2008.5 Citroen C4 DAG maintenance
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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
INSTRUMENT PANEL WITH TRANSLUCENT SCREEN
The instrument panel groups all the driving and comfort information at the centre of the dashboard.
Central display
1. Rev counter
2. Cruise control or speed limiter
setting
3. Speedometer
4. Maintenance indicator when the
ignition is switched on, then total
mileage recorder
5. Trip mileage recorder
6. Fuel gauge
7. Engine oil level check
8. Coolant temperature Control buttons
A. Trip mileage recorder reset
B. Lighting rheostat
C. Display of alerts and Status of
functions
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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.
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 fas-
tened:
- The warning lamp comes on if the driver's seat belt is not fastened
when the ignition is switched on
and between 0 and 20 km/h (ap-
prox. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied by an audible signal.
It then remains on.
Front passenger and rear passen-
ger 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 20 km/h (approx. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied 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.
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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.
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 fas-
tened:
- The warning lamp comes on if the driver's seat belt is not fastened
when the ignition is switched on
and between 0 and 20 km/h (ap-
prox. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied by an audible signal.
It then remains on.
Front passenger and rear passen-
ger 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 20 km/h (approx. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied 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.
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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.
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 fas-
tened:
- The warning lamp comes on if the driver's seat belt is not fastened
when the ignition is switched on
and between 0 and 20 km/h (ap-
prox. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied by an audible signal.
It then remains on.
Front passenger and rear passen-
ger 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 20 km/h (approx. 12 mph).
- Above 20 km/h (approx. 12 mph), 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, ac-
companied 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.
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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
Maintenance indicator zero reset Engine oil level indicator
After each service, the maintenance
indicator must be reset to zero.
Your CITROËN technician resets the
indicator to zero after each service.
However, if you do your own serv-
icing, the procedure for resetting to
zero is as follows:
switch off the ignition,
press and hold the trip distance
recorder zero reset button,
switch on the ignition; the dis-
tance recorder display begins a
countdown,
when the display indicates "=0" ,
release the button; the spanner
disappears. System which informs the driver
whether the engine oil level is cor-
rect or not.
This information is displayed for a
few seconds when the ignition is
switched on, after the service infor-
mation.
The level read will only be correct if
the vehicle is on level ground and
the engine has been off for more
than 15 minutes.
Oil level correct
Oil level low
T h i s i s i n d i c a t e d b y t h e fl a s h i n g o f
"OIL" , accompanied by an audible
signal and a message on the multi-
function screen.
I f t h e l o w o i l l e v e l i s c o n fi r m e d b y a
check using the dipstick, it is essen-
tial that the level is topped up to pre-
vent damage to the engine. Oil level gauge fault
T h i s i s i n d i c a t e d b y t h e fl a s h i n g o f
"OIL --" . Contact a CITROËN dealer.
Dipstick
Refer to the "Checks" section to lo-
c a t e t h e d i p s t i c k a n d t h e o i l fi l l e r c a p
on your engine. There are 2 marks on
the dipstick:
- A = max; never ex-
ceed this level,
- B = min; top up the
l e v e l v i a t h e o i l fi l l e r
cap, using the type
of oil suited to your
engine.
Following this operation, if you wish
to disconnect the battery, lock the
v e h i c l e a n d w a i t a t l e a s t fi v e m i n u t e s
for the zero reset to be taken into ac-
count.
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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 win-
dows closed.
If after a lengthy stop in bright sun-
light the interior temperature is ex-
cessive, ventilate the passenger
compartment by opening the win-
dows 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 mainte-
nance schedule (see "Maintenance
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
and thumbwheels to adjust the air
fl o w a n d d i r e c t i o n ( u p - d o w n , r i g h t - l e f t ) .
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
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C H E C K S
RUNNING OUT OF FUEL (DIESEL)
HDi 135 and 140 engine
Detach the protection cover to gain
access to the priming pump. HDi 90 and 110 engine
Detach the protection cover to gain
access to the priming pump. Priming the fuel circuit
In the event of running out of fuel:
a f t e r fi l l i n g ( m i n i m u m 5 l i t r e s ) ,
action the manual priming pump,
until some resistance is felt,
then action the starter, gently
pressing the accelerator until the
engine starts.
I f t h e e n g i n e f a i l s t o s t a r t a t t h e fi r s t
attempt, wait 15 seconds before try-
ing again.
If the engine fails to start after a few
attempts, repeat the procedure from
the beginning. When the engine is
idling, accelerate gently to complete
the purge of the circuit.
HDi engines are of a highly
technical nature.
All maintenance and repairs re-
q u i r e s p e c i fi c q u a l i fi c a t i o n s w h i c h
only your CITROËN dealer can
guarantee.
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C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and in relation to your en-
gine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not re-
quire any maintenance.
However, check that the
terminals are clean and
correctly tightened, partic-
ularly in summer and winter.
When carrying out work on the bat-
t e r y , r e f e r t o t h e " P r a c t i c a l i n f o r -
mation" section for details of the
precautions to be taken before dis-
connecting the battery and following
its reconnection. Air filter and passenger
compartment filter
Refer to the Maintenance
and Warranty Guide for
details of the replacement
intervals for these compo-
nents.
Depending on the environment (e.g.
dusty atmosphere) and the use of the
vehicle (e.g. city driving), replace them
twice as often if necessary (refer to
the "Engines" paragraph).
A clogged passenger compartment
fi l t e r m a y h a v e a n a d v e r s e e f f e c t o n
the performance of the air condition-
ing system and generate undesirable
odours.
Oil filter
R e p l a c e t h e o i l fi l t e r e a c h
time the engine oil is
changed. Particulate filter system
(Diesel)
Complementary to the catalytic
c o n v e r t e r , t h i s fi l t e r m a k e s a n a c -
tive contribution to the preservation
of air quality by the retaining of the
unburnt pollutant particles. Black
exhaust fumes are thus no longer
emitted.
After prolonged idling or driving at very
low speeds, you may occasionally no-
tice water vapour being emitted from
the exhaust when accelerating. This is
of no consequence to the running of
the vehicle or to the environment.
If there is risk of clogging, a mes-
sage appears on the multifunction
screen, accompanied by a sound
signal and lighting of the service
warning lamp.
This alert tells you that the particle
fi l t e r i s s t a r t i n g t o fi l l u p ( i n c o n d i t i o n s
of urban driving of exceptionally long
d u r a t i o n : l o w s p e e d s , t r a f fi c j a m s
etc.)
T o r e g e n e r a t e t h e fi l t e r , i t i s a d v i s e d
to drive as soon as possible, when
t r a f fi c c o n d i t i o n s p e r m i t , a t a s p e e d
of 40 mph (around 60 km/h) or
m o r e f o r a t l e a s t fi v e m i n u t e s ( u n t i l
the alert message disappears).
If this alert persists, consult a CITROËN
dealer.
Refer to the Maintenance and
Warranty Guide for details of the
replacement interval for this compo-
nent.