2012 Citroen C4 fuel
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4
ACCESS
97
Quality of the fuel used for
petrol engines
The petrol engines are perfectly com-
patible with E10 or E24 type petrol
biofuels (containing 10 % or 24 % etha-
nol), conforming to European standards
EN 228 and EN 15376.
E85 type fuels (containing up to 85 %
ethanol) are reserved exclusively for ve-
hicles marketed for the use of this type
of fuel (BioFlex vehicles). The quality of
the ethanol must comply with European
standard EN 15293.
For Brazil only, special vehicles are
marketed to run on fuels containing up
to 100 % ethanol (E100 type).
Quality of the fuel used for
Diesel engines
The Diesel engines are perfectly com-
patible with biofuels which conform to
current and future European standards
(Diesel fuel which complies with stan-
dard EN 590 mixed with a biofuel which
complies with standard EN 14214)
available at the pumps (containing up
to 7 % Fatty Acid Methyl Ester).
The B30 biofuel can be used in certain
Diesel engines; however, this use is sub-
ject to strict application of the special ser-
vicing conditions. Contact a CITROËN
dealer or a qualifi ed workshop.
The use of any other type of (bio)fuel
(vegetable or animal oils, pure or dilut-
ed, domestic fuel...) is strictly prohibited
(risk of damage to the engine and fuel
system).
The petrol or Diesel engine of your ve-
hicle is fi tted with a catalytic converter, a
device which helps to reduce the level of
harmful emissions in the exhaust gases.
For petrol engines, the use of un-
leaded fuel is compulsory.
The fi ller neck is narrower, admitting
unleaded petrol nozzles only.
Fuel supply cut-off
Your vehicle is equipped with a safety
device which cuts off the fuel supply in
the event of a collision.
Page 100 of 332
4
ACCESS
98
MISFUEL PREVENTION
(DIESEL) *
Mechanical device which prevents fi ll-
ing the tank of a Diesel vehicle with
petrol. It avoids the risk of engine dam-
age that can result from fi lling with the
wrong fuel.
Located in the fi ller neck, the misfuel
prevention device appears when the
fi ller cap is removed.
Operation
When a petrol fi ller nozzle is introduced
into the fuel fi ller neck of your Diesel
vehicle, it comes into contact with the
fl ap. The system remains closed and
prevents fi lling.
Do not persist but introduce a Diesel
type fi ller nozzle.
It remains possible to use a fuel
can to fi ll the tank; this must be
done slowly.
In order to ensure a good fl ow of
fuel, do not place the nozzle of
the fuel can in direct contact with
the fl ap of the misfuel prevention
device.
This equipment will become available
during the year.
*
According to country of sale.
Travelling abroad
As Diesel fuel pump nozzles
may be different in other coun-
tries, the presence of the misfuel
prevention device may make re-
fuelling impossible.
Before travelling abroad, we
recommend that you check with
the CITROËN dealer network,
whether your vehicle is suitable
for the fuel pumps in the country
in which you want to travel.
Page 157 of 332
9
DRIVING
155
GEAR EFFICIENCY INDICATOR *
System which reduces fuel consump-
tion by advising the driver to change up
on vehicles fi tted with a manual gearbox.
*
According to engine.
Operation
The system intervenes only when driv-
ing economically.
Depending on the driving situation and
your vehicle's equipment, the system
may advise you to skip one or more
gears. You can follow this instruction
without engaging the intermediate
gears.
The gear engagement recommenda-
tions must not be considered compulso-
ry. In fact, the confi guration of the road,
the amount of traffi c and safety remain
determining factors when choosing the
best gear. Therefore, the driver remains
responsible for deciding whether or not to
follow the advice given by the system.
This function cannot be deactivated.
- You press the accelerator pedal
moderately.
Example:
- You are in third gear.
- The system may suggest that you
engage a higher gear, if appropriate.
The information appears in the instru-
ment panel in the form of an arrow
accompanied by the suggested gear.
In the case of driving which
makes particular demands on
the performance of the engine
(fi rm pressure on the accelerator
pedal, for example, when over-
taking...), the system will not rec-
ommend a gear change.
The system never suggests:
- engaging fi rst gear,
- engaging reverse gear,
- engaging a lower gear.
Page 159 of 332
9
DRIVING
157
Displays in the instrument panel
Gear lever positions
N.
Neutral
R.
Reverse
1, 2, 3, 4, 5, 6.
Gears in sequential mode.
AUTO.
This comes on when the au-
tomated mode is selected. It
switches off on changing to se-
quential mode.
You must press the brake pedal
when starting the engine.
)
Select position N
.
)
Press the brake pedal down fully.
)
Start the engine.
Moving off
)
Select automated mode (position A
)
or sequential mode (position M
) or
reverse (position R
).
)
Release the parking brake unless it
is programmed to automatic mode.
)
Progressively take your foot off the
brake pedal.
)
Accelerate away.
Automated mode
)
Select position A
.
For optimum acceleration, for example
when overtaking another vehicle, press
the accelerator pedal fi rmly past the
point of resistance.
Engagement of reverse gear is ac-
companied by an audible signal.
N
fl ashes in the instrument panel,
accompanied by an audible sig-
nal and a message in the multi-
function screen, if the gear lever
is not in position N
on starting.
AUTO
and 1 , 1 or R appear in the in-
strument panel screen.
The gearbox operates in auto-active
mode, without any action on the part
of the driver. It continuously selects the
most suitable gear for:
- optimisation of fuel consumption,
- the style of driving,
- the profi le of the road.
- the vehicle load.
N
appears in the instrument
panel screen.
The Foot on brake
warning lamp comes on
the instrument panel,
accompanied by an au-
dible signal and a message in
the screen, if the brake pedal is
not pressed on starting the en-
gine.
Never select neutral N
when
driving.
AUTO
and the gear engaged
appear in the instrument pan-
el screen.
Page 163 of 332
9
DRIVING
161
Manual operation
)
Select position M
for sequential
changing of the six gears.
)
Push the lever towards the +
sign to
change up a gear.
)
Pull the lever towards the -
sign to
change down a gear.
It is only possible to change from one
gear to another if the vehicle speed and
engine speed permit; otherwise, the
gearbox will operate temporarily in au-
tomatic mode.
D
disappears and the gears
engaged appear in succes-
sion in the instrument panel.
If the engine speed is too low
or too high, the gear selected
fl ashes for a few seconds, then the ac-
tual gear engaged is displayed.
It is possible to change from position D
(automatic) to position M
(manual) at
any time.
When the vehicle is stationary or mov-
ing very slowly, the gearbox selects
gear M1
automatically.
The sport and snow programmes do
not operate in manual mode.
Invalid value during manual
operation
This symbol is displayed if a
gear is not engaged correctly
(selector between two posi-
tions).
Stopping the vehicle
Before switching off the engine, you
can engage position P
or N
to place the
gearbox in neutral.
In both cases, apply the parking brake
to immobilise the vehicle, unless it is
programmed to automatic mode.
If the lever is not in position P
,
when the driver's door is opened
or approximately 45 seconds af-
ter the ignition is switched off,
there is an audible signal and a
message appears.
)
Return the lever to position P
;
the audible signal stops and
the message disappears.
You risk damaging the gearbox:
- if you press the accelera-
tor and brake pedals at the
same time,
- if you force the lever from po-
sition P
to another position
when the battery is fl at. When the ignition is on, the
lighting of this warning lamp,
accompanied by an audible
signal and a message in the multifunc-
tion screen, indicates a gearbox mal-
function.
In this case, the gearbox switches to
back-up mode and is locked in 3rd gear.
You may feel a substantial knock when
changing from P
to R
and from N
to R
.
This will not cause any damage to the
gearbox.
Do not exceed 60 mph (100 km/h), lo-
cal speed restrictions permitting.
Have it checked by a CITROËN dealer
or a qualifi ed workshop.
This warning lamp may also come on if
a door is opened.
Operating fault
To reduce fuel consumption
when stationary for long periods
with the engine running (traffi c
jam...), position the gear lever
at N
and apply the parking brake,
unless it is programmed in auto-
matic mode.
Page 165 of 332
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DRIVING
163
STOP & START
The Stop & Start system puts the en-
gine temporarily into standby - STOP
mode - during stops in the traffi c (red
lights, traffi c jams, or other...). The en-
gine restarts automatically - START
mode - as soon as you want to move
off. The restart takes place instantly,
quickly and silently.
Perfect for urban use, the Stop & Start
system reduces fuel consumption and
exhaust emissions as well as the noise
level when stationary.
Operation
Going into engine STOP mode
The "ECO"
warning lamp
comes on in the instrument
panel and the engine goes into
standby automatically:
- with a manual gearbox
, at speeds
below 12 mph (20 km/h), when you
put the gear lever into neutral and
release the clutch pedal, If your vehicle is fi tted with
the system, a time counter
calculates the sum of the
periods in STOP mode dur-
ing a journey. It resets itself to zero ev-
ery time the ignition is switched on with
the key.
- with the 6-speed electronic gear-
box system
, at a speed below
5 mph (8 km/h), when you press the
brake pedal or put the gear lever
into position N
. With the electronic gearbox
system, for your comfort dur-
ing parking maoeuvres, STOP
mode is not available for a few
seconds after coming out of re-
verse gear.
STOP mode does not affect the
functionality of the vehicle, such
as braking, power steering, for
example.
Special cases: STOP mode
unavailable
STOP mode is not invoked when:
- the driver's door is open,
- the driver's seat belt is not fas-
tened,
- the vehicle has not exceeded 6 mph
(10 km/h) since the last engine start
using the key,
- the electric parking brake is applied
or being applied,
- the engine is needed to maintain a
comfortable temperature in the pas-
senger compartment,
- demisting is active,
- some special conditions (battery
charge, engine temperature, brak-
ing assistance, ambient tempera-
ture...) where the engine is needed
to assure control of a system.
In this case, the "ECO"
warning
lamp fl ashes for a few seconds,
then goes off. Never refuel with the engine in
STOP mode; you must switch off
the ignition with the key.
This operation is perfectly normal.
Page 183 of 332
10
CHECKS
181
RUNNING OUT OF FUEL
(DIESEL)
1.6 litre HDi engine
)
Fill the fuel tank with at least fi ve
litres of diesel.
)
Open the bonnet.
)
If necessary, unclip the styling cover
for access to the priming pump.
)
Squeeze and release the priming
pump repeatedly until resistance is
felt (there may be resistance at the
fi rst press).
)
Operate the starter until the engine
starts (if the engine does not start
at the fi rst attempt, wait around
15 seconds before trying again).
)
If the engine does not start after a
few attempts, operate the priming
pump again then start the engine.
)
Clip the styling cover back in place.
)
Close the bonnet.
2 litre HDi engine
)
Fill the fuel tank with at least fi ve litres
of Diesel.
)
Open the bonnet.
)
Unclip the style cover for access to
the priming pump.
)
Slacken the bleed screw.
)
Squeeze and release the priming
pump repeatedly until fuel appears
in the transparent pipe with the
green connector.
)
Tighten the bleed screw.
)
Operate the starter until the engine
starts.
)
Put the style cover back in position
and clip it in place, ensuring that it
has clipped correctly.
)
Close the bonnet.
If the engine does not start fi rst
time, don't keep trying. Start the
procedure again from the begin-
ning.
On vehicle fi tted with HDi engines, the
fuel system must be primed if you run
out of fuel; refer to the engine com-
partment view on the "Diesel engine"
page.
If the tank on your vehicle is fi tted with
a misfuel prevention device, refer to the
section "Access - § Misfuel prevention
(Diesel)".
Page 185 of 332
10
CHECKS
183
*
According to engine.
DIESEL ENGINES
The various caps and covers allow access for checking the levels of the various fl uids, for replacing certain components and
for priming the fuel system.
1.
Power steering reservoir.
2.
Screenwash and headlamp wash
reservoir.
3.
Coolant reservoir.
4.
Brake fl uid reservoir.
5.
Battery/Fuses.
6.
Fusebox.
7.
Air fi lter.
8.
Engine oil dipstick.
9.
Engine oil fi ller cap.
10.
Priming pump * .
11 .
Bleed screw * .