2010 Citroen C8 Owner's Manual

104
Towing a trailer
On the contrary, use a high gear to
lower the engine speed and reduce
your speed.
In all cases, pay attention to the
coolant temperature.
Brakes: towing increases the braking
distance. Drive at a moderate speed,
change down early and brake
gradually.
Automatic adjustment
For vehicles with Xenon bulbs, and if
the change in load makes it necessary,
this system automatically corrects the
height of the beam after approximately
2 minutes. The driver is then assured
of having optimum lighting and not
causing a nuisance to other road
users.
In certain cases of particularly
arduous use (towing the
maximum load up a steep slope
in high temperatures), the engine
automatically limits its power. In this
case, cutting off the air conditioning
allows the engine power to be
recovered, and therefore the towing
speed to be signifi cantly increased
(approximately 12 mph [20 km/h]
more). Sequential control of the
gearbox may also become unavailable. Lighting
Bicycle carrier
Refer to the "Identifi cation
features" section of chapter 8. Refer to the "Steering wheel
controls" section of chapter 3.
When using a trailer connection,
you must add a fuse. Refer to
the "Changing a fuse" section of
chapter 7.

If the coolant temperature warning light
comes on, stop the vehicle and switch
off the engine as soon as possible.

Tyres: check the tyre pressures of
the towing vehicle and of the trailer,
observing the recommended pressure.
Side wind: sensitivity to side wind is
increased. Drive smoothly and at a
moderate speed.
Towbar
We recommend the use of original
CITROËN towbars, which have been
tested for endurance from the design
stage of your vehicle.
Towing equipment must be fi tted in
accordance with the manufacturer's
instructions, with particular attention to
the towing capacities of your vehicle,
the load towed, the nose weight and
the electrical connection. As this fi tting
should be carried out by a professional,
we recommend that you entrust the
fi tting of this equipment to a CITROËN
dealer.
In accordance with the general
instructions referred to above, we draw
your attention to the risk connected
with fi tting a towbar or other electrical
accessory which is not recommended
by the CITROËN network. Fitting such
equipment could result in a failure
of your vehicle's electronic system.
Please contact a CITROËN dealer fi rst
for further information. Manual adjustment
Adjust your headlamps so as not to
dazzle other road users. Check the
electrical signalling of the trailer.
If you fi t a bicycle carrier on
the tailgate, deactivate the
rear wiper from the display's
confi guration menu.

105
Roof bars
ACCESSORIES
5
USING ROOF BARS
To use the transverse roof bars,
release the four locking levers located
at the base of the feet of each bar.
From the left-hand side, slide them
in their rails to the required notch,
supporting the foot of the bar with two
hands to slide it correctly. Lock the four locking levers.
For greater ease, it is
recommended that two people carry
out these operations.
When the roof bars are not in use,
position them at the rear stop to avoid
excess consumption.
Use accessories recommended by
Automobiles CITROËN and follow
the fi tting instructions in the manual
provided by the manufacturer of the
load-carrying roof bars. - Remove the bolt, the stop and the
two washers at each location A .
- Move the bars to the locations A .
- Lift the two bars to remove them.
- Imperative: refi t the bolt, the
stop and the two washers at each
location A .
To refi t, proceed in the reverse order.
Removal and refitting of the
roof bars
Maximum authorised weight on the
roof rack: 220 lbs. (100 kg)

106
Snow screen
VERY COLD CLIMATE SCREEN
If fi tted on your vehicle, this is a
removable part which permits complete
or partial covering of the front air intake
(grille, ...) to favour the increase in the
engine temperature when driving in
very low temperatures and to prevent
the entry of snow into the engine
compartment. FITTING

 Offer up the screen facing its
centring pin A on the front bumper.

 Put it in place by pressing at each
clip B located in the four corners.
REMOVAL

 Pass a screwdriver into the hole
located near each of the clips.

 Use the screwdriver as a lever to
unclip the four clips B in turn.

When the snow has cleared, do not
forget to remove the very cold climate
screen.

107
Other accessories
ACCESSORIES
5
OTHER ACCESSORIES
These accessories and parts, after
being tested and approved for reliability
and safety, are all adapted to your
vehicle. A wide choice of recommended
accessories and original parts is offered
by the CITROËN Marque.
To avoid any jamming under the
pedals:
- ensure that the mat and its fi xings are positioned correctly,
- never place one mat on top of another.
Compatible portable equipment
For the hands-free kit audio
equipment, the fi tting of an RCA
auxiliary socket is offered specifi cally
by the Network.
The audio cable for connection to
the auxiliary socket (RCA yellow-red
located in the glove box) is also offered
by the network.
Following connection of the cable and
selection of the AUX mode, via the
source button, your portable equipment
is ready to operate.
Set the portable equipment to half
volume to avoid saturating the audio
system sound. Then use the audio
system volume button.
Audio systems, telephone, hands-free
kit, speakers, CD changer, navigation
system, DVD player, ... Alloy wheels, trims, aluminium interior
trim kit, mud fl aps, ...
Seat covers compatible with side
air bags, mats, boot tray, sunroof,
luggage net, door defl ectors, cool box
secured on the slides, clip armrest,
load carrying roof bars, roof box, snow
chains, ski carrier, tailgate bicycle
carrier, interior bicycle carrier, booster
seats and child seats, Isofi x seats, side
sun blinds and rear blind, ...
Trailer towbar which must be fi tted by a
CITROËN dealer. The fi tting of electrical equipment
or accessories which are not
recommended by CITROËN may
result in a failure of your vehicle's
electronic system.
Please note this specifi c warning. You
are advised to contact a representative
of the Marque to be shown the range
of recommended equipment or
accessories.
Screenwash, interior and exterior
maintenance and cleaning products,
replacement bulbs, ...
Depending on the country in which
the vehicle is sold, it is compulsory to
have a safety jacket, warning triangle
and replacement bulbs available in the
vehicle.
A further range is also available,
structured around comfort, leisure and
maintenance:
Anti-theft alarm, window engraving,
fi rst aid kit, safety jacket, rear parking
assistance, warning triangle, ...
When using a tailgate bicycle
carrier, deactivate the rear
wiper from the display
confi guration menu.
Before installing a radiocommunication
transmitter with aerial, contact a
CITROËN dealer who will inform you
of the specifi cations of the transmitters
which can be fi tted, in accordance with
the Motor Vehicle Electromagnetic
Compatibility Directive (2004/104/EC).

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.