2015 KIA OPTIMA HYBRID Owners Manual

721
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
135,000 miles (216,000 km) or 108 months
❑Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers and rotors
❑ Inspect HSG belt
(135,000 miles (216,000 km) or 216 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 W/pump belt (auto-tensioner, HSG, w/pump)
(First, 60,000 miles (96,000 km or 72 months
after every 15,000 miles (24,000 km) or 24 months)
❑ Replace climate control air filter
(for evaporator and blower unit)
❑ Replace engine oil and filter
(135,000 miles (216,000 km) or 216 months)
(Continued)
(Continued)
❑Add fuel additive *1
(Every 7,500 miles (12,000 km) or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.

Maintenance
22
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
142,500 miles (228,000 km) or 114 months
❑ Inspect air cleaner filter
❑ Inspect HSG belt
(142,500 miles (228,000 km) or 228 months)
❑ Inspect vacuum hose
❑ Replace engine oil and filter
(142,500 miles (228,000 km) or 228 months)
❑ Add fuel additive *
1
(Every 7,500 miles (12,000 km) or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.
150,000 miles (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
(150,000 miles (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, fuel tank
❑ Inspect W/pump belt (auto-tensioner, HSG, w/pump)
(First, 60,000 miles (96,000 km or 72 months
after every 15,000 miles (24,000 km) or 24 months)
(Continued)

723
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
No check, No service required
❑Automatic transaxle fluid
(Continued)
❑Replace climate control air filter
(for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter
(150,000 miles (240,000 km) or 240 months)
❑ Replace engine coolant
(First, 120,000 miles (192,000 km) or 120 months
after every 30,000 miles (48,000 km) or 24 months)
❑ Replace inverter coolant
(First, 120,000 miles (192,000 km) or 120 months
after every 30,000 miles (48,000 km) or 24 months)
❑ Add fuel additive *
1
(Every 7,500 miles (12,000 km) or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.

Maintenance
24
7
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and filterREvery 3,750 miles (6,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Air cleaner filterRMore frequentlyC, E
Spark plugsRMore frequentlyA, B, H, I, K
Automatic transaxle fluidREvery 60,000 miles (96,000 km)A, C, D, E,
F, G, H, I, K
HSG belt
REvery 30,000 miles (48,000 km) or
24 monthsC, D, E, K, L
IEvery 3,750 miles (6,000 km) or 6 monthsC, D, E, K, L
Front brake disc/pads, calipersIMore frequentlyC, D, G, H
Rear brake disc/padsIMore frequentlyC, D, G, F

725
Maintenance
SEVERE DRIVING CONDITIONS
A -Repeatedly driving short distance of less than 5 miles(8 km) in normal temperature or less than 10 miles (16
km) in freezing temperature
B -Extensive engine idling or low speed driving for long distances
C -Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads
D -Driving in areas using salt or other corrosive materials or in very cold weather
E -Driving in sandy areas F -Driving in heavy traffic area over 90°F (32°C)
G -Driving on uphill, downhill, or mountain road
H -Towing a Trailer, or using a camper, or roof rack
I -Driving as a patrol car, taxi, other commercial use or
vehicle towing
J -Driving over 106 mph (170 km/h)
K -Frequently driving in stop-and-go conditions
L - Frequently driving in rainy areas
MAINTENANCE ITEMMAINTENANCE OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Parking brakeIMore frequentlyC, D, G, H
Steering gear box, linkage & boots/lower
arm ball joint, upper arm ball jointIEvery 7,500 miles (12,000 km) or 6 monthsC, D, E, F, G, H, I
Drive shafts and bootsIMore frequentlyC, D, E, F, G, H, I, J
Climate control air filter
(For evaporator and blower unit)RMore frequentlyC, E

Maintenance
26
7
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,
more frequent oil and filter changes
are required.
Drive belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked peri-
odically for proper tension and
adjusted as necessary.
Fuel filter
A clogged filter can limit the speed at
which the vehicle may be driven,
damage the emission system and
cause multiple issues such as hard
starting. If an excessive amount of
foreign matter accumulates in the
fuel tank, the filter may require
replacement more frequently.
After installing a new filter, run the
engine for several minutes, and
check for leaks at the connections.
Fuel filters should be installed by an
authorized Kia dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Kia dealer
replace any damaged or leaking
parts immediately.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure that a new
vapor hose or fuel filler cap is cor-
rectly replaced.

727
Maintenance
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.

Maintenance
28
7
Automatic transaxle fluid
Automatic transaxle fluid should not
be checked under normal usage
conditions.
But in severe conditions, the fluid
should be changed at an authorized
Kia dealer in accordance to the
scheduled maintenance at the begin-
ning of this chapter.
✽ ✽
NOTICE
Automatic transaxle fluid color is
basically red.
As the vehicle is driven, the auto-
matic transaxle fluid will begin to
look darker.
It is normal condition and you
should not judge the need to replace
the fluid based upon the changed
color.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake fluid
Check brake fluid level in the brake
fluid reservoir. The level should be
between “MIN” and “MAX” marks on
the side of the reservoir. Use only
hydraulic brake fluid conforming to
DOT 3 or DOT 4 specification.
Parking brake
Inspect the parking brake system
including the parking brake pedal
and cables.
Brake discs, pads, calipers
and rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
Exhaust pipe and muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension mounting bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.