2008.5 Citroen C4 Owner's Manual

132
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 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-
tery, refer to the "Practical infor-
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 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. Particulate 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 audi-
ble signal and lighting of the serv-
ice warning lamp.
This alert tells you that the particle
fi lter is starting to fi ll up (in condi-
tions of urban driving of excep-
tionally 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.

133
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 the parking brake travel is
too long or if a loss of effec-
tiveness of this system is
noticed, the parking brake
must be adjusted, even be-
tween two services.
This system must be checked by a
CITROËN dealer. Only use products recom-
mended by CITROËN or
products of equivalent qual-
ity 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 compo-
nent.
Refer to the Maintenance and
Warranty Guide for details of the
level checking interval for this
component.

134
XI
P R A C T I C A L I N F O R M A T I O N
CHANGING A WHEEL
Access to the tools
The tools are located in the boot,
under the fl oor.
To gain access to them:

 open the boot,

 lift the fl oor,

 unclip and remove the box con-
taining the tools. List of tools
All of these tools are specifi c to your
vehicle. Do not use them for other
purposes.

1. Wheelbrace

2. Centring guide

3. Tool for removing/refi tting wheel
bolts

4. Jack with handle

5. Removable towing ring

6. Tool for bolt protectors on alu-
minium wheels Access to the spare wheel
The spare wheel is installed in the
boot, under the fl oor.
Removing the wheel

 Undo the yellow central screw by
a quarter turn.

 Raise the spare wheel towards
you rearwards.

 Remove the wheel from the boot
space.

134
XI
P R A C T I C A L I N F O R M A T I O N
CHANGING A WHEEL
Access to the tools
The tools are located in the boot,
under the fl oor.
To gain access to them:

 open the boot,

 lift the fl oor,

 unclip and remove the box con-
taining the tools. List of tools
All of these tools are specifi c to your
vehicle. Do not use them for other
purposes.

1. Wheelbrace

2. Centring guide

3. Tool for removing/refi tting wheel
bolts

4. Jack with handle

5. Removable towing ring

6. Tool for bolt protectors on alu-
minium wheels Access to the spare wheel
The spare wheel is installed in the
boot, under the fl oor.
Removing the wheel

 Undo the yellow central screw by
a quarter turn.

 Raise the spare wheel towards
you rearwards.

 Remove the wheel from the boot
space.

135
XI
P R A C T I C A L I N F O R M A T I O N
Refi tting the wheel Dimension of the spare wheel
If your spare wheel is of different
dimensions to those on the vehicle
(identifi ed by a label), it is essential
to use it only on a temporary basis,
to drive not above 50 mph (80 km/h)
and to have the original wheel refi t-
ted as soon as possible.

Switch on your hazard
warning lamps.

Never get underneath the
vehicle if it is supported only by
the jack; use an axle stand.

The jack is designed specifi cally
for your vehicle, do not use it for
other applications.

Refi t the repaired original wheel
as soon as possible.

With a spare wheel fi tted, drive
with caution.

The wheel should be correctly
positioned fl at in the centre of
its well. Light alloy wheels
If your vehicle is equipped with
light alloy wheels and a steel spare
wheel, then if fi tting the latter it is
normal to note that the heads of the
wheel bolts do not come to bear on
the wheel rim.
The steel spare wheel is secured
by the conical tapering of the wheel
bolts’ shafts, see diagram.
When refi tting the light alloy wheel,
ensure that the wheel bolt heads are
in undamaged condition.

 Refi t the wheel in place.

 Undo the yellow central screw by
a few turns, then position it at the
centre of the wheel.

 Do up the central screw until tight
so that the wheel is securely re-
tained in place.

136
XI
P R A C T I C A L I N F O R M A T I O N
Removing a wheel
List of operations

 Park the vehicle on stable, fi rm
ground. Apply the handbrake.
Switch off the ignition and en- gage fi rst gear or reverse gear,
depending on the slope (for
vehicles with automatic gearbox,
select position P).

 Detach the embellisher using the
wheelbrace 1 by pulling close to
the valve.
For vehicles with aluminium wheel rims, slide the removal
tool 6 into the slot in the central
embellisher and apply fi rm lever-
age to detach.

 Slacken the wheel bolts.
For vehicles with aluminium wheels, slacken the anti-theft nut
using the tool provided.
 Position the jack under the body-
shell, exactly as in the illustra-
tion, at the mark A closest to the
wheel that is to be replaced.

 Operate the jack 4 until its base
is in contact with the ground.
Make sure that the base of the
jack is vertically below the jack-
ing point used.

 Raise the vehicle.

 Remove the bolts and disengage
the wheel. Fitting a wheel

Remove the bolts and
disengage the wheel. List of operations


Position the wheel using the cen-
tring guide.
 Do up the 3 bolts by hand and re-
move the centring guide. Position
the 4th bolt.

 Pretighten the bolts using the wheelbrace 1 .
 Retract the jack 4 and disengage it.

 Tighten the wheel bolts using the wheelbrace 1 .

 Reposition the embellisher, com- mencing by placing the slot at the
valve, pressing it home with the
palm of your hand. For vehicles with
aluminium wheels, refi t the central
embellisher.

 Stow the tools and the wheel in the boot.

 Check the tyre pressure and also have its balancing checked.

137
XI
P R A C T I C A L I N F O R M A T I O N
CHANGING A BULB
Procedure for replacing a faulty bulb
with a new bulb without the use of
any tools. Headlamps
Model with halogen headlamps

1. Dipped beams (H7 - 55 W)

2. Main beams (H1 - 55 W)

3. Sidelamps (H6 W - 6 W)

4. Direction indicators
(H21 - 21 W) A slight misting may appear on the
internal surface of the headlamp
glass in some climatic conditions
(e.g. low temperature or humidity);
this disappears after the lamps have
been on for a few minutes.

 Do not touch the bulb directly
with your fi ngers, use lint-free
cloths.
The headlamps are fi tted with poly-
carbonate glass with a protective
coating:

 do not clean them using a dry
or abrasive cloth, nor with a
detergent or solvent product,

 when using a high pressure
washer on persistent marks, do
not direct at the lamps or their
outlines for too long, so as not to
damage their coating and their
seals.
Changing a halogen bulb
should only be done after
the headlamp has been
switched off for a few minutes (risk
of serious burns).
It is imperative to use only anti-
ultraviolet (UV) type bulbs in order
not to damage the headlamp.

138
XI
P R A C T I C A L I N F O R M A T I O N
Dipped beam headlamps

 Remove the rubber cover.

 Rotate the bulb-holder a quarter
turn anti-clockwise and remove it
from its housing.

 Replace the faulty bulb.

 Reposition the bulb-holder by
pushing it in, tightening it by a
quarter turn clockwise.

 Refi t the rubber cover. Main beam headlamps

 Remove the rubber cover.

 Detach the clips by lowering
them on each side of the bulb.

 Pull on the bulb-holder to remove it.

 Replace the faulty bulb.

 Push the bulb-holder back into
its housing.

 Reattach the clips.

 Refi t the rubber cover. Sidelamps

 Rotate the bulb-holder a quarter
turn anti-clockwise.

 Remove it from its housing.

 Replace the faulty bulb.

 Reposition the bulb-holder.

 Rotate it a quarter turn clockwise
to reposition in its housing.