2007 KIA Optima cooling

Driving your vehicle50
4
MAX/ A/C position
When you select the MAX
A/C mode while the fan is on,
the following system settings
will be made automatically;
 the air conditioning system
will be turned on.
 the recirculated air position will be selected.
 the face mode will be selected.
If you select MAX A/C mode, you will not be able to cancel
the A/C system operation, or
change the recirculated air
mode position.
Set the fan speed control knob to the desired speed
and rotate the temperature
control knob to the extreme
left position for maximum
cooling.
(outlet port: B, D)
MAX A/C
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Driving your vehicle
Air conditioning button
(if equipped) Push the A/C button to turn the air condi-
tioning system on (indicator light will illu-
minate). Push the button again to turn the
air conditioning system off.System operationVentilation1. Set the mode to the position.
2. Set the air intake control to the outside(fresh) air position.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
Heating1. Set the mode to the position.
2. Set the air intake control to the outside(fresh) air position.
3. Set the temperature control to the desired position.
4. Set the fan speed control to the desired speed.
5. If dehumidified heating is desired, turn the air conditioning system (if
equipped) on.
 If the windshield fogs up, set the mode
to the
,
position.
Air conditioning (if equipped) All Kia Air Conditioning Systems are
filled with environmentally friendly
R-134a refrigerant which is not damag-
ing to the ozone layer.
1. Start the engine. Push the air condi-
tioning button.
2. Set the mode to the position.
3. Set the air intake control to the outside air or recirculated air position. 4. Adjust the fan speed control and tem-
perature control to maintain maximum
comfort.
 When maximum cooling is desired, set
the temperature control to the extreme
left position, set the mode control to
the MAX A/C position, then set the fan
speed control to the highest speed.
✽ ✽
NOTICE• When using the air conditioning sys-
tem, monitor the temperature gauge
closely while driving up hills or in
heavy traffic when outside tempera-
tures are high. Air conditioning sys-
tem operation may cause engine over-
heating. Continue to use the blower
fan but turn the air conditioning sys-
tem off if the temperature gauge indi-
cates engine overheating.
• When opening the windows in humid weather air conditioning may create
water droplets inside the vehicle.
Since excessive water droplets may
cause damage to electrical equipment,
air conditioning should only be run
with the windows closed.
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Driving your vehicle54
4Air conditioning system opera-
tion tips  If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
 To help reduce moisture inside of win-
dows on rainy or humid days, decrease
the humidity inside the vehicle by oper-
ating the air conditioning system.
 During air conditioning system opera-
tion, you may occasionally notice a
slight change in engine speed as the
air conditioning compressor cycles.
This is a normal system operation
characteristic.
 Use the air conditioning system every
month if only for a few minutes to
ensure maximum system perform-
ance.
 When using the air conditioning sys-
tem, you may notice clear water drip-
ping (or even pudding) on the ground
under the passenger side of the vehi-
cle. This is a normal system operation
characteristic. 
Operating the air conditioning system
in the recirculated air position does
provide maximum cooling, however,
continual operation in this mode may
cause the air inside the vehicle to
become stale.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricantWhen the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a bad influ-
ence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized Kia dealer.✽ ✽
NOTICEWhen the performance of the air condi-
tioning system is reduced it is important
that the correct type and amount of oil
and refrigerant is used. Otherwise, dam-
age to the compressor and abnormal
system operation may occur.
CAUTION
The air conditioning system should
be serviced by an authorized Kiadealer. Improper service may cause serious injury to the person per-forming the service.

Driving your vehicle56
4Automatic operationThe automatic climate control system is
controlled by simply setting the desired
temperature.
The Full Automatic Temperature Control
(FATC) system automatically controls the
heating and cooling system as follows;
1. Push the AUTO button. It is indicated
by AUTO on the display. The modes,
fan speeds, air intake and air-condi-
tioning will be controlled automatically
based on temperature setting. 2. Turn the TEMP knob to set the desired
temperature.
If the temperature is set to the lowest
setting (Lo), the air conditioning sys-
tem will operate continuously.
3. To turn the automatic operation off, press any button except temperature
control button and AQS button (if
equipped). If you press the mode
selection button, air-conditioning but-
ton, defrost button, air intake control
button or fan speed button, the select-
ed function will be controlled manually
while other functions operate automat-
ically.
Regardless of the temperature setting,
when using automatic operation, the air
conditioning system will automatically
turn on to decrease the humidity inside
the vehicle, even if the temperature is set
to warm.
✽ ✽ NOTICENever place anything over the sensor
located on the instrument panel to
ensure better control of the heating and
cooling system.
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Driving your vehicle
Manual operation The heating and cooling system can be
controlled manually as well by pushing
buttons other than the AUTO button. In
this case, the system works sequentially
according to the order of buttons select-
ed.
When pressing any button except AUTO
button while automatic operation, the
functions of the buttons not selected will
be controlled automatically.
Press the AUTO button in order to con-
vert to full automatic control of the sys-
tem.
Temperature control knobThe temperature will increase to the maxi-
mum (HI) by turning the knob to the right
extremely.
The temperature will decrease to the mini-
mum (Lo) by turning the knob to the left
extremely.
When turning the knob, the temperature
will increase or decrease by 0.5°C/1°F.
When set to the lowest temperature set-
ting, the air conditioning will operate con-
tinuously. Temperature conversion
If the battery has been discharged or dis-
connected, the temperature mode will
display metric units.
This is normal condition and you can
switch the temperature mode between
Celsius to Fahrenheit as follows;
While depressing the OFF button,
depress the AUTO button for 3 seconds
or more. The display will change from
Celsius to Fahrenheit, or from Fahrenheit
to Celsius.
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Driving your vehicle62
4Air conditioning system opera-
tion tips  If the vehicle has been parked in direct
sunlight during hot weather, open the
windows for a short time to let the hot
air inside the vehicle escape.
 To help reduce moisture inside of win-
dows on rainy humid days, decrease
the humidity inside the vehicle by oper-
ating the air conditioning system.
 During air conditioning system opera-
tion, you may occasionally notice a
slight change in engine speed as the
air conditioning compressor cycles on.
This is a normal system operation
characteristics.
 Use the air conditioning system every
month if only for a few minutes to
ensure maximum system perform-
ance.
 When using the air conditioning sys-
tem, you may notice clear water drip-
ping (or even pudding) on the ground
under the passenger side of the vehi-
cle. This is a normal system operation
characteristics. 
Operating the air conditioning system
in the recirculated air position does
provide maximum cooling, however,
continual operation in this mode may
cause the air inside the vehicle to
become stale.
✽ ✽
NOTICEWhen using the air conditioning system,
monitor the temperature gauge closely
while driving up hills or in heavy traffic
when outside temperatures are high. Air
conditioning system operation may
cause engine overheating. Continue to
use the blower fan but turn the air con-
ditioning system off if the temperature
gauge indicates engine overheating.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricantWhen the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a bad influ-
ence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized Kia dealer.✽ ✽NOTICEWhen the performance of the air condi-
tioning system is reduced it is important
that the correct type and amount of oil
and refrigerant is used. Otherwise, dam-
age to the compressor and abnormal
system operation may occur.
CAUTION
The air conditioning system should
be serviced by an authorized Kia dealer. Improper service may causeserious injury.

463
Driving your vehicle
Manual climate control systemTo defog inside windshield 1. Select any fan speed.
2. Select desired temperature.
3. Select the or position.
4. The outside (fresh) air position will beselected.
If the outside (fresh) air position is not
selected automatically, press the corre-
sponding button manually.
To defrost outside windshield 1. Set the fan speed to the right position.
2. Set the temperature to the extreme hot position.
3. Select the position.
4. The outside (fresh) air position will be selected. 
For maximum defrosting, set the tem-
perature control to the extreme
right/hot position and the fan speed
control to the highest speed.
 If warm air to the floor is desired while
defrosting or defogging, set the mode
to the floor-defrost position.
 Before driving, clear all snow and ice
from the windshield, rear window, out-
side rear view mirrors, and all side win-
dows.
 Clear all snow and ice from the hood
and air inlet in the cowl grill to improve
heater and defroster efficiency and to
reduce the probability of fogging up
inside of the windshield.
WINDSHIELD DEFROSTING AND DEFOGGING
CAUTION
- Windshield
heating
Do not use the or position
during cooling operation inextremely humid weather. The dif-ference between the temperature ofthe outside air and that of the wind-shield could cause the outer sur-face of the windshield to fog up,causing loss of visibility. In thiscase, set the mode selection knobto the position and fan speedcontrol knob to the lower speed.
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Driving your vehicle64
4Automatic climate control systemTo defog inside windshield 1. Select desired temperature.
2. Press the defrost button ( ).
3. The outside (fresh) air position will be
selected automatically.
If the outside (fresh) air position and
higher fan speed are not selected auto-
matically, adjust the corresponding but-
ton or knob manually.
To defrost outside windshield 1. Set fan speed to the highest (extreme right) position.
2. Set temperature to the extreme hot (HI) position.
3. Press the defrost button ( ).
4. The outside (fresh) air position will be selected automatically. 
For maximum defrosting, set the tem-
perature control to the extreme highest
temperature setting and the fan speed
control to the highest speed.
 If warm air to the floor is desired while
defrosting or defogging, set the mode
to the floor-defrost position.
 Before driving, clear all snow and ice
from the windshield, rear window, out-
side rear view mirrors, and all side win-
dows.
 Clear all snow and ice from the hood
and air inlet in the cowl grill to improve
heater and defroster efficiency and to
reduce the probability of fogging up
inside of the windshield.
CAUTION
- Windshield
heating
Do not use the or position
during cooling operation in extremely humid weather. The dif-ference between the temperature of the outside air and that of the wind-shield could cause the outer sur-face of the windshield to fog up, causing loss of visibility. In thiscase, set the mode selection knob to the position and fan speedcontrol knob to the lower speed.
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