CITROEN C4 Owner's Handbook Manual page 64

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RECOMMENDATIONS FOR VENTILATION AND AIR
CONDITIONING
In order for these systems to be fully effective, follow the operation and
maintenance guidelines below:
 To obtain an even air distribution, take care not to obstruct the exterior
air intake grilles located at the base of the windscreen, the nozzles, the
vents and the air outlets, as well as the air extractor located in the boot.
3
 Do not cover the sunshine sensor, located on the dashboard; this is
used for regulation of the air conditioning system.
 Operate the air conditioning system for at least 5 to 10 minutes, once or
twice a month to keep it in perfect working order.
 Ensure that the passenger compartment fi lter is in good condition and
have the fi lter elements replaced regularly.
We recommend the use of a combined passenger compartment fi lter.
Thanks to its special active additive, it contributes to the purifi cation of
the air breathed by the occupants and the cleanliness of the passenger
compartment (reduction of allergic symptoms, bad odours and greasy
deposits).
 To ensure correct operation of the air conditioning system, you are also
advised to have it checked regularly as recommended in the mainte-
nance and warranty guide.
 If the system does not produce cold air, switch it off and contact a
CITROËN dealer or a qualifi ed workshop.
When towing the maximum load on a steep gradient in high temperatures,
switching off the air conditioning increases the available engine power and
so improves the towing ability.
Stop & Start
The heating and air conditioning systems only work when the engine is
running. To maintain a comfortable temperature in the passenger compart-
ment, you can temporarily deactivate the Stop & Start system (see the
corresponding section).
62
C O M F O R T
If after an extended stop in sun-
shine, the interior temperature is
very high, fi rst ventilate the pas-
senger compartment for a few
moments.
Put the air fl ow control at a set-
ting
high
enough
to
quickly
change the air in the passenger
compartment.
The
air
conditioning
system
does not contain chlorine and
does not present any danger to
the ozone layer.
The condensation created by
the air conditioning results in a
discharge of water under the ve-
hicle which is perfectly normal.

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