check engine KIA Optima 2006 2.G Owner's Guide

5-9
 If you believe you may have gottenyour brakes wet, apply them lightly
while driving until normal braking
operation returns.WINTER DRIVING We recommend that you carryemergency equipment. Some things
you might include are tire chains, a
window scraper, windshield de-icer,
a bag of sand or salt, flares, a small
shovel and jumper cables.
 Make sure you have sufficient ethylene glycol coolant in the
radiator.
 Check the battery condition and cables. Cold temperatures reduce the
capacity of any battery, so it must be
in top shape to provide 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 and make sure you have
sufficient fluid for your trip. (Do not
use engine coolant antifreeze.)
 Do not use the parking brake if it might freeze. This is most likely to
happen after driving in slushy or wet
conditions and temperatures drop into
the freezing range. When parking,
shift to P (Park) with automatic
transaxle, or to 1 (First) or R
(Reverse) with a manual transaxle
and block the rear wheels.
SNOW TIRESWhen snow tires are used, select the size
and construction specified on the Tire
Pressure Label. It is strongly
recommended that snow tires be used on
all four wheels, or poor handling may
result. Snow tires should not be operated
at speeds exceeding 120 km/h (75 mph).
These tires should be inflated 4 psi (28
kPa, 0.3 kg/cm
2) above the recommended pressures shown on the Tire
Specification/Pressure Label, but inflation
should never exceed the maximum cold-
tire pressure shown on the tire sidewalls.
Do not install studded tires without first
checking local, provincial and municipal
regulations for possible restrictions
against their use.
WARNING - Snow Tire
Size
Snow tires should be
equivalent in size and type to
the vehicle’s standard tires.
Otherwise, the safety and
handling of your vehicle may be
adversely affected.
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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.
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
another problem that may have
caused the engine to overheat, do not
operate the engine until the problem
has been corrected. Call an
Authorized Kia Dealer for assistance.
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.
EMERGENCY STARTINGJUMP STARTINGJump starting can be dangerous if done
incorrectly. Therefore, to avoid harm to
yourself or damage to your vehicle or
battery, follow the jump starting
procedures on the next page. If in doubt,
we strongly recommend that you have a
competent technician or towing service
jump start your vehicle.
6-3
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.
✻
NOTICE
Use only a 12volt jumper system.
You can damage a 12volt starting
motor, ignition system, and other
electrical parts by using a 24-volt
power supply (two 12-volt batteries
in series or a 24-volt motor
generator set).
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4. Turn off all unnecessary electrical
loads.
5. Connect the jumper cables in the exact
sequence shown in the illustration on
the previous page.
First, connect one end of a jumper
cable to the positive terminal (+) of
the discharged battery , then the
other end of the same cable to the
positive terminal (+) on the booster
battery, . Next, connect one end of
the other jumper cable to the negative
terminal (-) of the booster battery ,
then the other end to a solid,
stationary, metallic point (for
example, the engine lifting bracket) 
away from the battery. Do not connect
the jumper cable to or near any part
that moves when the engine is
cranked. Do not connect the jumper
cable from the negative terminal (-) of
the booster battery to the negative
terminal (-) of the discharged battery.Do not allow the jumper cables to
contact anything except the correct
battery terminals or the correct
ground. Do not lean over the battery
when making connections.
6. Start the engine of the vehicle with
the booster battery and run it at 2,000
rpm. Then, start the engine of the
vehicle with the discharged battery.
If the cause of your battery discharging
is not apparent (for example, having left
the lights on accidentally), you should
have your vehicle checked by an
Authorized Kia Dealer.
PUSH-STARTINGA vehicle equipped with an automatic
transaxle cannot be started by pushing. A
vehicle equipped with a manual transaxle
should not be push-started because it
could damage the emission control
system. Follow the directions for jump
starting.
IN CASE OF EMERGENCY
6-6
CAUTION
Never tow a vehicle to start it. A
sudden surge forward when the
engine starts could cause a collision
with the tow vehicle.
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ELECTRICAL CIRCUIT
PROTECTIONFUSESA vehicle’s electrical system is protected
from electrical overload damage by fuses.
This vehicle has two fuse panels, one
located in the driver’s side kick panel, the
other in the engine compartment near the
battery. A fuse panel chart is provided
later in this section.If any of your vehicle’s lights,
accessories, or controls do not work,
check the appropriate circuit fuse. If a
fuse has blown, the element inside the
fuse will be melted. Always replace a
blown fuse with one of the same rating.
If the replacement fuse blows out, this
indicates an electrical problem. Avoid
using the system involved and
immediately consult an Authorized Kia
Dealer.
Two kinds of fuses are used: standard for
lower amperage rating, and main for
higher amperage ratings.
FUSE REPLACEMENTIf the electrical system does not work,
first check the driver’s side fuse panel.
6-7
MMSA6003
Standard
Main fuse
Nomal Blown Nomal Blown
WARNING - Fuse
Replacement
 Never replace a fuse with
anything but another fuse of
the same type and rating.
 A higher capacity fuse could
cause damage and possibly
a fire.
 Never install a wire in place
of the proper fuse - even as a
temporary repair. It may
cause extensive wiring
damage and possibly a fire.
 Do not use a screwdriver or
any other metal object to
remove fuses because it may
cause a short circuit and
damage the system.
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1. Turn the ignition switch and all other
switches off.
2. Pull the suspected fuse straight out.
Use the removal tool provided on the
main fuse box in the engine
compartment. Refer to the fuse panel
chart on the fuse panel cover to
identify the likely problem fuse or
electrical circuit.
3. Check the removed fuse; replace if it
is blown.
Four (4) spare fuses are provided in the
engine compartment fuse panel cover.4. Push in a new fuse of the same
rating, and make sure it fits tightly in
the clips.
If it fits loosely, consult an
Authorized Kia Dealer.
If you do not have a spare, use a fuse of
the same rating from a circuit you may
not need for operating the vehicle, such
as the radio or clock (Room) fuse.
If the headlights or other electrical
components do not work and the fuses
are OK, check the fuse box in the engine
compartment. If a fuse is blown, it must
be replaced.
1. Turn the ignition switch and all other
switches OFF.
2. Remove the fuse box cover by
turning the plastic knob located in the
cover counterclockwise until the
cover can be removed.
3. Check the fuses. If one is blown,
replace it with a new one of the same
rating.
IN CASE OF EMERGENCY
6-8
MMSA6020
MMSA6005
Fuse box
CAUTION
After checking the fuse box in the
engine compartment, please
securely install the fuse box cover.
If not, some electrical failures may
occur causing from the water.
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7-3
MAINTENANCE SCHEDULEEngine Control systemI: Inspect these items and their related parts. If necessary,
Check the engine oil and coolant levels every week.
R: Replace or change.
NOTE :
Check the engine oil and coolant levels every week.
Kilometers or Time in Months, Whichever Comes First
km 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128Months 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64
Engine oil & engine oil filter R R R R R R R R R R R R R R R R
Drive belts (tension)III I
Cooling system hoses & connectionsIIII I
Engine coolant II IIIRIIIIIRIIII
Fuel filterR
Fuel tank cap, lines, EVAP canister and hosesII
Fuel tank air filterIRIR I
Air cleaner element II IIIRIIIIIRIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM
x 1,000
(1)
(1)
(2)
(1) Refer to the lubricant and coolant specifications in the Owner’s Manual.
(2) More frequent maintenance is required if driving under dusty conditions.
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MAINTENANCE
7-8OWNER MAINTENANCEOWNER MAINTENANCE
SCHEDULEA qualified service technician should
perform these vehicle inspections at the
indicated intervals to ensure safe and
dependable operation.
Bring any problem to the attention of an
Authorized Kia Dealer as soon as
possible.WHEN REFUELING, CHECK:• Engine oil level
• Engine coolant level
• Brake and clutch fluid level
• Washer fluid level
AT LEAST MONTHLY• Tire inflation pressuresEVERY 6 MONTHS, CHECK:• Power steering fluid level
• Automatic transaxle fluid level
You can do the following scheduled
maintenance items if you have some
mechanical ability, a few basic tools and
if you closely follow the directions in
this manual.OWNER MAINTENANCE
PRECAUTIONSImproper or incomplete service may
result in problems. This section gives
instructions only for the maintenance
items that are easy to perform.As explained earlier in this section, several
procedures can be done only by a qualified
service technician with special tools.
Improper owner maintenance during the
warranty period may affect warranty
coverage. For details, read the separate
Kia Warranty and Consumer Information
Manual provided with the vehicle. If
you’re unsure about any servicing or
maintenance procedure, have it done by
an Authorized Kia Dealer.
CAUTION
Be careful when checking your
engine coolant level. The engine
compartment will be hot and you
could be burned.
WARNING - Maintenance
Work
Performing maintenance work
on a vehicle can be dangerous.
You can be seriously injured
while performing some
maintenance procedures. If you
lack sufficient knowledge,
experience or the proper tools
and equipment to do the work,
have it done by a qualified
technician.
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MAINTENANCE
7-12ENGINE OIL AND OIL
FILTERChecking the Engine Oil Level
1. Be sure the vehicle is on level
ground.
2. Start the engine and allow it to reach
normal operating temperature.
3. Turn the engine off and wait a few
minutes for the oil to return to the oil
pan.
4. Pull out the dipstick, wipe it clean,
and re-insert it fully.
5. Pull the dipstick out again and check
the level. The level should be
between F and L.
If it is near or at L, add enough oil to
bring the level to F. Do not overfill.
The distance between L and F on the
dipstick represents 0.85 US qt. (0.7 liter).
Use only the specified engine oil.(Refer to “Recommended Lubricants”
later in this section)
CHANGING THE ENGINE
OIL AND FILTERChange engine oil and filter according to
the Scheduled Maintenance earlier in this
section.
1. Warm the engine up for a few
minutes and then turn it off. Remove
the oil filler cap.
2. Drain the oil into a suitable container
after removing the oil filler cap and
drain plug.
MMSA7003
WARNING - Engine Oil
 Continuous contact with
USED engine oil has caused
skin cancer in laboratory
mice. Protect your skin by
washing with soap and
water.
 Keep all engine oil out of the
reach of children.
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7-13
3. Remove the engine oil filter with an
oil filter wrench.
4. Use a clean rag to clean the oil filter
mounting surface on the engine.
5. Apply a small amount of engine oil
to the new oil filter O-ring seal.6. Install the oil filter and tighten it.
(Refer to the oil filter caution label
for tightening instructions.)
7. Replace the drain plug tightly after
the oil has thoroughly drained.
8. Refill the engine with new oil to the
F mark on the dipstick. Do not
overfill.
9. Re-install the oil filler cap securely.
10. Start the engine and inspect around
the oil filter seal for leaks.
Stop the engine.
Check the oil level and fill to the F
mark, if necessary.
OIL CAPACITY
2400cc Engine
- Without filter change : 4.0 liters
- With filter change : 4.3 liters

2700cc Engine
- Without filter change : 4.5 liters
- With filter change : 4.8 liters
Use only the specified engine oil. (Refer
to “Recommended Lubricants” later in
this section)
CAUTION
Both the oil and engine are hot. Do
not burn yourself.✻
NOTICE
When installing the replacement oil
filter, do not allow the oil filter
gasket to remain on the oil filter
mounting surface. This will cause
oil leakage and engine damage.
Remove the old gasket completely
so that a new gasket will properly
seat and seal.
✻
NOTICE
• Follow these instructions
carefully. An improper oil filter
installation can cause oil leakage
and engine damage.
• Although oil filters may have the
same external appearance, their
internal designs differ
significantly. These filters are not
interchangeable. To avoid
potential engine damage, use only
the specified filter. Consult an
Authorized Kia Dealer.
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MAINTENANCE
7-14ENGINE COOLING
SYSTEMThe cooling system is a high-pressure
type with a reservoir and is filled with
year-round antifreeze coolant at the
factory.
Check the antifreeze protection and
coolant level at least once a year, at the
beginning of the winter season, and
before traveling to a colder climate.
CHECKING THE
COOLANT LEVEL
WARNING - Removing
Radiator Cap
 Never attempt to remove the
radiator cap while the engine
is operating. Doing so might
lead to cooling system
and/or engine damage and
could result in serious
personal injury from
escaping hot coolant or
steam.
 Turn the engine off and wait
until it has cooled. Even then,
use extreme care when
removing the radiator cap.
Wrap a thick towel around it,
and turn it counterclockwise
slowly to the first stop. Step
back while the pressure is
released from the cooling
system. When you are sure
all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning
counterclockwise to remove
it.
 Even if the engine is not
operating, do not remove the
radiator cap or the drain plug
while the engine and radiator
are hot. Hot coolant and
steam may still blow out
under pressure, causing
serious injury.
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