2020 CITROEN C4 stop start

46
Ease of use and comfort
windscreen, or from the inside in air recirculation
mode.
Controls
Depending on version, the controls are
accessible in the Climate touch screen menu
or are grouped together on the centre console
panel.
Air distribution

1. Windscreen demisting/de-icing vents
2. Front side window demisting/de-icing vents
3. Adjustable and closable side air vents
4. Adjustable and closable central air vents
5. Air outlets to the front footwells
6. Air outlets to the rear footwells
7. Adjustable and closable air vents
Advice
Using the ventilation and air
conditioning system
►

T

o ensure that air is distributed evenly,
keep the external air intake grilles at the base
of the windscreen, the nozzles, the vents, the
air outlets and the air extractor in the boot
free from obstructions.
►

Do not cover the sunshine sensor located
on the dashboard; this sensor is used to
regulate the automatic air conditioning
system.
►


Operate the air conditioning system for at
least 5 to 10 minutes once or twice a month to
keep it in good working order

.
►

If the system does not produce cold air
,
switch it off and contact a CITROËN dealer or
a qualified workshop.
When towing a large load on a steep gradient
in high temperatures, switching off the air
conditioning increases the available engine
power, enhancing the towing capacity.
Avoid driving for too long with the ventilation off or with prolonged operation
of interior air recirculation. Risk of misting and
deterioration of the air quality!
If the interior temperature is very high
after the vehicle has stood for a long
time in the sunshine, air the passenger
compartment for a few moments.
Put the air flow control at a setting high
enough to quickly change the air in the
passenger compartment.
Condensation created by the air
conditioning results in a discharge of
water underneath the vehicle. This is perfectly
normal.
Servicing the ventilation and air
conditioning system
►

Ensure that the passenger compartment
filter is in good condition and have the filter
elements replaced regularly

.
We recommend using a composite passenger
compartment filter. Its specific active additive
helps protect against polluting gases and bad
smells.
►

T

o ensure correct operation of the
air conditioning system, have it checked
according to the recommendations in the
Manufacturer’s service schedule.
Stop & Start
The heating and air conditioning systems
only operate when the engine is running.
Temporarily deactivate the Stop & Start
system to maintain a comfortable temperature
in the passenger compartment.

47
Ease of use and comfort
3For more information on the Stop &
Start system, refer to the corresponding
section.
ECO driving mode
Selecting this mode reduces electrical
energy consumption, but restricts the
performance of the heating and air
conditioning systems, although it does not
deactivate them.
Manual air conditioning

1. Adjusting the temperature
Air conditioning on/off
2. Adjusting the air flow
System switch-off
3. Adjusting the air distribution
4. Interior air recirculation
5. Rear screen demisting/de-icing
The air conditioning system only operates with
the engine running.
Adjusting the temperature
► Turn the knob 1 from blue (cold) to red (hot).
Air flow adjustment
► Turn the thumbwheel 2 to obtain a sufficient
air flow to ensure your comfort.
If the air flow control is in
the minimum position (system
deactivated), the temperature in the vehicle
will no longer be controlled. A slight flow of air
can still be felt, due to the forward movement
of the vehicle.
Adjusting the air distribution
Windscreen and side windows
Central and side air vents
Footwells
►

Press one of the buttons
3 to adjust the air
distribution inside the passenger compartment.
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 to turn the air conditioning on/
off.
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).
Switching the system off
► Press knob 2; all the indicator lamps of the
system go out.
This action deactivates all of the functions of the
air conditioning system.
The temperature is no longer regulated. A slight
flow of air can still be felt, due to the forward
movement of the vehicle.
Dual-zone automatic air
conditioning
This system automatically controls the activation
of the air conditioning system, regulating the
temperature, air flow and air distribution inside
the passenger compartment.

50
Ease of use and comfort
Automatic Visibility programme
For more information on button 5, refer to the
“Front Demisting/Defrosting ” section.
Ventilation 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 period which depends on the
battery charge.
This function does not operate the air
conditioning.
Interior air recirculation
The intake of exterior air prevents the formation
of mist on the windscreen and side windows.
Recirculating the interior air isolates the
passenger compartment from outside odours
and fumes and allows the desired passenger
compartment temperature to be achieved more
rapidly.
► Press this button to activate/deactivate
the function (confirmed by the
illumination/extinction of the indicator lamp).
This function is activated automatically when reverse gear is engaged.
Front demisting
- defrosting
With manual air
conditioning
► Adjust the temperature to maximum (red).
► Adjust the air flow to maximum.
► Press this button to activate the air
distribution to the "Windscreen" position;
its indicator lamp comes on.
►

Check that the recirculation of interior air is
deactivated; its indicator lamp must be off.
►


Switch on the air conditioning by pressing the
"

A/C" button; its indicator lamp comes on.
With automatic dual-zone
air conditioning
Automatic Visibility programme
This mode allows the windscreen and side
windows to be demisted or defrosted as quickly
as possible.
► Press this button to activate/deactivate
the mode (confirmed by the illumination/
extinction of the
indicator lamp).
The programme automatically manages the air
conditioning (depending on version), air flow
and air intake, and provides optimum distribution
towards the windscreen and side windows.
It is possible to manually change the air flow
without deactivating the automatic Visibility
programme.
With Stop & Start, when demisting has
been activated, STOP mode is not
available.
In wintry conditions, before moving off,
remove all snow or ice on the windscreen
near the camera.
Otherwise, the operation of the equipment
using the camera may be affected.
Heated windscreen

In cold weather, this function heats the entire
windscreen and complements the Automatic
Visibility programme to speed up the evacuation
of elements that interfere with visibility (e.g.
dew,
mist, frost, snow), located on either side of the
windscreen.
It can be used both before setting off and while
driving.

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.

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.

86
Driving
Anti-theft protection
Electronic immobiliser
The keys contain a code, which must be
recognised by the vehicle before starting is
possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact a CITROËN dealer.
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 the charging of accessories.
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
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 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 need to apply
significant force to move the steering
wheel (e.g.
wheels turned to full lock).
►

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 has started, release the
key and allow it to return to position 2.
Petrol engines
After a cold start, preheating the catalytic
converter can cause noticeable engine
vibrations, for anything up to 2 minutes
(accelerated idle speed).
►

With a
Diesel engine, turn the key to position
2, to

activate the engine preheating system.
Wait until this warning lamp goes off on
the instrument panel, then turn the key to
position 3 without pressing the accelerator pedal,
to operate the starter motor. Once the engine
has started, release the key and allow it to return
to position 2.
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.
In mild conditions, do not leave the engine
to warm up while stationary, but move off
straight away and drive at moderate speed.
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.