2018 KIA OPTIMA HYBRID air filter

815
Maintenance
105,000 miles (168,000 km) or 84 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(105,000 miles (168,000 km) or 168 months)
❑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
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace spark plugs (iridium coated)
❑Replace engine oil and filter
(105,000 miles (168,000 km) or 168 months)
❑ Add fuel additive *4 (105,000 miles (168,000 km) or 168 months
❑Rotate tire position (Every 7,500 miles (12,000 km))
112,500 miles (180,000 km) or 90 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(112,500 miles (180,000 km) or 180 months)
❑Inspect vacuum hose
❑Replace engine oil and filter
(112,500 miles (180,000 km) or 180 months)
❑ Add fuel additive *4 (112,500 miles (180,000 km) or 180 months
❑Rotate tire position (Every 7,500 miles (12,000 km))
*3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
Normal Maintenance Schedule (CONT.)

Maintenance
16
8
Normal Maintenance Schedule (CONT.)
120,000 miles (192,000 km) or 96 months
❑ 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
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace air cleaner filter
❑Replace engine oil and filter
(120,000 miles (192,000 km) or 192 months)
❑Replace HSG belt *3
(120,000 miles (192,000 km) or 96 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)
(Continued)
*1Fuel tank air filter are considered to be maintenance free but periodic inspec-
tion is recommended for this maintenance schedule depends on fuel quality.
*
3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
127,500 miles (204,000 km) or 102 months
❑Inspect air cleaner filter
❑Inspect vacuum hose
❑Inspect HSG belt *3(127,500 miles (204,000 km) or 204 months)
❑Replace engine oil and filter
(127,500 miles (204,000 km) or 204 months)
❑ Add fuel additive *4 (127,500 miles (204,000 km) or 204 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
(Continued)
❑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 *4 (120,000 miles (192,000 km) or 192 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))

817
Maintenance
Normal Maintenance Schedule (CONT.)
135,000 miles (216,000 km) or 108 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(135,000 miles (216,000 km) or 216 months)
❑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
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Replace climate control air filter (for evaporator and blower unit)
❑Replace engine oil and filter
(135,000 miles (216,000 km) or 216 months)
❑ Add fuel additive *4 (135,000 miles (216,000 km) or 216 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
142,500 miles (228,000 km) or 114 months
❑Inspect air cleaner filter
❑Inspect HSG belt *3(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 *4 (142,500 miles (228,000 km) or 228 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
*3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

Maintenance
18
8
Normal Maintenance Schedule (CONT.)
150,000 miles (240,000 km) or 120 months
❑ Inspect HSG belt *3(150,000 miles (240,000 km) or 240 months)
❑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
❑Inspect rear brake disc/pads
❑Inspect steering gear box, linkage & boots/lower arm ball joint,
upper arm ball joint
❑ Inspect suspension mounting bolts
❑Inspect brake fluid
❑Inspect fuel cap, fuel lines, fuel hoses and connections
❑Inspect fuel tank air filter (if equipped) *1
❑Inspect parking brake
❑Inspect vapor hose and fuel filler cap
❑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)
(Continued)
(Continued)
❑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 *4 (150,000 miles (240,000 km) or 240 months)
❑Rotate tire position (Every 7,500 miles (12,000 km))
No check, No service required
❑Automatic transmission fluid (if equipped)
*1Fuel tank air filter are considered to be maintenance free but periodic inspec-
tion is recommended for this maintenance schedule depends on fuel quality.
*
3Inspect HSG belt for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. If HSG belt noise occurred, readjust HSG belt ten-
sion before replace.
*
4If TOP TIER Detergent Gasoline is not available, one bottle of additive is rec-
ommended. Additives are available from your authorized Kia dealer along with
information on how to use them. Do not mix other additives.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

819
Maintenance
Maintenance Under Severe Usage Conditions
Severe Driving Conditions
A - Repeatedly driving short distance of less than 5 miles (8 km) in normaltemperature 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 heavy dust condition. F - Driving in heavy traffic area.
G - Driving on uphill, downhill, or mountain roads repeatedly.
H - Towing a trailer or using a camper on roof rack.
I - Driving for patrol car, taxi, other commercial use of vehicle towing.
J - Driving over 106 mph (170 km/h).
K - Frequently driving in stop-and-go 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 filter REvery 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 frequentlyB, H
Automatic transmission fluidREvery 60,000 miles (96,000 km)A, C, D, E, F, G, H, I, K
HSG (Hybrid Starter & Generator) beltREvery 30,000 miles (48,000 km) or 24 monthsC, D, E, K
IEvery 3,750 miles (6,000 km) or 6 monthsC, D, E, K
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 jointIMore frequentlyC, D, E, F, G, H, I
Drive shafts and bootsIEvery 7,500 miles (12,000 km) or 6 monthsC, D, E, F, G, H, I, J
Climate control air filter (for evaporator and blower unit)RMore frequentlyC, E
Suspension mounting boltsIMore frequentlyC, D, E, F, G, H, I

821
Maintenance
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.
Cooling system
Check the cooling system compo-
nents, such as the radiator, coolant
reservoir, hoses and connections for
leakage and damage. Replace any
damaged parts.
Coolant (Engine / Inverter)
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
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.
CAUTION
Use only specified automatic
transaxle fluid. The use of a non-specified fluid could result in atransaxle malfunction and fail-ure. (Refer to "Recommendedlubricants and capacities" inchapter 9.)

Maintenance
34
8
AIR CLEANER
Filter replacement
It must be replaced when necessary,
and should not be washed.
You can clean the filter when inspect-
ing the air cleaner element.
Clean the filter by using compressed
air. 1. Pull out the air cleaner cover.
2. Unlock by turning the locking leverdownward.
3. Pull the air cleaner filter to replace.
4. Lock the cover with the reverse order.
OJFH075011
OJFH075012
OJFH075070
OJFH075013

835
Maintenance
Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extreme-ly dusty or sandy areas, replace theelement more often than the usualrecommended intervals. (Refer to“Maintenance under severe usageconditions” in this chapter.)
CAUTION - Air filter
maintenance
Do not drive with the air clean- er removed; this will result inexcessive engine wear.
When removing the air cleaner filter, be careful that dust ordirt does not enter the airintake, or damage may result.
Use a Kia genuine part. Use of a non-genuine part coulddamage the air flow sensor.