2017 CITROEN RELAY engine

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®

152
range indicators
Different levels of alert are triggered
according to the remaining driving range
threshold.
You will be informed as each mileage
threshold is reached and the alerts will
change from temporary to permanent.
-
The 1st alert is triggered at a remaining
driving range of 1 500 miles (2 400 km).
-

The 2nd alert is triggered at a remaining
driving range of 375 miles (600 km).
Up to 0 miles, at which point it will be
impossible to restart the engine after a stop.
r

ange greater than 1 500 miles (2 400 km)
No information displayed.
Once the 1 500 miles (2 400 km)
threshold is reached, this warning
lamp comes on temporarily and the
remaining range message is displayed.
remaining range less than 1 500 miles
(2 400 km) and greater than 375 miles
(600 km)
Once the 350 miles (600 km) threshold
is reached, this warning lamp flashes,
accompanied by a message on the
remaining driving range.
The alert is repeated with an update of the
remaining driving range in steps of 30 miles
(50 km) travelled.
Every time the ignition is switched on, the alert is
given together with an audible signal.0 miles operating range reached: the system
installed in the vehicle to meet the emissions
standard will prevent engine starting.
Your vehicle's exhaust emissions no longer
meet the "Euro 6" standard and the engine will
not start.
Unless the AdBlue
® is topped-up in the
special additive tank, the vehicle will remain
immobilised.
To be able to restart the vehicle, you must:
-

top-up the
AdBlue® with at least
3.8 litres.
-

or

go to a CITROËN dealer or a qualified
workshop.
r

emaining range less than 350 miles

(600 km) and more than 0 miles Starting prevented - Breakdown related to
a lack of AdBlue
®
in the special tank
Following this, make a further fill to the


special additive tank, the capacity of
which is 15 litres.
Every time the ignition is switched on, the
alert is given, together with an audible
signal.
AdBlue®

153
Fault with the Scr system
The diagnostic warning lamp
comes on.
Every time the ignition is
switched on, the emissions fault
is confirmed by an audible signal and a
message.
If it is a temporary fault, the alert disappears
as soon as the exhaust emissions return to
the levels required by the standard. Fault confirmed
In addition to the previous signals, the
remaining range allowed will be displayed in
miles (kilometres) in the instrument panel.
The alert will be repeated every 30 seconds
with an update of the driving range.
Go to a CITROËN dealer or a qualified
workshop as soon as possible.
You risk not being able to start the engine.
Starting prevented, having covered the
250 miles (400 km)
d

etection
At each attempt at starting,
the alert is activated and the
message on starting prevention is
displayed.
On the other hand, if the warning lamp


is still on after 30 miles (50 km) of
driving, the fault is confirmed.
An engine start prevention system
will be activated automatically after
250

miles (400 km) travelled following this
confirmation.
Go to a CITROËN dealer or a qualified
workshop.
AdBlue®
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154
refilling / topping-up the
AdBlue®
Precautions to take
To facilitate filling, an adaptor is
available from CITROËN dealers. Park the vehicle
-

Before topping-up, ensure that the

vehicle is parked on a flat and level
surface.
Open the filler
-

Open the fuel filler flap.
-


T
urn the blue cap a 6
th of a turn anti-
clockwise.
-

Remove the blue cap downwards.
top-up
-

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.
Important: if 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 3.8 litres
(so two 1.89 litre bottles).
-

After emptying the bottle, wipe away any

spillage around the tank filler using a
damp cloth.
If any fluid is split or splashed, wash


immediately with cold water or wipe
with a damp cloth.
If the fluid has crystallised, clean it off using
a sponge and hot water.
Use only AdBlue
® that meets

the ISO 22241 standard.
Please check the use-by date.
Read the instructions on the label.
Ensure that you have a suitable filler pipe,
which may or may not be supplied with the
container.
AdBlue®