engine CITROEN C-ELYSÉE 2021 Service Manual

77
Practical information
7Diesel engine

1.Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
10. Priming pump*
Diesel fuel system
This system is under very high pressure.
All work must be carried out only by a
CITROËN dealer or a qualified workshop
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
* Depending on engine.
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
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).
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a CITROËN dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
â–º

Grasp the dipstick by its coloured grip and
pull it out completely

.
â–º

Wipe the end of the dipstick using a clean,
lint-free cloth.


â–º Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil

78
Practical information
level: the correct level is between marks A (max)
and B (min).
Do not start the engine if the level is:
–

above mark
A: contact a CITROËN dealer or a
qualified workshop.
–

below mark

B
: top up the engine oil
immediately.
Oil grade
Before topping up or changing the
engine oil, check that the oil is suitable
for your engine and complies with the
recommendations in the service schedule
supplied with the vehicle (or available from
your CITROËN dealer or qualified workshop).
Use of non-recommended oil may invalidate
your warranty in the event of engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding engine compartment
illustration.
â–º

Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
â–º


W
ait a few minutes before checking the level
again using the dipstick.
â–º

T
op up the level if necessary.
â–º

After checking the level, carefully screw the
oil filler cap back on

and replace the dipstick in
its tube.
Brake fluid
The level of this fluid should be close to
the "MAX" mark. If not, check the brake
pads for wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Clean the cap before removing it to refill.
Use only DOT4 brake fluid from a sealed
container.
Engine coolant
It is normal to top up this fluid between
two services.
The check and top-up must only be done with
the engine cold.
A level of coolant that is too low risks causing
major damage to the engine; the coolant level
must be close to the "MAX" mark without ever
going above it.
If the level is close to or below the " MIN" mark, it
is essential to top it up.
When the engine is hot, the temperature of the
coolant is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.
Once the pressure has dropped, remove the cap
and top up to the required level.
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a pre-mixed
product.
In winter (temperatures below zero), a fluid
containing an anti-freeze agent which is
appropriate for the temperature conditions
must be used in order to protect the system's
components (pump, tank, ducts, jets).
Filling with pure water is prohibited in all
circumstances (risk of freezing,
limescale, etc.).
Diesel fuel additive (Diesel
with particle filter)
On reaching the minimum level in the
particle filter additive tank, this warning
lamp comes on fixed, accompanied by an
audible signal and a warning message.
Topping up
The topping up of this additive must be carried
out quickly.
Visit a CITROËN dealer or a qualified workshop.

79
Practical information
7AdBlue® (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 with
special technology and specifications.
Its replacement should be carried out only by
a CITROËN dealer or a qualified workshop.
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 .
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.
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 traffic conditions allow, regenerate
the filter by driving at a speed of at least 37
mph
(60

km/h), with an engine speed above 2,500
rpm, for about 15 minutes (until the warning lamp
goes out).
If it is not possible to reach 37
mph (60 km/h),
leave the engine running at idle for about 15
minutes, then drive with an engine speed above
2,500 rpm for 15 minutes.
Do not switch off the engine until the filter
is fully regenerated; repeated intervals
can degrade the engine oil prematurely.
Regenerating the filter while the vehicle is
stationary is not recommended.
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

81
Practical information
7With manual or automatic
gearbox and manual parking
brake
/
To release them
â–º With the vehicle stationary and engine
running, depress the brake pedal.
â–º

With a manual gearbox, place the gear lever
into neutral.
â–º


With an automatic gearbox, place the gear
selector to mode

N.
â–º

Release the parking brake.
â–º


Release the brake pedal, then switch off the
engine.
Reverting to normal operation
â–º Apply the parking brake.
â–º With an automatic gearbox, place the gear
selector to mode
P.
Advice on care and maintenance
General recommendations
Observe the following recommendations to avoid
damaging the vehicle.
Exterior
Never use a high-pressure jet wash in
the engine compartment - risk of
damaging the electrical components!
Do not wash the vehicle in bright sunshine or
extremely cold conditions.
When washing the vehicle in an
automatic roller-brush car wash, be sure
to lock the doors and, depending on version,
move the electronic key away.
When using a pressure washer, keep the jet
nozzle at a minimum distance of 30 cm from
the vehicle (particularly when cleaning areas
containing chipped paint, sensors or seals).
Promptly clean up any stains containing
chemicals liable to damage the vehicle's
paintwork (including tree resin, bird
droppings, insect secretions, pollen and tar).
Depending on the environment, clean the
vehicle frequently to remove salty deposits
(in coastal areas), soot (in industrial areas)
and mud/salts (in wet or cold areas). These
substances can be highly corrosive.
Contact a CITROËN dealer or a qualified
workshop for advice on removing stubborn
stains requiring special products (such as tar
or insect removers).
Preferably, have paint touch-ups performed
by a CITROËN dealer or a qualified
workshop.
Interior
When washing the vehicle, never use a
water hose or high-pressure jet to clean
the interior.
Liquids carried in cups or other open
containers can spill, presenting a risk of
damage to the instruments and controls and
the controls located on the centre console. Be
vigilant!
To clean instrument panels, touch screens
or other displays, wipe gently with a soft,
dry cloth. Do not use products (e.g. alcohol,
disinfectant) or soapy water directly on these
surfaces - risk of damage!
Bodywork
High-gloss paint
Do not use abrasive products, solvents,
petrol or oil to clean the bodywork.
Never use an abrasive sponge to clean
stubborn stains - risk of scratching the
paintwork!
Do not apply polish in strong sunshine, or to
plastic or rubber parts.
Use a soft cloth and soapy water or a pH
neutral product.
Gently wipe the bodywork with a clean
microfibre cloth.
Apply polish with the vehicle clean and dry.

83
In the event of a breakdown
8Warning triangle
This reflective and dismantable 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.
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.
â–º

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.
For non-BlueHDi versions, the fuel system
components are located in the engine
compartment; this may be under a removable
cover.
For more information on the Engine
compartment, in particular the location
of these components under the bonnet, refer
to the corresponding section.
1.6 HDi engines
â–º Open the bonnet and then, if necessary ,
unclip the cover to access the priming pump.
â–º Operate the priming pump repeatedly
until resistance is felt (resistance may be
felt at the first press).
â–º

Operate the starter motor to start the engine
(if the engine does not start at the first attempt,
wait around 15 seconds before trying again). â–º


If the engine does not start after a few
attempts, operate the priming pump again, then
the starter motor
.
â–º
Put the cover back in place and clip it in, then
close the bonnet.
1.5 BlueHDi engines
â–º Switch on the ignition (without starting the
engine).
â–º

W
ait around 1 minute and switch off the
ignition.
â–º

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.
Access to the tools
The tool kit is stored in the boot, under the floor.

85
In the event of a breakdown
8Depending on engine, the spare wheel
may be a standard steel or 'space-saver'
wheel (BlueHDi 100).
Removing the spare wheel

â–º Unclip the tool storage box (standard spare
wheel).
â–º

Slacken the central nut.
â–º


Remove the fastening device (nut and bolt).
â–º


Lift the spare wheel towards you from the
rear

.
â–º

T
ake the wheel out of the boot.
Putting the spare wheel back in place
The punctured wheel cannot be put under the boot floor.


â–º Put the spare wheel back in place in its
housing.
â–º

Slacken the nut on the bolt by a few turns.
â–º


Position the fastening device (nut and bolt) in
the middle of the wheel.
â–º


T
ighten the central nut sufficiently to retain
the wheel correctly.
â–º

Put the tool box back in place in the middle of
the wheel and clip it in place.
Removing a wheel
Parking the vehicle
Immobilise the vehicle where it does
not obstruct traffic: the ground must be level,
stable and non-slippery.
With a manual gearbox, engage first gear
to lock the wheels, apply the parking brake,
unless it is set to automatic mode, and switch
off the ignition.
With an automatic gearbox, select mode

P

to lock the wheels, apply the parking brake,
unless it is set to automatic mode, and switch
off the ignition.
Check that the parking brake indicator lamps
on the instrument panel are on fixed.
The occupants must get out of the vehicle
and wait where they are safe.
If necessary, place a chock under the wheel
diagonally opposite the wheel to be changed.
Never go underneath a vehicle raised using a
jack; use an axle stand.
Wheel with wheel trim
When removing the wheel , first remove
the wheel trim by pulling at the valve aperture
using the wheelbrace.
When refitting the wheel , refit the wheel
trim, starting by placing its aperture in line
with the valve and then pushing it into place
all round its edge with the palm of your hand.

92
In the event of a breakdown
Installing electrical accessories
The vehicle's electrical system is
designed to operate with standard or optional
equipment.
Before fitting other electrical equipment
or accessories to your vehicle, contact a
CITROËN dealer or a qualified workshop.
CITROËN accepts no responsibility for
the cost incurred in repairing the vehicle
or for rectifying malfunctions resulting from
the installation of accessories not supplied or
not recommended by CITROËN and not
installed in accordance with its
recommendations, in particular when the
combined power consumption of all of the
additional equipment connected exceeds 10
milliamperes.
12 V battery
Lead-acid starter batteries
These batteries contain harmful substances (sulphuric acid and lead).
They must be disposed of in accordance
with regulations and must never under any
circumstances be discarded with household
waste.
Dispose of used batteries at a designated
collection point.
Protect your eyes and face before
handling the battery.
All operations on the battery must be carried
out in a well ventilated area and away from
naked flames and sources of sparks, to avoid
any risk of explosion or fire.
Wash your hands afterwards.
Electronic control units/LED
technology headlamps
Never connect the negative jump lead to the
metal part of the electronic control units or at
the back of the headlamps.
Risk of destroying the electronic control units
and/or headlamps!
Connect to the remote earth point provided
for this purpose.
Frozen battery
Never try to charge a frozen battery - risk
of explosion!
If the battery has frozen, have it checked by a
CITROËN dealer or by a qualified workshop,
who will verify that the internal components
have not been damaged and that the case
has not cracked, which could lead to a risk of
leakage of toxic and corrosive acid.
Automatic gearbox
Never try to start the engine by pushing
the vehicle.
Symbols
No sparks or naked flames, no smoking.
Always protect your eyes. Explosive gases can cause blindness and injury.
Keep the vehicle's battery out of the reach
of children.
The vehicle's battery contains sulphuric acid which can make you go blind or
cause severe burns.
For more information, refer to the
handbook.
Explosive gases can be present close to
the battery.
Procedure for starting the engine using another
battery or for charging a discharged battery.
Accessing the battery
The battery is located under the bonnet.

For access to the (+) terminal:

93
In the event of a breakdown
8â–º Release the bonnet by pulling the internal
release lever , then the external safety catch.
â–º

Raise the bonnet.
(+)

Positive terminal with a quick-release
terminal.
(-) Negative terminal.
As the battery's negative terminal is not
accessible, a remote earth point is located on
the engine.
Starting using another battery
If the vehicle's battery is flat, the engine can be
started using a backup battery (either external or
from another vehicle) and jump leads or using a
battery booster.
Never start the engine by connecting a
battery charger.
Never use a 24
V or higher battery booster.
Check beforehand that the backup battery
has a nominal voltage of 12
V and a capacity
at least equal to that of the discharged
battery.
The two vehicles must not be in contact with
each other.
Switch off all electricity-consuming equipment
on both vehicles (audio system, wipers,
lighting, etc.).
Make sure that the jump leads are well away
from the engine’s moving parts (fan, belt,
etc.).
Do not disconnect the (+) terminal while the
engine is running.


â–º Lift the plastic cover on the (+) terminal, if the
vehicle has one.
â–º

Connect the red cable to the (+) terminal of
flat battery

A (at the metal elbow), then to the
(+) terminal of the backup battery
B or of the
booster.
â–º

Connect one end of the green or black cable
to the (-) terminal of the backup battery

B or of
the booster (or to an earth point on the assisting
vehicle).
â–º

Connect the other end of the green or black
cable to the earth point


C
.
â–º

Start the engine on the assisting vehicle and
leave it running for a few minutes.
â–º


Operate the starter on the broken down
vehicle and let the engine run.
If the engine does not start immediately

, switch
off the ignition and wait a few moments before
trying again.
â–º

W
ait for it to return to idle.
â–º

Disconnect the jump leads in reverse order.
â–º Refit the plastic cover to the (+) terminal, if
the vehicle has one.
â–º

Allow the engine to run for at least
30

minutes, with the vehicle stationary, so that
the battery reaches an adequate state of charge.
Driving immediately without having
reached a sufficient level of charge may
affect some of the vehicle's functions (e.g.
Stop & Start).
Charging the battery using a battery
charger
For optimum service life of the battery, it is
essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the battery:
–

When using the vehicle mainly for short
journeys.
–


If the vehicle is to be taken off the road for
several weeks.
Contact a CITROËN dealer or a qualified
workshop.
To charge the vehicle's battery yourself, use only a charger compatible with
lead-acid batteries with a nominal voltage of
12

V.
Follow the instructions provided by the
manufacturer of the charger.
Never reverse polarities.

94
In the event of a breakdown
It is not necessary to disconnect the
battery.
â–º

Switch the ignition off.
â–º


Switch off all electrical consumers (audio
system, lighting, wipers, etc.).


â–º Switch off charger B before connecting
the cables to the battery, so as to avoid any
dangerous sparks.
â–º

Ensure that the charger cables are in good
condition.
â–º


Lift the plastic cover on the (+) terminal, if the
vehicle has one.
â–º


Connect the cables of charger B

as follows:
•

the positive (+) red cable to the (+) terminal
of battery

A.
•

the negative (-) black cable to earth point C


on the vehicle.
â–º

At the end of the charging operation, switch
off charger B

before disconnecting the cables
from battery A.
If this label is present, use only a 12 V
charger to avoid causing irreversible
damage to the electrical components.
24V
12V
+
Disconnecting/reconnecting the
battery
In order to maintain an adequate state of
charge for starting the engine, we recommend
disconnecting the battery if the vehicle is to be
unused for an extended period.
Before disconnecting the battery:
â–º

Close all openings (doors, tailgate, windows).
â–º


Switch off all electricity-consuming devices
(audio system, wipers, lamps, etc.).
â–º


Switch off the ignition and wait for 4
minutes.
After accessing the battery, it is only necessary
to disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal


â–º Depending on equipment, lift the plastic cover
on the (+) terminal.
â–º

Raise lever

A
fully to release clamp
B
.
â–º

Remove clamp

B
by lifting it off.
Reconnecting the (+) terminal

â–º Raise lever A fully.
â–º Refit open clamp B on the (+) terminal.

95
In the event of a breakdown
8â–º Push clamp B fully down.
â–º Lower lever A to lock clamp B.
â–º

Depending on equipment, lower the plastic
cover on the

(+) terminal.
Do not force the lever when pressing on
it, as if the clamp is not positioned
correctly, locking will then not be possible.
Start the procedure again.
The Stop & Start system may not be operational during the trip following the
first engine start.
In this case, the system will only be available
again after a continuous period with the
vehicle immobilised, the duration of which
depends on the exterior temperature and the
state of charge of the battery (up to about 8
hours).
Following reconnection
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, to enable the electronic systems to
initialise.
If minor problems nevertheless persist following
this operation, contact a CITROËN dealer or a
qualified workshop.
Referring to the relevant section, reinitialise
certain equipment:
–

Remote control key
.
–

Electric windows.
–


Date and time.
–


Preset radio stations.
Towing the vehicle
General recommendations
Observe the legislation in force in the
country where you are driving.
Check that the towing vehicle is heavier than
the towed vehicle.
The driver must remain at the wheel of the
towed vehicle and must have a valid driving
licence.
When towing a vehicle with all four wheels on
the ground, always use an approved towbar;
ropes and straps are prohibited.
The towing vehicle must move off gently.
When the vehicle is towed with its engine
off, there is no longer braking and steering
assistance.
A professional recovery service must
be called in the following cases:
–

broken down on a motorway or main road;
–


not possible to put the gearbox into neutral,
unlock the steering, or release the parking
brake;
–


not possible to tow a vehicle with an
automatic gearbox, with the engine running;
–


towing with only two wheels on the ground;
–


four-wheel drive vehicle;
–


no approved towbar available.
Towing constraints
Type of vehicle
(engine/gearbox) Front wheels on the
ground Rear wheels on the
ground Flatbed
4 wheels on the ground
with towbar
Internal combustion/Manual