CITROËN C4 Handbook page 237

. After first
F Obtain a bottle of AdBlue
®
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 displays and the
impossibility of starting the engine - you
must add at least 3.8 litres
(so two 1.89 litre bottles).
F 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.
F Refit the blue cap to the tank and turn it a
®
6 of a turn clockwise, to its stop.
th
F Refit the black plastic blanking plug,
clipping it in on the flap
F Detach the cord from the parcel shelf
support and lower the boot floor.
Practical information
Important: in the event of a top-up
after a breakdown because of a lack
of additive, you must wait around
5 minutes before switching on the
ignition, without opening the
driver's door, locking the vehicle,
introducing the key into the ignition
switch, or introducing the key of the
"Keyless Entry and Starting" system
into the passenger compartment.
Switch on the ignition, then, after
10 seconds, start the engine.
®
Never dispose of AdBlue additive
bottles in the household waste. Place
them in a special container provided
this purpose or take them to your dealer.
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