2019 CITROEN RELAY Adblue fault

14
Lane Depar ture
Warning SystemFlashing,
accompanied by an
audible signal. Unintended wandering to the
left or right.
Turn the steering wheel in the opposite direction to
return to the correct trajectory.
Fixed, accompanied
by an audible signal. The lane departure warning
system is defective. Clean the windscreen.
If the problem persists, have the system checked by
a
CITROËN dealer or a qualified workshop.
Warning/indicator lamp
StateCause Actions/Comments
Electronic
immobiliser Fixed.
The ignition key introduced has
not been recognised.
Starting is not possible. Use another key and have the faulty key checked by
a
CITROËN dealer.
For more information on Anti-theft protection , refer
to the corresponding section.
On for about
10


seconds after
switching on the ignition. Triggering of the alarm.
Have the state of the locks checked by a
CITROËN
dealer or a
qualified workshop.
Water in Diesel fuel
filter Fixed, accompanied
by a
message in the
screen. There is water in the fuel filter. Have the filter purged by a
CITROËN dealer or
a


qualified workshop.
For more information on Checks , refer to the
corresponding section.
AdBlue
Fixed, then flashing,
accompanied by
a message in the screen.Reduced driving range. Have the AdBlue topped up without delay.
For more information on AdBlue®, refer to the
corresponding section.
Dashboard instruments

21
AdBlue® liquid range
indicators
Once the AdBlue® tank is on reser ve or after
detection of a

fault with the SCR emissions
control system, when the ignition is switched
on, an indicator displays an estimate of the
distance that can be covered, the range, before
engine starting is prevented.
In the event of simultaneous system fault and
low AdBlue
® level, the shortest range figure is
the one displayed.
In the event of the risk of non-
starting related to a lack of
AdBlue
®
The engine start prevention system
required by regulations is activated
automatically once the AdBlue
® tank is
e m pt y.
Range greater than 1,500

miles (2,400 km)
When switching on the ignition, there is no
automatic display of range in the instrument
panel. Remaining range between 1,500
and
375 miles (2,400 and 600 km)
As soon as the 1,500 miles
threshold is reached, this warning
lamp comes on, accompanied by
a temporary message indicating
the remaining range, expressed in
kilometres or miles, before engine
starting is blocked.
Every time the ignition is switched on, the alert
is given together with an audible signal.
The reser ve level has been reached; it is
recommended that you top up as soon as
possible.
For more information on AdBlue
®
(BlueHDi engines) and, in particular
topping up, refer to the corresponding
section.
Range less than 375

miles (600

km)
As soon as the 375 miles threshold
is reached, this warning lamp comes
on, accompanied by a

message
indicating the remaining range,
expressed in kilometres or miles,
before engine starting is blocked. Every time the ignition is switched on, the alert
is given together with an audible signal.
It is essential to top up as soon as possible and
before the tank is completely empty. Other wise
you will not be able to restart the vehicle.
For more information on AdBlue
®
(BlueHDi engines) and, in particular
topping up, refer to the corresponding
section.
Breakdown related to a

lack of AdBlue
®
0 miles/km range reached: the AdBlue® tank
is empty. The regulatory device prevents the
engine from starting.
Unless the AdBlue
® is topped up in the
special additive tank, the vehicle will remain
immobilised.
To be able to restart the engine, you must
top up with at least 4
litres of AdBlue
®.
You can also call a

CITROËN dealer
or a

qualified workshop for the top-up
required.
The alert will be repeated with the remaining
range updated every 30 miles (50 km) travelled.
1
Dashboard instruments

22
For more information on AdBlue®
(BlueHDi engines) and, in particular
topping up, refer to the corresponding
section.
In the event of a fault with the
S CR emissions control system
Detection
The engine 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.
However, 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.
See a
CITROËN dealer or a qualified
workshop as soon as possible.
Fault confirmed
In addition to the previous signals, the
remaining range allowed will be displayed in
miles or kilometres in the instrument panel.
The alert will be repeated every 30
seconds
with an update of the driving range.
See a
CITROËN dealer or a qualified workshop
as soon as possible.
You risk not being able to start the engine.
Starting prevented after 250 miles
( 400 km)
At each starting attempt, the alert is
activated and the starting prevention
message is displayed.
To be able to restart the engine, you must see
a

CITROËN dealer or a qualified workshop.
Vehicle configuration
Using the MODE control
panel
This control panel provides access to menus to
personalise some of the vehicle systems.
Dashboard instruments

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