KIA Optima 2008 2.G Owner's Manual

623
In case of an emergency
To prevent the jack, jack handle,
wheel lug nut wrench and spare tire
from rattling while the vehicle is in
motion, store them properly.
CAUTION
Your vehicle has metric threads
on the wheel studs and nuts.
Make certain during wheel
removal that the same nuts
removed are reinstalled - or, if
replaced, that nuts with metric
threads and the same chamfer
configuration are used.
Installation of a non-metric
thread nut on a metric stud or
vice-versa will not secure the
wheel to the hub properly and
will damage the stud so that it
must be replaced.
Note that most lug nuts do not
have metric threads. Be sure to
use extreme care in checking
for thread style before installing
aftermarket lug nuts or wheels.
If in doubt, consult an
Authorized Kia Dealer.
WARNING
- Wheel studs
If the studs are damaged, they
may lose their ability to retain
the wheel. This could lead to the
loss of the wheel and a collision
resulting in serious injuries.
WARNING -
Inadequate
spare tire pressure
Check the inflation pressures as
soon as possible after installing
the spare tire. Adjust it to the
specified pressure, if necessary.
Refer to Section 8, Specifications.

7
Maintenance services / 7-2
Maintenance schedule / 7-3
Owner maintenance / 7-7
Engine compartment / 7-9
Engine oil / 7-11
Engine cooling system / 7-12
Brake fluid / 7-14
Drive belts / 7-15
Power steering / 7-15
Automatic transaxle / 7-16
Lubricants and fluids / 7-17
Air cleaner / 7-18
Climate control air filter / 7-19
Wiper blades / 7-20
Battery / 7-21
Tires and wheels / 7-24
Lubricant specifications / 7-35
Exterior care / 7-36
Interior care / 7-38
Maintenance

Maintenance2 7MAINTENANCE SERVICESYou should exercise the utmost care to
prevent damage to your vehicle and
injury to yourself whenever performing
any maintenance or inspection proce-
dures.
Should you have any doubts concerning
the inspection or servicing of your vehi-
cle, we strongly recommend that you
have an authorized Kia dealer perform
this work.
An authorized Kia dealer has factory-
trained technicians and genuine Kia
parts to service your vehicle properly. For
expert advice and quality service, see an
authorized Kia dealer.
Inadequate, incomplete or insufficient
servicing may result in operational prob-
lems with your vehicle that could lead to
vehicle damage, an accident, or person-
al injury.
Owner’s responsibility Maintenance Service and Record
Retention are the owner's responsibil-
ity.
You should retain documents that show
proper maintenance has been performed
on your vehicle in accordance with the
scheduled maintenance service charts
shown on the following pages. You need
this information to establish your compli-
ance with the servicing and maintenance
requirements of your Kia warranties.
Detailed warranty information is provided
in your Warranty & Consumer Information
manual.
Repairs and adjustments required as a
result of improper maintenance or a lack
of required maintenance are not covered.
We strongly recommend that all vehicle
maintenance be performed by an author-
ized Kia dealer using genuine Kia parts.

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

Maintenance4 7MAINTENANCE SCHEDULE (CONTINUED)Chassis and body
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
Air conditioner compressor operation &
IIIII
refrigerant amount (if equipped)
Exhaust pipes, heat shield & mountings I IIIIIII
Front suspension ball joints I I I I
Brakes/clutch fluid (1) I I I I I I I RIIIII IIR
Front brake pads & discs (4) I I I I I IIIIIIII III
Rear brake pads & discs (4) I I I I I IIIIIIII III
Parking brake I I IIIIII
Brake lines & connections
IIIII
(including booster)
Manual transaxle oil (1) I I I R I I I R I I I R I I I R
Clutch & brake pedal free play I I I I I IIIIIIII III
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

75
Maintenance
MAINTENANCE SCHEDULE (CONTINUED)Chassis and body (Continued)
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
Automatic transaxle fluid (1) I I I R I I I R I I I R I I I R
Chassis & underbody bolts & nuts I I I I I IIIIIIII III
Tire condition & inflation pressure I I I I I IIIIIIII III
Wheel alignment (5)
Tire rotation
Steering operation & linkage I I I I I IIIIIIII III
Power steering fluid & lines I I IIIIII
Driveshaft dust boots I I I I I
Seat belts, buckles & anchors I I I I I IIIIIIII III
Lock, hinges & hood latch L L L L L LLLLLLLL LLL
MAINTENANCE
MAINTENANCE
ITEM
Inspect when abnormal condition noted
Rotate the tires every 12,000 km

Maintenance6 7Chart symbols:I - Inspect these items and their related parts. If necessary, correct, clean, refill, adjust or replace.
R - Replace or change
L - Lubricate.
(1) Refer to the lubricant and coolant specifications in the Owner’s Manual.
(2) More frequent maintenance is required if driving under dusty conditions.
(3) Inspect for excessive valve noise and/or engine vibration and adjust if necessary. A qualified technician should perform the
operation.
(4) More frequent maintenance is required if the vehicle is operated under any of the following conditions:
a. Short-distance driving.
b. Driving on dusty roads.
c. Extensive idling or slow-speed driving in stop-and-go traffic.
(5) If necessary, rotate and balance the wheels.
* Note: Check the engine oil and coolant levels every week.

77
Maintenance
OWNER MAINTENANCE Owner maintenance schedule The following lists are vehicle checks and
inspections that should be performed by
the owner or an authorized Kia dealer at
the frequencies indicated to help ensure
safe, dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your dealer as
soon as possible.
These Owner Maintenance Checks are
generally not covered by warranties and
you may be charged for labor, parts and
lubricants used.When you stop for fuel: Check the engine oil level.
Check coolant level in coolant reser-
voir.
Check the windshield washer fluid
level.
Look for low or under-inflated tires.
While operating your vehicle: Note any changes in the sound of the
exhaust or any smell of exhaust fumes
in the vehicle.
Check for vibrations in the steering
wheel. Notice any increased steering
effort or looseness in the steering
wheel, or change in its straight-ahead
position.
Notice if your vehicle constantly turns
slightly or “pulls” to one side when trav-
eling on smooth, level road.
When stopping, listen and check for
strange sounds, pulling to one side,
increased brake pedal travel or “hard-
to-push” brake pedal.
If any slipping or changes in the oper-
ation of your transaxle occurs, check
the transaxle fluid level.
Check automatic transaxle P (Park)
function.
Check parking brake.
Check for fluid leaks under your vehicle
(water dripping from the air condition-
ing system during or after use is nor-
mal).
At least monthly: Check coolant level in the coolant
recovery reservoir.
Check the operation of all exterior
lights, including the stoplights, turn sig-
nals and hazard warning flashers.
Check the inflation pressures of all
tires including the spare.At least twice a year
(i.e., every Spring and Fall) : Check radiator, heater and air condi-
tioning hoses for leaks or damage.
Check windshield washer spray and
wiper operation. Clean wiper blades
with clean cloth dampened with wash-
er fluid.
Check headlight alignment.
Check muffler, exhaust pipes, shields
and clamps.
Check the lap/shoulder belts for wear
and function.
Check for worn tires and loose wheel
lug nuts.
WARNING
- Radiation
coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot coolant
and steam may blow out under
pressure. This could cause burns or
other serious injury.

Maintenance8 7At least once a year : Clean body and door drain holes.
Lubricate door hinges and checks, and
hood hinges.
Lubricate door and hood locks and
latches.
Lubricate door rubber weatherstrips.
Check the air conditioning system
before the warm weather season.
Check the power steering fluid level.
Inspect and lubricate automatic
transaxle linkage and controls.
Clean battery and terminals.
Check the brake fluid level.
Owner maintenance precautions Improper 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, sev-
eral procedures can be done only by an
authorized Kia dealer with special tools.
Improper owner maintenance during
the warranty period may affect war-
ranty coverage. For details, read the
separate Kia Warranty & 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.
WARNING
- Maintenance
work
Performing maintenance work on
a vehicle can be dangerous. You
can be seriously injured while per-
forming some maintenance pro-
cedures. If you lack sufficient
knowledge and experience or the
proper tools and equipment to do
the work, have it done by an
Authorized Kia Dealer.
Working under the hood with the
engine running is dangerous. It
becomes even more dangerous
when you wear jewelry or loose
clothing. These can become
entangled in moving parts and
result in injury. Always remove all
loose or hanging clothing and all
jewelry before working on the
engine.

79
Maintenance
ENGINE COMPARTMENT
OMG077001
1. Engine coolant reservoir
2. Engine oil filler cap
3. Brake fluid reservoir
4. Air cleaner
5. Fuse box
6. Negative battery terminal
7. Radiator cap
8. Positive battery terminal
9. Auto transaxle oil dipstick (if equipped)
10. Engine oil dipstick
11. Windshield washer fluid reservoir
12. Power steering fluid reservoir
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2.4L Gasoline Engine