2009 Citroen C4 maintenance schedule
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27
I
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.
Door open
A door, the boot or the bonnet
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, accom-
panied by an audible signal. Seat belt not fastened/
unfastened
Driver's seat belt not fastened:
-
The warning lamp comes on if the
driver’s seat belt is not fastened
when the ignition is switched on and
between 0 and 12 mph (approx.
20 km/h).
- Above 12 mph (approx. 20 km/h),
t h e w a r n i n g l a m p fl a s h e s f o r a p p r o x i -
mately 120 seconds, accompanied by
an audible signal. It then remains on.
Front passenger and rear passenger
seat belts not fastened:
- When the ignition is switched on, the warning lamp always comes
on if the passenger's seat belt is
not fastened.
It goes off when the engine is running,
doors closed and after 30 seconds.
- If a seat belt is unfastened, the warning lamp comes on between 0
and 12 mph (approx. 20 km/h).
- Above 12 mph (approx. 20 km/h), t h e w a r n i n g l a m p fl a s h e s f o r a p -
proximately 120 seconds, accom-
panied by an audible signal. Maintenance indicator
System which informs the driver
when the next service is due, in ac-
cordance with the manufacturer’s
servicing schedule.
The point at which the service is due
is calculated from the last indicator
zero reset. It is determined by two
parameters:
- the distance travelled,
- the time elapsed since the last
service.
Page 11 of 279
27
I
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.
Door open
A door, the boot or the bonnet
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, accom-
panied by an audible signal. Seat belt not fastened/
unfastened
Driver's seat belt not fastened:
-
The warning lamp comes on if the
driver’s seat belt is not fastened
when the ignition is switched on and
between 0 and 12 mph (approx.
20 km/h).
- Above 12 mph (approx. 20 km/h),
t h e w a r n i n g l a m p fl a s h e s f o r a p p r o x i -
mately 120 seconds, accompanied by
an audible signal. It then remains on.
Front passenger and rear passenger
seat belts not fastened:
- When the ignition is switched on, the warning lamp always comes
on if the passenger's seat belt is
not fastened.
It goes off when the engine is running,
doors closed and after 30 seconds.
- If a seat belt is unfastened, the warning lamp comes on between 0
and 12 mph (approx. 20 km/h).
- Above 12 mph (approx. 20 km/h), t h e w a r n i n g l a m p fl a s h e s f o r a p -
proximately 120 seconds, accom-
panied by an audible signal. Maintenance indicator
System which informs the driver
when the next service is due, in ac-
cordance with the manufacturer’s
servicing schedule.
The point at which the service is due
is calculated from the last indicator
zero reset. It is determined by two
parameters:
- the distance travelled,
- the time elapsed since the last
service.
Page 12 of 279
27
I
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.
Door open
A door, the boot or the bonnet
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, accom-
panied by an audible signal. Seat belt not fastened/
unfastened
Driver's seat belt not fastened:
-
The warning lamp comes on if the
driver’s seat belt is not fastened
when the ignition is switched on and
between 0 and 12 mph (approx.
20 km/h).
- Above 12 mph (approx. 20 km/h),
t h e w a r n i n g l a m p fl a s h e s f o r a p p r o x i -
mately 120 seconds, accompanied by
an audible signal. It then remains on.
Front passenger and rear passenger
seat belts not fastened:
- When the ignition is switched on, the warning lamp always comes
on if the passenger's seat belt is
not fastened.
It goes off when the engine is running,
doors closed and after 30 seconds.
- If a seat belt is unfastened, the warning lamp comes on between 0
and 12 mph (approx. 20 km/h).
- Above 12 mph (approx. 20 km/h), t h e w a r n i n g l a m p fl a s h e s f o r a p -
proximately 120 seconds, accom-
panied by an audible signal. Maintenance indicator
System which informs the driver
when the next service is due, in ac-
cordance with the manufacturer’s
servicing schedule.
The point at which the service is due
is calculated from the last indicator
zero reset. It is determined by two
parameters:
- the distance travelled,
- the time elapsed since the last
service.
Page 29 of 279
42
III
C O M F O R T
Air conditioning
To ensure that your system operates
correctly, it is recommended to have
it checked regularly.
Water arising from condensation
in the air conditioning drains away
through a hole provided for this pur-
pose. A pool of water may thus form
under the vehicle when stationary.
To keep the air conditioning com-
pressor well sealed, it is essential to
operate the air conditioning at least
once in every month.
Regardless of the season, the air
conditioning is useful, since it re-
moves humidity and condensation.
To be effective, the air conditioning
should only be used with the windows
closed.
If after a lengthy stop in bright sunlight
the interior temperature is excessive,
ventilate the passenger compartment
by opening the windows for a few
moments, then close them again.
The air conditioning operates by using
power from the engine. This results in
a slight increase in fuel consumption.
Dust filter/Odour filter
(active carbon)
T h e r e i s a fi l t e r f o r e x c l u d i n g o d o u r s
and dust.
T h i s fi l t e r h a s t o b e c h a n g e d i n a c -
cordance with the vehicle servicing
schedule (see "Maintenance and
Warranty Guide").
Air circulation
Maximum comfort is obtained when
there is a good distribution of air in
the passenger compartment, both in
the front and in the rear.
F o r o p t i m u m o p e r a t i n g e f fi c i e n c y ,
take care not to obstruct the air out-
lets under the front seats.
Air vents
The face-level air vents have grilles
a n d t h u m b w h e e l s t o a d j u s t t h e a i r fl o w
and direction (up-down, right-left).
The automatic regulation of the air
conditioning, inside the cabin, uses
the sunlight sensor located on the
dashboard behind the instrument
panel.
Be careful not to obstruct it.
Sensor
Page 133 of 279
129
X
C H E C K S
CHECKING LEVELS
Check all of these levels regularly
and top them up if necessary, unless
otherwise indicated.
I f a l e v e l d r o p s s i g n i fi c a n t l y , h a v e t h e
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. O i l s p e c i fi c a t i o n
The oil must correspond to your engine
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.
T h i s fl u i d m u s t b e c h a n g e d r e g u -
larly. Fluid which has been used for
too long may cause a loss of braking
e f fi c i e n c y .
F l u i d s p e c i fi c a t i o n
T h e b r a k e fl u i d m u s t c o n f o r m t o t h e
manufacturer's recommendations and
f u l fi l t h e D O T 4 s t a n d a r d s .
Coolant level
Draining the system
The coolant does not have to be
changed.
F l u i d s p e c i fi c a t i o n
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. T h e b r a k e fl u i d l e v e l s h o u l d
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.
O n v e h i c l e s w h i c h a r e fi t t e d w i t h
a p a r t i c l e e m i s s i o n fi l t e r , t h e f a n
may operate after the vehicle has
b e e n s w i t c h e d o f f , e v e n i f t h e e n -
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, 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.
In order to maintain the re-
liability of the engine and
emission control system,
the use of additives in the engine
oil is prohibited.