2002-2014 Citroen C8 4 Door CHECKS User Manual
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CHECKS for Your Citroen C8 4 Door Second Generation (2002-2014)

Fuel  
Filling with fuel  
The tank must be lled with fuel with  
the engine off.  
When the fuel ller ap is open, a  
system limits the opening of the  
rear left sliding side door.  
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-
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Open the fuel ller 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  
ap.  
The key cannot be removed from the  
cap's lock until the cap is retted on the  
tank.  
If the warning light ashes, this  
indicates a fuel gauge malfunction.  
Consult a CITROËN dealer.  
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 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 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  
LOW FUEL LEVEL  
When the tank's minimum  
level is reached, this warning  
light comes on, accompanied  
by the message "Fuel level  
low" on the display. When  
The capacity of the tank is  
approximately 18 gallons (80 litres).  
-
After lling the tank, lock the cap  
and close the ap.  
this warning light 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.  
6
Fuel  
Quality of the fuel used for  
Diesel engines  
FUEL CIRCUIT DISARMED  
DIESEL REPRIMING  
PUMP  
In a serious collision, a mechanism  
automatically prevents fuel from  
reaching the engine.  
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).  
If you should run out of fuel, it is  
necessary to re-prime the circuit:  
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ll the fuel tank with at least ve  
litres of diesel,  
The ashing of this warning  
light is accompanied by a  
message on the display.  
-
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.  
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).  
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.  
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-
-
put the key back in the ignition.  
switch on the ignition and start.  
DIESEL  
Opening the bonnet  
OPENING THE BONNET  
From inside:  
From outside:  
- lift the catch and raise the bonnet.  
"Bonnet open" warning  
This warning is linked to the alarm  
option only.  
With the engine running or the vehicle  
moving, a diagram on the display  
accompanied by an audible signal,  
warns you that the bonnet is not  
properly closed.  
-
lift the cover located at the left foot  
of the driver's seat.  
pull the control upwards.  
-
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.  
6
Under the bonnet  
UNDER-BONNET LAYOUT  
DIESEL ENGINES  
1. Windscreen/headlamp wash  
reservoir.  
2. Fuse box.  
3. Coolant reservoir.  
4. Wheelbrace.  
8. Removable towing eye.  
9. Engine oil ller cap.  
10. Dipstick  
(a: 2.0 HDi).  
11. Power steering reservoir.  
12. Repriming pump.  
5. Brake and clutch uid reservoir.  
6. Jack housing.  
7. Air lter.  
Levels  
LEVELS  
These regular maintenance  
operations will keep your vehicle  
in good running order. Consult the of additives in engine oil is prohibited.  
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  
Changing the brake fluid  
The brake uid must be changed at  
the intervals stated, according to the  
manufacturer's servicing schedule.  
Use uids recommended by the  
manufacturer, which full DOT4  
standards.  
The level must be between the MIN  
and MAX marks on the reservoir.  
If uid has to be added frequently,  
this indicates a failure which must be  
checked by a CITROËN dealer as  
soon as possible.  
Oil change  
It is imperative that this is carried out at  
the intervals specied and the viscosity  
grade of the oil selected must full the  
requirements in accordance with the  
manufacturer's servicing schedule.  
Consult the instructions at CITROËN  
dealerships.  
Remove the dipstick before lling.  
Check the level after lling (never  
If you have to remove/ret the  
engine style cover, handle it with  
care to avoid damaging the xing  
clips.  
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.  
exceed the max mark).  
Screw the cap back onto the sump  
before closing the bonnet.  
Warning lights  
Checking by means of the  
warning lights on the instrument  
panel is described in chapter 2,  
"Instruments and controls" section.  
Viscosity selection  
In all cases, the oil selected must meet  
the manufacturer's requirements.  
Dipstick  
There are two marks  
on the dipstick:  
A = maximum  
If you ll past this  
mark, contact a  
CITROËN dealer.  
B = minimum  
Never allow the level  
to fall below this  
mark.  
6
Levels  
During regeneration of the particle  
emission 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.  
Cooling system  
Power steering fluid level  
Only use the uid recommended by the The vehicle must be parked on level  
manufacturer.  
Otherwise, you risk seriously damaging  
your engine.  
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.  
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.  
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.  
Topping up  
It is imperative that this additive is  
topped up by a CITROËN dealer  
without delay.  
To avoid ice forming, do not use water.  
Diesel additive level (Diesel with Used oil  
particle emission filter)  
If uid has to be added frequently,  
this indicates a failure which must be  
checked by a CITROËN dealer as  
soon as possible.  
Avoid prolonged contact of used oil  
with the skin.  
Brake uid is harmful to health and  
very corrosive.  
Do not dispose of used oil, brake  
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.  
When this occurs with the engine running,  
this is due to the start of saturation of  
the particle emission lter (exceptionally  
prolonged urban driving conditions: low  
speed, long trafc jams, ...).  
In order to regenerate the lter, you are  
advised to drive at a speed of more than  
40 mph (60 km/h) as soon as possible,  
when trafc conditions permit, for at  
least 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 uid is  
required to top up the level, have the  
system checked by a CITROËN dealer.  
Checks  
CHECKS  
Battery  
Carbon filter and passenger  
compartment filter  
Particle emission filter (Diesel)  
It is imperative that particle emission  
lter maintenance is carried out by a  
CITROËN dealer.  
The carbon lter permits continuous  
and effective ltering of dust.  
If the passenger compartment 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 lter. By  
means of its second special active  
lter, it contributes to the purication  
of the air breathed by the occupants  
and to the cleanness of the passenger  
compartment (reduction of allergic  
symptoms, unpleasant odours and  
greasy deposits).  
At the start of winter, have your battery  
checked 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.  
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 uid level indicates  
that the brake pads are worn.  
Manual gearbox  
Have the level checked in accordance with  
the manufacturer's servicing schedule.  
To check the main levels  
and certain components,  
in accordance with the  
Brake disc/drum wear status  
For any information relating to  
checking the brake disc/drum wear  
status, contact a CITROËN dealer.  
Refer to the servicing booklet to  
nd out the replacement interval  
for these components.  
manufacturer's servicing schedule,  
refer to the pages of the servicing  
booklet which correspond to your  
vehicle's engine.  
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.  
Handbrake  
Only use products recommended  
by CITROËN or products  
of equivalent quality and  
specication.  
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.  
In order to optimise the operation  
of units as important as the braking  
system, CITROËN selects and offers  
specic products.  
In order to avoid damaging the  
electrical units, high pressure washing  
to clean the engine compartment is  
strictly prohibited.  
Oil filter  
Change the lter regularly, in  
accordance with the servicing  
schedule.  
6

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