2015 Citroen C5 fuel consumption

13
C5_en_Chap00c_eco-conduite_ed01-2014
Optimise the use of your gearbox
With a manual gearbox, move off gently and change up without waiting.
During acceleration change up early.
With an automatic or electronic gearbox, give preference to automatic
mode and avoid pressing the accelerator pedal heavily or suddenly.
Control the use of your electrical
equipment
Before moving off, if the passenger compartment is too warm, ventilate it
by opening the windows and air vents before using the air conditioning.
Above 30 mph (50 km/h), close the windows and leave the air vents
open.
Remember to make use of equipment that can help keep the
temperature in the passenger compartment down (sunroof and window
blinds...).
Switch off the air conditioning, unless it has automatic regulation, as
soon as the desired temperature is attained.
Switch off the demisting and defrosting controls, if not automatic.
Switch off the heated seat as soon as possible.
Switch off the headlamps and front foglamps when the level of light
does not require their use.
Avoid running the engine before moving off, particularly in winter; your
vehicle will warm up much faster while driving.
As a passenger, if you avoid connecting your multimedia devices
(film, music, video game...), you will contribute towards limiting the
consumption of electrical energy, and so of fuel.
Disconnect your portable devices before leaving the vehicle.
Eco-driving
Eco-driving is a range of everyday practices that allow the motorist to optimise their fuel consumption and CO2 emissions.
The gear shift indicator invites you engage the most suitable gear: as
soon as the indication is displayed in the instrument panel, follow it
straight away.
For vehicles fitted with an electronic or automatic gearbox, this
indicator appears only in manual mode.
Drive smoothly
Maintain a safe distance between vehicles, use engine braking rather
than the brake pedal, and press the accelerator progressively. These
practices contribute towards a reduction in fuel consumption and CO
2
emissions and also helps reduce the background traffic noise.
If your vehicle has cruise control, make use of the system at speeds
above 25 mph (40 km/h) when the traffic is flowing well.
.
Eco-driving

14
C5_en_Chap00c_eco-conduite_ed01-2014
Limit the causes of excess consumption
Spread loads throughout the vehicle; place the heaviest items in the
bottom of the boot, as close as possible to the rear seats.
Limit the loads carried in the vehicle and reduce wind resistance
(roof bars, roof rack, bicycle carrier, trailer...). Use a roof box in
preference.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and refit your summer tyres.
Observe the recommendations on
maintenance
Check the tyre pressures regularly, when cold, referring to the label in
the door aperture, driver's side.
Carry out this check in particular:
-
b
efore a long journey,
-

a
t each change of season,
-

a
fter a long period out of use.
Don't forget the spare wheel and the tyres on any trailer or caravan.
Have your vehicle serviced regularly (engine oil, oil filter, air filter,
passenger compartment filter...) and observe the schedule of
operations recommended in the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system is faulty your vehicle
becomes polluting; go to a CITROËN dealer or a qualified workshop
without delay to have the emissions of nitrous oxides brought back to
the legal level.
When refuelling, do not continue after the third cut-off of the nozzle to
avoid any over flow.
At the wheel of your new vehicle, it is only after the first 1 800 miles
(3 000 kilometres) that you will see the fuel consumption settle down to
a consistent average.
Eco-driving

18
C5_en_Chap01_controle-de-marche_ed01-2014
System which provides current information concerning your journey (range, consumption, etc.)
Information displays Trip zero reset
The trip computer is displayed in the instrument
panel screen.
F
T
urn the left-hand thumb wheel A on the
steering wheel to display the various trip
computer tabs in succession:
F

W
hen the trip required is displayed, press
the left-hand thumb wheel on the steering
wheel for more than two seconds.
Tr i p s "1" and "2" are independent but their use
is identical.
For example, trip "1" can be used for daily
figures and trip "2" for monthly figures.
Trip computer
- the current information tab is displayed
in zone B of the instrument panel
screen, with:
●

t
he range,
●

t
he current fuel consumption,
●

t
he digital speed reading or the Stop &
Start time counter.
-

t
he trip "1" tab is displayed in zone C of
the instrument panel screen, with:
●

t
he distance travelled,
●

t
he average fuel consumption,
●

t
he average speed,
for the first trip.
-

t
he trip "2" tab is displayed in zone C of
the instrument panel screen, with:
●

t
he distance travelled,
●

t
he average fuel consumption,
●

t
he average speed,
for the second trip.
Monitoring

19
C5_en_Chap01_controle-de-marche_ed01-2014
Trip computer, a few definitions
Range
(miles or km)
Current fuel consumption
(mpg or l/100 km or km/l)
Average fuel
consumption
(mpg or l/100 km or km/l)
Average speed
(mph or km/h)
Distance travelled
(miles or km)
The distance which can still be travelled
with the fuel remaining in the tank (related to
the average fuel consumption over the last
few

miles (kilometres) travelled).
When the range falls below 20 miles (30 km),
dashes are displayed. After filling with at least
5 litres of fuel, the range is recalculated and is
displayed when it exceeds 60 miles (100 km). Calculated over the last few seconds.
Calculated since the last trip computer reset.
Calculated since the last trip computer reset. Calculated since the last trip computer reset.
Stop & Start time
counter
(minutes / seconds or hours /
m inutes)
If your vehicle is fitted with Stop & Start, a time
counter calculates the time spent in STOP
mode during a journey.
It resets to zero every time the ignition is
switched on with the key.
This function is only displayed from
20

mph (30 km/h).
This value may vary following a change
in the style of driving or the relief,
resulting in a significant change in the
current fuel consumption.
If dashes are displayed continuously
while driving in place of the digits,
contact a CITROËN dealer or a
qualified workshop.
1
Monitoring

38
C5_en_Chap01_controle-de-marche_ed01-2014
Speech synthesis setting
This menu allows you to set the volume for
navigation instructions and to chooses the type
of voice (male or female).
Select language
This menu allows you to select the language
used by the screen display from a defined list.
Select "Synchronise minutes with
GPS" , so that the minutes are set
automatically by satellite reception.
Display configuration
This menu allows you to choose a colour
scheme for the screen, adjust the brightness,
set the date and time and choose the units
for distance (km or miles), fuel consumption
(l/100
km, mpg or km/l) and temperature
(°Celsius or °Fahrenheit).
Date and time
F Press the " SETUP" button.
F S elect "Display configuration" and press
on
B to confirm.
F

S
elect "Adjust date and time" and press
on
B to confirm.
F

A
djust the settings one by one using the
directional arrows then confirm by pressing
on B .
Trip computer
This menu allows you to view information on
the state of the vehicle. You can choose from
the following functions:
-

"
Alert log".
L

ist of active alerts.
-

"
State of functions".
L

ist of the state of functions (activated,
deactivated or faulty).
For safety reasons, configuration of the
multifunction screen by the driver must
be only done when stationary.
Monitoring

68
C5_en_Chap03_ergo-et-confort_ed01-2014
We recommend use of the automatic regulation
of the air conditioning.
It permits automatic and optimised control
of all of the following functions: air flow,
temperature in the passenger compartment
and air distribution, by means of various
sensors (ambient temperature, sunshine).
This eliminates any need for you to change
your settings other than the temperature value
displayed.
F Take care not to cover 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 humidity and condensation will
be removed regardless of the exterior climatic
conditions.
The temperature in the passenger compartment
can only be lower than the ambient temperature
if the air conditioning is on.
In order to be effective, the air conditioning must
be used with the windows closed. If the vehicle
has been parked in the sun for a long period
and the interior temperature is very high, first
ventilate the passenger compartment with the
windows open for a few minutes, then close the
windows.
Heating, ventilation and air conditioning recommendations
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 engine power
during its operation. As a result, the fuel
consumption of the vehicle increases.
In certain cases of particularly arduous use
(e.g. towing the maximum load on a steep
gradient in high temperatures), switching off
the air conditioning saves engine power and
improves the towing capacity.
Air inlet
Check that the exterior grille for the air inlet,
at the bottom of the windscreen, is clean and
free of dead leaves, snow, etc.
When washing the vehicle using a high
pressure nozzle, avoid spraying at the air
inlet. 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 exterior 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 flaps in
the boot.
The front and rear vents are fitted with
thumbwheels to adjust the air flow and
direction. We recommend that you leave all of
the vents open.
Dust filter / Odour filter
(active carbon)
There is a filter for excluding odours and
dust.
This filter must be changed in line with the
vehicle's servicing schedule. (Refer to the
maintenance and warranty guide).
Air conditioning
Air circulation
Ease of use and comfort

72
C5_en_Chap03_ergo-et-confort_ed01-2014
F Press control 7, with the
engine running, to demist
the rear screen and the door
mirrors. The indicator lamp
comes on.
7. Rear demisting - defrosting
This function enables you to isolate the passenger
compartment from exterior fumes and odours.
However, demisting resumes when the engine
is switched on again.
Switch off the rear screen and door mirrors
demisting when you consider this necessary
as low current consumption reduces fuel
consumption. F

P
ress control 8 to set the air
intake mode, the indicator
lamp comes on.
Demisting is switched off automatically to
prevent an excessive consumption of current
and in relation to the ambient temperature.
It may be stopped by pressing control 7 again
or when the engine is switched off. It must be cancelled as soon as possible to
permit renewal of the air in the passenger
compartment and demisting.
The heated rear screen operates independently
of the air conditioning system.
With Stop & Start, when demisting has
been activated, the STOP mode is not
available. You can store the air conditioning
settings. Refer to the "Storing driving
positions" section.When starting with the engine cold,
the flow will reach its optimum 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 order to quickly reach the
level of comfort required. The system
automatically uses its maximum
per formance to correct the difference in
temperature as quickly as possible.
The water resulting from the air
conditioning condensation is
discharged via an opening provided
for this purpose; therefore, a puddle of
water may form underneath the vehicle
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.
8. Intake of exterior air /
Recirculation of interior air
Ease of use and comfort

76
C5_en_Chap03_ergo-et-confort_ed01-2014
9. Front demisting - defrosting
In certain cases, the "AUTO"
mode may not be sufficient to
demist or defrost the windows
(humidity, several passengers,
i c e).
8. Rear demisting - defrosting
Switch off the rear screen and exterior mirrors
demisting when you consider this necessary
as low current consumption reduces fuel
consumption. The heated rear screen operates
independently of the air
conditioning system.
F Press control
8, with the engine running, to
demist the rear screen and the mirrors. The
indicator lamp 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 control 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. F
P
ress control 9 to clear the windows
quickly. The indicator lamp comes on.
This system controls the temperature, air flow
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 passenger compartment and demisting.
Pressing one of the controls 1a and 1b returns
the system to the "AUTO" mode.
With Stop & Start, when demisting has
been activated, the STOP mode is not
available. When starting with the engine cold,
air flow will reach its optimum 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 order to quickly reach the
level of comfort required. The system
automatically uses its maximum
per formance to correct the difference in
temperature as quickly as possible.
The water resulting from the air
conditioning condensation is discharged
via an opening provided for this purpose;
therefore, a puddle of water may form
underneath the vehicle 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.
Ease of use and comfort