2021 CITROEN C3 ad blue

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AdBlue® and SCR system
for BlueHDi Diesel engines
To assure respect for the environment and
conformity with the new Euro 6 emissions
standard, without adversely affecting the
per formance or fuel consumption of Diesel
engines, CITROËN has taken the decision to
equip its vehicles with an effective system that
associates SCR (Selective Catalytic Reduction)
with a particle filter (FAP) for the treatment of
exhaust gases.
SCR system
Using a fluid 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. Once the AdBlue
® tank is empty, a
s
ystem required by regulations prevents
starting of the engine.
If the SCR

system is faulty, the level
of emissions from your vehicle will no
longer meet the Euro 6 standard: 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: after
a running distance of 650 miles
(1

100 km), a system will be triggered
automatically to prevent engine starting.
In either case, a range indicator gives
you the distance you can travel before
the vehicle is immobilised.
The AdBlue® is held in a special tank with
a capacity of about 15 litres: this provides
a driving range of about 11 000 miles
(18

000

km). An alert is triggered automatically
to warn you when the reserve level is
reached: you can then drive about 1 500 miles
(2

400

km) before the tank is empty.
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 all weather
conditions.
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Precautions in use
Keep AdBlue® out of the reach of
children, in its original container or
bottle.
Never transfer AdBlue
® to another
container: it would lose its purity.
Never dilute AdBlue
® with water.
Never pour AdBlue® into the Diesel fuel
tank.
Never top up from an AdBlue
®
dispenser reserved for heavy goods
vehicles.
Use only AdBlue
® fluid that meets the
ISO

22241 standard. The supply in a non-drip container or bottle
simplifies topping up. You can obtain 1.89
litre
(half a US gallon) bottles or 5 or 10 litre
containers from a CITROËN dealer or a
qualified workshop.
AdBlue
® is a urea-based solution. This liquid is
non-flammable, colourless and odourless (kept
in a cool area).
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,
wash (irrigate) 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 release of ammonia
cannot be excluded: do not inhale the fluid.
Ammonia vapour has an irritant effect on
mucous membranes (eyes, nose and throat).
Topping up the AdBlue®
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Recommendations on storage
Never store bottles of AdBlue® in your
vehicle.
Procedure
Park the vehicle
F Switch off the ignition and remove the key from the switch to switch off the engine.
or
F

W
ith Keyless Entry and Starting, press the
" START/STOP " button to switch off the
engine.
AdBlue
® freezes at about -11°C and
deteriorates above 25°C. It is recommended
that bottles be stored in a cool area and
protected from direct sunlight .
Under these conditions, the fluid can be kept
for at least a year .
If the additive has frozen, it can be used once it
has completely thawed out. Before topping up, ensure that the vehicle is
parked on a flat and level sur face.
In wintry conditions, ensure that the
temperature of the vehicle is above -11°C.
Otherwise the AdBlue
® may be frozen and
so cannot be poured into its tank. Park your
vehicle in a warmer area for a few hours to
allow the top-up to be carried out.
Open the filler
F With the vehicle unlocked, open the fuel filler flap; the blue filler cap for the AdBlue®
tank is located to the right of the black fuel
filler cap.
F

T

urn the blue cap a quarter of a turn anti-
clockwise.
F

R

emove the blue cap.
Do not dispose of AdBlue
® bottles or
containers in the household waste.
Place them in a container provided for
this purpose or take them to your dealer.
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To p u p
F 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 4 litres and no
more than 10 litres. If any fluid is spilt 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.
Important:
when topping up after
running out of AdBlue , signalled
by the message " To p up AdBlue:
starting impossible ", you must wait for
about 5 minutes before switching the
ignition on again, without opening the
driver's door, unlocking the vehicle,
introducing the remote control key
into the ignition switch, or placing
the Keyless Entr y and Star ting
electronic key inside the vehicle.
Switch on the ignition, then wait for
10 seconds before starting the engine.
F
A
fter emptying the bottle, wipe away any
spillage around the tank filler using a damp
cloth.
Refit the filler cap
F Refit the blue cap and turn it a quarter of a turn clockwise, to its stop.
F

C
lose the filler flap.
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Warning triangle
The triangle can be stored on the rear face of
the boot, secured by straps.
Assembling the triangle
As a safety precaution, before leaving your
vehicle to set up and install the triangle, switch
on the hazard warning lamps and put on your
high visibility vest.Refer to the instructions provided with the
triangle.
Positioning the triangle
Running out of fuel
(Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel. For more information on Misfuel
prevention (Diesel) , refer to the
corresponding section.
If the engine does not start first
time, don't keep trying, but start the
procedure again from the beginning.
BlueHDi engines
F Fill the fuel tank with at least five litres of Diesel.
F

S
witch on the ignition (without starting the
engine).
F

W
ait around 6 seconds and switch off the
ignition.
F

R
epeat the operation 10 times.
F

O
perate the starter to run the engine.
F
P
lace the triangle behind the vehicle, as
required by local legislation.
Other HDi engines
(except BlueHDi version)
F A dd at least five litres of Diesel fuel to the
tank.
F

O
pen the bonnet.
F

I
f necessary, unclip the styling cover for
access to the priming pump.
F

S
queeze and release the priming pump
repeatedly until resistance is felt (there
may be resistance at the first press).
F

O
perate the starter to start the engine
(if the engine does not start at the first
attempt, wait around 15 seconds before
trying again).
F

I
f the engine does not start after a few
attempts, operate the priming pump again
then start the engine.
F

R
efit the styling cover and clip it in place.
F

C
lose the bonnet.
In the event of a breakdown

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Taking out the wheel
F Unclip the tool storage box (standard spare wheel).
F

U
nscrew the central nut.
F

R
emove the fixing parts (nut and bolt).
F

R
aise the spare wheel towards you from
the rear.
F

T
ake the wheel out of the boot.
The spare wheel is installed in the boot under
the floor.
Depending on engine, the spare wheel is
a standard wheel or the space-saver type
(BlueHDi).
Access to the spare wheel
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FuseN° Rating
(A) Functions
F25 40Towbar pre-equipment.
F26 15Automatic gearbox or LPG system.
F27 25Built-in systems inter face (BSI).
F28 30Diesel emissions control system (AdBlue
®).
F29 40Windscreen wipers.
F3 50Passenger compartment fusebox.
F30 40Diesel pre-heating unit.
F31 80Additional heating (depending on equipment).
F32 80Power steering.
F4 30A B S / E S P.
F5 70Built-in systems inter face (BSI).
F6 60Cooling fan assembly.
F7 80Built-in systems inter face (BSI).
F8 15Engine management.
F9 15Engine management.
8
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Engines and towed loads - DIESEL
* The maximum power corresponds to the value type-approved on a test bed, under conditions defined in European legislation (Directive 1999/99/EC).Engine
BlueHDi 75 S&S manualHDi 90 BlueHDi 100 S&S manual
Gearbox 5-speed manual
(BVM5) 5-speed manual
(BVM5) 5-speed manual
(BVM5)
Code DV6FE - BE - STTdDV6DM - BEDV6FD - BE - STTd
Model code Wheel 640 = /A...
Wheel 620 = /B… SXBHW6/…
B0S - B1S - A0S SX9HJC/B0 - SX9HJC/A0
SXBHY6/B0S - SXBHY6/A0S
Capacity (cm
3) 1 5601 5601 560
Maximum power: EU standard (kW)* 5566 73
Fuel DieselDieselDiesel
Braked trailer (within GTW limit) on a 10 or 12%
gradient (kg) 600
600600
Unbraked trailer (kg) 450450450
Recommended nose weight (kg) 323232
Technical data