2008.5 Citroen C5 engine

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1
I N S T R U M E N T S a n d C O N T R O L S
Engine oil temperature gauge
Under normal operating conditions,
the bars should be within section 1 .
In severe operating conditions, the
bars may extend into section 2 .
In this event, slow down, and if neces-
sary, stop the engine and check the
levels (see corresponding chapter). Coolant temperature
indicator
Under normal operating conditions,
the bars should be within section
1 .
In severe operating conditions, the
bars may extend into section 2 , the
engine coolant temperature warning
lamp A and the STOP warning lamp
will light up, stop immediately . Switch
off the ignition. The cooling fan may
continue to operate for a certain
time .
Consult a CITROËN dealer.
If the SERVICE warning lamp lights
up, check the levels (see correspon-
ding chapter). On horizontal ground, the lighting of
the fuel low warning lamp warns you
that you are at the reserve level.
A message alert is displayed on the
instrument panel.
Fuel gauge indicator

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3
C O M F O R T
Air conditioning
We recommend use of the automatic
regulation of the air conditioning.
It permits automatic and optimised
control of all of the following func-
tions: air fl ow, temperature in the
passenger compartment and air
distribution, by means of various
sensors (exterior temperature, sun-
shine). This eliminates any need for
you to change your settings other
than the temperature value dis-
played.

 Please do not block the sunshine
sensor A .
If you select the automatic mode (by
pressing the "AUTO" control) and
leave all of the vents open, optimum
comfort will be maintained and humid-
ity and condensation will be removed
regardless of the exterior climatic con-
ditions.
The temperature in the passenger
compartment can only be lower than
the exterior temperature if the air
conditioning is on.
VENTILATION, HEATING AND AIR CONDITIONING RECOMMENDATIONS
In order to be effective, the air condi-
tioning must be used with the windows
closed. If the vehicle has been parked
in the sun for a long period and the in-
terior temperature is very high, venti-
late the passenger compartment with
the windows open for a few minutes,
then close the windows.
To keep the air conditioning system
in good working order it is essential
that it is operated at least once a
month.
The air conditioning uses the engine
power during its operation. As a result,
the fuel consumption of the vehicle in-
creases.
In certain cases of particularly ardu-
ous use (e.g. towing the maximum
load on a steep gradient in high tem-
peratures), switching off the air condi-
tioning permits the recovery of engine
power and therefore increases the
towing capacity.
Air inlet
Check that the exterior grille for the
air inlet, at the bottom of the wind-
screen, is clean and free of dead
leaves, snow, etc.
When washing the vehicle using a
high pressure nozzle, avoid spray-
ing at the air inlet. Air circulation
Maximum comfort is obtained by
means of a good distribution of air in
the passenger compartment, both in
the front and in the rear.
To obtain a uniform distribution of
air, take care not to block the ex-
terior air intake grille located at the
base of the windscreen, the vents,
the air outlets under the front seats
and the air extractor located behind
the fl aps in the boot.
The front and rear vents are fi tted
with thumbwheels to adjust the air
fl ow and direction. We recommend
that you leave all of the vents open.
Dust filter/Odour filter
(active carbon)
There is a fi lter for excluding odours
and dust.
This fi lter has to be changed in ac-
cordance with the vehicle mainte-
nance schedule (see: "Maintenance
and Warranty Guide").

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3
C O M F O R T
Control via the manual controls
It is possible to adjust one or more
functions manually, while leaving the
other functions in automatic mode.

 Press one of the controls, with
the exception of that which regu-
lates the temperature 2 . Indicator
lamp A switches off.
Switching to manual mode may result
in discomfort (temperature, humidity,
odour, condensation) and may not
provide optimum (comfort).
To return to automatic mode, press
the "AUTO" control.
3. Air distribution adjustment
 Press the controls 3
to change the distri-
bution of the air fl ow. 4. Air conditioning
The air conditioning will only oper-
ate when the engine is running. The
air blower control (air fl ow adjust-
ment) must be active to obtain air
conditioning.
Switching off the ventilation

 Turn control 5 to the
left until the fl ow of air
stops.


Press control 4 . Indicator
light B comes on.
5. Air fl ow adjustment

 Turn control 5 to the
right to increase the
air fl ow or to the left to
reduce it.
6. Front demisting - de-icing
In certain cases, the

"AUTO" mode may not be
suffi cient to demist or de-
ice the windows (humidity,
several passengers, ice).

 Press control 6 to clear the win-
dows quickly. The indicator lamp
comes on.
The
"OFF" symbol is displayed on
the multifunction screen.
This action switches off the display
and the indicator lamps.
It deactivates all of the system's
functions, with the exception of the
rear screen demisting.
The temperature-related comfort is
no longer controlled (temperature,
humidity, odour, condensation).
Avoid driving for too long with the air
conditioning off.
In order to be effective, the air con-
ditioning must be used with the win-
dows closed.
Deactivating the air conditioning may
result in discomfort (temperature,
humidity, odour, condensation).
The indicator lamps corresponding
to the distribution chosen come on:
- Windscreen and front side win- dows.
- Front ventilation (central and side vents and air diffusion grille
if open) and rear ventilation.
- Front and rear footwells.
Simultaneous display of the distribu-
tion of air to the windscreen and side
windows and of front and rear venti-
lation is not possible. The air fl ow level is indicated by the
progressive lighting of the blocks of
the bar graph on the control panel
display
9 .
To prevent condensation and dete-
rioration of the quality of the air in the
passenger compartment, ensure that
an adequate fl ow of air is maintained.
To reactivate the air conditioning:

 Press control 1 .

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3
C O M F O R T
It controls the temperature, air fl ow
and intake and distributes the ven-
tilation to the windscreen and front
side windows.
Resuming manual control exits from
"Demisting" mode. It must be can-
celled to permit renewal of the air
in the passenger compartment and
demisting.
Once the screen is clear, press-
ing control 1 returns the system to

"AUTO" mode.


Press control 7 , with
the engine running, to
demist the rear screen
and the mirrors. The in-
dicator lamp comes on.
Demisting is switched off automatically
to prevent an excessive consumption
of current and in relation to the exterior
temperature.
It may be stopped by pressing con-
trol 7 again or when the engine is
switched off.
7. Rear demisting - de-icing
The heated rear screen operates in-
dependently of the air conditioning
system.
8. Intake of exterior air/
Recirculation of interior air
This function enables you to isolate
the passenger compartment from
exterior fumes and odours. - When starting with the engine
cold, the fl ow will reach its op-
timum level gradually to pre-
vent an excessive distribution
of cold air.
- When entering the vehicle af- ter it has been parked for a
fairly long period, if the inte-
rior temperature is very differ-
ent from your comfort setting
there is no need to change
the temperature displayed
in order to quickly reach the
level of comfort required. The
system automatically uses its
maximum performance to cor-
rect the difference in tempera-
ture as quickly as possible.
- The water resulting from the air conditioning condensation
is discharged via an open-
ing provided for this purpose;
therefore, a puddle of water
may form underneath the ve-
hicle when stationary.
- In all seasons, if the weather is cool, the air conditioning
is useful as it removes the
humidity from the air and the
condensation. Avoid driving
for prolonged periods with the
air conditioning switched off.
However, demisting resumes when
the engine is switched on again.
Switch off the rear screen and exterior
mirrors demisting when you consider
this necessary as low current con-
sumption reduces fuel consumption.

 Press control 8 sever-
al times to set the air
intake mode, the indi-
cator lamp comes on.

It must be cancelled as soon as
possible to permit renewal of the
air in the passenger compartment
and demisting.

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3
C O M F O R T
5. Air fl ow adjustment
 Press the control:
-
to increase the air fl ow,
- to reduce the air fl ow.
The air fl ow level is indi-
cated by the progressive
lighting of the fan blade in-
dicator lamps.

Reducing the fl ow to minimum
switches the air conditioning OFF.
To prevent condensation and dete-
rioration of the quality of the air in
the passenger compartment, ensure
that an adequate fl ow of air is main-
tained.
6. Air conditioning
The air conditioning will
only operate when the
engine is running. The air
blower control (air fl ow ad-
justment) must be active
in order to obtain air con-
ditioning.

 Press control 6 . The indicator light
comes on.
In order to be effective, the air condi-
tioning must be used with the windows
closed. 7. Air recirculation - intake of
exterior air
This function enables you
to isolate the passenger
compartment from exte-
rior fumes and odours.

Intake of air in automatic
anti-pollution mode
This is activated by default
in automatic comfort regu-
lation mode.
The automatic mode has an air qual-
ity sensor. It analyses the air and
isolates the passenger compart-
ment from the outside if it detects
the presence of pollutants. In this
case, it automatically activates the
recirculation of the passenger com-
partment air.
This function does not detect un-
pleasant odours and therefore does
not prevent them from entering the
passenger compartment. It is not
active when the exterior tempera-
ture is below +5 °C to avoid the risk
of condensation forming inside the
vehicle.
Closing the air intake

 Press control 7 to close
the exterior air intake.
It must be cancelled as soon as pos-
sible to permit renewal of the air in
the passenger compartment and de-
misting.

Intake of exterior air

 Press control 7 once
to open the exterior air
intake.
While retaining the other settings,
this position allows the driver to iso-
late himself from unpleasant exterior
odours and fumes at any time.

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3
C O M F O R T When starting with the engine
cold, the fl ow will reach its opti-
mum level gradually to prevent an
excessive distribution of cold air.
When entering the vehicle after it
has been parked for a fairly long
period, if the interior temperature
is very different from your comfort
setting there is no need to change
the temperature displayed in or-
der to quickly reach the level of
comfort required. The system
automatically uses its maximum
performance to correct the differ-
ence in temperature as quickly as
possible.
The water resulting from the air
conditioning condensation is dis-
charged via an opening provided
for this purpose; therefore, a pud-
dle of water may form underneath
the vehicle when stationary.
In all seasons, if the weather is
cool, the air conditioning is use-
ful as it removes the humidity
from the air and the condensa-
tion. Avoid driving for prolonged
periods with the air conditioning
switched off.
9. Front demisting - de-icing
In certain cases, the

"AUTO" mode may not be
suffi cient to demist or de-
ice the windows (humidity,
several passengers, ice).

 Press control 9 to clear the win-
dows quickly. The indicator light
comes on.
This system controls the temperature,
air fl ow and intake and distributes the
ventilation to the windscreen and front
side windows.
Resuming manual control exits from
the "Demisting" mode. It must be
cancelled as soon as possible to
permit renewal of the air in the pas-
senger compartment and demisting.
Pressing one of the controls 1a and

1b returns the system to the "AUTO"
mode.
8. Rear demisting - de-icing
Switch off the rear screen and exterior
mirrors demisting when you consider
this necessary as low current con-
sumption reduces fuel consumption. The heated rear screen
operates independently
of the air conditioning
system.

 Press control 8 , with the en-
gine running, to demist the rear
screen and the mirrors. The indi-
cator light comes on.
Demisting is switched off automatically
to avoid excessive consumption of
current and depending on the exterior
temperature.
It may be stopped by pressing con-
trol 8 again or when the engine is
switched off.
In this latter case, the demisting
resumes if the engine is switched on
again within one minute.

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3
C O M F O R T
PROGRAMMABLE HEATING *
With the engine off, programmable
heating preheats the coolant circuit
in order to optimise the engine op-
erating temperature prior to starting.
The programmable heating sys-
tem can be started immediately or
delayed thanks to its programming
function. With the engine idle or the vehicle
stationary, it is normal to hear a
high-pitched whistling noise and
to notice some smoke/emissions. Digital programmer
The heating system’s programmer is
located on the right-hand side of the
dashboard.

1. Time or remaining functioning
time.

2. Increase (time).

3. Select programme.

4. Programme number selected.

5. Immediate start-up of heating.

6. Time adjustment and reading
warning lamp.

7. Reduce (time).

8. Heating mode warning lamp.
9. Programmable heating system
warning lamp.

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3
C O M F O R T
FRONT SEATS MANUAL ADJUSTMENTS

1. Adjustments to the height and
angle of the head restraint
To raise it, pull upwards.
To lower it, press on the control A
to unlock it, and simultaneously
on the head restraint itself. The
adjustment is correct when the
top edge of the head restraint is at
the same height as the top of the
head. It is also tilt adjustable.
To raise it, press control A to
unlock it, then pull it upwards. It
may be necessary to adjust the
backrest angle.

2.
Adjustment of the backrest angle
Operate the control and adjust
the position of the backrest to
the front or to the rear.

3. Adjustment of the seat height
Raise or lower the control the number of times required to
obtain the desired position.

4. Longitudinal adjustment of seat
Lift the control bar and adjust to the desired position.

5. Adjustment of lumbar support
Turn the control and adjust to the desired position.

6. Heated seat controls
The heated seats only operate when the engine is running.
Seat consisting of a seat cushion, seat back and head restraint
which can all be
adjusted for optimum driving comfort.
For your safety, do not drive with
the head restraints removed; they
must be in place and correctly
adjusted.