2019 CITROEN RELAY engine

129
Checks
These operations allow your vehicle to be
kept in good working order. Ask for advice
from a CITROËN dealer or refer to the
manufacturer's service schedule included
in the handbook pack.
Battery
The battery does not require any
maintenance.
However, check regularly that the
terminals are correctly tightened
(models without quick release
terminals) and that the connections
are clean. Models 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.
Filter, air
At the start of winter, have your battery checked
by a CITROËN dealer or a qualified workshop.
For best quality cleaning and to prevent
freezing, this fluid must not be topped up or
replaced with plain water.
In wintry conditions, the use of an alcohol or
methanol based fluid is recommended.
Refer to the manufacturer's
ser vice schedule for details of
the replacement inter val for this
component.
Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle (e.g.
city driving), replace it twice as often if
necessary .
Filter, passenger
compartment
Refer to the manufacturer's
ser vice schedule for details of
the replacement inter val for this
component. Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle (e.g.
city driving), replace it twice as often if
necessary
.
Oil filter
Change the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
ser vice schedule for details of
the replacement inter val for this
component.
Particle filter (Diesel)
A clogged passenger compartment
filter may have an adverse effect on
the per formance of the air conditioning
system and generate undesirable odours.
As an addition to the catalytic converter,
this filter makes an active contribution to the
preser vation of air quality by retaining unburnt
pollutant particles. Black exhaust fumes are
also eliminated.
7
Practical information

130
Operation
This filter, fitted in the exhaust system,
accumulates particles of soot. The engine
management unit controls the automatic
periodic elimination of the soot particles
(regeneration).
The regeneration procedure is triggered
depending on the amount of particles
accumulated and the vehicle use conditions.
During this phase, you may notice some
unusual phenomena – increased idling speed,
cooling fan running, increase in smoke and
higher exhaust gas temperature – which does
not affect the operation of the vehicle or the
environment.After prolonged idling or driving at very
low speeds, you may occasionally notice
water vapour being emitted from the
exhaust when accelerating. This is of no
consequence to the running of the vehicle
or to the environment. Because of the higher exhaust gas
temperature resulting from the normal
operation of the particle filter, it is
recommended that you do not park the
vehicle over inflammable materials (grass,
dry leaves, pine needles, etc.) so as to
avoid any risk of fire.
Saturation/Regeneration
If there is risk of blockage of the
filter, this warning lamp comes on in
the instrument panel.
This alert tells you that the particle filter is
starting to saturate (in conditions of urban
driving of exceptionally long duration: low
speeds, traffic jams, etc.).
To regenerate the filter, it is advised to drive
as soon as possible, when traffic conditions
and the law permit, at a
speed of at least
37

mph (60 km/h), with an engine speed above
2,000

rpm for about fifteen minutes (until the
warning lamp and/or the message disappears).
If possible, avoid switching off the engine
before the end of the filter regeneration;
repeated interruptions could cause premature
deterioration of the engine oil. It is not
recommended to end regeneration of the filter
with the vehicle stationary.
Malfunction
If this alert persists, do not ignore the warning;
it indicates that a fault has occurred in the
exhaust system/particle filter assembly.
Have the whole system checked by a
CITROËN
dealer or a
qualified workshop.
Manual gearbox
The gearbox does not require any
maintenance (no oil change).
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
have the condition of the brakes
checked, even between vehicle
services.
If this warning lamp comes on, have
the brake pad wear checked by
a
CITROËN dealer or a qualified
workshop.
Practical information

131
Brake disc wear
For information on checking brake
disc wear, contact a CITROËN or
a


qualified workshop.
Parking brake
If excessive travel or a loss of
e ffectiveness of this system is
noticed, the parking brake must
be checked, even between two
services.
This system must be checked by a
CITROËN
dealer or a
qualified workshop.
Diesel fuel filter
The Diesel fuel filter is located under the
bonnet, close to the brake fluid reser voir. If this warning lamp comes on, the
filter must be purged to remove
water.
You can also purge the fuel filter
regularly, every time the engine oil
is changed.
Purging water from the filterThe HDi engines use advanced technology.
All work must be done by personnel that
have had special training, which can be
ensured by going to 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.
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.
F

C

onnect a

transparent pipe to the head of
the purge screw 1 .
F

P

lace the other end of the transparent pipe
in a

container.
F

L

oosen the purge screw 2 .
F

S

witch the ignition on.
F

W

ait until the supply pump stops running.
F

S

witch the ignition off.
F

T

ighten the purge screw 2 .
F

R

emove and then empty the transparent
pipe and the container.
F

S

tart the engine.
F

C

heck that there are no leaks.
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Practical information

132
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.
Topping up with AdBlue®
Before topping up, please read the
following warnings carefully.
Precautions for use
AdBlue® is a urea-based solution. This fluid
is
non-flammable, colourless and odourless
(stored 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. 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 exterior temperature,
for example), the risk of ammonia being
released cannot be excluded: do not inhale
the vapours. Ammonia has an irritant effect on
mucous membranes (eyes, nose and throat).
AdBlue® (BlueHDi
engines)
To respect the environment and ensure
compliance with the Euro 6
standard, without
adversely affecting the per formance or fuel
consumption of 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® containing urea, a
catalytic converter turns up to 85% of nitrogen
oxides (NOx) into nitrogen and water, which are
harmless to health and the environment.
The AdBlue
® is contained in a special tank with
a
capacity of approximately 14 litres.
It has an exterior filler located behind the fuel
filler flap below the fuel filler cap and closed
with a

blue filler cap .
An alarm system is triggered once the
remaining range is 1,500 (2,400 km), in other
words once the reser ve level is reached. Once the AdBlue
® tank is empty, a
regulatory device prevents the engine
from being restarted.
If the SCR system is faulty, the level of
emissions from your vehicle no longer
meet the Euro 6

regulations: 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: having travelled 250 miles
(400 km), a device will be triggered
automatically to prevent the engine from
starting.
Practical information

133
Keep AdBlue® out of the reach of children,
in its original container or bottle.
Never transfer AdBlue
® to another
container: it would lose its purity.
Never dilute AdBlue
® with water.
Never pour AdBlue® into the Diesel fuel
tank.
Bottles or containers are available from
a

CITROËN dealer or a

qualified workshop.
Recommendations on storage
AdBlue® freezes at about -11°C and
deteriorates above 25°C. It should be stored in
a

cool place 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 bottles or containers of
AdBlue
® in your vehicle.
Procedure
In cold weather, before per forming the top up
ensure that the temperature of the vehicle is
above -11°C. Other wise 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.
Use only AdBlue
® fluid that meets the
ISO

22241

standard.
F

B
efore topping up, ensure that the vehicle is
parked on a
flat and level sur face.
F

S
witch off the ignition to stop the engine
and remove the key from the switch. F

W
ith the vehicle unlocked, open the fuel
filler flap; the blue filler cap for the AdBlue
®
tank is located below the black fuel filler
cap.
F

T
urn the blue cap 1/6 of a turn anti-
clockwise.
F

R
emove the blue cap downwards.
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Practical information

134
Refilling
F Insert the AdBlue® pump nozzle and refill
the tank until the nozzle stops automatically. Important:
-

N
ever pour AdBlue
® into the Diesel fuel
tank.
-

T

o avoid over flowing the AdBlue
® tank,
it is recommended:
•

T

o do a

top up between 10

and
13

litres using the AdBlue
® container
or bottle.
Or
•

I

f filling in a

ser vice station, to stop
after the first automatic shut-off of
the nozzle.
-
I

f your vehicle's AdBlue
® tank is
completely empty – which is confirmed
by the alert messages and the
impossibility of starting the engine –
you must add at least 4

litres.
If any AdBlue
® is splashed, or if there are
any spillages on the side of the body, 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.
F

O

btain an


AdBlue
® container or bottle. After
first checking the use-by date, read the
instructions on the label carefully before
pouring the contents of the container or
bottle into your vehicle's AdBlue tank.
Or F

R
efit the blue cap to the tank filler and turn it
1/6 of a turn clockwise, to its stop.
F
C
lose the fuel filler flap.
Important: In the event of a top-up after
running out of AdBlue , you must wait
about five minutes before switching on the
ignition, without opening the driver's
door, unlocking the vehicle or inser ting
the key in the ignition switch .
Switch on the ignition, then wait for
10 seconds before starting the engine.
Practical information

135
Temporary puncture
repair kit
This temporary puncture repair kit is kept
in a bag and stowed in one of the front door
pockets.
It consists of:
-

a c
artridge A , containing the sealant fluid,
equipped with:
•

a f
illing hose B ,
•

a
n adhesive sticker C showing "max.
50
mph (80 km/h)" that the driver
must apply in a
visible place (on the
dashboard) after having repaired the tyre,
-

a q
uick guide to use of the repair kit,
-

a c
ompressor D equipped with a pressure
gauge and unions,
-

a
daptors, for the inflation of various items.
Repairing a tyre
F Apply the parking brake.
F
U
nscrew the tyre valve cap, remove the
filling hose B and screw the ring E onto the
valve.
F

S
tart the engine.
F

C
heck that the switch F on the compressor
is in position 0 (of f ). F

I
nsert the connector G into the nearest
power socket on the vehicle.
F

S
witch on the compressor by placing the
switch F in position I (o n),
F

I
nflate the tyre to a pressure of 5 bar.
To obtain a
more accurate reading, you are
advised to check the pressure value on the
pressure gauge H , with the compressor off.
8
In the event of a breakdown

149
Third brake lamp
Ty p e A, W5W – 5W (x 4)
F
R
emove the two lamp fixing screws.
F

R
emove the lamp by pulling it towards you.
F

R
emove the bulb holder by squeezing the
two tongues inwards.
F

R
emove the failed bulb by pulling it out.
F

C
hange the bulb.
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 via the
CITROËN dealer network.
Removing and fitting a fuse
CITROËN accepts no responsibility for the
cost incurred in repairing your vehicle or
for rectifying malfunctions resulting from
the installation of accessories not supplied
by and not recommended by CITROËN
and not installed in accordance with its
specifications, in particular when the
combined power consumption of all of the
additional equipment connected exceeds
10


milliamperes.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 fusebox.
Always replace a faulty fuse with a fuse of
the same rating.
8
In the event of a breakdown