coolant temperature Citroen C4 PICASSO DAG 2009 1.G Owner's Manual

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I N S T R U M E N T S a n d C O N T R O L S
Lighting is associated
with the displaying of
another warning light:
Service If this comes on, it indi-
cates the occurrence of
a problem in one of the
systems which does
not have a specifi c warning light.
In order to identify it, consult the
message on the multifunction dis-
play.
The warning light only comes on
temporarily in the case of the follow-
ing minor faults:
- incorrect closing of the doors, boot, rear screen and bonnet,
- fl at remote control battery,
- incorrect tyre pressure,
- the end of saturation of the parti- cle emission fi lter (Diesel).
In the case of major faults, the
warning light remains on until the
operating fault is rectifi ed, contact
a CITROËN dealer as soon as
possible. Braking
If this comes on, it indicates
the occurrence of a fault in
one of the braking systems:
- signifi cant drop in the level in the circuit,
- electronic brake force distribu- tion (EBFD) faulty (simultane-
ous lighting of the ABS warning
light),
stop the vehicle immediately and as
safely as possible.
Consult a CITROËN dealer.

Application/Release of the
automatic electronic parking
brake If this warning lamp comes
on permanently, it is confi rm-
ing that the parking brake is
applied.
If it fl ashes, it is indicating an ap-
plication or release fault. Contact a
CITROËN dealer urgently (see sec-
tion "Driving - § Electronic parking
brake"). Automatic electronic parking
brake fault
This warning lamp comes
on if there is a malfunction
in the automatic electronic
parking brake.
Deactivation of the automatic
functions of the automatic
electronic parking brake
This comes on if the "auto-
matic application" and "au-
tomatic release" functions
when you switch off the
engine are deactivated * or
faulty.
Dynamic stability control
(ESP/ASR). The ESP/ASR system is put
into service automatically
when the vehicle is started.
Unless the system has been deactivated, if
this warning lamp and the indicator lamp on
the button come on continuously, this indi-
cates the occurrence of a fault in the ESP/
ASR system or in the hill start assistance.
Engine autodiagnostics
system If this comes on, it indicates
the occurrence of a fault in
the engine management
system.
If it fl ashes, it indicates the occur-
rence of a fault in the emission con-
trol system.
Central alert
- punctured wheel,
- braking,
- coolant temperature,
stop the vehicle immediately and as
safely as possible.
Consult a CITROËN dealer.
Anti-lock braking system (ABS) If this comes on, it indicates
the occurrence of a fault in
the anti-lock braking system.
However, this does not pre-
vent operation of the vehicle's as-
sisted braking.
* According to country.

30
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I N S T R U M E N T S a n d C O N T R O L S Airbags If this comes on, it indicates
the occurrence of a fault in
one of the airbag 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 as soon as
it is safe to do so.
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 approximately 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
left of the steering wheel allows you
to open the fuel fl ap from inside the
vehicle.
Battery charge If this comes on, it indi-
cates the occurrence of a
fault in the battery charging
circuit (dirty or loose termi-
nals, 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 lamp comes on continuously.
- if the speed is higher than 6 mph (10 km/h), this warning lamp comes on
continuously, accompanied by an audi-
ble 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 unfastened
lights up between 0 and 20 km/h.
Above 20 km/h (approx. 12 mph),
it fl ashes accompanied by an audi-
ble signal for around 120 seconds.
The audible 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 be-
tween 0 and 20 km/h. Above
20 km/h (approx.12 mph), it
fl ashes accompanied by a mes-
sage on the multifunction screen
and an audible signal for around
120 seconds.
Second row rear passengers’ or
front passenger’s seat belt not fas-
tened 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.

161
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 system checked by a
CITROËN dealer.
Oil level
Oil change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation. Oil specifi cation
The oil must correspond to your en-
gine and conform to the manufactur-
er's recommendations.
Brake fluid level
Fluid change
Refer to the Maintenance and
Warranty Guide for details of the in-
terval for this operation.
This fl uid must be changed regu-
larly. Fluid which has been used for
too long 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 system
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 temperature of the coolant is
regulated by the fan. This can oper-
ate 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 en-
gine 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, un-
screw the cap by two turns to al-
low the pressure to drop. When the
pressure has dropped, remove the
cap and top up the level.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.