2010 Citroen C8 Owner's Manual

Steering wheel controls
50
Switching the function off
- Place the dial in position 0 or switch
off the ignition to switch everything
off. Good practice
When changing the programmed
reference speed by means of a
maintained press, pay attention as
the speed can increase or decrease
rapidly.
Do not use the cruise control on
slippery roads or in heavy traffi c.
In the event of a steep slope, the cruise
control cannot prevent the vehicle from
exceeding the programmed speed.
In any event, the cruise control cannot
replace the need to observe the speed
limits, nor can it replace the need for
vigilance and responsibility on the part
of the driver.
You are advised to keep your feet near
the pedals.
To avoid any jamming under the
pedals:
- ensure that the mat and its fi xings on the fl oor are positioned correctly,
- never place one mat on top of another
Changing the
programmed
speed
There are two methods
of memorising a
speed higher than the
previous one:
Without using the accelerator:
- press the Set + button.
A brief press increases the speed by
1 mph (km/h).
A maintained press increases the
speed in steps of 5 mph (km/h).
Operating fault
The programmed speed is cleared and
the dashes fl ash for a few seconds.
Consult a CITROËN dealer to have the
system checked.
Using the accelerator:
- exceed the memorised speed until
the speed required is reached,
- press the Set + or Set - button.
To memorise a speed lower than the
previous one:
- press the Set - button.
A brief press decreases the speed by
1 mph (km/h).
A maintained press decreases the
speed in steps of 5 mph (km/h). Cancelling the programmed
reference speed
When the vehicle becomes stationary,
after switching off the ignition, the
system no longer memorises a speed.

Steering wheel controls
EASE OF USE and COMFORT
51
SPEED LIMITER "LIMIT"

To resume use of the limiter, simply
reduce the pressure on the accelerator
pedal gradually and return to a speed
below that programmed.
If the vehicle is fi tted with a speed
limiter and cruise control (according
to the country in which the vehicle is
sold and the engine), these functions
cannot be activated at the same time .

The operating actions can be carried
out when stationary, with the engine
running, or with the vehicle moving. Function selected,
displaying of the
"Speed Limiter"
symbol.
Function deactivated,
last programmed
speed - OFF
(example at 65 mph
(107 km/h)).
Function activated
(example at 65 mph
(107 km/h)).
Vehicle speed above
(example at 70 mph
(118 km/h)),
the programmed
speed is displayed
fl ashing.
Operating fault
detected, OFF -
the dashes fl ash.
This speed limiter shows the function
selection status on the instrument
panel and displays the programmed
speed:
"This is the selected speed which the
driver does not wish to exceed".
This selection is made with the engine
running while stationary or with the
vehicle moving. The minimum speed
which can be programmed is 20 mph
(30 km/h).
The speed of the vehicle responds
to the pressure of the driver's foot as
far as the accelerator pedal point of
resistance which indicates that the
programmed speed has been reached.
However, pressing the pedal beyond
this point of resistance to the fl oor
permits exceeding of the programmed
speed.

Steering wheel controls
52
Selecting the function
- Place the dial in the LIMIT position.
The limiter is selected but is not yet
active. The display indicates the
last programmed speed.
Programming a speed
A speed can be programmed without
activating the limiter but with the
engine running.
To memorise a speed higher than the
previous one:
- press the Set + button.
A brief press increases the speed by
1 mph (km/h).
A maintained press increases the
speed in steps of 5 mph (km/h). Activation/Deactivation (off)
Pressing this button once activates
the limiter, pressing the button again
deactivates it (OFF).
To memorise a speed lower than the
previous one:
- press the Set - button.
A brief press decreases the speed by
1 mph (km/h).
A maintained press decreases the
speed in steps of 5 mph (km/h).

Steering wheel controls
EASE OF USE and COMFORT
3
53
Switching the function off
- Place the dial in position 0 or switch
off the ignition to switch the system
off. The last programmed speed
remains in the memory.
Exceeding the programmed
speed
Pressing the accelerator pedal in order
to exceed the programmed speed
will have no effect unless you press
the pedal
fi rmly beyond the point of
resistance .
The limiter is deactivated temporarily
and the programmed speed fl ashes.
To return to the limiter function, reduce
your speed to below the programmed
speed. Operating fault
The programmed speed is cleared and
the dashes fl ash for a few seconds.
Contact a CITROËN dealer to have
the system checked.
Flashing of the speed
The speed fl ashes:
- following forcing of the accelerator point of resistance,
- when the limiter cannot prevent an increase in the vehicle speed due
to the profi le of the road or on a
steep descent,
- in the event of sharp acceleration. Good practice

In any event, the speed limiter cannot
replace the need to observe speed limits,
nor can it replace the need for vigilance
and responsibility on the part of the driver.
Always pay attention to the profi le of the
road, take care on sharp acceleration and
stay in complete control of your vehicle.

To avoid any jamming under the
pedals:
- ensure that the mat and its fi xings
positioned correctly,
- never place one mat on top of another.

54
Ventilation
VENTILATION
CORRECT USE OF THE
VENTILATION AND AIR
CONDITIONING
Vents

"Leave them open"
For optimum distribution and diffusion
of hot or cool air in the passenger
compartment, there are adjustable
central and side vents which can be
directed sideways (right or left) towards
the top of the body. For your comfort
while driving, do not close them, direct
the fl ow of air towards the windows
instead.
The air vents directed towards the fl oor
of the vehicle complete the equipment. Passenger compartment filter,
carbon filter
Ensure that this fi lter is in good
condition and have all of the fi lter
elements replaced regularly.
Refer to the "Checks" section of
chapter 6. Air conditioning
In all seasons, the air conditioning
should only be used with the windows
closed. However, if the interior
temperature remains high after a
prolonged period parked in the sun, do
not hesitate to ventilate the passenger
compartment for a few minutes.
Use the AUTO mode as much as
possible as it permits optimised
control of all of the functions: air fl ow,
passenger compartment comfort
temperature, air distribution, air
intake mode or air recirculation in the
passenger compartment.
Operate the air conditioning system for
5 to 10 minutes, once or twice a month,
to keep it in perfect working order.
It is normal that the condensation
created by the air conditioning system
results in a fl ow of water which may
form a puddle under the vehicle when
parked.
If the system does not produce cold air,
do not use it and consult a CITROËN
dealer.

55
Ventilation
EASE OF USE and COMFORT
De-icing the rear screen
and mirrors Demisting,
visibility programme
DE-ICING AND DEMISTING
The comfort programme
may not be suffi cient to
quickly demist or de-ice the
windows (humidity, several
passengers, ice).
In this case, select the visibility
programme. The visibility programme
indicator light comes on.
It activates the air conditioning, the air
fl ow, the de-icing of the rear screen
and provides optimum distribution of
the ventilation to the windscreen and
side windows.
It deactivates the air recirculation.
Press this button, with the
engine running, to de-ice
the rear screen and mirrors.
The de-icing indicator light
comes on. The duration
of de-icing depends on the exterior
temperature.
Pressing the button again reactivates
the de-icing.
It is possible to stop the de-
icing before it is switched off
automatically by pressing this
button again. ADDITIONAL HEATER
To improve your comfort, vehicles fi tted
with an HDi engine may be fi tted with
automatic additional heating.
However, with the engine at idle or
when the vehicle is stationary,
it is normal to notice a high-pitched
whistling and a slight emission of
smoke and odour.

56
Ventilation
Do not cover the sunshine sensor
located in the centre of the fascia.
This is used to regulate the air
conditioning.
Located on the centre console, the
control panel is to the right of the gear
lever.
1 - AUTO mode
This is the normal air
conditioning operating mode.
Refer to the beginning of the
"Ventilation" section of chapter 6.
The driver and front passenger can
each adjust the air temperature to suit
their requirements.
They can also activate or disarm the
rear ventilation adjustment controls.
For your comfort, the settings selected
when the ignition is switched off will be
retained when it is switched on again, if the
temperature in the passenger compartment
has not changed signifi cantly; otherwise,
operation will resume in automatic mode.
- Press the "AUTO" button.
Depending on the comfort temperature
selected, the system controls the air
distribution, fl ow and intake so that the
passenger compartment is comfortable
and has an adequate circulation of air.
You do not have to make any further
adjustments.
When the engine is cold, in order
to prevent a rush of cold air, the
ventilation will reach its optimum level
progressively.
The "AUTO" symbol is displayed.

3
57
Ventilation
EASE OF USE and COMFORT

2 - Driver's temperature
adjustment
4 - Adjustment of the air
distribution
Pressing the corresponding
button(s) 4 allows you to
position the air fl ow towards:
- the windscreen,
- the side vents and the central vents,
- the side vents, the central vents and the footwells,
- the windscreen and the footwells,
- the footwells.
The indicator light corresponding to the
position selected 4 comes on.
5 - Adjustment
of the rear ventilation
("REAR" version)
To permit adjustment of the
ventilation to the rear passengers,
press the REAR button.

The rear ventilation symbol is displayed.

3 - Passenger's temperature
adjustment
The required value is displayed
(from 14 to 28: comfort value = 21).
The maximum difference between the
value displayed for the driver and for the
passenger may not be greater than 5.
If you use these manual adjustments,
the AUTO symbol switches off.
Press the corresponding "+" and "-"
buttons to adjust.
To make the driver and passenger
setting the same:
- air conditioning with "MONO" version, press the MONO button.
- air conditioning with "REAR" version, press the + button for more
than two seconds.
On entering the vehicle, the
interior temperature may be
considerably lower (or higher)
than is comfortable. It is not necessary
to change the value displayed in order
to quickly obtain the desired level of
comfort. The system will operate at
maximum performance to reach the
comfort value set.
MONO Version
Press this button once to
obtain an even temperature
throughout the passenger
compartment. The reference
value is selected by the
driver. Take care not to obstruct
the side vents and the
air outlets on the fl oor.
The row 2 side vents air
fl ow adjustment controls
are operational and can
be adjusted.
To deactivate the rear
ventilation controls,
press the
REAR button
again.
The rear ventilation
symbol switches off.