engine coolant KIA Optima 2008 2.G Owner's Manual

Your vehicle at a glance4 2ENGINE COMPARTMENT
OMG077002
1. Engine coolant reservoir ...................7-12
2. Engine oil filler cap............................7-11
3. Brake fluid reservoir ..........................7-14
4. Air cleaner .........................................7-18
5. Fuse box ...........................................6- 8
6. Negative battery terminal ...........6-4/7-21
7. Positive battery terminal .............6-4/7-21
8. Auto transaxle oil dipstick* ................7-16
9. Radiator cap......................................7-13
10. Engine oil dipstick ...........................7-11
11. Power steering fluid reservoir .........7-15
12. Windshield washer fluid reservoir ...7-17
* : if equipped

Driving your vehicle26 4Fuel gaugeThe fuel gauge indicates the approxi-
mate amount of fuel remaining in the fuel
tank.
Fuel tank capacity - 62 liters
(16.38 gallons)
The fuel gauge is supplemented by a low
fuel warning light, which will illuminate
when the fuel level has dropped to about
7~8 liters (1.8~2.1 gallons).
Engine temperature gauge This gauge shows the temperature of the
engine coolant when the ignition switch
is ON.
Do not continue driving with an overheat-
ed engine. If your vehicle overheats, refer
to “Overheating” in the Index.✽ ✽
NOTICEIf the gauge pointer moves beyond the
normal range area toward the “H” posi-
tion, it indicates overheating that may
damage the engine.
Trip computer (if equipped)Trip computer is a microcomputer-con-
trolled driver information system that dis-
plays information related to driving on the
LCD.
1MGH4920N
Type AType B

431
Driving your vehicle
Charging system
warning This warning light indicates a malfunction
of either the generator or electrical
charging system.
If the warning light comes on while the
vehicle is in motion:
1. Drive to the nearest safe location.
2. With the engine off, check the genera-
tor drive belt for looseness or break-
age.
3. If the belt is adjusted properly, a prob-
lem exists somewhere in the electrical
charging system. Have an authorized
Kia dealer correct the problem as soon
as possible.
Safety belt warning As a reminder to the driver and passen-
ger, safety belt warning light will blink for
approximately 6 seconds each time you
turn the ignition switch ON.
If the driver's lap/shoulder belt is not fas-
tened when the key is turned ON or if it is
disconnected after the key is turned ON,
the safety belt warning light will blink for
approximately 6 seconds.
If the driver’s lap/shoulder belt is not fas-
tened when you drive over 10 km/h, the
safety belt warning light will blink for 6
seconds. This cycle will repeat 11 times
with an interval of 24 seconds between
cycles.
If the system does not operate as
described, see an authorized Kia dealer
for assistance.
Shift pattern indicators
(if equipped)The individual indicators illuminate to
show the automatic transaxle shift lever
selection.Hot temperature
warning (if equipped)This warning light illuminates if the tem-
perature of the engine coolant is hot.
Do not continue driving with an overheat-
ed engine. If your vehicle overheats, refer
to “Overheating” in the Index.✽ ✽
NOTICEIf the hot temperature indicator illumi-
nates, it indicates overheating that may
damage the engine.

Driving tips4 5BEFORE DRIVING Before entering vehicle: Be sure that all windows, outside mir-
ror(s), and outside lights are clean.
Check the condition of the tires.
Check under the vehicle for any sign of
leaks.
Be sure there are no obstacles behind
you if you intend to back up.Necessary inspections Fluid levels, such as engine oil, engine
coolant, brake fluid, and washer fluid
should be checked on a regular basis,
with the exact interval depending on the
fluid. Further details are provided in
Section 7, Maintenance.
Before starting Close and lock all doors.
Position the seat so that all controls are
easily reached.
Adjust the inside and outside rearview
mirrors.
Be sure that all lights work.
Check all gauges.
Check the operation of warning lights
when the ignition switch is turned to
the ON position.
Release the parking brake and make
sure the brake warning light goes out.
For safe operation, be sure you are famil-
iar with your vehicle and its equipment.
WARNING
- Driving under
the influence of alcohol or
drugs
Drinking and driving is dangerous.
Drunk driving is the number one
contributor to the highway death
toll each year. Even a small amount
of alcohol will affect your reflexes,
perceptions and judgement. Driving
while under the influence of drugs
is as dangerous or more dangerous
than driving drunk.
You are much more likely to have a
serious accident if you drink or take
drugs and drive.
If you are drinking or taking drugs,
don’t drive. Do not ride with a driv-
er who has been drinking or taking
drugs. Choose a designated driver
or call a cab.

57
Driving tips
Driving at night Because night driving presents more
hazards than driving in the daylight, here
are some important tips to remember:
Slow down and keep more distance
between you and other vehicles, as it
may be more difficult to see at night,
especially in areas where there may
not be any street lights.
Adjust your mirrors to reduce the glare
from other driver's headlights.
Keep your headlights clean and prop-
erly aimed on vehicles not equipped
with the automatic headlight aiming
feature. Dirty or improperly aimed
headlights will make it much more diffi-
cult to see at night.
Avoid staring directly at the headlights
of oncoming vehicles. You could be
temporarily blinded, and it will take
several seconds for your eyes to read-
just to the darkness.
Driving in the rain Rain and wet roads can make driving
dangerous, especially if you’re not pre-
pared for the slick pavement. Here are a
few things to consider when driving in the
rain:
A heavy rainfall will make it harder to
see and will increase the distance
needed to stop your vehicle, so slow
down.
Keep your windshield wiping equip-
ment in good shape. Replace your
windshield wiper blades when they
show signs of streaking or missing
areas on the windshield.
If your tires are not in good condition,
making a quick stop on wet pavement
can cause a skid and possibly lead to
an accident. Be sure your tires are in
good shape.
Turn on your headlights to make it eas-
ier for others to see you.
Driving too fast through large puddles
can affect your brakes. If you must go
through puddles, try to drive through
them slowly.
If you believe you may have gotten
your brakes wet, apply them lightly
while driving until normal braking oper-
ation returns.
Winter driving We recommend that you carry emer-
gency equipment, including a window
scraper, windshield de-icer, a bag of
sand or salt, flares, a small shovel and
jumper cables.
Make sure you have sufficient ethyl-
ene-glycol coolant in the radiator.
Check the battery condition and
cables. Cold temperatures reduce the
output capability of any battery, so it
must be in excellent condition to pro-
vide enough winter starting power.
Make sure the engine oil viscosity is
suitable for cold weather.
Check the ignition system for loose
connections and damage.
Use antifreeze-formulated windshield
washer fluid. (Do not use engine
coolant antifreeze.)
Do not use the parking brake if it might
freeze. When parking, shift to 1 (First)
or R (Reverse) with a manual transaxle
or P (Park) with an automatic transaxle
and block the rear wheels.

Driving tips12 5✽
✽
NOTICEFailure to sue a trailer wiring harness
can damage your vehicle’s electrical sys-
tem.Driving on grades Reduce speed and shift to a lower gear
before you start down a long or steep
downgrade. If you don’t shift down, you
might have to use your brakes so much
that they would get hot and no longer
operate efficiently.
On a long uphill grade, shift down and
reduce your speed to around 70 km/h (45
mph) to reduce the possibility of engine
and transaxle overheating.
Operating your vehicle in D (Drive) when
towing a trailer will minimize heat build up
and extend the life of your transaxle.
Parking on hills Generally, you should not park your vehi-
cle, with a trailer attached, on a hill.
People can be seriously or fatally injured,
and both your vehicle and the trailer can
be damaged if they begin a downhill.
However, if you ever have to park your
trailer on a hill, here’s how to do it:1. Apply your brakes, but don’t shift into
gear.
2. Have someone place chocks (blocks
of wood or metal intended for this pur-
pose) under the downhill sides of the
trailer wheels.
3. When the wheel chocks are in place,
release the brakes until the chocks
absorb the load.
4. Reapply the brakes. Apply your park-
ing brake, and then shift to P (Park) for
an automatic transaxle.
5. Release the brakes.
CAUTION
When towing a trailer on steep
grades (in excess of 6%) pay close
attention to the engine coolant tem-
perature gauge to ensure the
engine does not overheat. If the
needle of the coolant temperature
gauge moves across the dial
towards “H” (HOT), pull over and
stop as soon as it is safe to do so,
and allow the engine to idle until it
cools down. You may proceed once
the engine has cooled sufficiently.
WARNING
- Parking on a
hill
Parking your vehicle on a hill with a
trailer attached is dangerous. It
could cause serious injury or death,
should the trailer break lose, or
should the trailer drag the vehicle
downhill.
WARNING
- Parking brake
It can be dangerous to get out of
your vehicle if the parking brake is
not firmly set or if the engine is still
running.
In either case the vehicle can move
suddenly. You or others could be
seriously or fatally injured.

513
Driving tips
When you are ready to leave after
parking on a hill 1. With the automatic transaxle in P
(Park), apply your brakes and hold the
brake pedal down while you:

and

2. Slowly remove your foot from the
brake pedal.
3. Drive slowly forward until the trailer is
clear of the chocks.
4. Stop and have someone pick up and
store the chocks.Maintenance when trailer towing Your vehicle will need service more often
when you regularly pull a trailer.
Important items to pay particular atten-
tion to include engine oil, automatic
transaxle fluid, axle lubricant and cooling
system fluid. Brake condition is another
important item to frequently check. Each
item is covered in this manual, and the
Index will help you find them quickly. If
you’re trailering, it’s a good idea to review
these sections before you start your trip.Don’t forget to also maintain your trailer
and hitch. Follow the maintenance
schedule that accompanied your trailer
and check it periodically. Preferably, con-
duct the check at the start of each day’s
driving. Most importantly, all hitch nuts
and bolts should be tight.
✽ ✽
NOTICE• Due to higher load during trailer
usage, overheating might occur in hot
days or during uphill driving. If the
coolant gauge indicates over-heating,
switch off the A/C and stop the vehicle
in a safe area to cool down the engine.
• When towing check transaxle fluid
more frequently.
• If your vehicle is not equipped with
the air conditioner, you should install
a condenser fan to improve engine
performance when towing a trailer.
If you do decide to pull a trailerHere are some important points if you
decide to pull a trailer:
Consider using a sway control. You can
ask a hitch dealer about sway control.
After your odometer indicates 800 km
(500 miles) or more, you can tow a
trailer. For the first 800 km (500 miles)
that you tow a trailer, don’t drive over
80 km/h (50 mph) and don’t make
starts at full throttle. This helps your
engine and other parts of your vehicle
“wear” in at the heavier loads.
Always drive your vehicle at a moder-
ate speed (less than 100 km/h (60
mph)).
On a long uphill grade, do not exceed
70 km/h (45 mph) or the posted towing
speed limit, whichever is lower.
The important considerations have to
do with weight:
Weight of the trailer
How heavy can a trailer safely be? It
should never weigh more than the maxi-
mum trailer weight with trailer brakes. But
even that can be too heavy. If you feel that
the trailer is adversely affecting the move-
ment of your vehicle, reduce your speed,
avoid uneven or winding roads, avoid
roads with steep grades, and/or lighten
your trailer load.

In case of an emergency2 6ROAD WARNING Hazard warning flasher The hazard warning flasher serves as a
warning to other drivers to exercise
extreme caution when approaching,
overtaking, or passing your vehicle. It
should be used whenever emergency
repairs are being made or when the vehi-
cle is stopped near the edge of a road-
way.
Depress the flasher switch with the igni-
tion switch in any position. The flasher
switch is located in the center console
switch panel. All turn signal lights will
flash simultaneously.• The hazard warning flasher operates
whether your vehicle is running or not.
 The turn signals do not work when the
hazard flasher is on.
 Care must be taken when using the
hazard warning flasher while the vehi-
cle is being towed.If your temperature gauge indicates over-
heating, if you experience a loss of
power, or if you hear a loud knocking or
pinging noise, the engine has probably
overheated. Should any of these symp-
toms occur, use the following procedure:
1. Turn on the hazard warning flasher,
then drive to the nearest safe location
and stop your vehicle; set the automat-
ic transaxle in P (Park), or shift the
manual transaxle to N (Neutral) and
apply the parking brake.
2. Make sure the air conditioner is off.
3. If coolant or steam is boiling out of the
radiator, stop the engine and call an
authorized Kia dealer for assistance.
If coolant is not boiling out, allow the
engine to idle and open the hood to
permit the engine to cool gradually.
If the temperature does not go down
with the engine idling, stop the engine
and allow sufficient time for it to cool.
OVERHEATING
OMG065001

63
In case of an emergency
4. The coolant level should then be
checked. If the level in the reservoir is
low, look for leaks at the radiator hoses
and connections, heater hoses and
connections, radiator, and water
pump. If you find a major leak or anoth-
er problem that may have caused the
engine to overheat, do not operate the
engine until it has been corrected. Call
an authorized Kia dealer for assis-
tance. If you do not find a leak or other
problem, carefully add coolant to the
reservoir.If the engine frequently overheats, have
the cooling system checked and repaired
by an authorized Kia dealer.
Jump starting Jump starting can be dangerous if done
incorrectly. Therefore, to avoid harm to
yourself or damage to your vehicle or
battery, follow the jump starting proce-
dures. If in doubt, we strongly recom-
mend that you have a competent techni-
cian or towing service jump start your
vehicle.✽ ✽
NOTICEUse only a 12-volt jumper system. You
can damage a 12-volt starting motor,
ignition system, and other electrical
parts beyond repair by use of a 24-volt
power supply (either two 12-volt batter-
ies in series or a 24-volt motor generator
set).
WARNING
- Removing
radiator cap
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and steam
may blow out under pressure. This
could cause serious injury.
EMERGENCY STARTING
WARNING
- Battery
• Keep all flames or sparks away
from the battery. The battery pro-
duces hydrogen gas which may
explode if exposed to flame or
sparks.
 Do not attempt to jump start the
vehicle if the discharged battery
is frozen or if the electrolyte level
is low; the battery may rupture or
explode.
WARNING
- Battery
Never attempt to check the elec-
trolyte level of the battery as this
may cause the battery to rupture or
explode causing serious injury.

73
Maintenance
MAINTENANCE SCHEDULE Engine control system
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
Kilometers or time in months, whichever comes first
× 1,000 km 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128
# Months 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
Engine oil & engine oil filter (1) R R R R R RRRRRRRR RRR
Drive belts (tension) I I I I
Cooling system hoses & connections I I I I I
Engine coolant (1) I I I I I RIIIIIRI III
Fuel filterRR
Fuel tank cap, lines, EVAP canister and hoses
II
Fuel tank air filter I R I R I
Air cleaner element (2) I I I I I RIIIIIRI III
Ignition wires I I
Spark plugs (Iridium coated)
Idle speed I I I I I
Engine timing belt 2.7 EngineR
Valve clearance (3)I
Replace every 160,000 km