fuel reserve Citroen C4 2012 2.G Owner's Manual

III
57
COMFORT

Air conditioning

To ensure that your system operates
correctly, it is recommended that you
have it checked regularly.
Water arising from condensation
in the air conditioning drains away
through a hole provided for this pur-
pose. A pool of water may thus form
under the vehicle when stationary.
To preserve the sealing of the air
conditioning compressor, operate
the air conditioning at least once a
month.
Regardless of the season, the air
conditioning is useful, since it re-
moves humidity and condensation.
To be effective, the air conditioning
should only be used with the win-
dows closed.
If after a lengthy stop in bright sunlight
the interior temperature is excessive,
air the passenger compartment by
opening the windows for a few mo-
ments, then close them again.
The air conditioning operates by
using power from the engine. This
results in a slight increase in fuel
consumption.


Dust filter/Odour filter (active
carbon)
There is a fi lter for excluding odours
and dust.
This fi lter has to be changed in ac-
cordance with the vehicle's servicing
schedule (see the servicing booklet).


Air circulation

Air vents on the fl oor underneath the
front seats provide enhanced heat-
ing for the rear seat positions; take
care not to obstruct them.


Air vents

The air vents to the face have grilles
and thumb wheels to adjust the air
fl ow and direction (up-down, right-
left).
The automatic regulation of the air
conditioning in the passenger com-
partment uses a number of sensors
(sunshine sensor, ambient tempera-
ture sensor...) that relieve you of the
need to make frequent adjustments to
the displayed temperature.
Take care not to obstruct the sun-
shine sensor, located on the dash-
board behind the instrument panel.


Sensors

IV
93
ACCESS
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, you must use
unleaded fuel.
The fi ller neck is narrower, allowing only
unleaded petrol nozzles to be intro-
duced.

If you have put in the wrong fuel
for your vehicle, you must have
the fuel tank drained and fi lled
with the correct fuel before start-
ing the engine.













Quality of the fuel used for
petrol engines











Quality of the fuel used for
Diesel engines

Fuel cut-off

Your vehicle is equipped with a safe-
ty device which cuts off the fuel sup-
ply in the event of a collision.
The petrol engines are perfectly
compatible with E10 or E24 type pet-
rol biofuels (containing 10 % or 24 %
ethanol), conforming to European
standards EN 228 and EN 15376.
E85 type fuels (containing up to
85 % ethanol) are reserved exclu-
sively for vehicles marketed for the
use of this type of fuel (BioFlex ve-
hicles). The quality of the ethanol
must comply with European stan-
dard EN 15293.
For Brazil only, special vehicles are
marketed to run on fuels containing
up to 100 % ethanol (E100 type).

The Diesel engines are perfectly
compatible with biofuels which con-
form to current and future European
standards (Diesel fuel which com-
plies with standard 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 cer-
tain Diesel engines; however, this
use is subject to strict application
of the special servicing 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 di-
luted, domestic fuel...) is strictly pro-
hibited (risk of damage to the engine
and fuel system).