engine KIA Optima Hybrid 2014 3.G Owner's Manual

Maintenance
14
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
120,000 km or 60 months
❑ Inspect air cleaner filter
❑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 (120,000 km or 120 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 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 engine oil and filter (120,000 km or 120 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
132,000 km or 66 months
❑ Inspect air cleaner filter
❑Inspect HSG belt (132,000 km or 132 months)
❑ Inspect vacuum hose
❑Replace engine oil and filter (132,000 km or 132 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace. ❈
Inspect : Inspect and if necessary, adjust, correct, clean or replace.

715
Maintenance
NORMAL MAINTENANCE SCHEDULE (CONT.)
156,000 km or 78 months
❑Inspect air cleaner filter
❑Inspect HSG belt (156,000 km or 156 months)
❑ Inspect vacuum hose
❑Replace engine oil and filter (156,000 km or 156 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
144,000 km or 72 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 (144,000 km or 144 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 (144,000 km or 144 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

Maintenance
16
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
168,000 km or 84 months
❑ Inspect air cleaner filter
❑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 (168,000 km or 168 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 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 engine oil and filter (168,000 km or 168 months)
❑ Replace spark plugs (iridium coated)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
180,000 km or 90 months
❑ Inspect air cleaner filter
❑Inspect HSG belt (180,000 km or 180 months)
❑ Inspect vacuum hose
❑Replace engine oil and filter (180,000 km or 180 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace. ❈
Inspect : Inspect and if necessary, adjust, correct, clean or replace.

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.

Maintenance
18
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
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 (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
(Continued)
228,000 km or 114 months
❑Inspect air cleaner filter
❑Inspect HSG belt (228,000 km or 228 months)
❑ Inspect vacuum hose
❑Replace engine oil and filter (228,000 km or 228 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
204,000 km or 102 months
❑ Inspect air cleaner filter
❑Inspect HSG belt (204,000 km or 204 months)
❑ Inspect vacuum hose
❑Replace engine oil and filter (204,000 km or 204 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)
(Continued)
❑ 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 engine oil and filter (216,000 km or 216 months)
❑Add fuel additive *1 (Every 12,000 km or 12 months)❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
❈Inspect : Inspect and if necessary, adjust, correct, clean or replace.
❈ 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
20
7
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
SEVERE DRIVING CONDITIONS
A - Repeatedly driving short distance of less than 8 km in normal tempera-
ture or less than 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 32°C (90°F)
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 170 km/h (106 mph)
K - Frequently driving in stop-and-go conditions
L - Frequently driving in rainy areas
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 6,000 KM OR 6 MONTHSA, B, C, D, E, F, G, H, I, K
AIR CLEANER FILTERRMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYA, B, H, I, K
AUTOMATIC TRANSAXLE FLUIDREVERY 96,000 KMA, C, E, F, G, I
HSG BELTREVERY 48,000 KM or 24 MONTHS C, D, E, K, L
IEVERY 6,000 KM or 6 MONTHS C, D, E, K, L
FRONT BRAKE DISC/PADS, CALIPERSIMORE FREQUENTLYC, D, G, H
REAR BRAKE DISC/PADSIMORE FREQUENTLYC, D, G, F
PARKING BRAKEIMORE FREQUENTLYC, D, G, H
STEERING GEAR BOX, LINKAGE & BOOTS/
LOWER ARM BALL JOINT, UPPER ARM BALL
JOINTIEVERY 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

721
Maintenance
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.

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.

723
Maintenance
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.