2016 CITROEN RELAY engine

135
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.
7
CHECKS
Fuel

136
BLuEHdI
A nd AdB L u E® AddItIVE
AdBlue® is the brand name of the solution
needed for operation of the SCR system.
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 objective of BlueHDi is to reduce by
up to 90% the emissions of NOx (nitrous
oxides) in the air, 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
®
fluid into the exhaust system. This operation can also be carried out
by a CITROËN dealer or a qualified
workshop.
Scr technology
Filling of the AdBlue® tank can be done
using:
-

5 or 10 litres containers equipped with a

10 centimetre filler tube or the filling kit
available from CITROËN dealers,
-

1.89 litre botles that are screwed onto

the filler neck, available from CITROËN
dealers,
-

or when at a fuel filling station equipped

with a special AdBlue
® delivery pump for
heavy or light vehicles.
AdBlue® additive

138
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.
Every time the ignition is switched on, the
alert is given, together with an audible
signal.
r

emaining 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.
At 0 miles the system installed in the
vehicle to meet the emissions standard
will prevent engine starting. The 0 level of AdBlue
® additive has been
reached.
Your vehicle's exhaust emissions no longer
meet the "Euro 6" standard and the engine
will not start.
To be able to restart the vehicle, you must
add at least 3.8 litres of AdBlue
®.
-

Pour the additive into the tank (by the

filler with the blue cap).
-

Switch on the ignition without starting.
-


W

ait 10 seconds before starting the
engine.
r

emaining range less than 350 miles
(600

km) and more than 0 miles
Starting prevented, breakdown related to a
lack of AdBlue
® additive in the special tank
Avoid waiting until the remaining
range is 0 miles!
The alert is repeated when driving until the
AdBlue additive tank has been topped-up
with sufficient additive.
Unless the additive in the special additive
tank is topped-up, you risk immobilisation of
the vehicle. Following this, make a further fill to the
special additive tank, the capacity of
which is 15 litres. Or go to a CITROËN dealer or a
qualified workshop.
AdBlue® additive

139
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® additive
7
CHECKS

140
refilling / topping-up the
AdBlue® additive
Precautions to take
Use only AdBlue® additive that meets the
ISO 22241 standard.
The AdBlue
® additive is an urea-based
solution.
This liquid is non-flammable, colourless and
odourless.
To be kept in a cool area.
c

ontainers (5 or 10 litres) and
bottles

(1.89 litres) of AdBlue
®
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. 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 additive is split or splashed,
wash immediately with cold water or
wipe with a damp cloth.
If the additive has crystallised, clean it off
using a sponge and hot water.
AdBlue® additive

142
A. Positive metal point on your vehicle
B.
Slave battery
c

.
Earth on your vehicle
Make connections only to the points


indicated and illustrated above. Failure
to observe this instruction introduces
the risk of short-circuit!Starting from another battery
B
A
tt

E
r
Y
c
harging the battery using
a charger
- Connect the red cable to the metal
point
A then to the positive (+) terminal


of the slave battery B .
-

Connect one end of the green or black

cable to the negative (-) terminal of the
slave battery B .
-

Connect the other end of the green or

black cable to the earth point
c
on your

vehicle.
-

Operate the starter
, let the engine run.
-

W
ait for the engine to return to idle, then
disconnect the cables. -
Go to the battery located in the front left
floor.
-

Disconnect the battery
.
-

Follow the instructions for use given by

the battery charger manufacturer.
-

Reconnect starting with the negative (-)

terminal.
-

Check that the terminals and connectors

are clean. If they are covered with
sulphate (white or greenish deposit),
disconnect them and clean them.
Discharged battery

143
Access to the battery
Unscrew the 6 access cover retaining
screws.
Lift off or remove completely the access
cover.
Press lever 1 downwards to spread the
clamp.
Remove the terminal 2 from the negative (-)
post. The batteries contain harmful
substances such as sulphuric acid and
lead. They must be discarded in accordance
with the provisions of the law and must not,
in any circumstances, be discarded with
household waste.
Take used batteries to a special collection
point.
The charging operation must be carried
out in a ventilated area away from
naked flames or any possible sources of
sparks to eliminate the risk of explosion and
fire.
Do not attempt to charge a frozen battery: it
must first be thawed to eliminate the risks of
explosion. If the battery has frozen, before
charging it have it checked by a specialist
who will check that the internal components
have not been damaged and that the
container is not cracked, which could mean
that there is a risk of a leak of toxic and
corrosive acid.
Proceed with a slow charge charge at low
current for a maximum pf about 24 hours to
avoid damaging the battery. Before disconnecting the battery, you must
wait for 2 minutes after switching off the
ignition.
Never disconnect a terminal when the
engine is running.
Never charge a battery without first
disconnecting the terminals.
Close the windows and doors before
disconnecting the battery.
After every reconnection of the battery,
switch on the ignition and wait 1 minute
before starting to allow the electronic
systems to be initialised. If slight difficulties
are experienced after this, please contact a
CITROËN dealer or a qualified workshop.
Discharged battery
QUICK HELP
8

145
The three fuseboxes are located in the
dashboard on the left-hand side, in the
right-hand side pillar and in the engine
compartment.
The descriptions provided cover only the
fuses that can be replaced by the user. For
any other replacement, go to a CITROËN
dealer or a qualified workshop.
removing and fitting a fuse
Before changing a fuse, the cause of the
fault must be found and rectified. The fuse
numbers are indicated on the fusebox.
Always replace a faulty fuse with a fuse
of the same rating.
cHAnGInG A Fu SECITROËN does not accept any
responsibility for expenses incurred
by repairs to your vehicle or for any
malfunctions resulting from the installation
of additional accessories which are not
supplied or recommended by CITROËN and
which are not installed in accordance with its
instructions, in particular when the combined
consumption of all of the additional
equipment connected exceeds
10 milliamperes.
Good
Failed
Information for technicians: for
complete information on the fuses and
relays, refer to the wiring diagrams in the
workshop procedures via the CITROËN
dealer network.
dashboard, left-hand side,
fuses
Remove the bolts and tilt the box to access
the fuses.
QUICK HELP
8
Failed fuse