engine coolant KIA Optima Hybrid 2014 3.G User Guide

73
Maintenance
ENGINE COMPARTMENT
OYFH071001
❈The actual engine room in the vehicle may differ from the illustration. 1. Sub relay box
2. Engine coolant reservoir
3. Windshield washer fluid reservoir
4. Radiator cap
5. Engine oil dipstick
6. Engine oil filler cap
7. Brake fluid reservoir
8. Air cleaner
9. Fuse box
10. Inverter coolant reservoir
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2.4L Engine

Maintenance
67
OWNER MAINTENANCE
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized 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 deal-
er as soon as possible.
These Owner Maintenance Checks
are generally not covered by war-
ranties and you may be charged for
labor, parts and lubricants used.Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check the coolant level in coolantreservoir.
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 steer-
ing effort or looseness in the steer-
ing wheel, or change in its straight-
ahead position.
Notice if your vehicle constantly turns slightly or “pulls” to one side
when traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or “hard-to-push” brake pedal.
If any slipping or changes in the operation of your transaxle occurs,
check the transaxle fluid level.
Check the automatic transaxle P (Park) function.
Check the parking brake.
Check for fluid leaks under your vehicle (water dripping from the air
conditioning system during or after
use is normal).
WARNING - Hot coolant
Be careful when checking your
engine coolant level when the
engine is hot. Scalding hot
coolant and steam may blow
out under pressure.

77
Maintenance
At least monthly:
Check the coolant level in theengine coolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all tires including the spare.
At least twice a year
(i.e., every Spring and Fall) :
Check the radiator, heater and air conditioning hoses for leaks or
damage.
Check the windshield washer spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tires and loose wheel lug nuts.
At least once a year :
Clean the body and door drainholes.
Lubricate the door hinges and check the hood hinges.
Lubricate the door and hood locks and latches.
Lubricate the door rubber weather- strips.
Check the air conditioning system.
Check the power steering fluid level.
Inspect and lubricate automatic transaxle linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

717
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
192,000 km or 96 months
❑Inspect air conditioning refrigerant
❑Inspect brake fluid
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers and rotors
❑Inspect fuel filter *2
❑Inspect fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *2
❑Inspect parking brake
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball
joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect vacuum hose
❑Inspect vapor hose and fuel filler cap
❑Inspect valve clearance *4
❑Inspect W/pump belt (auto-tensioner, HSG, w/pump)
(First, 96,000 km or 72 months after every 24,000 km or 24
months)
❑ Replace air cleaner filter
❑Replace climate control air filter
(for evaporator and blower unit)
(Continued)
(Continued)
❑Replace engine coolant (First, 192,000 km or 120 months
after every 48,000 km or 24 months)
❑Replace inverter coolant (First, 192,000 km or 120 months
after every 48,000 km or 24 months)
❑Replace engine oil and filter (192,000 km or 192 months)
❑Replace HSG belt (192,000 km or 96 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

719
Maintenance
240,000 km or 120 months
❑Inspect air conditioning refrigerant
❑Inspect brake fluid
❑Inspect brake hoses and lines
❑Inspect drive shafts and boots
❑Inspect exhaust pipe and muffler
❑Inspect front brake disc/pads, calipers and rotors
❑Inspect fuel filter *2
❑Inspect fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *2
❑Inspect HSG belt (240,000 km or 240 months)
❑ Inspect parking brake
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball
joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect vacuum hose
❑Inspect vapor hose and fuel filler cap
❑Inspect W/pump belt (auto-tensioner, HSG, w/pump)
(First, 96,000 km or 72 months after every 24,000 km or
24 months)
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace air cleaner filter
(Continued)
(Continued)
❑Replace engine oil and filter (240,000 km or 240 months)
❑Replace engine coolant (First, 192,000 km or 120 months
after every 48,000 km or 24 months)
❑Replace inverter coolant (First, 192,000 km or 120 months
after every 48,000 km or 24 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
NORMAL MAINTENANCE SCHEDULE (CONT.)
No check, No service required
❑ Automatic transaxle fluid
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

Maintenance
22
7
Vacuum crankcase ventilation
hoses
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
A Genuine Kia air cleaner filter is
recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Valve clearance
Inspect excessive valve noise and/or
engine vibration and adjust if neces-
sary. An authorized Kia dealer
should perform the operation.
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The engine and inverter coolant
should be changed at the intervals
specified in the maintenance sched-
ule.

727
Maintenance
COOLANT
Inverter coolant
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level everyday.
If it is near or at MIN, add enough
coolant between MIN and MAX and
check the cooling system for air
bleed at an authorized Kia dealer.
Engine coolant
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level per every day, at the
beginning of the winter season, and
before traveling to a colder climate.
OYFH071070N-1
CAUTION
When adding coolant, be carefulnot to overfill.

Maintenance
28
7
Checking the coolant level
WARNING
Removing radiator
cap and inverter
coolant cap
Never attempt to remove the radiator cap and/or inveter
coolant cap while the engine
is operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal
injury from escaping hot
coolant or steam.
The engine coolant and/or inverter coolant level is influ-
enced by hybrid system tem-
perature. Before filling the
engine coolant and/or inverter
coolant, turn the hybrid vehi-
cle off, fill the engine coolant
and/or inverter coolant care-
fully.
(Continued)
(Continued)
Turn the engine off and waituntil it cools down. 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 counter-
clockwise to remove it.
Even if the engine is not oper- ating, do not remove the radi-
ator cap and/or inverter or the
drain plug while the engine
and radiator are hot. Hot
coolant and steam may still
blow out under pressure,
causing serious injury.WARNING
The electronic motor
(cooling fan) is con-
trolled by engine
coolant temperature,
refrigerant pressure
and vehicle speed. It may some-
times operate even when the
engine is not running. Use
extreme caution when working
near the blades of the cooling
fan so that you are not injured
by the rotating fan blades. As
the engine coolant temperature
decreases, the electric motor
will automatically shut off. This
is a normal condition.

729
Maintenance
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses.
The coolant level should be filled
between F and L marks on the side
of the coolant reservoir when the
engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to provide
protection against freezing and cor-
rosion. Bring the level to F, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.
Recommended engine and invert-er coolant
When adding coolant, use only deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
The engine in your vehicle has alu- minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
DO NOT USE alcohol or methanol coolant or mix them with the spec-
ified coolant.
Do not use a solution that contains more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution. For mixture percentage, refer to the
following table.
-15°C (5°F) 35
65
-25°C (-13°F) 40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40
Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OYFH071005N

Maintenance
30
7
Changing the coolant
Have engine and inverter coolant
changed by an authorized Kia dealer
according to the Maintenance
Schedule at the beginning of this
section.
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.
CAUTION
Put a thick cloth or fabricaround the radiator cap and/orinverter coolant cap beforerefilling the coolant in order toprevent the coolant from over-flowing into engine parts suchas the generator.
OYFH071006N-1/OYFH071070N-1
Radiator cap
Inverter coolant cap
WARNING
Radiator cap &
Inverter coolant cap
Do not remove the radiator cap
and/or inverter coolant cap
when the engine and radiator
are hot. Scalding hot coolant
and steam may blow out under
pressure causing serious
injury.