2020 CITROEN C4 warning

135
Driving
6– The system may indicate that a space has
been found but will not offer it because of a fixed
obstacle on the opposite side of the manoeuvre,
which would not allow the vehicle to follow a
trajectory required for parking.
–

The system may indicate that a space has
been found but the manoeuvre will not be
triggered, because the width of the lane is
insufficient.
–


The system is not designed for performing the
parking manoeuvre on a sharp bend.
–


The system does not detect spaces that
are much larger than the vehicle itself or that
are delimited by obstacles that are too low
(pavements, studs, etc.) or too thin (trees, posts,
wire fences, etc.).
–


If the boot is heavily loaded, the tilt of the
vehicle towards the rear may interfere with the
distance measurements.
Do not use the function under the
following exterior conditions:
–

Alongside a soft shoulder (e.g. ditch) or
quay or on the edge of a drop.
–


When the road surface is slippery (e.g. ice).
If any of the following malfunctions
occurs, do not use the system:
–

If a tyre is under-inflated.
–


If one of the bumpers is damaged.
–


If one of the cameras is faulty
.
If the vehicle has undergone any of the
following modifications, do not use the
function:
–

When carrying an object extending beyond
the dimensions of the vehicle (ladder on the
roof bars, bicycle carrier on the tailgate, etc.).
–


With a non-approved towball in place.
–


With snow chains fitted.
–


When driving on a small-diameter or
"space-saver" type spare wheel.
–


When the wheels fitted are a different size
from the original ones.
–


After modifying one or both bumpers
(added protection).
–


If the sensors have been repainted other
than by the CITROËN dealer network.
–


With sensors not approved for the vehicle.
Malfunctions
When the function is not activated, this
indicator lamp will flash briefly and an
audible signal will be emitted to indicate a
system malfunction.
If the malfunction occurs while the system is in
use, the warning lamp goes off.
If the parking sensor malfunction occurs
during use, indicated by this warning lamp
coming on and the display of a message, it
causes the function to deactivate.
In the event of a malfunction, have the system
checked by a CITROËN dealer or a qualified
workshop.
In the event of a power steering
malfunction, this warning lamp is
displayed on the instrument panel, accompanied
by a warning message.
You must stop as soon as it is safe to do so.
Contact a CITROËN dealer or a qualified
workshop.

137
Practical information
7Compatibility of fuels
Petrol fuels conforming to the EN228 standard
containing up to 5% and 10% ethanol
respectively.

Diesel fuels conforming to the EN590, EN16734
and EN16709 standards and containing up to
7%, 10%, 20% and 30% fatty acid methyl ester
respectively. The use of B20 or B30 fuels, even
occasionally, imposes special maintenance
conditions referred to as "Arduous conditions".

Paraffinic Diesel fuel conforming to the EN15940
standard.
The use of any other type of (bio) fuel (vegetable or animal oils, pure or diluted,
domestic fuel, etc.) is strictly prohibited (risk
of damage to the engine and fuel system).
The only fuel additives authorised for use are those that meet the B715001 (petrol)
or B715000 (Diesel) standards.
Diesel at low temperature
At temperatures below 0 °C (+32 °F), the
formation of paraffins in summer-type Diesel fuels could prevent the engine from operating
correctly
. In these temperature conditions, use
winter-type Diesel fuel and keep the fuel tank
more than 50 % full.
At temperatures below -15 °C (+5 °F) to avoid
problems starting, it is best to park the vehicle
under shelter (heated garage).
Travelling abroad
Certain fuels could damage your vehicle’s
engine.
In certain countries, the use of a particular
fuel may be required (specific octane rating,
specific trade name, etc.) to ensure correct
operation of the engine.
For all additional information, consult a dealer.
Refuelling
Fuel tank capacity: approximately 50 litres.
Reserve level: approximately 6 litres.
Low fuel level
When the low fuel level is reached, this
warning lamp lights up on the instrument
panel, accompanied by the display of a message
and an audible signal. When it first comes on,
about 6 litres of fuel remain.
Until sufficient fuel is added, this warning lamp
appears every time the ignition is switched on,
accompanied by an onscreen message and
an audible signal. When driving, this message
and audible signal are repeated with increasing
frequency as the fuel level drops towards 0.
You must refuel as soon as possible to avoid
running out of fuel.
For more information on Running out of fuel
(Diesel), refer to the corresponding section.
A small arrow by the warning lamp indicates which side of the vehicle the
fuel filler flap is located on.
Stop & Start
Never refuel with the engine in STOP
mode; you must switch off the ignition.
Refuelling
When refuelling, at least 5 litres must be added
in order to be registered by the fuel gauge.
Opening the filler cap may create a noise caused
by an inrush of air. This vacuum is normal,
caused by the sealing of the fuel system.
To refuel in complete safety:
►

Always switch off the engine.

138
Practical information

► With the vehicle unlocked, press the rear-
central part of the filler flap to open it.
►

T
ake care to select the pump that delivers the
correct fuel type for your vehicle's engine (see a
reminder label on the inside of the filler flap).
►

T
urn the filler cap to the left, remove it and
place it on its support (on the filler
flap).
►

Insert the filler nozzle and push it in as far as
possible before starting to refuel (to minimise the
risk of splashing).
Do not continue after the nozzle’

s third cut-
out. Doing so may cause malfunctions.
►

Put the filler cap back in place and turn it to
the right.
►


Close the fuel filler flap.
If you have put in the wrong fuel for the
vehicle, you must have the fuel tank
drained and filled with the correct fuel before
starting the engine.
The vehicle is fitted with a catalytic converter,
which helps to reduce the level of harmful
emissions in the exhaust gases.
For petrol engines, you must use unleaded
fuel.
The filler neck is narrower, admitting unleaded
petrol nozzles only.
Misfuel prevention (Diesel)
(Depending on country of sale.)
This mechanical device prevents filling the tank
of a Diesel vehicle with petrol.
Located in the filler neck, the misfuel prevention
device is visible when the filler cap is removed.
Operation

When a petrol filler nozzle is introduced into the
fuel filler neck of a Diesel vehicle, it comes into
contact with the flap. The system remains closed
and prevents filling.
Do not persist but introduce a Diesel type
filler nozzle.
The use of a fuel jerrycan to fill the tank remains possible.
Travelling abroad
As Diesel fuel pump nozzles may be
different in other countries, the presence
of the misfuel prevention device may make
refuelling impossible.
Before travelling abroad, it is advisable to
check with a CITROËN dealer if the vehicle is
suitable for the distribution equipment of the
countries visited.
Charging system
(Electric)
400 V electrical system
The electric drive system, which operates at a
voltage of approximately 400 V, is identified by
orange cables and its components are marked
with this symbol:


An electric vehicle’s power train can become hot during use and after
switching off the ignition.
Comply with the warning messages shown
on the labels, particularly inside the charging
flap.

139
Practical information
7High voltage system voltage is
dangerous and can cause burns or other
injuries or even fatal electric shock.
Since damage to high voltage components is
not visible, CITROËN recommends that you:
–

Never touch the components, damaged
or not, and never let your jewelry or other
metallic objects come into contact with these
components.
–


Never work on the orange high voltage
cables or on any other high voltage
component marked with the Electric risk label.
Any intervention on the high voltage system
must be carried out by qualified persons in
workshops qualified and approved to carry
out this type of work.
–


Never damage, modify or remove the
orange high voltage cables or disconnect
them from the high voltage network.
–


Never open, modify or remove the cover of
the traction battery

.
–

Never work with cutting and forming
tools or heat sources near high voltage
components and cables.
In case of low level of fluid in the cooling
tank, the refilling shall only be performed in a
qualified and trained workshop to verify that
the leakage is not in the traction battery

.
Any intervention on the high voltage system
must be carried out by qualified persons in
workshops qualified and approved to carry
out this type of work.Damage to the vehicle or the traction battery
could result in the leakage of toxic gases or
fluids either immediately or later. CITROËN
recommends that you:
–

Always inform the fire and emergency
services in the event of an incident, warning
that the vehicle is equipped with a traction
battery

.
–

Never touch the liquids leaking from the
traction battery

.
–

Do not inhale the gases emitted by the
traction battery which are toxic.
–


Move away from the vehicle in the event of
incident or accident, the gases emitted being
flammable and could cause a fire.


This label is intended solely for use by firefighters and maintenance services in
the event of any work on the vehicle.
No other person must touch the device shown
on this label.
In the event of an accident or impact
to the vehicle’s underbody
In these situations, the electrical
circuit or the
traction battery can be seriously damaged.
Stop as soon as it is safe to do so and switch
off the ignition.
Contact a CITROËN dealer or a qualified
workshop.
When washing
Before washing the vehicle, always
check that the charging flap is closed
correctly.
Never wash the vehicle while the battery is
on charge.
High-pressure washing
To avoid damaging the electrical
components, it is expressly prohibited to
use high-pressure washing in the engine
compartment or under the body.
Do not use a pressure greater than 80 bar
when washing the bodywork.
Never allow water or dust to enter the
connector or charging nozzle - risk of
electrocution or fire!
Never connect / disconnect the charging
nozzle or cable with wet hands - risk of
electrocution!

146
Practical information
For a full charge, follow the desired charging
procedure without pausing it, until it ends
automatically. Charging can be either immediate
or deferred (except fast public charger, mode 4).
You can stop domestic or accelerated charging
at any time by unlocking the vehicle and
removing the nozzle. For superfast charging,
refer to the fast public charger.
For more information on the charging displays
on the Instrument panel and the Touch screen,
refer to the corresponding section.
It is also possible to monitor the charging
progress using the MyCitroën App
application.
For more information on Remote functions,
refer to the corresponding section.
As a safety measure, the engine will not start if the charging cable is plugged into
the connector on the vehicle. A warning is
displayed on the instrument panel.
Cooling the traction battery
The cooling fan in the engine
compartment comes on during charging to
cool the on-board charger and the traction
battery.
Low load / Driving
Driving when the charge level of the
traction battery is too low can lead to the
vehicle breaking down and can lead to
accidents or serious injuries. ALWAYS make
sure the traction battery has a sufficient
charge level.
Low load / Parking
If the outside temperature is negative,
it is recommended not to park your vehicle
outside for several hours at a low load (less
than 20%).
Vehicle in storage for more than
1 month
In the event of a long period of non-use of
the vehicle (beyond 4
weeks) without the
possibility of charging when restarting, the
self-discharge may make it impossible to
restart if the traction battery charge level
is a low or very low, especially at negative
ambient temperatures. ALWAYS make sure
that the traction battery has a charge between
20% and 40% if you do not plan to use your
vehicle for several weeks.
Do not connect the charging cable.
Always park the vehicle in a place with
temperatures between -10°C and 30°C
(parking in a place with extreme temperatures
can damage the traction battery).
Disconnect the cable from the (+) terminal
of the accessory battery in the engine
compartment.
Connect a 12 V battery charger to the (+)
and (-) terminals of the accessory battery
about every 3 months in order to recharge the
accessory battery and maintain an operating
voltage.
Precautions
Our electric vehicles have been developed in
accordance with the recommendations on the
maximum limits for electromagnetic fields, as
issued by the International Commission on Non-
Ionizing Radiation Protection
(ICNIRP - 1998
Guidelines).
Wearers of pacemakers or equivalent
devices
Ask your doctor about what precautions you should take, or ask the manufacturer
of your implanted electro-medical device about
whether its operation is guaranteed in an
environment which complies with the ICNIRP
recommendations.
If in doubt
Domestic or accelerated charging: do
not remain inside or near the vehicle, or near
the charging cable or charging unit, even for
a short time.
Superfast charging: do not use the system
yourself and avoid approaching public fast
charging points. Leave the area and ask a
third party to recharge the vehicle.

158
Practical information
AdBlue® (BlueHDi)
An alert is triggered when the reserve level is
reached.
For more information on the Indicators and in
particular the AdBlue range indicators, refer to
the corresponding section.
To avoid the vehicle being immobilised in
accordance with regulations, you must top up the
AdBlue tank.
For more information on AdBlue
® (BlueHDi),
and in particular the supply of AdBlue, refer to
the corresponding section.
Checks
Unless otherwise indicated, check these
components in accordance with the
manufacturer's service schedule and according
to your engine.
Otherwise, have them checked by a CITROËN
dealer or a qualified workshop.
Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation of
components as important as those in the
braking system, CITROËN selects and offers
very specific products.
12 V battery
The battery does not require any maintenance.
Check regularly that the terminals are correctly
tightened (versions without quick-release
terminals) and that the connections are clean.
For more information on the precautions
to take before any work on the 12 V
battery, refer to the corresponding section.
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery of
specific technology and specification.
Its replacement should be carried out only by
a CITROËN dealer or a qualified workshop.
Passenger compartment
filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
A clogged passenger compartment filter
can adversely affect air conditioning
system performance and generate
undesirable odours.
Air filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
Oil filter
Change the oil filter each time the engine
oil is changed.
Particle filter (Diesel)
The start of clogging of the particle filter is
indicated by the temporary lighting of this
warning lamp, accompanied by an alert
message.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 37
mph (60 km/h) until the warning lamp
goes off.
Following prolonged operation of the
vehicle at very low speed or at idle, you
may, in exceptional circumstances, notice
water vapour coming from the exhaust while
accelerating. These emissions have no
impact on the vehicle’s behaviour and the
environment.
New vehicle
During the first few particle filter
regeneration operations, you may notice a
"burning" smell. This is perfectly normal.

160
Practical information
Timing and accessory kits
The timing and accessory kits are used
from the time the engine is started until it
is switched off. It is normal for them to wear over
time.
A
faulty timing or accessory kit can damage
the engine, rendering it unusable. Observe the
recommended replacement frequency, stated in
distance travelled or time elapsed, whichever is
reached first.
AdBlue® (BlueHDi)
To respect the environment and ensure compliance with the Euro 6 standard, without
adversely affecting the performance or fuel
consumption of its Diesel engines, CITROËN
has taken the decision to equip its vehicles with
a system that combines SCR (Selective Catalytic
Reduction) with a Diesel Particle Filter (DPF) for
the treatment of exhaust gases.
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue® is contained in a special
tank holding about 15 litres.
Its capacity allows a driving range of
approximately 4,000
miles (6,500 km),
which
may vary considerably depending on your
driving style.
An alert system is triggered once the reserve
level is reached: it is then possible to drive for a
further 1,500 miles (2,400
km) before the tank is
empty and the vehicle is immobilised.
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators, please refer to the
corresponding sections.
Once the AdBlue® tank is empty, a device
required by law prevents the engine from
being restarted.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard and the vehicle starts
polluting the environment.
In the event of a confirmed SCR system
malfunction, it is essential to visit a CITROËN
dealer or a qualified workshop. After 685
miles (1,100 km), a device is automatically
activated to prevent the engine from starting.
In both cases, a range indicator indicates
the distance that can be travelled before the
vehicle is stopped.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater for the
AdBlue® tank, allowing you to continue driving
in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reserve level has been reached.
For the correct operation of the SCR
system:
–

Use
only AdBlue
® fluid that meets the ISO
22241 standard.
–

Never

transfer AdBlue
® to another container
as it would lose its purity.
–

Never

dilute AdBlue
® with water.
You can obtain AdBlue
® from a CITROËN dealer
or a qualified workshop, as well as service
stations equipped with AdBlue
® pumps specially
designed for passenger vehicles.
Recommendations on storage
AdBlue® freezes at about -11°C and deteriorates
above +25°C. Containers should be stored in a
cool area and protected from direct sunlight.
Under these conditions, the fluid can be kept for
at least a year.
If the fluid has frozen, it can be used once it has
completely thawed out at room temperature.
Never store AdBlue® containers in your
vehicle.

165
In the event of a breakdown
8Warning triangle
This reflective and dismantlable device is to be
installed on the side of the road when a vehicle
is broken down or damaged.
Before getting out of the vehicle
Turn on the hazard warning lamps, then
put on the safety vest to assemble and install
the triangle.
Storage

Use the straps on the boot side trim to stow the
folded triangle or its storage box.
Assembling and placing the triangle


For versions supplied with a triangle as original
equipment, refer to the illustration above.
For other versions, refer to the assembly
instructions provided with the triangle.
►

Put the triangle in place behind the vehicle,
as required by local legislation.
Running out of fuel
(Diesel)
With Diesel engines, the fuel system must be
primed if you run out of fuel.
Before starting to prime the system, it is
essential to put at least 5 litres of Diesel into the
fuel tank.
For more information on Refuelling and
on Misfuel prevention (Diesel), refer to
the corresponding section.
1.5 BlueHDi engines
► Switch on the ignition (without starting the
engine).
►

W
ait around 1 minute and switch off the
ignition.
►

Operate the starter motor to start the engine.
If the engine does not start at the first attempt,
do not keep trying, but restart the procedure.
Tool kit
Set of tools supplied with the vehicle.
Its content depends on your vehicle's equipment:
–

T
emporary puncture repair kit.
–

Spare wheel.
Access to the tools
Depending on version, the tool kit is stored in a
bag or in a storage box in the boot.
These tools are specific to the vehicle and may vary according to the level of
equipment.
Do not use them for any other purpose.
The jack must only be used to change a wheel with a damaged or punctured tyre.
Do not use any jack other than the one
supplied with the vehicle.
If the vehicle does not have its original jack,
contact a CITROËN dealer or a qualified
workshop to obtain the one that was intended
by the manufacturer.