2009 KIA Optima Engine

Maintenance18
7
G070200AUNChanging the coolantHave coolant changed by an authorized
KIA dealer according to the Maintenance
Schedule at the beginning of this section.
WARNING -
Radiator cap
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injury.
CAUTION
Put a thick cloth or fabric around
the radiator cap before refilling the coolant in order to prevent thecoolant from overflowing into engine parts such as the generator.
WARNING -
Coolant
Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control or damage
to paint and body trim.
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719
Maintenance
BRAKE FLUIDG080100AMGChecking the brake fluid level Check the fluid level in the reservoir peri-
odically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap and
adding brake/clutch fluid, clean the area
around the reservoir cap thoroughly to
prevent brake/clutch fluid contamination.
If the level is low, add fluid to the MAX
level. The level will fall with accumulated
mileage. This is a normal condition asso-
ciated with the wear of the brake linings.
If the fluid level is excessively low, have
the brake system checked by an author-
ized KIA dealer.
Use only the specified brake/clutch fluid.(Refer to “Recommended lubricants orcapacities” in section 8.)
Never mix different types of fluid.
WARNING -
Brake fluid
When changing and adding brake/
clutch fluid, handle it carefully. Do
not let it come in contact with your
eyes. If brake fluid should come in
contact with your eyes, immediate-
ly flush them with a large quantity
of fresh tap water. Have your eyes
examined by a doctor as soon as
possible.
WARNING -
Loss of brake
fluid
In the event the brake system
requires frequent additions of fluid,
the vehicle should be inspected by
an authorized KIA dealer.
CAUTION
Do not allow brake fluid to contactthe vehicle's body paint, as paintdamage will result. Brake fluid,which has been exposed to open air for an extended time should neverbe used as its quality cannot be guaranteed. It should be disposedof properly. Don't put in the wrong kind of fluid. A few drops of miner-al-based oil, such as engine oil, inyour brake system can damage brake system parts.
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Maintenance20
7POWER STEERING FLUID (IF EQUIPPED)G090100AMGChecking the power steering fluid
level With the vehicle on level ground, check
the fluid level in the power steering reser-
voir periodically. The fluid should be
between MAX and MIN marks on the
side of the reservoir at the normal tem-
perature.
Before adding power steering fluid, thor-
oughly clean the area around the reser-
voir cap to prevent power steering fluid
contamination.
If the level is low, add fluid to the MAX
level.
✽ ✽
NOTICE - (if equipped)Check that the fluid level is in the
"HOT" range on the reservoir. If the
fluid is cold, check that it is in the
"COLD" range (if equipped).In the event the power steering system
requires frequent addition of fluid, the
vehicle should be inspected by an
authorized KIA dealer.
Use only the specified power steering
fluid. (Refer to "Recommended lubricantsor capacities" in section 8.)G090200AENChecking the power steering
hoseCheck the connections for oil leaks, dam-
age and twists in the power steering
hose before driving.
CAUTION
To avoid damage to the power steering pump, do not operate thevehicle for prolonged periods with a low power steering fluidlevel.
Never start the engine when the reservoir tank is empty.
When adding fluid, be careful that dirt does not get into the tank.
Too little fluid can result in increased steering effort and/ornoise from the power steeringsystem.
The use of the non-specified fluid could reduce the effectiveness ofthe power steering system andcause damage to it.
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721
Maintenance
AUTOMATIC TRANSAXLE FLUID (IF EQUIPPED)G100100AMGChecking the automatic transaxle
fluid level The automatic transaxle fluid level
should be checked regularly.
Keep the vehicle on the level ground with
the parking brake applied and check the
fluid level according to the following pro-
cedure.
1. Place the shift lever in N (Neutral)position and confirm the engine is run-
ning at normal idle speed. 2. After the transaxle is warmed up suffi-
ciently (fluid temperature 70~80°C
(158~176°F), for example by 10 min-
utes usual driving, move the shift lever
through all positions then place the
shift lever in “N (Neutral) or P (Park)”
position.
3. Confirm that the fluid level is in “HOT”range on the level gauge. If the fluid
level is lower, add the specified fluid
from the fill hole. If the fluid level is
higher, drain the fluid from the drain
hole.
4. If the fluid level is checked in cold con- dition (fluid temperature 20~30°C
(68~86°F) add the fluid to “C” (COLD)
line and then recheck the fluid level
according to the above step 2.
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Maintenance22
7
✽
✽
NOTICE“C” (COLD) range is for reference only
and should NOT be used to determine
transaxle fluid level.✽ ✽NOTICENew automatic transaxle fluid should be
red. The red dye is added so the assem-
bly plant can identify it as automatic
transaxle fluid and distinguish it from
engine oil or antifreeze. The red dye,
which is not an indicator of fluid quali-
ty, is not permanent. As the vehicle is
driven, the automatic transaxle fluid
will begin to look darker. The color may
eventually appear light brown.
Therefore, have an authorized KIA
dealer change the automatic transaxle
fluid according to the Scheduled
Maintenance at the beginning of this
section.Use only the specified automatic
transaxle fluid. (Refer to “Recommended
lubricants and capacities” in section 8.)
G100200AUNChanging the automatic transaxle
fluidHave automatic transaxle fluid changed
by an authorized KIA dealer according to
the Maintenance Schedule at the begin-
ning of this section.
WARNING -
Transaxle fluid
The transaxle fluid level should be
checked when the engine is at nor-
mal operating temperature. This
means that the engine, radiator,
radiator hose and exhaust system
etc., are very hot. Exercise great
care not to burn yourself during
this procedure.
WARNING
- Parking brake
To avoid sudden movement of the
vehicle, apply parking brake and
depress the brake pedal before
moving the shift lever.
CAUTION
Low fluid level causes transaxle
slippage. Overfilling can causefoaming, loss of fluid and transaxle malfunction.
The use of a non-specified fluid could result in transaxle malfunc-tion and failure.

Maintenance24
7AIR CLEANER G160100AUN-ECFilter replacement It must be replaced when necessary, and
should not be cleaned and reused. Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extremely
dusty or sandy areas, replace the ele-ment more often than the usual recom-mended intervals.
G170100AUN-ECFilter inspectionIf the vehicle is operated in severely air-
polluted cities or on dusty rough roads for
a long period, it should be inspected
more frequently and replaced earlier.
When you replace the climate control air
filter, replace it performing the following
procedure, and be careful to avoid dam-
aging other components.
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CAUTION
Do not drive with the air cleaner removed; this will result in exces-sive engine wear.
Use a KIA genuine part. Use of non-genuine parts could damagethe air flow sensor.
CLIMATE CONTROL AIR FILTER

Maintenance28
7
G190200AUNBattery recharging Your vehicle has a maintenance-free,
calcium-based battery.
If the battery becomes discharged in a
short time (because, for example, the
headlights or interior lights were left on
while the vehicle was not in use),
recharge it by slow charging (trickle)
for 10 hours.
If the battery gradually discharges because of high electric load while the
vehicle is being used, recharge it at 20-
30A for two hours.
(Continued)
When lifting a plastic-cased bat-tery, excessive pressure on the
case may cause battery acid to
leak, resulting in personal injury.
Lift with a battery carrier or with
your hands on opposite corners.
Never attempt to recharge the battery when the battery cables
are connected.
The electrical ignition system works with high voltage. Never
touch these components with the
engine running or the ignition
switched on.
Failure to follow the above warn-
ings can result in serious bodily
injury or death.
CAUTION
When you don’t use the vehicle for a long time in the low temper-ature area, separate the batteryand keep it indoors.
Always charge the battery fully to prevent the battery case dam-aged in low temperature area.
WARNING
- Recharging battery
When recharging the battery,
observe the following precautions:
The battery must be removed
from the vehicle and placed in an
area with good ventilation.
Do not allow cigarettes, sparks, or flame near the battery.
Watch the battery during charg- ing, and stop or reduce the charg-
ing rate if the battery cells begin
gassing (boiling) violently or if
the temperature of the electrolyte
of any cell exceeds 49°C (120°F).
Wear eye protection when check- ing the battery during charging.
(Continued)

729
Maintenance
G190300AUNReset itemsItems should be reset after the battery
has been discharged or the battery has
been disconnected.
Auto up/down window (See section 4)
Sunroof (See section 4)
Trip computer (See section 4)
Climate control system (See section 4)
Clock (See section 4)
Audio (See section 4)
(Continued)
Disconnect the battery charger in the following order.
1. Turn off the battery charger main switch.
2. Unhook the negative clamp from the negative battery terminal.
3. Unhook the positive clamp from the positive battery terminal.
Before performing maintenance or recharging the battery, turn off
all accessories and stop the
engine.
The negative battery cable must be removed first and installed
last when the battery is discon-
nected.