maintenance CITROEN C4 2007 Owners Manual (279 Pages)

23
I
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

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),
the warning lamp ﬂ ashes for approxi-
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), the warning lamp ﬂ ashes for ap-
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.

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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.
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 correct
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
This is indicated by the ﬂ ashing of

"OIL" , accompanied by an audible
signal and a message on the multi-
function screen.
If the low oil level is conﬁ rmed by a
check using the dipstick, it is essential
that the level is topped up to prevent
damage to the engine. Oil level gauge fault
This is indicated by the ﬂ ashing of

"OIL --" . Contact a CITROËN dealer.
Dipstick
Refer to the "Checks" section to
locate the dipstick and the oil ﬁ ller
cap on your engine. There are 2 marks on
the dipstick:
- A = max; never ex-
ceed this level,
- B = min; top up the
level via the oil ﬁ ller
cap, using the type
of oil suited to your
engine.
Following this operation, if you wish
to disconnect the battery, lock the
vehicle and wait at least ﬁ ve minutes
for the zero reset to be taken into ac-
count.

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)
There is a ﬁ lter for excluding odours
and dust.
This ﬁ lter has to be changed in ac-
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.
For optimum operating efﬁ ciency,
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 ow
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

126
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:

 after ﬁ lling (minimum 5 litres),
squeeze the manual priming
pump repeatedly, until some re-
sistance is felt,

 then operate the starter, gently
pressing the accelerator until the
engine starts.
If the engine fails to start at the ﬁ rst
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 re-
pairs require speciﬁ c qualiﬁ cations
which only your CITROËN dealer
can guarantee.

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.
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 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.
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 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, 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.

131
X
C H E C K S
CHECKS
Unless otherwise indicated, check
these components in accordance
with the Maintenance and Warranty
Guide and according to your engine.
Otherwise, have them checked by a
CITROËN dealer.
Battery The battery does not require
any maintenance.
However, check that the
terminals are clean and
correctly tightened, particu-
larly in summer and winter.
When carrying out work on the bat-
tery, refer to the "Practical information"
section for details of the precautions
to be taken before disconnecting 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 cabin ﬁ lter may have an
adverse effect on the performance
of the air conditioning system and
generate undesirable odours.
Oil filter
Replace the oil ﬁ lter each
time the engine oil is
changed. Particle filter system (Diesel)
Complementary to the catalytic
converter, this ﬁ lter makes an ac-
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 an audible
signal and lighting of the service
warning lamp.
This alert tells you that the particle
ﬁ lter is starting to ﬁ ll up (in conditions
of urban driving of exceptionally long
duration: low speeds, trafﬁ c jams
etc.)
To regenerate the ﬁ lter, it is advised
to drive as soon as possible, when
trafﬁ c conditions permit, at a speed
of 40 mph (around 60 km/h) or
more for at least ﬁ ve minutes (until
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 component.

132
X
C H E C K S
Brake pads Brake wear depends on
the style of driving, par-
ticularly in the case of ve-
hicles used in town, over
short distances. It may be
necessary to have the condition of
the brakes checked, even between
vehicle services.
Unless there is a leak in the circuit, a
drop in the brake ﬂ uid level indicates
that the brake pads are worn.
Manual gearbox
The gearbox does not re-
quire any maintenance (no
oil change).
6-speed electronic gearbox
system The gearbox does not re-
quire any maintenance (no
oil change).
Automatic gearbox The gearbox does not re-
quire any maintenance (no
oil change). Brake disc wear
For information relating to
checking the brake disc
wear, contact a CITROËN
dealer.
Parking brake If a loss of effectiveness
of this system is noticed,
the parking brake must be
checked, even between
two services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent quality
and speciﬁ cations.
In order to optimise the operation
of units as important as the braking
system, CITROËN selects and of-
fers very speciﬁ c products.
To avoid damaging the electrical
units, the use of a high pressure
washer in the engine compartment
is strictly prohibited .
Refer to the Maintenance and
Warranty Guide for the details of the
level checking interval for this com-
ponent.
Refer to the Maintenance and
Warranty Guide for details of the
checking interval for this component.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this com-
ponent.

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