2017 CITROEN RELAY Handbook (in English)

143
topping-up
The level must be between the MI n and
MA
x marks on the expansion bottle.
As close as possible to the MA
x mark is
recommended.
If more than 1 litre of fluid is required to top-
up the level, have the system checked by a
CITROËN dealer or a qualified workshop.
Power steering fluid level
The vehicle must be parked on level ground
with the engine cold. Unscrew the cap
integrated with the gauge and check the
level which must be between the MI
n and
MA
x marks.
For access to the reservoir filler cap, remove
the protective cover by turning its three
fixing screws a quarter turn, then remove the
second cover fitted to the cap.
Windscreen wash and headlamp
wash level
Capacity of the reservoir: approximately
5.5 litres.
For access to the reservoir filler cap, pull on
the telescopic filler pipe and unclip the cap.
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.
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Levels and checks

144
Brake pads
Brake pad wear depends on the style of
driving, in particular for vehicles which are
used in town, over short distances. It may
be necessary to check the thickness of the
pads, even between services.
Brake disc wear
For any information on checking the brake
disc wear, contact a CITROËN dealer or a
qualified workshop.If this warning lamp comes on,
have the brake pad wear checked
by a CITROËN dealer or a
qualified workshop.
Parking brake
Where the parking brake travel is too great
or there is a reduction in the performance
of the system, the parking brake should be
adjusted, even between services.
Have the system checked by a CITROËN
dealer or a qualified workshop.
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. These operations will keep your vehicle
in good running order. Ask for advice
from a CITROËN dealer or refer to the
manufacturer's service schedule included in
the handbook pack.
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Battery
At the start of winter, have your battery
checked by a CITROËN dealer or a qualified
workshop.
Air filter and passenger
compartment filter
A clogged passenger compartment filter
may reduce the performance of the
air conditioning system and generate
undesirable odours. The replacement
intervals for these components are given in
the maintenance and warranty guide.
Depending on the environment (dusty
atmosphere...) and the use of the vehicle
(urban driving...), change them twice as
often if necessary.
Refer to the "Checks - Under the
bonnet" section.
Oil filter
Change the filter regularly, in accordance
with the manufacturer's service schedule.
Levels and checks

145
Manual gearbox
Have the level checked in accordance with
the manufacturer's servicing schedule.
Good practice
In order to avoid damaging the
electrical units, we strongly advise you
not to use high pressure washing to clean
the engine compartment.
After washing the vehicle dampness, or in
winter, ice may form on the brake discs and
pads: braking efficiency may be reduced.
Make some light brake applications to dry
and de-ice the brakes. Only use products recommended by
CITROËN or products of equivalent quality
and specification.
In order to optimise the operation of units as
important as the braking system, CITROËN
selects and offers specific products.
diesel fuel filter
The Diesel fuel filter is located under the
bonnet, close to the brake fluid reservoir.
If this warning lamp comes on, the
filter must be bled to remove water.
Y

ou can also bleed the fuel filter
regularly, every time the engine oil
is changed.
Bleeding water from the filter
-

Connect a transparent pipe to the head

of the bleed screw 1 .
-

Place the other end of the transparent

pipe in a recipient.
-

Slacken the bleed screw
2. HDi engines uses 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. -
Switch on the ignition.
-

W
ait until the lift pump stops running.
-
Switch of
f the ignition.
-
T
ighten the bleed screw 2
.
-
Remove, then empty the transparent

pipe and the recipient.
-
Start the engine.
-

Check for the absence of leaks.
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Levels and checks

146
Operating fault
If this alert persists, do not ignore the
warning; it indicates that a fault has occurred
in the exhaust / particle filter system.
Have the whole system checked by a
CITROËN dealer or a qualified workshop.
If there is risk of blockage of the
filter, this warning lamp comes on
in the instrument panel.
Saturation /
r
egeneration
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,

...) so as to avoid
any risk of fire.
Particle filter system (diesel)
An addition to the catalytic converter, this
filter makes an active contribution to the
preservation of air quality by the retaining
of the unburnt pollutant particles. Black
exhaust fumes are thus no longer emitted.
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 invoked
according to the quantity of particles
accumulated and the driving conditions
of the vehicle. 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. 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

40 mph (around 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 regeneration of the
filter; repeated interruptions could cause
premature deterioration of the engine oil. It
is not recommended to end regeneration of
the filter with the vehicle stationary.
This alert tells you that the particle filter
is starting to fill up (in conditions of urban
driving of exceptionally long duration: low
speeds, traffic jams etc.)
Levels and checks

147
Low fuel level
rEF

u
ELLI
n
G
In low temperatures
In mountainous and/or cold areas, it is
advisable to use a "winter" type fuel suited
to low or minus temperatures.
With Stop & Start, never refuel with

the system in STOP mode; you must
switch off the ignition with the key. When the fuel tank level E
(Empty) is reached, this warning
lamp comes on.
You then have around 10 to
12 litres in the reserve, depending on the
capacity of the tank and the engine.
Refuel without delay to avoid running out of
fuel.
The fuel tank must be filled with the engine
off.
-
Open the fuel filler flap.
-

Support the black cap with one hand.
-

With the other hand, insert the key
, then
turn it anticlockwise.
-
Remove the black cap and hook it onto

the clip located on the inside of the flap. A label affixed to the inside of the flap
reminds you of the type of fuel to be used.
When filling the fuel tank, do not continue
after the 3rd cut-off of the nozzle. This could
cause malfunctions.
-

After filling the fuel tank, lock the black

cap and close the flap.
BlueH d i and AdBlue
The blue cap is only present on BlueHDi
Diesel versions.
For more information, refer to the "AdBlue"
section.
To understand the significance of the
precautions mentioned on the labels,
refer to the "Quick help - Label glossary"
section.
The capacity of the fuel tank is
approximately 90
litres.
Fuel tanks of different capacities may be
fitted, 60 and 120 litres, depending on the
engine.
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Fuel

148
Fuel used for diesel engines
The Diesel engines are compatible with
biofuels that conform to current and future
European standards and can be obtained
from filling stations:The use of B20 or B30 fuel
meeting standard EN16709
is possible in your Diesel
engine. However, this use,
even occasional, requires
strict application of the special
servicing conditions referred to
as "Arduous conditions".
The use of any other type of (bio)
fuel (vegetable or animal oils, pure or
diluted, domestic fuel...) is strictly prohibited
(risk of damage to the engine and fuel
system).
The

only Diesel additives authorised for
use are those that meet the B715000
standard.
-

Diesel fuel that meets

standard EN590 mixed
with a biofuel that meets
standard EN14214 (possibly
containing up to 7 % Fatty
Acid Methyl Ester),
-

Diesel fuel that meets

standard EN16734 mixed
with a biofuel that meets
standard EN14214 (possibly
containing up to 10 % Fatty
Acid Methyl Ester),
-

Paraf
finic Diesel fuel that
meets standard EN15940
mixed with a biofuel that
meets standard EN14214
(possibly containing up
to 7
% Fatty Acid Methyl
Ester). For more information, contact a CITROËN
dealer or a qualified workshop.
travelling abroad
c

ertain fuels could damage the
engine of your vehicle. In certain
countries, the use of a particular fuel
may be required (specific octane rating,
specific sales name…) to ensure correct
operation of the engine.
Far any additional information, contact the
dealer.
Fuel

149
FuEL SYS t EM cut- OFF
After the collision and before restore
these supplies, check that there is no
fuel leak or sparks, to avoid the risk of fire. In the event of a collision, a device
automatically cuts off the fuel supply
from the engine and cuts off the vehicle's
electrical supply
It triggers operation of the hazard warning
lamps and courtesy lamps, and unlocking of
the doors. To restore the fuel supply, press the first
button, located below the steering wheel.
Then to restore the electrical power
supply, press the second button, located
in the battery compartment under the front
passenger's floor (Minibus).
On other versions, the second button is


replaced by a fuse; contact a CITROËN
dealer or a qualified workshop.
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Fuel

150
BLuEHdI And AdBLuE®
AdBlue® is the brand name of the solution
needed for operation of the SCR system.
This solution is a urea-based fluid.
This fluid is non-flammable, colourless and
odourless. BlueHDI vehicles have a specific AdBlue
®
additive tank with a capacity of 15 litres.
It has an exterior filler located behind the
fuel filler flap below the fuel filler cap and
closed with a blue filler cap.
The aim of BlueHDi is to reduce the
emissions of NOx (nitrous oxides) in the
air by up to 90%, using a system that
converts NOx into water vapour and nitrogen
in a dedicated catalytic converter: SCR
(Selective Catalytic Reduction).
This objective meets the "Euro 6" emissions
standard adopted by the European Union
aimed at limiting the emissions of pollutants
from internal combustion engines.
The SCR technology used on BlueHDi
engines involves the injection of AdBlue®
into the exhaust system.
Scr technology
AdBlue®