2023 CITROEN DS4 fuel pump

166
Fuel
Tank capacity: approximately 60 litres.
Low fuel level
When the low fuel level is reached
in the tank, this warning lamp
comes on in the instrument panel,
accompanied by an audible warning
and the display of an alert message.
When it first comes on, about
6 litres of fuel is left in the tank.
Until sufficient fuel has been added, every time
the ignition is switched on, this warning lamp
appears, accompanied by an audible signal
and an alert message. When driving, this
audible signal and alert message are repeated
with increasing frequency, as the level drops
towards 0 .
You must refuel as soon as possible to avoid
running out of fuel.
If you run out of fuel (Diesel), refer to the
corresponding section.
Refuelling
Additions of fuel must be of at least 5 litres, in
order to be registered by the fuel gauge. With Stop & Start, never refuel with the
system in STOP mode; you must switch
off the ignition with the key, or the START/
STOP button if your vehicle has Keyless
Entry and Starting.
Opening the filler cap may create a noise
caused by an inrush of air. This vacuum is
entirely normal, resulting from the sealing of the
fuel system.
F
P
ress this button until the automatic
opening of the fuel flap is heard.
This control remains active for a few minutes after switching off the ignition. If necessary,
switch the ignition on again to reactivate it.
F
T
ake care to select the pump that delivers
the correct type of fuel for your vehicle. F
I
ntroduce the nozzle so as to push in the
metal non-return flap.
F
M
ake sure that the nozzle is pushed in as
far as possible before starting to refuel (risk
of blowback).
F
H
old it in this position throughout the filling
operation.
F
P
ush the fuel flap to close it.
If you are filling your tank to the top, do not
persist after the third cut- off; this could
cause your vehicle to malfunction.
Your vehicle is fitted with a catalytic converter,
which helps to reduce the level of harmful
emissions in the exhaust gases.
For petrol engines, you must use unleaded
fuel.
The filler neck is narrower, allowing only
unleaded petrol nozzles to be introduced.
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Practical information

167
If you have put in the wrong fuel for
your vehicle, you must have the fuel
tank drained and filled with the correct
fuel before star ting the engine.
Fuel cut-off
Your vehicle is fitted with a safety system that
cuts off the supply of fuel in the event of an
impact.
Misfuel prevention
(Diesel)
(Depending on the country of sale.)
Mechanical device which prevents filling the
tank of a Diesel vehicle with petrol. It avoids
the risk of engine damage that can result from
filling with the wrong fuel.
Located in the filler neck, the misfuel
prevention device appears when the filler cap
is removed.
Operation
When a petrol filler nozzle is introduced into
your Diesel tank, it comes into contact with the
flap. The system remains closed and prevents
filling.
Do not persist but introduce a Diesel type
filler nozzle.It remains possible to use a fuel can to fill
the tank.
In order to ensure a good flow of fuel,
do not place the nozzle of the fuel can in
direct contact with the flap of the misfuel
prevention device and pour slowly. Travelling abroad
As Diesel fuel pump nozzles may be
different in other countries, the presence
of the misfuel prevention device may make
refuelling impossible.
Not all Diesel vehicles are fitted with
misfuel protection, so before travelling
abroad, we recommend that you check
with the dealer network whether your
vehicle is suitable for the fuel pumps in the
country in which you intend to travel.
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Practical information

214
Running out of fuel
(Diesel)
On vehicles fitted with Diesel engines, the fuel
system must be primed if you run out of fuel.
For all versions other than BlueHDi, refer to the
corresponding engine compartment view.For more information on Diesel misfuel
prevention , refer to the corresponding
section.
If the engine does not start first time, do
not 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.
Other HDi engines
(Except BlueHDi version)
F
F
ill the fuel tank with at least five litres of
Diesel.
F

O
pen the bonnet.
F

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

O
perate 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

P
ut the cover in place and clip it in.
F

C
lose the bonnet again.
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In the event of a breakdown