2009.5 Citroen C4 PICASSO engine coolant

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I
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 display of an-
other warning lamp :
Service If this comes on, it in-
dicates the occurrence
of a problem in one
of the systems which
does not have a specifi c warning
lamp.
In order to identify it, consult the mes-
sage on the multifunction screen.
The warning lamp 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 lamp 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
lamp),
stop the vehicle immediately and as
safely as possible.
Consult a CITROËN dealer.
Application/Release of the
automatic electric 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
section "Driving - § Electric parking
brake"). Automatic electric parking brake
fault
This warning lamp comes
on if there is a malfunction in
the automatic electric park-
ing brake.
Deactivation of the automatic
functions of the automatic
electric parking brake
This comes on if the "auto-
matic application" and "auto-
matic 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 indicates
the occurrence of a fault in the ESP/
ASR system or in the hill start assist
system.
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 oc-
currence of a fault in the emission
control 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 sys-
tem.
However, this does not prevent op-
eration of the vehicle’s assisted
braking.
* According to country.

161
X
C H E C K S
PETROL ENGINES
The covers and caps allow you access for checking the level of the various fl uids and for replacing certain components.

1. Screenwash and headlamp wash
reservoir.

2. Coolant header tank.
3. Brake fl uid reservoir.

4. Battery/Fuses.

5. Fuse box.
6. Engine oil dipstick.

7. Engine oil fi ller cap.

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X
C H E C K S * According to engine.
DIESEL ENGINES
The covers and caps allow you access for checking the level of the various fl uids, for replacing certain components and
for repriming the fuel.

1. Screenwash and headlamp
wash reservoir.

2. Coolant header tank.

3. Brake fl uid reservoir.

4. Battery/Fuses.
5. Fuse box.

6. Engine oil dipstick.

7. Engine oil fi ller cap.

8. Priming pump * .

9. Degas screw * . As the diesel circuit is pres-
surised, any work on this
circuit is prohibited.

163
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.
Take care when working under the
bonnet, as some parts of the engine
can be extremely hot (risk of burns).
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 manufacturer'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
Coolant change
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.
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 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 allow
the pressure to drop. When the pres-
sure 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.