Citroen C8 2008.5 1.G Owner's Manual

195
Under the bonnet
CHECKS
7
DIESEL ENGINES

5. Brake and clutch fl uid reservoir.

6. Jack housing.

7. Air fi lter.

8. Removable towing eye.
9. Engine oil fi ller cap.

10. Dipstick
( a: 2.2 HDi; b: 2.0 HDi).

11. Power steering reservoir.

12. Repriming pump (2.0 HDi).

1. Windscreen/headlamp wash
reservoir.

2. Fuse box.

3. Coolant reservoir.

4. Wheelbrace.

196
Levels These regular maintenance
operations will keep your vehicle
in good running order. Consult the
instructions at CITROËN dealerships
or in the servicing booklet enclosed in
the handbook pack. To maintain the reliability of engines
and emission control systems, the use
of additives in engine oil is prohibited.
Oil change
It is imperative that this is carried out at
the intervals specifi ed and the viscosity
grade of the oil selected must fulfi l the
requirements in accordance with the
manufacturer’s servicing schedule.
Consult the instructions at CITROËN
dealerships .
Remove the dipstick before fi lling.
Check the level after fi lling (never
exceed the max mark).
Screw the cap back onto the sump
before closing the bonnet.
LEVELS
If you have to remove/refi t the
engine style cover, handle it with
care to avoid damaging the fi xing
clips.
Dipstick Warning lights
Oil level
Check the level regularly and top up
between changes. The maximum
consumption is 0.5 litre per 600 miles
(1 000 km).
Check the level with the vehicle level,
engine cold, using the dipstick.
Viscosity selection
In all cases, the oil selected must meet
the manufacturer’s requirements. Checking by means of the
warning lights on the instrument
panel is described in chapter 2,
"Instruments and controls" section.
Changing the brake fluid
The brake fl uid must be changed at
the intervals stated, according to the
manufacturer’s servicing schedule.
Use fl uids recommended by the
manufacturer, which fulfi l DOT4
standards.
The level must be between the MIN
and MAX marks on the reservoir.
If fl uid has to be added frequently,
this indicates a failure which must be
checked by a CITROËN dealer as
soon as possible.
There are two marks
on the dipstick:
A = maximum
If you fi ll past this
mark, contact a
CITROËN dealer .
B = minimum
Never allow the level
to fall below this
mark.

197
Levels
CHECKS
Cooling system
Only use the fl uid recommended by the
manufacturer.
Otherwise, you risk seriously damaging
your engine.
When the engine is warm, the
temperature of the coolant is controlled
by the engine fan. As this fan can
operate with the ignition key removed
and because the cooling system is
pressurised, wait for at least one hour
after the engine has stopped before
carrying out any work.
Slacken the cap by 1/4 of a turn to
release the pressure to prevent any
risk of scalding. When the pressure
has dropped, remove the cap and top
up the level with coolant.
If fl uid has to be added frequently,
this indicates a failure which must be
checked by a CITROËN dealer as
soon as possible. Power steering fluid level
The vehicle must be parked on level
ground with the engine cold. Unscrew
the cap integrated with the gauge and
check the level which must be between
the MIN and MAX marks.
During regeneration of the particle
emission fi lter, relay noise may be
heard under the fascia.
If the message is still displayed and
the service warning light remains on,
contact a CITROËN dealer .
Diesel additive level (Diesel with
particle emission filter)
When this occurs with the engine
running, this is due to the start of
saturation of the particle emission fi lter
(exceptionally prolonged urban driving
conditions: low speed, long traffi c
jams, ...).
In order to regenerate the fi lter, you
are advised to drive at a speed of
more than 40 mph (60 km/h) as soon
as possible, when traffi c conditions
permit, for at least fi ve minutes (until
the message disappears and the
service warning light is switched off).
Topping up
The level must be between the MIN
and MAX marks on the expansion
bottle. If more than 1 litre of fl uid is
required to top up the level, have the
system checked by a CITROËN dealer . Windscreen wash and headlamp
wash level
For best quality cleaning and for your
safety, we would advise that you use
products of the CITROËN range.
To avoid ice forming, do not use water.
Topping up
It is imperative that this additive is
topped up by a CITROËN dealer
without delay.
Used oil
Avoid prolonged contact of used oil
with the skin.
Brake fl uid is harmful to health and
very corrosive.
Do not dispose of used oil, brake
fl uid or coolant into drains or onto
the ground but into the containers
dedicated to this use at CITROËN
dealerships .
The minimum level of this
additive is indicated by
lighting of the service warning
light, accompanied by an
audible signal and a message
on the display.

198
Levels
CHECKS
To check the main levels
and certain components,
in accordance with the
manufacturer’s servicing schedule,
refer to the pages of the servicing
booklet which correspond to your
vehicle’s engine.
Only use products recommended
by CITROËN or products
of equivalent quality and
characteristics.
In order to optimise the operation
of units as important as the braking
circuit, CITROËN selects and offers
specifi c products.
In order to avoid damaging the
electrical units, high pressure washing
to clean the engine compartment is
strictly prohibited.
Oil filter
Change the fi lter regularly, in
accordance with the servicing
schedule. Refer to the servicing booklet to
fi nd out the replacement interval
for these components.
Depending on the environment (dusty
atmosphere...) and the use of the
vehicle (urban driving...), change them
twice as often if necessary.
Refer to the "Under the bonnet" section
of chapter 7. Particle emission filter (Diesel)
It is imperative that particle emission
fi lter maintenance is carried out by a
CITROËN dealer .
On acceleration after the vehicle has
been running for a prolonged period
at very low speed or at idle, you may,
in exceptional circumstances, notice
the emission of water vapour at the
exhaust. This water vapour does not
have any adverse effect on vehicle
handling or the environment.
Battery
At the start of winter, have your battery
checked by a CITROËN dealer .
Brake pads
Brake pad wear depends on the style
of driving, in particular for vehicles
which are used in town, over short
distances. It may be necessary to
check the thickness of the pads, even
between services.
Unless there is a leak on the circuit, a
drop in the brake fl uid level indicates
that the brake pads are worn.
Brake disc/drum wear status
For any information relating to
checking the brake disc/drum wear
status, contact a CITROËN dealer .
Handbrake
Where the handbrake travel is too
great or there is a reduction in the
performance of the system, the
handbrake should be adjusted, even
between services.
Have the system checked by a
CITROËN dealer . Carbon filter and passenger
compartment filter
The carbon fi lter permits continuous
and effective fi ltering of dust.
If the passenger compartment fi lter
becomes clogged, this may reduce
the performance of the air conditioning
system and generate unpleasant
odours.
We recommend the use of a combined
passenger compartment fi lter. By
means of its second special active
fi lter, it contributes to the purifi cation
of the air breathed by the occupants
and to the cleanness of the passenger
compartment (reduction of allergic
symptoms, unpleasant odours and
greasy deposits).
Manual gearbox
Have the level checked in accordance with
the manufacturer’s servicing schedule.

199
TROUBLESHOOTING
8
Battery
ECONOMY MODE FUNCTION
After the engine has stopped, with
the key in the ignition position, certain
functions (windscreen wiper, electric
windows, courtesy lights, audio
equipment, etc.) can only be used for a
cumulative duration of thirty minutes, to
prevent discharging the battery.
Once the thirty minutes are over, the
message "Economy mode active"
appears on the display and the active
functions are put on standby.
To resume the use of these functions
immediately, start the engine and let it
run for a few seconds.
A fl at battery will prevent the engine
from starting.
To charge the battery using a
battery charger
- Disconnect the battery,
- Follow the instructions for use
given by the battery charger
manufacturer,
- Reconnect starting with the negative (-) terminal,
- Check that the terminals and connectors are clean. If they are
covered with sulphate (white or
greenish deposit), disconnect them
and clean them.
BATTERY
This is housed in a compartment
located underneath the fl oor, in front of
the driver’s seat.
Before disconnecting the battery, you
must wait for 2 minutes after switching
off the ignition.
Never disconnect a terminal when the
engine is running.
Never charge a battery without fi rst
disconnecting the terminals.
Close the sunroof and the windows
before disconnecting the battery. If
they do not operate normally following
reconnection of the battery, they must
be reinitialised.
It is advisable to disconnect the
battery if the vehicle is not to be used
for a period of more than one month.
After every reconnection of the battery,
switch on the ignition and wait 1 minute
before starting to allow the electronic
systems to be initialised. If slight
diffi culties are experienced after this,
please contact a CITROËN dealer.
The door open monitoring electrical
system consumes power, remember
to close the sliding doors when your
vehicle is parked for long periods.
To start the vehicle from
another battery
- Connect the red cable to the positive (+) terminals of the two
batteries,
- Connect one end of the green or black cable to the negative (-)
terminal of the slave battery,
- Connect the other end of the green or black cable to an earth point on
the broken down vehicle as far as
possible from the battery,
- Operate the starter, let the engine run,
- Wait for the engine to return to idle, then disconnect the cables. For the sunroofs safety auto-
reverse, refer to the "Accesses"
section of chapter 2. For the electric windows safety
auto-reverse, refer to the "Mirrors
and windows" section of chapter 3.

200
Changing a wheel
CHANGING A WHEEL
1. PARKING THE VEHICLE
- If possible, park the vehicle on level, stable and non-slippery
ground.
- It is imperative that you ensure that the occupants get out of the
vehicle and wait in a safe location.
Depending on the country of
sale and for your own safety, use
the safety jackets and warning
triangles.
- Apply the handbrake, switch off the ignition and engage fi rst or reverse
gear (position P for the automatic
gearbox).
- If possible, place a chock under the wheel diagonally opposite the one
to be changed.
1. Wheelbrace.

2. Jack housing.

3. Alloy wheel embellisher remover.

4. Removable towing eye.
The jack and the tools are specifi c to
your vehicle. Do not use them for other
purposes. Refer to the location of the
tools (situated in the engine
compartment) in the "Under the
bonnet" section of chapter 7.
2. TOOLS
3. SPARE WHEEL
- Gain access to the spare wheel
from the boot.
- Open the cover to release the winch and access its bolt. You can switch on the row 3
courtesy light to increase the light
in the boot.

201
TROUBLESHOOTING
8
Changing a wheel
- Unwind the winch cable by unscrewing the bolt using the
wheelbrace.
- Detach the spare wheel from the rear of the vehicle and place it near
the wheel to be changed. 4. OPERATING PROCEDURE
Special tools for vehicles fi tted with
alloy wheels
If your vehicle has wheels with alloy
rims:
- The embellisher is removed using the alloy wheel embellisher
remover.
- Each wheel is fi tted with an anti- theft bolt.
These bolts can be loosened using
your anti-theft socket (given to you
on delivery of your vehicle) and the
wheelbrace.
- Remove the trim pulling at the
valve passage hole. Use the fl at
end of the towing eye as a lever.
- Loosen the wheel bolts and start unscrewing them.

202
Changing a wheel
Do not extend the jack until you
have started unscrewing the bolts
on the wheel to be changed and
have placed the chock under the wheel
diagonally opposite.
- Place the jack in contact with the
locating point provided, the one
which is closest to the wheel to
be changed. Ensure that the base
of the jack is in contact with the
ground, and straight above.
- Extend the jack to lift the wheel clear of the ground. - Resume and complete the
unscrewing of the wheel bolts.
- Remove the bolts and remove the wheel. 5. FITTING THE SPARE WHEEL
- Position the wheel on the hub and
start tightening the bolts by hand.
- Initially tighten the bolts using the wheelbrace.

203
TROUBLESHOOTING
8
Changing a wheel
- Lower the vehicle completely by folding the jack, then remove the
jack.
- Tighten the bolts again using the wheelbrace, tighten them fully
without forcing them. - Place the wheel to be repaired
in the boot well, with the valve
uppermost and the locating tab in
place.
- Raise the winch cable using the wheelbrace and tighten fully.
Check that the wheel is horizontal
and fl ush against the rear fl oor to
ensure that it is retained correctly
while driving.
- Remember to close the fl ap, located in the boot, it permits
securing of the winch.
- Store the trim in the boot. Never go underneath a vehicle
that is supported only by a
jack (use a ramp). Never use a
screwdriver in place of the wheelbrace
to unwind or wind the winch cable.
6. REFITTING THE REPAIRED
WHEEL
The wheel is refi tted as described in
step 5, not forgetting to refi t the wheel
trim.
The spare wheel is not designed
to be used over long distances.
Have the tightening of the bolts
and the tyre pressure checked by a
CITROËN dealer as soon as possible.
Also, have the original wheel repaired
and refi tted by a CITROËN dealer as
soon as possible.

204
Changing a bulb
CHANGING A BULB
Handle the bulbs with a dry cloth.
Make access easier on the right-
hand side by removing the wash-wipe
pipe and the fuse box cover.
High pressure washing: when using
this type of washing on stubborn dirt,
do not persist on the headlamps, the
lights and their surrounds to avoid
damaging their coating and their seal. 2 - Main beam headlamps
H7 - 55 W or xenon bulb.
- Turn the protective cover corresponding to the faulty bulb
a quarter of a turn to the left and
remove it.
- Disconnect the connector.
- Press the end of the securing clip to free it.
Change the bulb.
When fi tting the new bulb, ensure that
the direction notches are positioned
correctly and the securing clip is fi xed
properly.
- Reconnect the connector.
- Refi t the protective cover, then turn it a quarter of a turn to the right.
3 - Fog lamps
H1 - 55 W 3 W.
FRONT LIGHTS

1. Dipped headlamps

2. Main beam headlamps

3. Fog lamps

4. Side lights

5. Direction indicators 1 - Dipped beam headlamps
H7 - 55 W or xenon bulb. 4 - Side lights
W 5 W.
- Turn the bulb holder a quarter of a turn to the left and remove it.
- Change the bulb.

WARNING: RISK OF
ELECTROCUTION
Xenon bulbs must be changed by a
CITROËN dealer .