cooling CITROEN C3 PICASSO 2010 Owners Manual

1
29
MONITORING


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 or qualifi ed workshop.




Engine oil
pressure


fi xed. There is a fault with the
engine lubrication system. You must stop as soon it is safe to do so.
Park, switch off the ignition and contact a
CITROËN dealer or a qualifi ed workshop.




Battery
charge


fi xed. The battery charging circuit
has a fault (dirty or loose
terminals, slack or cut
alternator belt, ...). The warning lamp should go off when the engine
is started.
If it does not go off, contact a CITROËN dealer or
a qualifi ed workshop.





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
45
COMFORT
VENTILATION
System which creates and maintains
comfortable conditions in the vehicle's
passenger compartment.
Air flow paths
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
increase or reduce the speed of the
ventilation fan.

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.


Control panel

The controls of this system are grouped
together on control panel A
on the centre
console. Depending on the model, the
functions offered are:


- the level of comfort required,

- air fl ow,

- air distribution,

- demisting and defrosting,

- manual or digital air conditioning
controls.


Air distribution



1.
Windscreen demisting or defrosting
vents.

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

3.
Side adjustable air vents.

4.
Central adjustable air vents.

5.
Air outlets to the front footwells.

6.
Air outlets to the rear footwells.

3
50
COMFORT

Manual operation

If you wish, you can make a different
choice from that offered by the system by
changing a setting. The other functions
will still be controlled automatically.


)
Pressing the "AUTO"
button returns
the system to completely automatic
operation.


)
Press this button to switch
off the air conditioning.
6. Air distribution adjustment


)
Press one or more buttons to
direct the air fl ow towards:

7. Air fl ow adjustment


)
Turn this control to the left
to decrease the air fl ow or
to the right to increase the
air fl ow.

8. Air intake/Air recirculation


Switching the system off



)
Turn the air fl ow control to the left until
all of the indicator lamps go off.
This action switches off the air condi-
tioning and the ventilation.
Temperature related comfort is no lon-
ger guaranteed but a slight fl ow of air,
due to the movement of the vehicle, can
still be felt.


)
Turn the air fl ow dial to the right or
press the "AUTO"
button to reacti-
vate the system with the values set
before it was switched off.


)
Press this button for recir-
culation of the interior air.
The indicator lamp in the
button comes on.
5. Air conditioning On/Off

Avoid prolonged operation in inte-
rior air recirculation mode or driving
for long periods with the system off
(risk of condensation and deterio-
ration of the air quality).



- the windscreen and side windows
(demisting or defrosting),

- the windscreen, the side windows and
the vents,

- the windscreen, the side windows, the
vents and the footwells,


- the vents and the footwells,

- the vents,

- the footwells,

- the windscreen, the side windows
and the footwells.


The air fl ow indicator lamps, between
the two fans, come on progressively in
relation to the value requested.

)
As soon as possible, press this but-
ton again to permit the intake of out-
side air and prevent the formation
of condensation. The indicator lamp
on the button switches off.

For maximum cooling or heating
of the passenger compartment,
it is possible to exceed the mini-
mum value 14 or the maximum
value 28.


)
Turn control 2
or 3
to the left
until "LO"
is displayed or
to the right until "HI"
is dis-
played.
9. Mono-zone/Dual-zone


)
Press this button to equalise
the comfort value on the
passenger's side with that
on the driver's side (mono
zone). The indicator lamp in
the button comes on.


Air recirculation enables the passenger
compartment to be isolated from exte-
rior odours and smoke. Switching the system off could result in
discomfort (humidity, condensation).


)
Press this button again to return to
automatic operation of the air con-
ditioning. The indicator lamp in the
"A/C"
button comes on.

10
130
CHECKS
CHECKING LEVELS
Brake fluid level

Oil level
The reading will only be correct if the
vehicle is on level ground and the
engine has been off for more than
30 minutes.
The check is carried out either when the ignition
is switched on using the oil level indicator in the
instrument panel, or using the dipstick.
The brake fl uid level should be
close to the "MAX" mark. If it is
not, check the brake pad wear.

Changing the fl uid
Refer to the servicing booklet for details
of the interval for this operation.
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
ignition off.

On vehicles which are fi tted with a par-
ticle emission fi lter, the fan may operate
after the vehicle has been switched off,
even if the engine is cold.
Fluid specifi cation
For optimum cleaning and to avoid
freezing, this fl uid must not be topped
up or replaced with plain water.


Engine oil change
Refer to the servicing booklet 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 engine
and conform to the manufacturer's
recommendations.


Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations and
meet the DOT4 standard.

Fluid specifi cation
The coolant must conform to the manu-
facturer's recommendations.

Changing the coolant

The coolant does not have to be changed.


Screenwash fluid level

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 or a qualifi ed work-
shop. 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.
Top up the level when necessary.
Take care when carrying out
checks under the bonnet as
some parts of the engine can be
very hot (risk of burns).


It is normal to top up the engine oil
between services. CITROËN rec-
ommends that you check the oil
level and top up if necessary, every
3 000 miles (5 000 kilometres).

11
152
PRACTICAL INFORMATION


Fuse N°



Rating


Functions



F1



20 A

Engine control unit supply, cooling fan unit control, multifunction engine control main
relay.


F2



15 A

Horn.


F3



10 A

Front/rear wash-wipe.


F4



20 A

Daytime running lamps.


F5



15 A

Diesel fuel heater (Diesel engine), fuel pump (petrol engine)


F6



10 A

ABS/ESP control unit, ABS/ESP cut-off relay, secondary stop switch.


F7



10 A

Electrical power steering.


F8



25 A

Starter control.


F9



10 A

Switching and protection unit (Diesel).


F10



30 A

Diesel engine injection pump valve, injectors and ignition coils (petrol engine)


F11



40 A

Air conditioning fan.
Fuse table

11
PRACTICAL INFORMATION


Fuse N°



Rating


Functions



F12



30 A

Windscreen wipers slow/fast speed.


F13



40 A

Built-in systems interface supply (ignition positive).


F14



30 A

Valvetronic supply (petrol).


F15



10 A

Right-hand main beam headlamp.


F16



10 A

Left-hand main beam headlamp.


F17



15 A

Left-hand dipped headlamp.


F18



15 A

Right-hand dipped headlamp.


F19



15 A

Multifunction engine control supply (petrol engine),
air cooling electrovalves (Diesel).


F20



10 A

Multifunction engine control supply (petrol engine),
Turbo pressure regulation valve (Diesel), engine
coolant level detector (Diesel).


F21



5 A

Fan assembly control supply, APC, ABS ESP
relays.

11
154
PRACTICAL INFORMATION

Table of maxi-fuses


Fuse N°



Rating


Functions



MF1 *



60 A

Cooling fan assembly.


MF2 *



30 A

ABS/ESP control unit.


MF3 *



30 A

ABS/ESP control unit.


MF4 *



60 A

Built-in Systems Interface (BSI) supply.


MF5 *



60 A

Built-in Systems Interface (BSI) supply.


MF6 *



-

Not used.


MF7 *



-

Dashboard fusebox.


MF8 *



-

Not used.

*
The maxi-fuses provide additional protection for the electrical systems. All work on the maxi-fuses must be carried out by a
CITROËN dealer or a qualifi ed workshop.

11
160
PRACTICAL INFORMATION
TOWING A TRAILER, ...
Your vehicle is primarily designed for
transporting people and luggage, but it
may also be used for towing a trailer.
Driving advice
The maximum towed load on a long in-
cline depends on the gradient and the
ambient temperature.
In all cases, keep a check on the coolant
temperature.

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.
Braking
Towing a trailer increases the braking
distance.
To avoid overheating of the brakes on a
long mountain type of descent, the use
of engine braking is recommended.

Tyres


)

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



Lighting


)
Check the electrical lighting and sig-
nalling on the trailer.
The rear parking sensors will
be deactivated automatically if
a genuine CITROËN towbar is
used.


)
If the warning lamp and the
STOP
warning lamp come
on, stop the vehicle and
switch off the engine as
soon as possible.

Towbar suitable for the attachment of a
trailer with additional lighting and sig-
nalling.

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 towed load
must be reduced by 10 % for every
1 000 metres of altitude.
Refer to the "Technical Data" section for
details of the weights and towed loads
which apply to your vehicle. Driving with a trailer places greater de-
mands on the towing vehicle and the
driver must take particular care.
We recommend the use of gen-
uine 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 tow-
bar is entrusted to a CITROËN
dealer or a qualifi ed workshop.
If the towbar is not fi tted by a
CITROËN dealer, it is impera-
tive that it is fi tted in accordance
with the vehicle manufacturer's
instructions.