2022 CITROEN C5 AIRCROSS DAG fuel pressure

7
Eco-driving
Eco-driving
Eco-driving refers to a range of everyday
practices that allow the motorist to optimise
the vehicle's energy consumption (fuel and/or
electricity) and CO
2 emissions.
Optimise your use of the gearbox
With a manual gearbox, move off gently and
change up promptly. While accelerating, change
up early.
With an automatic gearbox, favour automatic
mode. Do not depress the accelerator pedal
heavily or suddenly.
The gear shift indicator prompts you to engage
the most suitable gear. Whenever this indication
is displayed on the instrument panel, follow it
straight away.
With an 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 gradually. These practices
help to save on energy consumption, reduce
CO
2 emissions and decrease general traffic
noise.
Favour the use of “Eco” driving mode.
With an EAT8 gearbox, with the gear selector
in mode
D, and except in Sport mode, favour
"free-wheeling" by fully lifting your foot from the
accelerator pedal in order to save fuel. When the traffic is flowing smoothly, select the
cruise control.
Control the use of 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.
At speeds above 31
mph (50 km/h), close the
windows and leave the air vents open.
Consider using equipment that can help keep
the temperature in the passenger compartment
down (e.g.
sunroof blind, window blinds).
Unless automatically regulated, switch off the air
conditioning as soon as the desired temperature
has been reached.
Switch off the demisting and defrosting functions,
if they are not managed automatically.
Switch off the heated seat as soon as possible.
Adapt the use of headlamps and/or foglamps
depending on visibility conditions.
Avoid running the engine before moving off,
particularly in winter (other than in severe wintry
conditions: temperature below -23°C). The
vehicle will warm up much faster while driving.
As a passenger, avoid connecting your
multimedia devices (e.g.
film, music, video
game) to help reduce the consumption of energy.
Disconnect all portable devices before leaving
the vehicle.
Limit the causes of excess consumption
Spread loads throughout the vehicle. Place the
heaviest items in the boot as close as possible to
the rear seats. Limit the loads carried in the vehicle and
minimise wind resistance (e.g.
roof bars, roof
rack, bicycle carrier, trailer). Preferably, use a
roof box.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and refit
summer tyres.
Avoid using Sport mode for too long, in order to
limit your energy consumption.
Comply with the servicing instructions
Check tyre pressures regularly, with the tyres
cold, referring to the label in the door aperture on
the driver's side.
Carry out this check in particular:
–

before a long journey
.
–

at each change of season.
–


after a long period out of use.
Do not forget the spare wheel and, where
applicable, the tyres on your trailer or caravan.
Have your vehicle serviced regularly (e.g.

engine
oil, oil filter, air filter, passenger compartment
filter, etc.). Observe the schedule of operations in
the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system
is faulty, your vehicle will emit pollution. Visit
a CITROËN dealer or a qualified workshop
as soon as possible to restore your vehicle's
nitrogen oxide emissions to legal levels.
When filling the fuel tank, do not continue after
the third cut-out of the nozzle, to avoid overflow.

9
Instruments
1Instrument panel with
dials



Dials
1. Speedometer (mph or km/h)
2. Fuel gauge
3. Engine coolant temperature gauge
4. Rev counter (x 1,000 rpm)
5. Display screen
Control buttons
A.Resetting the service indicator
Alert log display
Reminder of servicing information or the
remaining range associated with AdBlue
® and
the SCR system (miles or km)
Tyre pressure status information display
B. General lighting dimmer
C. Resetting the trip distance recorder
Display

1.Cruise control or speed limiter settings
Speed suggested by the Speed Limit
Recognition and Recommendation
2. Gear shift indicator and/or selector position,
gear and Sport mode indicator with an
automatic gearbox
3. Display area: alert messages or state of
functions, trip computer, digital speedometer
(mph or km/h), range associated with the
AdBlue
® and the SCR system (miles or km),
etc.
4. Service indicator, then total distance recorder
(miles or km)
These functions are displayed in turn when
the ignition is switched on
5. Trip distance recorder (miles or km)
Digital instrument panel
This instrument panel can be customised. The content and availability of information
depends on the display mode selected and the
vehicle’s equipment.
Example in the "DIALS" display mode:




1. Fuel gauge
Remaining fuel range (km or miles)
(Rechargeable hybrid)
2. Trip computer
3. Rev counter (x 1,000 rpm) (Petrol or Diesel)
Power indicator (Rechargeable hybrid)
4. Digital speedometer (mph or km/h)
5. Cruise control or speed limiter settings
6. Display of speed limit signs
7. Selector position and gear on automatic
gearbox
Gear shift indicator
Driving mode selected

10
Instruments
8.Coolant temperature indicator (°C) (Petrol
or Diesel)
Battery charge level and remaining range
(miles or km) (Rechargeable hybrid)
9. Total distance recorder (miles or km)
10. Trip distance recorder (miles or km)
Control button
A.Short press: display the alerts log, reminder
of servicing information or the remaining
range associated with the AdBlue
® and the
SCR system (miles or km) and tyre pressure
status information display.
Long press: reset the service indicator or trip
distance recorder (depending on the context).
Displays
Some lamps have a fixed location, others can
change location.
For certain functions that have indicator lamps
for both operation and deactivation, there is only
one dedicated location.
Permanent information
In the standard display, the instrument panel
shows:
–

in fixed locations:
•


Rev counter (Petrol or Diesel).
•


Fuel level indicator
.
•

Coolant temperature indicator
.
•

Charge level and range indicator
(Rechargeable hybrid).
• Power indicator (Rechargeable hybrid).
• Distance recorders.
–

in variable locations:
•


Information related to the gearbox and gear
shift indicator

.
•

Digital speedometer
.
•

Status or alert messages displayed
temporarily

.
Optional information
Depending on the selected display mode and
active features, additional information may be
displayed:
–
Rev counter (Petrol or Diesel).
–


T
rip computer.
–

Driving aid functions.
–


Speed limiter or cruise control.
–


Media currently playing.
–


Navigation instructions.
–


Analogue speedometer
.
–

Engine oil level and temperature.
Customising the instrument
panel
You can modify the appearance of the instrument
panel by choosing:
–
a display colour
.
–

a display mode.
Display language and units
These depend on the touch screen
settings.
When travelling abroad, the speed must be
shown in the official units of the country you
are driving in (mph, miles or km/h, km).
As a safety measure, these adjustments must be carried out with the vehicle
stationary.
Choosing the display colour
► Press " Settings" in the upper banner
of the touch screen.
►

Select "
Color schemes".
►

Select a display colour
.
Choosing the display mode
In each mode, specific types of information are
displayed on the instrument panel.


► Turn the thumbwheel on the left of the
steering wheel to display and scroll through
the various modes on the left-hand side of the
instrument panel.
►

Press the thumbwheel to confirm the mode.
The new display mode is applied immediately

.
If you do not press the thumbwheel, the selected
display mode is automatically applied after a few
moments.

28
Access
illumination of the direction indicators for a
few seconds.
With the remote control
► Within 5 seconds of locking the
vehicle, press the button again to
deadlock it.
With the key
► Within 5 seconds of locking the vehicle, turn
the key to the rear again to deadlock it.
Locating your vehicle
This function allows you to identify your vehicle
from a distance, particularly in poor light. Your
vehicle must be locked.
► Press this button. The courtesy lamps
will come on and the direction indicators
will flash for a few seconds.
Remote lighting of the
lamps
Availability of this function depends on version.► Press this button. The sidelamps,
dipped beam headlamps, number plate
lamps and door mirror spotlamps come on for 30
seconds.
Pressing again before the end of the timed
period switches off the lamps immediately.
Complete or selective unlocking, and alarm
deactivation (depending on version), is confirmed
by the flashing of the direction indicators.
Depending on version, the door mirrors unfold.
Opening the windows
Depending on version, holding the
unlocking button pressed for more than 3
seconds opens the windows.
The windows stop when the button is released.
With the key
► Turn the key in the front left-hand door lock
towards the front of the vehicle to unlock it.
Selective unlocking and opening of
the tailgate
The settings for the selective tailgate unlocking
and motorised operation are made in the vehicle
configuration menu.
By default, selective tailgate unlocking is
activated and and motorised operation is
deactivated.
► Make a long press on the button to
unlock the boot and trigger the motorised
opening of the tailgate.
The doors and fuel filler flap remain locked.
If selective unlocking of the tailgate is
deactivated, pressing the button unlocks
the whole vehicle.
If motorised operation of the tailgate is
deactivated, pressing the button releases
the tailgate.
To lock the vehicle, it is necessary to close
the tailgate again.
Locking the vehicle
With the remote control
► Press this button to lock the vehicle.
Locking is confirmed by fixed illumination of
the direction indicators for approximately two
seconds. Depending on version, the door mirrors
fold.
If one of the doors or the boot is still open, the
central locking does not work; the vehicle locks,
then immediately unlocks, identifiable by the
locks making a rebound sound.
When the vehicle is locked, if it is
unlocked without the opening of a door
or the boot, it will automatically lock itself
again after thirty seconds.
The automatic folding and unfolding of the door mirrors can be deactivated via
the vehicle's configuration menu.
With the key
► Turn the key in the front left-hand door lock
towards the rear of the vehicle to unlock it.
Check that the doors and boot are fully
closed.
Closing the windows and sunroof
Maintaining pressure on the locking button
allows the windows and, depending on version,
the sunroof to be closed to the desired position.
This operation also closes the sunroof blind.
Ensure that no person or object could
prevent the correct closing of the
windows and sunroof.
If, on versions with alarm, you want to leave
the windows and/or sunroof partly open, you
must first deactivate the volumetric alarm
protection.
For more information on the Alarm, refer to
the corresponding section.
Deadlocking
Deadlocking deactivates the exterior and
interior door controls, as well as the
central locking button on the dashboard.
The horn remains operational.
You must therefore never leave anyone inside
the vehicle when it is deadlocked.
If your vehicle is fitted with an alarm,
activation is confirmed by fixed

30
Access
Closing the windows and the sunroof
Maintaining pressure on the door handle or
the tailgate control allows the windows and,
depending on version, the sunroof to be closed
to the desired position.
This operation also closes the sunroof blind.
Make sure that no item or person could
prevent the correct closing of the
windows and sunroof.
Be particularly aware of children when
operating the windows.
Illumination of the direction indicators for a few
seconds signals:
– the locking of the vehicle for versions without
alarm,
– the activation of the alarm for other versions.
Depending on version, the door mirrors fold.
For safety and theft protection reasons,
never leave the electronic key in the
vehicle, even when you are close to it.
Accumulations (water, dust, grime, salt etc.) on the inner surface of the door
handle may affect detection.
If cleaning the inner surface of the door
handle using a cloth does not restore
detection, contact a CITROËN dealer or a
qualified workshop.
A sudden splash of water (stream of water,
high pressure jet washer, etc.) may be
Depending on version, the door mirrors unfold.
Selective unlocking
Driver door and fuel flap
► Pass your hand behind the driver door
handle.
►

T
o unlock the complete vehicle, pass your
hand behind the handle of one of the passenger
doors, with the electronic key close to the
passenger door, or press the tailgate opening
control with the electronic key close to the rear of
the vehicle.
The setting for selective unlocking of the driver
door is done in the vehicle configuration menu.
When unlocking the driver's door, flashing of the
direction indicators for a few seconds signals:
–

the selective unlocking of the vehicle for
versions without alarm,
–


the deactivation of the alarm for other
versions.
Depending on version, the door mirrors unfold.
Selective unlocking of the tailgate
► Press the tailgate opening control to unlock
just the boot.
The doors remain locked.
If selective unlocking of the tailgate is
deactivated, pressing this control also
unlocks the doors.
Selective unlocking of the tailgate can be
activated or deactivated via the Driving/
Vehicle menu of the touch screen.
If one of the doors or the boot is still open
or if the electronic key for the Keyless
Entry and Starting

system has been left inside
the vehicle, central locking will not take place.
However

, if the vehicle is fitted with an alarm,
it will be activated after 45
seconds.
If the vehicle is unlocked but the doors or
boot are not subsequently opened, the
vehicle will automatically lock itself again after
about 30
seconds. If the vehicle is fitted with
an alarm, it will be reactivated automatically.
The automatic door mirror folding/ unfolding function is configured via the
touch screen's
Driving / Vehicle menu.
As a safety measure, never leave the vehicle, even for a short time, without
taking the Keyless Entry and Starting
system’s electronic key with you.
Be aware of the risk of theft of the vehicle if
the key is present in one of the defined areas
while the vehicle is unlocked.
To preserve the battery charge in the electronic key and the vehicle's battery,
the "hands-free" functions are set to
hibernation mode after 21 days without use.
To restore these functions, press one of the
remote control buttons or start the engine with
the electronic key against the back-up reader.
For more information on starting with the
Keyless Entry and Starting system, refer to
the corresponding section.
Electrical interference
The electronic key may not operate if
close to certain electronic devices such as
telephones (switched on or on standby) or
laptop computers, strong magnetic fields, etc.
Locking the vehicle
Normal locking

► With the electronic key in recognition zone
A , press on the door handle of one of the front
doors (at the markings) or on the locking control
located on the tailgate (on the right of the
control).
It is not possible to lock the vehicle if one of the
electronic keys is left inside the vehicle.

11 5
Driving
6The vehicle stalls in STOP mode
All of the instrument panel warning lamps come
on if there is a fault.
The Stop & Start system requires a 12 V battery of specific technology and
specification.
All work concerning the battery must be
carried out only by a CITROËN dealer or a
qualified workshop.
Tyre under-inflation detection
This system automatically checks the pressures
of the tyres while driving.
It compares the information given by the wheel
speed sensors with reference values, which
must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.
The system triggers an alert as soon as it
detects a drop in the inflation pressure of one or
more tyres.
Under-inflation detection does not
replace the need for vigilance on the part
of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel) as well as before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
–

worsens road-holding,
–


lengthens braking distances,
–


causes premature wear of the tyres,
–


increases fuel consumption.
The inflation pressures specified for the vehicle can be found on the tyre pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
Checking tyre pressures
This check should be done when the
tyres are "cold" (vehicle stopped for 1 hour or
after a journey of less than 6 miles (10
km) at
moderate speeds).
Otherwise, add 0.3
bar to the pressures
shown on the label.
This system automatically checks the pressures of the tyres while driving.
It compares the information given by the wheel
speed sensors with reference values, which
must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.
The system triggers an alert as soon as it
detects a drop in the inflation pressure of one or
more tyres.
Under-inflation detection does not
replace the need for vigilance on the part
of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel), especially before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
–

worsens road-holding.
–


lengthens braking distances.
–


causes premature wear of the tyres.
–


increases energy consumption.
The inflation pressures defined for the vehicle can be found on the tyre pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
Checking tyre pressures
This check should be done when the
tyres are "cold" (vehicle stopped for 1 hour or
after a journey of less than 6 miles (10
km) at
moderate speeds).
Otherwise, add 0.3 bar to the pressures
shown on the label.

169
Practical information
7Closing
► Hold the bonnet and pull out the stay from the
support slot.
►

Clip the stay in its housing.
►


Lower the bonnet and release it near the end
of its travel.
►


Pull on the bonnet to check that it is locked
correctly

.
Because of the presence of electrical
equipment under the bonnet, it is strongly
recommended that exposure to water (rain,
washing, etc.) be limited.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following elements may
vary:
–

Air filter
.
–

Engine oil dipstick.
–


Engine oil filler cap.
Petrol engine

Diesel engine

1. Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery/Fuses
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
The Diesel fuel system operates under
very high pressure.
All work on this circuit must be carried out
only by a CITROËN dealer or a qualified
workshop.
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a CITROËN
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
Take care when working under the bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a CITROËN dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the

170
Practical information
Once the pressure has dropped, remove the cap
and top up to the required level.
Cooling of the engine when stopped
The engine cooling fan may start after
the engine has been switched off.
Take care with objects or clothing that
could be caught in the blades of the fan!
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a pre-mixed
product.
In winter (temperatures below zero), a fluid
containing an anti-freeze agent which is
appropriate for the temperature conditions
must be used in order to protect the system's
components (pump, tank, ducts, jets).
Filling with pure water is prohibited in all
circumstances (risk of freezing,
limescale, etc.).
Diesel fuel additive (Diesel
with particle filter)
or On reaching the minimum level
in the particle filter additive tank,
this warning lamp comes on fixed, accompanied
by an audible signal and a warning message.
ignition is switched on (for vehicles equipped
with an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
►

Grasp the dipstick by its coloured grip and
pull it out completely

.
►

Wipe the end of the dipstick using a clean,
lint-free cloth.


► Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil
level: the correct level is between marks A
(max)
and B (min).
Do not start the engine if the level is:
–

above mark
A: contact a CITROËN dealer or a
qualified workshop.
– below mark B : top up the engine oil
immediately.
Oil grade
Before topping up or changing the engine
oil, check that the oil is suitable for the engine
and complies with the recommendations in
the service schedule supplied with the vehicle
(or available from your CITROËN dealer and
qualified workshops).
Use of non-recommended oil may invalidate
the contractual warranty in the event of
engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding engine compartment
illustration.
►

Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
►


W
ait a few minutes before checking the level
again using the dipstick.
►

T
op up the level if necessary.
►

After checking the level, carefully screw the
oil filler cap back on

and replace the dipstick in
its tube.
The oil level indication displayed on the instrument panel when the ignition is
switched on is not valid for 30 minutes
following an addition of oil.
Brake fluid
The level of this fluid should be close to the "MAX" mark. If not, check the brake
pads for wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Clean the cap before removing it to refill.
Use only DOT4 brake fluid from a sealed
container.
Engine coolant
It is normal to top up this fluid between
two services.
The check and top-up must only be done with
the engine cold.
A level of coolant that is too low risks causing
major damage to the engine; the coolant level
must be close to the "MAX" mark without ever
going above it.
If the level is close to or below the " MIN” mark, it
is essential to top up.
When the engine is hot, the temperature of the
coolant is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.