engine CITROEN RELAY 2020 Handbook (in English)

101
Practical information
7reading and have an adverse effect on road
holding.
Fitting different tyres on the front and rear axles
can cause the ESC to mistime.
AdBlue® (BlueHDi
engines)


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 associates 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 19 litres.
It has an external filler neck, located in the fuel
filler flap under the filler neck of the fuel tank,
closed by a blue cap.
Its capacity allows a driving range of
approximately 3,700 miles (6,000 km) ( which
may vary considerably depending on the
driving style and the type of vehicle).
An alert system is triggered when the remaining
range reaches 1,500 miles (2,400 km), i.e. once
the reserve level has been reached.
Once the AdBlue® tank is empty, a
system required by legislation prevents
starting of the engine.
If the SCR system is defective, 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 travelling a distance of 250 miles (400
km), a system will be triggered automatically
to prevent engine starting.
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.
It is possible to obtain AdBlue
® from a CITROËN
dealer or a qualified workshop.
You can also visit a service station 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.

102
Practical information
If the AdBlue® tank is completely empty
– which is confirmed by the message
"Top up AdBlue: Starting impossible" – it is
essential to add at least 5 litres.
After refilling
► Refit the blue cap to the tank filler and turn it
clockwise as far as it will go (one sixth of a turn).
► Close the fuel filler flap.
Do not dispose of AdBlue® containers in
the household waste.
Place them in a container reserved for this
purpose or take them back to where you
bought them.
Never store AdBlue® containers in your
vehicle.
Precautions for use
AdBlue® is a urea-based solution. This fluid is
non-flammable, colourless and odourless (when
kept in a cool place).
In the event of contact with the skin, wash the
affected area with soap and running water. In the
event of contact with the eyes, immediately rinse
the eyes with large amounts of water or with an
eye wash solution for at least 15 minutes. Seek
medical attention if you feel a persistent burning
sensation or irritation.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high temperature, for
example), the risk of release of ammonia cannot
be excluded: do not inhale the fluid. Ammonia
vapours have an irritant effect on mucous
membranes (eyes, nose and throat).
Store AdBlue® out of the reach of
children, in its original container.
Procedure
Before starting the top-up procedure, 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 the vehicle in a warmer area
for a few hours to allow the top-up to be carried
out.
Never put the AdBlue® into the Diesel
fuel tank.
If any AdBlue® is splashed, or if there are
any spillages on the bodywork, rinse
immediately with cold water or wipe with a
damp cloth.
If the fluid has crystallised, clean it off using a
sponge and hot water.
Important: in the event of a top-up after
an AdBlue breakdown, you must wait
about 5 minutes before switching on the
ignition, without opening the driver's door,
unlocking the vehicle or bringing the
electronic key into the passenger
compartment.
Switch on the ignition, then wait for 10
seconds before starting the engine.
► Switch off the ignition and remove the key
from the switch to switch off the engine.


► Turn the blue cap of the AdBlue® tank a 6th of
a turn anti-clockwise and remove it.
Filling up
► With a container of AdBlue®: after checking
the expiry date, read the instructions on the
label carefully before pouring the contents of the
container into the vehicle's AdBlue tank.
► With an AdBlue
® pump: introduce the nozzle
and fill the tank until the nozzle automatically
cuts out.
In order not to overfill the AdBlue® tank:
– Add between 10 and 13 litres using
AdBlue
® containers.
– Stop after the nozzle’s first automatic cut-
out, if you are refilling at a service station.
The system only registers AdBlue
® top-ups of
5 litres or more.

104
In the event of a breakdown
Temporary puncture repair kit
This temporary puncture repair kit is stored in a
bag, placed in one of the front doors.


It includes:
– a cartridge A, containing the sealant, equipped
with: • a filling pipe B,
• a sticker C indicating "50 mph (80 km/h)
max.", which the driver must apply within
their field of vision (on the dashboard) after
having repaired the tyre,
– a quick user guide for the repair kit,
– a compressor D equipped with a pressure
gauge and connections,
– adapters, for the inflation of various
components.
Repairing a tyre
► Apply the parking brake.


► Unscrew the cap of the tyre valve, remove
filling hose B and screw ring E onto the valve.
► Make sure compressor switch F is in
position 0 (off).
► Start the engine.
► Insert plug G into the nearest socket on the
vehicle.
► Operate the compressor by setting switch F
to position I (on).
► Inflate the tyre to a pressure of 5 bar.
To obtain a more accurate reading, it is
recommended to check the pressure value on
pressure gauge H, with the compressor off.
► If a pressure of at least 3 bar is not reached
within 5 minutes, disconnect the compressor
from the valve and the power socket, then move
the vehicle forwards by approximately 10 metres,
to disperse the sealant inside the tyre.
► Then repeat the inflation procedure:
• if a pressure of at least 3 bar is not reached
within 10 minutes, stop your vehicle: the tyre
is too damaged and could not be repaired.
Contact a CITROËN dealer or a qualified
workshop.
• if the tyre pressure has reached 5 bar,
restart immediately.
► After driving for approximately 10 minutes,
stop and check the tyre pressure again.
► Restore the correct pressure in accordance
with the label on the driver's side pillar and
contact a CITROËN dealer or a qualified
workshop as soon as possible.
This puncture repair kit and the replacement cartridges are available
from a CITROËN dealer.
Checking and restoring
pressure
The compressor can only be used to check and
restore pressure.


► Disconnect hose I and directly connect it
to the tyre valve; the cartridge will thereby be
connected to the compressor and the sealant will
not be injected.
If the tyre needs to be deflated, connect hose
I to the tyre valve and press the yellow button
located in the centre of the compressor switch.
Replacing the cartridge

To replace the sealant cartridge, proceed as
follows:
► Disconnect the hose I.
► Turn the cartridge to be replaced anti-
clockwise and lift it.
► Insert the new cartridge and turn it clockwise,
► Reconnect the hose I and connect pipe B to
its location.
The cartridge contains ethylene glycol, which is harmful if swallowed and irritates
the eyes.
It must be kept out of the reach of children.

11 6
In the event of a breakdown
Changing a fuse

The three fuseboxes are located on the
dashboard on the left-hand side, in the pillar
on the right-hand side and in the engine
compartment.
The designations provided are only for the fuses
that can be replaced by the user. For any other
work, visit a CITROËN dealer or a qualified
workshop.
Professional repairers: for full information
on the fuses and relays, consult the
wiring information and diagrams available
from a CITROËN dealer.
Removing and fitting a fuse


Good
Failed
Before changing a fuse, the cause of the fault
must be found and rectified. The numbers of the
fuses are indicated on the fuse box.
Always replace a faulty fuse with a fuse of
the same rating.
CITROËN accepts no responsibility for
the cost incurred in repairing your 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.
Left-hand side dashboard
fuses
► Remove the screws and tilt the casing to
access the fuses.


Fuses A (amperes)Allocation
12 7.5Right-hand dipped beam headlamp
13 7.5Left-hand dipped beam headlamp

11 8
In the event of a breakdown
Right-hand side pillar fuses
► Unclip the cover.
When you have finished, close the cover very
carefully.


Fuses A (amperes)Allocation
55 15Heated seats
56 15Rear passenger 12 V socket
57 10Under-seat additional heating
58 15Left-hand rear screen defrosting
59 15Right-hand rear screen defrosting
63 10Rear passenger additional heating control
65 30Rear passenger additional heating ventilator
Engine compartment fuses
► Remove the nuts and tilt the casing to access
the fuses.
When you have finished, close the cover very
carefully.

11 9
In the event of a breakdown
8Engine compartment fuses
► Remove the nuts and tilt the casing to access
the fuses.
When you have finished, close the cover very
carefully.


Fuses A (amperes)Allocation
1 40ABS pump supply
2 50Diesel pre-heating unit
3 30Ignition switch - Starter
4 40Diesel heater
5 20/50Passenger compartment ventilation with programmable additional heating (+ battery)
6 40/60Maximum speed passenger compartment cooling fan unit (+ battery)
7 40/50/60Minimum speed passenger compartment cooling fan unit (+ battery)
8 40Passenger compartment cooling fan unit (+ key)
9 15Rear 12 V socket (+ battery)
10 15Horn

120
In the event of a breakdown
FusesA (amperes)Allocation
14 15Front 12 V socket (+ battery)
15 15Cigarette lighter (+ battery)
19 7.5Air conditioning compressor
20 30Screenwash/headlamp wash pump
21 15Fuel pump supply
23 30ABS solenoid valves
24 7.5Auxiliary control panel - Door mirror control and folding (+ key)
30 15Door mirror defrosting
12 V battery
Procedure for starting the engine using another
battery or charging a discharged battery.
Lead-acid starter batteries
Batteries contain harmful substances
such as sulphuric acid and lead.
They must be disposed of in accordance
with regulations and must not, in any
circumstances, be discarded with household
waste.
Take used remote control batteries and
vehicle batteries to a special 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, so as to
avoid the risk of explosion or fire.
Wash your hands afterwards.
Accessing the battery
The battery is located under the left-hand front
floor.


► Unscrew the 6 access flap retaining screws.
► Lift or completely remove the access flap.

121
In the event of a breakdown
8

► Tilt lever 1 downwards to release the
terminals.
► Remove terminals 2 from the negative (-)
terminal.
Wait approximately 6 minutes after
switching off the ignition before
disconnecting the battery.
Do not disconnect the terminals while the
engine is running.
Do not charge a battery without disconnecting
the terminals first.
Close the windows and the doors before
disconnecting the battery.
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.
It is recommended to disconnect the (-)
terminal of the battery if the vehicle is to
be left unused for more than one month.
The description of the battery charging
procedure is only indicative.
After prolonged battery disconnection, it may be
necessary to reinitialise the following functions:
– the display parameters (date, time, language,
distance and temperature units),
– the stations of the audio system,
– the central locking.
Some settings are cancelled and must be
entered once again; contact a CITROËN dealer.
If the vehicle is equipped with a tachograph or
an alarm, it is recommended that the (-) terminal
of the battery (located under the floor on the
left-hand side, in the cab) be disconnected if the
vehicle is not going to be used for more than 5
days.
Starting using another
battery
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 the electrical consumers on both
vehicles (audio system, wipers, lighting, etc.).
Make sure that the jump leads are not close
to the moving parts of the engine (fan, belt,
etc.).
Do not disconnect the (+) terminal while the
engine is running.


A. Positive metallic terminal of your vehicle
B. Backup battery
C. Earth of your vehicle
The positive metallic terminal A is accessible
through a flap located on the side of the fuse
box.
Connect only to the terminals indicated
and illustrated above. In case of
non-compliance, risk of short circuit!

122
In the event of a breakdown
► Connect the red cable to metallic terminal A,
then to the (+) terminal of backup battery B.
► Connect one end of the green or black cable
to the negative (-) terminal of backup battery B.
► Connect the other end of the green or black
cable to earth point C of your vehicle.
► Operate the starter, let the engine run.
► Wait for the engine to return to idle and
disconnect the cables.
Charging the battery using a
battery charger
► Access the battery, located in the left-hand
front floor.
► Disconnect the battery.
► Follow the instructions for use provided by
the manufacturer of the charger.
► Reconnect starting with the (-) terminal.
► Check the cleanliness of the terminals. If they
are covered with sulphate (whitish or greenish
deposit), remove and clean them.
The charging operation must be carried out in a well-ventilated area and away
from naked flames and any sources of sparks
so as to avoid the risk of explosion or fire.
Do not try to recharge a frozen battery: it
must first be thawed to avoid the risk of
explosion. If it has frozen, before charging it,
have the battery checked by a specialist who
will check that the interior components have
not been damaged and that the container is
not cracked, which would involve a risk of
leakage of toxic and corrosive acid.
Perform a slow charge at low amperage for
about 24 hours maximum to avoid damaging
the battery.
The presence of this label, in particular with the Stop & Start system, indicates
the use of a 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.
After refitting the battery at a CITROËN dealer or a qualified workshop, the Stop
& Start system will only be active after a
continuous period of immobilisation of the
vehicle, a period which depends on the
climatic conditions and the state of charge of
the battery (up to about 8 hours).
Towing
General recommendations
Observe the legislation in force in the
country where you are driving.
Ensure that the weight of the towing vehicle is
higher than that of 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 towing
arm; rope 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 towing service must be
called if:
– 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 your vehicle
The removable towing eye is located in the tool
box under the front passenger seat.
► Unclip the cover using a flat tool.


► Screw the removable towing eye in fully.
► Attach the approved towbar to the removable
towing eye.
► Place the gear lever in neutral.

123
In the event of a breakdown
8Towing constraints
Type of vehicle
(engine / gearbox)gearbox Font wheels on the
ground Rear wheels on the
ground Flatbed
4 wheels on the ground
with towbar
Internal combustion /
Manual


Towing your vehicle
The removable towing eye is located in the tool
box under the front passenger seat.
► Unclip the cover using a flat tool.


► Screw the removable towing eye in fully.
► Attach the approved towbar to the removable
towing eye.
► Place the gear lever in neutral.
Failure to adhere to this instruction may
lead to damage to braking system
components and the lack of braking
assistance on restarting the engine.
Towing another vehicle

The fixed towing eye is located under the
bumper, on the right-hand side.
► Attach the approved towbar to the rigid eye.