comes on during
charging to cool the on-board charger and the
traction battery.
On the inside
During use, you may hear certain perfectly
normal noises specific to electric vehicles, such
as:
–

T
raction battery relay when starting.
–

V
acuum pump when braking.
–

V
ehicle tyres or aerodynamics when driving.
–

Jolting and knocking noise during hill starts.
Towing
Driving with a trailer places greater
demands on the towing vehicle and
particular care must be taken.
Do not exceed the maximum towable
weights.
At altitude: reduce the maximum load by
10% per 1,000 metres of altitude; the lower
air density at high altitudes decreases engine
performance.
New vehicle: do not tow a trailer until the
vehicle has 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 the amount of heating produced.
►


Pay constant 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
Using the engine brake is recommended to limit
the overheating of the brakes. Braking distances
are increased when towing a trailer.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.