Citroen C4 (2016 year). Manual — part 15

Practical information

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Bonnet

Push the exterior safety catch B to the left

and raise the bonnet.

Opening

Open the front left door.

F Pull the interior bonnet release lever A,

located at the bottom of the door aperture.

Unclip the stay C from its housing on the

back of the bonnet.

Fix the stay in the notch to hold the bonnet

open.

Closing

Take the stay out of the support notch.

Clip the stay in its housing on the back of

the bonnet.

F Lower the bonnet and release it at the end

of its travel.

Pull on the bonnet to check that it is

secured correctly.

The cooling fan may start after switching
off the engine: take care with articles and
clothing that might be caught by the fan
blades.

Before doing anything under the
bonnet, switch off the Stop & Start
system to avoid any risk of injury
resulting from an automatic change to
START mode.

Do not open the bonnet in high winds.
When the engine is hot, handle the
exterior safety catch and the bonnet
stay with care (risk of burns).

Because of the presence of electrical
equipment under the bonnet, it is
recommended that exposure to water
(rain, washing, ...) be limited.

The location of the interior bonnet
release lever prevents opening of
the bonnet while the front left door is
closed.

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Petrol engines

Power steering reservoir.

Screenwash and headlamp wash reservoir.

Coolant header tank.

Brake fluid reservoir.

Battery / Fuses.

Fusebox.

Air filter.

Engine oil dipstick.

Engine oil filler cap.

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* According to engine.

Diesel engines

Power steering reservoir.

Screenwash and headlamp wash

reservoir.

Coolant header tank.

Brake fluid reservoir.

Battery / Fuses.

Fusebox.

Air filter.

Engine oil dipstick.

Engine oil filler cap.

10.

Priming pump*.

The Diesel fuel system operates under high
pressure:
-

Never carry out any work on this system
yourself.

HDi engines make use of advanced
technology.

All maintenance and repairs require specially trained
staff, which only a CITROËN dealer can provide.

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Checking levels

The check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles so equipped, or
using the dipstick.

Engine oil level

Checking using
the dipstick

Check all of these levels regularly, in line with the manufacturer's service schedule. Top them up if necessary, unless otherwise indicated.
If a level drops significantly, have the corresponding system checked by a CITROËN dealer or a qualified workshop.

It is normal to top up the oil level between
two services (or oil changes). CITROËN
recommends that you check the level, and top
up if necessary, every 3 000 miles (5 000 kms).

A = MAX

B = MIN

If you find that the level is above the A

mark or

below the B

mark, do not start the engine.

If the level is above the MAX

mark (risk

of damage to the engine), contact a
CITROËN dealer or a qualified workshop.

If the level is below the MIN

mark, you

must top up the engine oil.

Oil grade

Before topping-up the oil or changing the oil,
check that the oil is the correct grade for your
engine and conforms to the manufacturer's
recommendations.

Take care when working under the
bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and
the cooling fan could start at any time
(even with the ignition off).

To ensure that the reading is correct,
your vehicle must be parked on a level
surface with the engine having been off
for more than 30 minutes.

Locate the dipstick in the engine

compartment of your vehicle.

For more information on the petrol or Diesel
engine, refer to the corresponding section.
F

Take the dipstick by its coloured grip and

remove it completely.

Wipe the end of the dipstick using a clean

non-fluffy cloth.

Refit the dipstick and push fully down, then

pull it out again to make the visual check:
the correct level is between the marks A
and B

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Topping-up the engine oil level

Locate the oil filler cap in the engine

compartment of your vehicle.

For more information on the petrol or Diesel
engine, refer to the corresponding section.
F

Unscrew the oil filler cap to reveal the filler

aperture.

Add oil in small quantities, avoiding any

spills on engine components (risk of fire).

Wait a few minutes before checking the

level again using the dipstick.

Add more oil if necessary.

After checking the level, carefully refit the

oil filler cap and the dipstick in its tube.

After topping-up the oil, the check when
switching on the ignition with the oil level
indicator in the instrument panel is not valid
during the 30 minutes after topping up.

Engine oil change

Refer to the manufacturer's service schedule
for details of the interval for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.

Brake fluid level

Changing the fluid

Refer to the manufacturer's service schedule
for details of the interval for this operation.

Fluid specification

The brake fluid must conform to the
manufacturer's recommendations.

The brake fluid level should be close
to the "MAX" mark. If it is not, check
the brake pad wear.

Power steering
fluid level

The power steering fluid level should
be close to the "MAX" mark. With
the engine cold, unscrew the cap to
check the level.

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Screenwash / headlamp
wash fluid level

Specification of the fluid

To ensure optimum cleaning and to avoid
freezing, the fluid should never be topped up or
replaced by plain water.
In wintry conditions, the use of a fluid
with an ethyl alcohol or methanol base is
recommended.

To check the level or top up the
fluid on vehicle fitted with headlamp
washers, immobilise the vehicle and
switch of the engine.

F Open the bonnet and secure it with the

stay.

Open the screenwash reservoir filler cap.

Take and pinch the level gauge to block its

breather.

Remove the gauge completely from

the reservoir to read the level in the
transparent section.

Coolant level

The coolant level should be close
to the "MAX" mark but should never
exceed it.

Fluid specification

The coolant must conform to the
manufacturer's recommendations.

The cooling fan may start after
switching off the engine: take care
with articles and clothing that might
be caught by the fan blades.

When the engine is warm, the temperature of
the coolant is regulated by the fan.
In addition, as the cooling system is
pressurised, wait at least one hour after
switching off the engine before carrying out
any work.
To avoid any risk of scalding, unscrew the cap
by two turns to allow the pressure to drop.
When the pressure has dropped, remove the
cap and top up the level.

Top up if necessary.

F Refit the filler cap to the reservoir and

close the bonnet.

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Used products

The additive reservoir low level is indicated by:

Topping up

The reservoir must be topped up without delay
by a CITROËN dealer or a qualified workshop.

- fixed illumination of the particle

filter warning lamp, accompanied
by an audible signal and a
message that the particle filter
additive level is too low.

Additive level (Diesel with
particle filter)

Avoid prolonged contact of used oil or
fluids with the skin.
Most of these fluids are harmful to
health or indeed very corrosive.

Do not discard used oil or fluids into
sewers or onto the ground.
Take used oil to a CITROËN dealer or
a qualified workshop (France) or to an
authorised waste disposal site.

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Checks

Particle filter (Diesel)

- fixed illumination of the particle

filter warning lamp, accompanied
by an audible signal and a
message that there is a risk of
blockage of the particle filter.

The presence of this label, in particular with
the Stop & Start system, indicates the use of
a specific 12 V lead-acid battery with special
technology and specification. The involvement
of a CITROËN dealer or a qualified workshop
is essential when replacing or disconnecting
the battery.

As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 40 mph (60 km/h) until the warning lamp
goes off.
If the warning lamp stays on, refer to the
"Additive level" section.

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.

Air filter and passenger compartment filter

Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.

Oil filter

Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.

12 V battery

The battery does not require any maintenance.
However, check that the terminals are clean
and correctly tightened, particularly in summer
and winter.

When carrying out work on the battery, refer
to the "12 V battery" section for details of the
precautions to be taken before disconnecting
the battery and following its reconnection.

Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often
if necessary

A clogged passenger compartment filter may
have an adverse effect on the performance
of the air conditioning system and generate
undesirable odours.

The start of saturation of the particle filter is
indicated by:

On a new vehicle, the first operations of
regeneration of the particle filter may be
accompanied by the smell of "burning",
which is perfectly normal.
Following prolonged operation of the
vehicle at very low speed or at idle,
you may, in exceptional circumstances,
notice the emission of water vapour at
the exhaust on acceleration. This does
not affect the behaviour of the vehicle
or the environment.

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Automatic gearbox

The gearbox does not require any
maintenance (no oil change).
Refer to the manufacturer's
service schedule for details of
the level checking interval for this
component.

Electric parking brake

This system does not require any
routine servicing. However, in
the event of a problem, have the
system checked by a CITROËN
dealer or a qualified workshop.

Manual parking brake

If a loss of effectiveness of this
system is noticed, the parking brake
must be checked, even between
two services.

Brake pads

Brake wear depends on the style
of driving, particularly in the case
of vehicles used in town, over short
distances. It may be necessary to

Brake disc wear

For information on checking brake
disc wear, contact a CITROËN
dealer or a qualified workshop.

For more information on the electric parking
brake, refer to the corresponding section.

Manual gearbox

The gearbox does not require any
maintenance (no oil change).
Refer to the manufacturer's service
schedule for the checking interval
for this component.

Only use products recommended by
CITROËN or products of equivalent
quality and specification.
In order to optimise the operation of
units as important as those in the
braking system, CITROËN selects and
offers very specific products.
After washing the vehicle, dampness,
or in wintry conditions, ice can form
on the brake discs and pads: braking
efficiency may be reduced. Make light
brake applications to dry and defrost
the brakes.

have the condition of the brakes checked, even
between vehicle services.
Unless there is a leak in the circuit, a drop in
the brake fluid level indicates that the brake
pads are worn.

Checking this system must be done by a
CITROËN dealer or a qualified workshop.

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AdBlue

additive and SCR system

for BlueHDi Diesel engines

To assure respect for the environment and
conformity with the new Euro 6 emissions
standard, without adversely affecting the
performance or fuel consumption of Diesel
engines, CITROËN has taken the decision to
equip its vehicles with an effective system that
associates SCR (Selective Catalytic Reduction)
with a particle filter (FAP) for the treatment of
exhaust gases.

Presentation of the SCR system

Using an additive called AdBlue

containing urea,

a catalytic converter turns up to 85% of nitrous
oxides (NOx) into nitrogen and water, which are
harmless to health and the environment.

The AdBlue

additive is held in a special

tank located under the boot at the rear of
the vehicle. It has a capacity of 17 litres: this
provides a driving range of about 12 500 miles
(20 000 km), after which an alert is triggered
warning you when the reserve remaining is
enough for just 1 500 miles (2 400 km).

During each scheduled service of your vehicle
by a CITROËN dealer or a qualified workshop,
the AdBlue

additive tank is refilled in order to

allow normal operation of the SCR system.

If the estimated mileage between two services
is greater than 12 500 miles (20 000 km), we
recommend that you go to a CITROËN dealer
or a qualified workshop to have the necessary
top-up carried out.

Once the AdBlue

tank is empty, a

system required by regulations prevents
starting of the engine.
If the SCR is faulty, the level of
emissions from your vehicle will no
longer meet the Euro 6 standard: your
vehicle becomes polluting.
In the event of a confirmed fault
with the SCR system, you must go
to a CITROËN dealer or a qualified
workshop as soon as possible: after
a running distance of 650 miles
(1 100 km), a system will be triggered
automatically to prevent engine starting.

Freezing of the AdBlue

additive

The AdBlue

additive 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.

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Topping-up the AdBlue

additive

Precautions in use

Use only AdBlue

additive that meets

the ISO 22241 standard.

The supply in a non-drip bottle simplifies
toping-up. You can obtain 1.89 litre (half a
US gallon) bottles from a CITROËN dealer or a
qualified workshop.

Keep AdBlue

out of the reach of

children, in its original bottle.
Never transfer AdBlue

to another

container: it would lose its purity.

Never dilute the additive with water.
Never pour the additive into the Diesel
fuel tank.

Never top-up from an AdBlue

dispenser reserved for heavy goods
vehicles.

Filling the AdBlue

tank is an operation

included in every routine service on your
vehicle by a CITROËN dealer or a qualified
workshop.
Nevertheless, given the capacity of the tank,
it may be necessary to top-up the additive
between services, more particularly if an alert
(warning lamps and a message) signals the
requirement.
You can got to a CITROËN dealer or a qualified
workshop.
If you envisage topping-up yourself, please
read the following warnings carefully.

The AdBlue

additive is an urea-based

solution. This liquid is non-flammable,
colourless and odourless (kept in a cool area).
In the event of contact with the skin, wash
the affected area with soap and water. In the
event of contact with the eyes, wash (irrigate)
the eyes with large amounts of water or with
an eye wash solution for at least 15 minutes.
If a burning sensation or irritation persists, get
medical attention.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high ambient
temperature, for example), the risk of release
of ammonia cannot be excluded: do not inhale
the product. Ammonia vapour has en irritant
effect on mucous membranes (eyes, nose and
throat).

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Recommendations on storage

Procedure

Switch off the ignition and remove the

key, or if your vehicle has one, press the
START/STOP button to switch off the
engine.

F Raise the boot floor for access to the

AdBlue

tank.

Secure the boot floor by attaching its cord
to the hook on the parcel shelf support.

Unclip the black plastic blanking plug using

its tab.

Insert your fingers into the aperture and

turn the blue cap a 6

of a turn anti-

clockwise.

Carefully lift off the cap, without dropping it.

Never store bottles of AdBlue

in your

vehicle.

Before topping-up, ensure that the vehicle is
parked on a flat and level surface.
In wintry conditions, ensure that the
temperature of the vehicle is above -11°C.
Otherwise the AdBlue

may be frozen and

so cannot be poured into its tank. Park your
vehicle in a warmer area for a few hours to
allow the top-up to be carried out.

AdBlue

freezes at about -11°C and

deteriorates above 25°C. It is recommended
that bottles be stored in a cool area and
protected from direct sunlight.
Under these conditions, the additive can be
kept for at least a year.
If the additive has frozen, it can be used once it
has completely thawed out.

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F Obtain a bottle of AdBlue

. After first

checking the use-by date, read carefully
the instructions on use on the label before
pouring the contents of the bottle into your
vehicle's AdBlue

tank.

After emptying the bottle, wipe away any

spillage around the tank filler using a damp
cloth.

Refit the blue cap to the tank and turn it a

of a turn clockwise, to its stop.

Refit the black plastic blanking plug,

clipping it in on the flap

Detach the cord from the parcel shelf

support and lower the boot floor.

Important: if your vehicle's AdBlue

tank is completely empty - which is
confirmed by the alert displays and the
impossibility of starting the engine - you
must add at least 3.8 litres
(so two 1.89 litre bottles).

If any additive is split or splashed, wash
immediately with cold water or wipe with
a damp cloth.
If the additive has crystallised, clean it
off using a sponge and hot water.

Important: in the event of a top-up
after a breakdown because of a lack
of additive

, you must wait around

5 minutes before switching on the
ignition, without opening the
driver's door, locking the vehicle,
introducing the key into the ignition
switch, or introducing the key of the
"Keyless Entry and Starting" system
into the passenger compartment

Switch on the ignition, then, after
10 seconds, start the engine.

Never dispose of AdBlue

additive

bottles in the household waste. Place
them in a special container provided
this purpose or take them to your dealer.

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Accessories

Conversion kits

You can obtain an "Enterprise" kit to convert a
trade vehicle to a private car and vice-versa.

"Comfort":

door deflectors, side window blinds, rear
screen blind, insulated module, coat hanger
fixed to head restraint, reading lamp, mirror for
caravan, cruise control, scented air freshener
and cartridges, parking sensors...

"Transport systems":

boot carpet, boot liner, boot net, boot spacers,
transverse roof bars, bicycle carrier, ski carrier,
roof boxes, towbars, towbar wiring harnesses...

"Styling":

gear lever knobs, aluminium foot rest, alloy
wheels, wheel embellishers, chrome mirror
shells, chrome door aperture finishers, door sill
finishers, tailgate lower chrome finisher...

* To avoid any risk of jamming the pedals:

- ensure that mats are correctly positioned

and secured,

- never fit one mat on top of another.

"Security and safety":

anti-intrusion alarm, microwave sensor, anti-tilt
sensor, stolen vehicle tracking system, child
seats and booster cushions, breathalyser, first
aid kit, fire extinguisher, warning triangle, high
visibility vest, dog guard, pet seat belt, wheel
security bolts, snow chains, non-slip covers,
front foglamp kit...

"Protection":

mats*, seat covers compatible with lateral
airbags, door sill protectors, mud flaps, door
protective rubbing strips, bumper protection
strips, protective covers for pets, vehicle
cover...

If a towbar and wiring harness are fitted
outside the CITROËN dealer network,
the installation must be done using
the vehicle's electrical pre-equipment
and in line with the manufacturer's
recommendations.

A wide range of accessories and genuine parts is available from the CITROËN dealer network.
These accessories and parts are all suitable for your vehicle and benefit from CITROËN's recommendation and warranty.

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"Multimedia":

audio systems, steering mounted audio
controls, speakers, Hi-Fi module, Bluetooth
hands-free system, portable satellite navigation
system, semi-integral support bracket for
portable navigation system, mapping update
CD, driving assistant, portable video screen,
portable video support bracket, 230 V/50 Hz
socket, 230 V/50 Hz adaptor, iPhone

compatible mobile phone charger, mobile
phone/smartphone bracket, Wi-Fi on board...

By going to a CITROËN dealer, you can also
obtain cleaning and maintenance products
(interior and exterior) - including ecological
products in the "TECHNATURE" range -,
products for topping up (screenwash...), touch-
up pens and paint aerosols for the exact colour
of your vehicle, recharges (cartridge for the
temporary puncture repair kit...), ...

Installation of radio
communication
transmitters

Before installing any after-market radio
communication transmitter, you can
contact a CITROËN dealer for the
specification of transmitters which can
be fitted (frequency, maximum power,
aerial position, specific installation
requirements), in line with the Vehicle
Electromagnetic Compatibility
Directive (2004/104/EC).

The fitting of electrical equipment or
accessories which are not recommended
by CITROËN may result in a failure of
your vehicle's electronic system and
excessive electrical consumption.
Contact a CITROËN dealer
for information on the range of
recommended equipment and
accessories.

Depending on the legislation in force in
the country, certain safety equipment
may be compulsory: high visibility
safety vests, warning triangles,
breathalyzers, spare bulbs, spare fuses,
fire extinguisher, first aid kit, mud flaps
at the rear of the vehicle.

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Running out of fuel (Diesel)

Other HDi engines

(except BlueHDi version)

On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel.
For all versions other than BlueHDi, refer to the
corresponding engine compartment view.

For more information on the Diesel
misfuel prevention device, refer to the
corresponding section.

BlueHDi engines

If the engine does not start first time,
don't keep trying but start the procedure
again from the beginning.

F Add at least five litres of Diesel fuel to the

tank.

Open the bonnet.

If necessary, unclip the styling cover for

access to the priming pump.

Squeeze and release the priming pump

repeatedly until resistance is felt (there
may be resistance at the first press).

Operate the starter to start the engine

(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).

If the engine does not start after a few

attempts, operate the priming pump again
then start the engine.

Refit the styling cover and clip it in place.

Close the bonnet.

Fill the fuel tank with at least five litres of

Diesel.

Switch on the ignition (without starting the

engine).

Wait around 6 seconds and switch off the

ignition.

Repeat the operation 10 times.

Operate the starter to run the engine.

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Citroen C4 (2016 year). Manual — part 15

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