engine Citroen C8 2010 1.G Owner's Guide

109
Fuel
CHECKS
6
LOW FUEL LEVEL Filling with fuel
The tank must be fi lled with fuel with

the engine off .
- Open the fuel fi ller fl ap.
- Insert the key then turn it to the left.
- Remove the cap and attach it to the clip located on the inside of the
fl ap.
It is usual to hear an air intake noise
when opening the cap as there is a
vacuum linked with the sealing of the
fuel circuit.
A label on the inside of the fl ap
indicates which type of fuel to use.
More than 5 litres of fuel must be
added in order to be registered by the
fuel gauge.
If you fi ll your tank, do not continue
after the third cut-off of the pump
nozzle. This could result in vehicle
malfunctions.
FILLING THE FUEL TANK
If the warning light fl ashes, this
indicates a fuel gauge malfunction.
Consult a CITROËN dealer.
When the tank's minimum
level is reached, this warning
light comes on, accompanied
by the message "Fuel level
low" on the display. When
this warning light fi rst comes on, you
have approximately 8 litres left,
depending on driving conditions and
the engine.
Fill up with fuel as soon as possible to
avoid running out.
Never continue to drive until you run
out of fuel as this could damage the
emission control and injection systems. The capacity of the tank is
approximately 18 gallons (
80 litres).
- After fi lling the tank, lock the cap and close the fl ap. When the fuel fi ller fl ap is open, a
system limits the opening of the
rear left sliding side door.
The key cannot be removed from the
cap's lock until the cap is refi tted on the
tank.

DIESEL
110
Fuel
FUEL CIRCUIT DISARMED
In a serious collision, a mechanism
automatically prevents fuel from
reaching the engine. The fl ashing of this warning
light is accompanied by a
message on the display.
DIESEL REPRIMING
PUMP
If you should run out of fuel, it is
necessary to re-prime the circuit:
- fi ll the fuel tank with at least fi ve litres of diesel,
- squeeze and release the manual re-priming pump, under the bonnet
under the protective cover, until fuel
appears in the transparent pipe,
- operate the starter until the engine starts.
Check that there is no odour or
leakage of fuel outside the vehicle and
re-establish the fuel supply:
- switch off the ignition
(STOP position).
- remove the key.
- put the key back in the ignition.
- switch on the ignition and start.
Quality of the fuel used for
Diesel engines
The Diesel engines are perfectly
compatible with biofuels which conform
to current and future European
standards (Diesel fuel which complies
with standard EN 590 mixed with a
biofuel which complies with standard
EN 14214) available at the pumps
(containing up to 7 % Fatty Acid Methyl
Ester).
The B30 biofuel can be used in certain
Diesel engines; however, this use
is subject to strict application of the
special servicing conditions. Consult a
CITROËN dealer.
The use of any other type of (bio)fuel
(vegetable or animal oils, pure or
diluted, domestic fuel...) is strictly
prohibited (risk of damage to the
engine and fuel system).

DIESEL
110
Fuel
FUEL CIRCUIT DISARMED
In a serious collision, a mechanism
automatically prevents fuel from
reaching the engine. The fl ashing of this warning
light is accompanied by a
message on the display.
DIESEL REPRIMING
PUMP
If you should run out of fuel, it is
necessary to re-prime the circuit:
- fi ll the fuel tank with at least fi ve litres of diesel,
- squeeze and release the manual re-priming pump, under the bonnet
under the protective cover, until fuel
appears in the transparent pipe,
- operate the starter until the engine starts.
Check that there is no odour or
leakage of fuel outside the vehicle and
re-establish the fuel supply:
- switch off the ignition
(STOP position).
- remove the key.
- put the key back in the ignition.
- switch on the ignition and start.
Quality of the fuel used for
Diesel engines
The Diesel engines are perfectly
compatible with biofuels which conform
to current and future European
standards (Diesel fuel which complies
with standard EN 590 mixed with a
biofuel which complies with standard
EN 14214) available at the pumps
(containing up to 7 % Fatty Acid Methyl
Ester).
The B30 biofuel can be used in certain
Diesel engines; however, this use
is subject to strict application of the
special servicing conditions. Consult a
CITROËN dealer.
The use of any other type of (bio)fuel
(vegetable or animal oils, pure or
diluted, domestic fuel...) is strictly
prohibited (risk of damage to the
engine and fuel system).

111
CHECKS
6
Opening the bonnet
OPENING THE BONNET
From inside:
- lift the cover located at the left foot of the passenger seat.
- pull the control upwards. “Bonnet open” warning
This warning is linked to the
alarm
option only.
With the engine running or the vehicle
moving, a graphic on the display,
accompanied by an audible signal,
warns you that the bonnet is not
properly closed.
From outside:
- lift the catch and raise the bonnet.
Bonnet strut
Secure the strut to hold the bonnet
open.
Before closing the bonnet, replace the
strut in its housing.
To close
Lower the bonnet and release it at the
end of its travel. Check that the bonnet
is properly locked.

112
Under the bonnet
UNDER-BONNET LAYOUT
DIESEL ENGINES

1. Windscreen/headlamp wash
reservoir.

2. Fuse box.

3. Coolant reservoir.
4. Wheelbrace.

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 : 2.0 HDi).

11. Power steering reservoir.

12. Repriming pump.

113
Levels
CHECKS
6
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.

114
Levels
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.

115
Checks
CHECKS
6
CHECKS
To check the main levels
and certain components,
in accordance with the
manufacturer's servicing schedule,
refer to the pages of the Maintenance
and Warranty Guide which correspond
to your vehicle's engine.
Only use products recommended
by CITROËN or products
of equivalent quality and
specifi cation.
In order to optimise the operation
of units as important as the braking
system, 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 6. 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.

116
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.

117
QUICK HELP
7
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 6.
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.