cooling Citroen C4 PICASSO 2008.5 1.G Owner's Manual

30
I
I N S T R U M E N T S a n d C O N T R O L S Air bags If this comes on, it indicates
the occurrence of a fault in
one of the air bag or seat
belt pretensioner systems.
Maximum coolant temperature
If this comes on, it indicates
that the temperature in the
cooling system is too high.
Stop the vehicle immediately
and as safely as possible.
Low fuel level When the tank is full, all the
bars are lit up.
If the fuel low warning lamp
comes on accompanied by
an audible signal and a message on
the multifunction screen, there are ap-
proximately 7 litres of fuel remaining
in the tank and 2 or 3 bars fl ash in
the instrument panel.
When the last bar goes out, there
are approximately 2 litres of fuel
remaining in the tank.
A control located on the panel to the
right of the steering wheel allows
you to open the fuel fl ap from inside
the vehicle.
Battery charge
If this comes on, it indicates
the occurrence of a fault in
the battery charging circuit
(dirty or loose terminals, slack
or cut alternator belt, ...). Door open
A door, the boot or the rear
screen is open:
-
if the speed is below 6 mph (10 km/h), this
warning light comes on continuously.
- if the speed is higher than 6 mph (10 km/h), this warning light comes on continuously,
accompanied by an audible signal.
Seat belt not fastened/
unfastened
This warning lamp informs
you if the driver’s or front
passenger’s seat belt is
not fastened (depending
on model), and if the front
passenger’s (depending on
model) or the second row
passengers’ seat belts are
unfastened. The lit up positions rep-
resent those whose seat belts are
not fastened/unfastened. Seat belts unfastened during the
journey:
- the point corresponding to the
seat position with seat belt un-
fastened lights up between 0 and
20 km/h. Above 20 km/h (approx.
12 mph), it fl ashes accompanied
by a sound signal for around
120 seconds. The sound signal
stops when the ignition is switched
off or if a door is opened.
Depending on model, the front pas-
senger seat may be fi tted with a
presence sensor; the correspond-
ing warning lamp will only come on
if the seat is occupied and the seat
belt not fastened.
Driver’s or front passenger’s seat belt
not fastened with presence sensor:
-
the warning lamp lights up between
0 and 20 km/h. Above 20 km/h
(approx.12mph), it fl ashes accom-
panied by a message on the multi-
function screen and a sound signal
for around 120 seconds
.
Rear passengers’ or front passen-
ger’s seat belt not fastened without
presence sensor:
-
when the ignition is switched on, the
points corresponding to the seat po-
sitions with seat belts not fastened
remain lit up for 30 seconds.

162
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
If a level drops signifi cantly, have the
corresponding circuit checked by a
CITROËN dealer.
Oil level
Draining the engine
Refer to the servicing booklet for
details of the interval for this opera-
tion. Oil specifi cation
The oil must correspond to your
engine and conform to the manufac-
turer's recommendations.
Brake fluid level
Draining the circuit
Refer to the servicing booklet for
details of the interval for this opera-
tion.
This fl uid must be changed regularly.
Fluid which has been used exces-
sively may cause a loss of braking
effi ciency.
Fluid specifi cation
The brake fl uid must conform to the
manufacturer's recommendations
and fulfi l the DOT4 standards.
Coolant level
Draining the circuit
The coolant does not have to be
changed.
Fluid specifi cation
The coolant must conform to the
manufacturer's recommendations.
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 con-
sumption should not exceed 0.5 litre
per 600 miles (approx. 1 000 km).
Check this level also between each
scheduled service and before long
journeys. The brake fl uid level should
be close to the "MAX" mark.
If it is not, check the brake
pad wear.
The coolant level should be
close to the "MAX" mark but
should never exceed it.
When the engine is warm, the tem-
perature of the coolant is regulated
by the fan. This can operate with the
ignition off.

On vehicles which are fi tted with
a particle emission fi lter, the fan
may operate 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 pressure to drop. When
the pressure has dropped, remove
the cap and top up the level.
In order to maintain the
reliability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.

189
XI
P R A C T I C A L I N F O R M A T I O N
TOWING A TRAILER, A CARAVAN, ETC.
Towbar suited to the attachment of a
trailer or caravan with additional sig-
nalling and lighting.
Your vehicle is primarily designed
for transporting people and luggage,
but it may also be used for towing a
trailer. We recommend the use of original
CITROËN towbars and their har-
nesses that have been tested and
approved from the design stage
of your vehicle, and that the fi t-
ting of the towbar is entrusted 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 electrical
pre-equipment installed at the rear
of the vehicle, in accordance with
the manufacturer's instructions. 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 ex-
ceeding 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 me-
tres 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.
 To lower the engine speed, re-
duce your speed.
The maximum towing load on a long
slope depends on the gradient and
the outside temperature.
In all cases, pay attention to the
coolant temperature.

 If the warning light and
the STOP warning light
come on, stop the vehicle
and switch off the engine
as soon as possible.
Braking
Towing a trailer increases the brak-
ing distance.
Tyres

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

 Check the electrical signalling on
the trailer.
The rear parking assistance will
be deactivated automatically if an
original CITROËN towbar is used.
Driving with a trailer subjects the
towing vehicle to more signifi cant
stress and its driver must be particu-
larly careful.
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.