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adblue® additive and SCR system
f
or
BlueHDi Diesel engines
To assure respect for the environment and c
onformity with the new Euro 6 emissions
s
tandard, without adversely affecting the
p
er formance or fuel consumption of Diesel
e
ngines, CITROËN has taken the decision to
e
quip its vehicles with an effective system that
a
ssociates SCR (Selective Catalytic Reduction)
w
ith a particle filter (FAP) for the treatment of
e
xhaust gases.
Presentation of the SCR system
Using an additive called AdBlue® containing urea, a
catalytic
converter
turns
up
to
85% of nitrous o
xides
(NOx)
into
nitrogen
and
water, which are
h
armless
to
health
and
the
environment.
on
ce the a
dbl
ue
® tank is empty, a s
ystem
required
by regulations
p
revents
starting
of the engine.
If the SCR is faulty, the level of
emissions
from
your vehicle will no
l
onger
meet
the
Euro 6 standard: you
v
ehicle
becomes
polluting.
In
the
event
of
a
confirmed fault
w
ith
the
SCR
system, you must go
t
o
a
CITROËN
dealer or a qualified
w
orkshop
as
soon as possible: after
a
running
distance of 650 miles
(
1 100
km),
a
system will be triggered
a
utomatically
to
prevent engine starting.
The
a
dblu
e® additive is held in a special
tank
located
under the boot at the rear of
t
he
vehicle.
It has a capacity of 17 litres: this
p
rovides
a
driving range of about 12 500 miles
(
20
000
km),
after which an alert is triggered
w
arning
you
when the reserve remaining is
e
nough
for
just 1 500 miles (2 400 km).
During
each
scheduled service of your vehicle
b
y
a
CITROËN dealer or a qualified workshop,
t
he
a
d
blu
e
® additive tank is refilled in order to a
llow
normal operation of the SCR system.
If
the
estimated mileage between two services
i
s
greater
than 12 500 miles (20 000 km), we
r
ecommend
that you go to a CITROËN dealer
o
r
a
qualified workshop to have the necessary
t
op-up
carried out.
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Remaining range between 350 and 1500 miles (600 and 2 400 km)Remaining range between 0 and 350 miles (0 and 600 km)Breakdown related to a lack of AdBlue® additive
To be able to start the engine, w
e recommend that you call on
a
CITROËN dealer or a qualified
w
orkshop for the top-up required. If
y
ou carry out the top-up yourself, it is
essential
to add at least 3.8 litres of
a
d
blu
e
® to the tank.
R
efer
to
the "Topping-up" section.
When
switching
on
the
ignition,
the
U
REA warning
lamp
comes
on,
accompanied
b
y
an
audible
signal
and
the
display
of
a
m
essage
(e.g.:
"Top
up
emissions
additive:
S
tarting
prevented
in
900
miles")
indicating
t
he
remaining
range
expressed
in
miles
or
k
ilometres.
When
driving,
the
message
is
displayed
every
1
50
miles
(300
km)
until
the
additive
tank
has
be
en
t
opped-up.
Go
to
a
CITROËN
dealer
or
a
qualified
w
orkshop
to
have
the
AdBlue
® tank topped-up.
Y
ou
can
also
top-up
the
tank
yourself.
Refer
to
the
"Topping-up"
section. When
switching on the ignition, the SERVICE
w
arning lamp comes on and the UREA
w
arning lamp flashes, accompanied by an
a
udible signal and the display of a message
(
e.g. "Top up emissions additive: Starting
p
revented in 350 miles") indicating the
r
emaining range expressed in miles or
k
ilometres.
When driving, the message is displayed every
3
0 seconds until the additive tank has been
t
opped-up.
Go to a CITROËN dealer or a qualified w
orkshop to have the AdBlue® tank topped-up.
Y
ou
can
also
top-up
the
tank
yourself.
Refer
to
the
"Topping-up"
section.
ot
her wise you will not be able to restart your
engine. When
switching on the ignition, the SERVICE
w
arning lamp comes on and the UREA warning
l
amp flashes, accompanied by an audible
s
ignal and the display of the message "Top up
e
missions additive: Starting prevented".
The a d
blu
e
® tank
is empty: t he s ystem r equired b
y
regulations prevents engine starting.
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Starting prevented
To be able to start the engine, you must call on
a
CITROËN dealer or a qualified workshop.
You
have exceeded the authorised
d
riving limit: the starting prevention
s
ystem inhibits engine starting.Freezing of the AdBlue
® additive
The
a
d
blu
e
® additive freezes at
temperatures below around -11°C.
The
SCR
system includes a heater
f
or the
a
dbl
ue
® tank, allowing you to c
ontinue
driving in very cold conditions.
Every time the ignition is switched on, the SERVICE a
nd engine diagnostic warning lamps come on and t
he UREA warning lamp flashes, accompanied by
a
n audible signal and the display of the message
"
Emissions fault: Starting prevented".
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Topping-up the AdBlue® additive
Precautions in useFilling the AdBlue® tank is an operation i
ncluded in every routine service on your
vehicle
by
a
CITROËN dealer or a qualified
w
orkshop.
Nevertheless,
given the capacity of the tank,
i
t
may
be
necessary to top-up the additive
b
etween
services,
more particularly if an alert
(
warning
lamps
and a message) signals the
r
equirement.
You
can
got
to
a
CITROËN dealer or a qualified
w
orkshop.
If
you
envisage
topping-up yourself, please
r
ead
the
following
warnings carefully.
ke
ep a d
blu
e
® out of the reach of
children,
in
its
original bottle.
ne
ver transfer a d
blu
e
® to another
container:
it
would
loose its purity. Never
dilute the additive with water.
ne
ver pour the additive into the d
i
esel
fuel tank.
Never top-up from an AdBlue®
dispenser
reserved
for
heavy
goods
v
ehicles.
Use only
a
d
blu
e
® additive that meets t
he ISO 22241
standard.
The
supply
in
a
non-drip bottle simplifies
t
oping-up.
You
can obtain 1.89 litre (half a
U
S gallon)
bottles from a CITROËN dealer or a
q
ualified
w
orkshop.
The
a
dblu
e® additive is an urea-based
solution.
This liquid is non-flammable,
c
olourless
and odourless (kept in a cool area).
In
the
event
of contact with the skin, wash
t
he
affected
area with soap and water. In the
e
vent
of
contact with the eyes, wash (irrigate)
t
he
eyes
with large amounts of water or with
a
n
eye
wash
solution for at least 15 minutes.
I
f
a
burning
sensation or irritation persists, get
m
edical
attention.
If
swallowed, immediately wash out the mouth
w
ith
clean
water and then drink plenty of water.
In
certain
conditions (high ambient
t
emperature,
for example), the risk of release
o
f
ammonia
cannot be excluded: do not inhale
t
he
product.
Ammonia vapour has en irritant
e
ffect
on
mucous membranes (eyes, nose and
t
hroat).
Practical information