cooling CITROEN C3 2009 Owners Manual

1
INSTRUMENTS and CONTROLS
Warning lamp is on Cause Action/Observations
Maximum
coolant
temperature fi xed red.
The temperature of the
cooling system is too high. Stop as soon as it is safe to do so.
Wait until the engine has cooled down before
topping up the level, if necessary.
If the problem persists, contact a CITROËN
dealer.
Engine oil
pressure fi xed. There is a fault with the
engine lubrication system. Stop as soon it is safe to do so.
Park, switch off the ignition and contact a
CITROËN dealer.
Battery
charge fi xed. The battery charging circuit
has a fault (dirty or loose
terminals, slack or cut
alternator belt, ...). This lamp should switch off when the engine is
started.
If it does not switch off, contact a CITROËN
dealer.
Door(s) open fi xed if the
speed is
below 6 mph (10 km/h).
A door or the boot is still
open. Close the door or boot.
fi xed and
accompanied
by an audible signal if the speed is
above 6 mph (10 km/h).

3
COMFORT
VENTILATION
System which creates and maintains
comfortable conditions in the vehicle's
passenger compartment.
Air intake
The air circulating in the passenger com-
partment is fi ltered and originates either
from the outside via the grille located at
the base of the windscreen or from the
inside in air recirculation mode. Air treatment
The incoming air follows various routes
depending on the controls selected by
the driver:
- direct arrival in the passenger com-
partment (air intake),
- passage through a heating circuit (heating),
- passage through a cooling circuit (air conditioning).
The temperature control enables you to
obtain the level of comfort required by
mixing the air of the various circuits. The air distribution control enables you
to diffuse the air in the passenger com-
partment combining several air vents.
The air fl ow control enables you to in-
crease or reduce the speed of the venti-
lation blower.
Control panel
The controls of this system are grouped
together on control panel
A on the cen-
tre console. Depending on the model,
the functions offered are:
- level of comfort required,
- air fl ow,
- air distribution,
- demisting and defrosting,
- manual or automatic air conditioning controls.
Air diffusion

1. Windscreen demisting/defrosting
vents.

2. Front side window demisting/de-
frosting vents.

3. Side adjustable and closing vents.

4. Central adjustable and closing vents.

5. Air outlets to the front footwells.

6. Air outlets to the rear footwells.

3
COMFORT
4. Air conditioning on/off Press this button to switch off
the air conditioning.
Stopping the air conditioning may cause
some problems (humidity, misting).
Automatic operation of the air condi-
tioning is resumed when the button is
pressed again. The symbol "A/C" is
displayed.
5. Air intake/Air recirculation
Press this button for recircula-
tion of the interior air. The air
recirculation symbol 5 is dis-
played.
Air recirculation enables the passenger
compartment to be isolated from exte-
rior odours and smoke. 6. Air distribution adjustment
Avoid prolonged recirculation of
interior air (risk of condensation
or deterioration of the air quality).
Pressing this button several
times in succession enables
the air fl ow to be directed in
turn towards:
- the windscreen and the side win- dows (demisting or defrosting),
- the windscreen, side windows and air vents,
- the windscreen, the side windows, the air vents and the footwells,
- the windscreen, the side windows and the footwells,
- the footwells,
- the air vents and the footwells,
- the air vents. 7. Air flow adjustment
Press the "full fan" symbol to
increase the air fl ow.
The air fl ow symbol, the fan, fi lls pro-
gressively according to the value re-
quested.
Switching the system off
Avoid driving for long periods
with the air conditioning switched
off (risk of misting and reduction
of the air quality in the cabin). Press the air fl ow
"empty fan"
button of air fl ow 7 until the fan
symbol disappears.
This action switches off all of the func-
tions of the air conditioning system.
Thermal comfort is no longer control-
led. A slight fl ow of air resulting from the
movement of the vehicle, remains per-
ceptible however.
Pressing the air fl ow "full fan" button of
air fl ow 7 or on "AUTO" reactivates the
system with the values set before it was
switched off. Press the
"empty fan" symbol
to decrease the air fl ow.
For maximum cooling or heating
of the cabin, it is possible to go
beyond the minimum 14 or maxi-
mum 28 values.

 Press the blue button 2 until

"LO" is displayed or the red
button 2 until "HI" is displayed. Press this button again or press the

"AUTO" button to resume automatic
management of the intake of air. The air
recirculation symbol 5 is switched off.

1 0
CHECKS
CHECKING LEVELS
Check all of these levels regularly and
top them up if necessary, unless other-
wise indicated.
If a level drops signifi cantly, have the
corresponding system checked by a
CITROËN dealer.
Oil level The reading will only be correct
if the vehicle is on level ground
and the engine has been off for
more than 15 minutes.
The check is carried out either
when the ignition is switched on using
the oil level indicator on the instrument
panel, or using the dipstick.
Between two oil changes, the consump-
tion should not exceed 0.5 litre per
600 miles (1,000 km).
Engine oil change
Refer to the Maintenance and Warranty
Guide for details of the interval for this
operation.
In order to maintain the reliability of the
engine and emission control system,
the use of additives in the engine oil is
prohibited.
Oil grade
The oil must be suitable for your en-
gine and conform to the manufacturer's
recommendations. Brake fluid level
The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.
Changing the fluid
Refer to the Maintenance and Warranty
Guide for details of the interval for this
operation.
Fluid specification
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.
Coolant level The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the
temperature of the coolant is regulated
by the fan. This can operate with the ig-
nition off.

On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may oper-
ate after the vehicle has been switched
off, even if the engine is cold.
In addition, as the cooling system is
pressurised, wait at least one hour after
switching off the engine before carrying
out any work. To avoid any risk of scalding, unscrew
the cap by two turns to allow the pres-
sure to drop. When the pressure has
dropped, remove the cap and top up
the level.
Changing the coolant
The coolant does not have to be
changed.
Fluid specification
The coolant must conform to the manu-
facturer's recommendations.
Screenwash fluid level
Top up the level when necessary.
Fluid specification
For optimum cleaning and to avoid
freezing, this fl uid must not be topped
up or replaced with water.
Take care when carrying out
checks under the bonnet as
some parts of the engine can be
very hot (risk of burns).

11
PRACTICAL INFORMATION
Engine compartment fusebox
The fusebox is placed in the engine
compartment near the battery (left-hand
side).
Access to the fuses

 Unclip the cover.

 Change the fuse (see correspond-
ing paragraph).

 When you have fi nished, close the
cover carefully to ensure the sealing
of the fuse box. Fuse table

Fuse N° Rating Functions

F1 20 A Engine control unit supply, cooling fan unit control
relay, multifunction engine control main relay,
injection pump (Diesel).

F2 15 A Horn.

F3 10 A Front/rear wash-wipe.

F4 20 A Daytime running lamps.

F5 15 A Diesel heater (Diesel), particle fi lter additive pump
(Diesel), air fl ow sensor (Diesel),
EGR electrovalve (Diesel), fuel pump (1.1i and 1.4i), blow-by heater
and electrovalves (VTi).

F6 10 A ABS/ESP control unit, secondary stop switch.

F7 10 A Electric power steering, automatic gearbox.

F8 25 A Starter control.

F9 10 A Switching and protection unit (Diesel).

F10 30 A Fuel heater (Diesel), blow-by heater (1.1i, 1.4i and
Diesel), fuel pump (VTi), injectors and ignition coils
(petrol), electronic thermostat and canister purge
electrovalve (1.1i and 1.4i).

F11 40 A Heater blower.

11
PRACTICAL INFORMATION
We recommend the use of genu-
ine CITROËN towbars and their
harnesses that have been tested
and approved from the design
stage of your vehicle, and that
the fi tting of the towbar is en-
trusted to a CITROËN dealer.
If the trailer is not fi tted by a
CITROËN dealer, it is imperative
that it is fi tted using the electri-
cal pre-equipment installed at
the rear of the vehicle, in accord-
ance with the manufacturer's in-
structions.
TOWING A TRAILER,
A CARAVAN, ETC.
The rear parking assistance will
be deactivated automatically if
a genuine CITROËN towbar is
used.
Towbar suitable for the attachment of a
trailer or caravan with additional lighting
and signalling.
Your vehicle is primarily designed for
transporting people and luggage, but it
may also be used for towing a trailer.
Driving with a trailer subjects the towing
vehicle to more signifi cant stress and its
driver must be particularly careful.
Driving advice
Distribution of loads

 Distribute the load in the trailer so
that the heaviest items are as close
as possible to the axle and the nose
weight approaches the maximum
permitted without exceeding it.
Air density decreases with altitude, thus
reducing engine performance. Above
1 000 metres, the maximum towing load
must be reduced by 10 % and so on for
every 1 000 metres of altitude.
Refer to the "Technical Data" section for
details of the weights and towing loads
which apply to your vehicle.
Side wind

 Take into account the increased
sensitivity to side wind.
Cooling
Towing a trailer on a slope increases
the temperature of the coolant.
As the fan is electrically controlled, its
cooling capacity is not dependent on
the engine speed.

 To lower the engine speed, reduce
your speed. The maximum towing load on a long
slope depends on the gradient and the
ambient temperature.
In all cases, pay attention to the coolant
temperature.

 If the warning lamp and the

STOP warning lamp come
on, stop the vehicle and
switch off the engine as
soon as possible.
Braking
Towing a trailer increases the braking
distance.
Tyres

 Check the tyre pressures of the towing
vehicle and of the trailer, observing the
recommended pressures.
Lighting

 Check the electrical signalling on
the trailer.