Eco-Driving; Manual Air Conditioning - CITROEN C4 Handbook

Ease of use and comfort
Servicing the ventilation and air
conditioning system
► Ensure that the passenger compartment
filter is in good condition and have the filter
elements replaced regularly.
We recommend using a composite passenger
compartment filter. Its specific active additive
helps protect against polluting gases and bad
smells.
► To ensure correct operation of the
air conditioning system, have it checked
according to the recommendations in the
Manufacturer's service schedule.
Stop & Start
The heating and air conditioning systems
only operate when the engine is running.
Temporarily deactivate the Stop & Start
system to maintain a comfortable temperature
in the passenger compartment.
For more information on the Stop &
Start system, refer to the corresponding
section.
ECO driving mode
Selecting this mode reduces electrical
energy consumption, but restricts the
performance of the heating and air
conditioning systems, although it does not
deactivate them.
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Manual air conditioning

1. Adjusting the temperature
Air conditioning on/off
2. Adjusting the air flow
System switch-off
3. Adjusting the air distribution
4. Interior air recirculation
5. Rear screen demisting/de-icing
The air conditioning system only operates with
the engine running.
Adjusting the temperature
► Turn the knob 1 from blue (cold) to red (hot).
Air flow adjustment
► Turn the thumbwheel 2 to obtain a sufficient
air flow to ensure your comfort.
If the air flow control is in
the minimum position (system
deactivated), the temperature in the vehicle
will no longer be controlled. A slight flow of air
can still be felt, due to the forward movement
of the vehicle.
Adjusting the air distribution
Windscreen and side windows
Central and side air vents
Footwells
► Press one of the buttons 3 to adjust the air
distribution inside the passenger compartment.
The lighting of the button indicates that air
is being blown in the specified direction. It
is possible to activate the following buttons
simultaneously:
– Central and side air vents + footwells.
– Windscreen and side windows + footwells.
Air conditioning on/off
The air conditioning system is designed to
operate effectively in all seasons, with the
windows closed.
It is used to:
– lower the temperature in summer,
– increase the effectiveness of demisting in
winter, above 3°C.
► Press knob 1 to turn the air conditioning on/
off.
When the system is activated, the indicator lamp
comes on.