2017 KIA OPTIMA PLUG-IN HYBRID boot

Engine compartment................................................................ 9-03
Maintenance services............................................................... 9-04Owner’s responsibility.......................................................... 9-04
Owner maintenance precautions....................................... 9-04
Owner maintenance................................................................. 9-06 Owner maintenance schedule.............................................9-06
Scheduled maintenance service............................................. 9-08 Scheduled maintenance service precaution..................... 9-08
Normal maintenance schedule - for gasoline en‐ gine [for Europe (except Russia)].......................................9-09
Normal maintenance schedule - for gasoline en‐ gine [for Europe (except Russia)] (Continued)................. 9-10
Maintenance under severe usage conditions - for gasoline engine [for Europe (except Russia)]...................9-12
Normal maintenance schedule - for gasoline en‐ gine [except Europe (including Russia)]............................ 9-14
Normal maintenance schedule - for gasoline en‐ gine [except Europe (including Russia)] (Continued).......9-15
Maintenance under severe usage conditions - for gasoline engine [except Europe (including Russia)]........ 9-18
Explanation of scheduled maintenance items..................... 9-21 Engine oil and filter............................................................... 9-21
HSG (hybrid starter & generator) belt.............................. 9-21
Fuel filter (for gasoline)....................................................... 9-21
Fuel lines, fuel hoses and connections.............................. 9-21
Vapor hose (for gasoline engine) and fuel filler cap........9-21
Vacuum crankcase ventilation hoses ................................9-21
Air cleaner filter.....................................................................9-21
Spark plugs (for gasoline engine)....................................... 9-21
Cooling system...................................................................... 9-22 Coolant (Engine/Inverter).................................................... 9-22
Automatic transaxle fluid.................................................... 9-22
Brake hoses and lines........................................................... 9-22
Brake fluid ............................................................................. 9-22
Parking brake ........................................................................ 9-22
Brake discs, pads, calipers and rotors............................... 9-22
Suspension mounting bolts................................................. 9-22Steering gear box, linkage & boots/lower arm
ball joint.................................................................................. 9-22
Drive shafts and boots......................................................... 9-22
Air conditioning refrigerant................................................. 9-23
Engine oil.....................................................................................9-24 Checking the engine oil level................................................9-24
Changing the engine oil and filter...................................... 9-24
Coolant........................................................................................ 9-26 Checking the coolant level................................................... 9-26
Engine coolant....................................................................... 9-27
Inverter coolant..................................................................... 9-27
Recommended coolant.........................................................9-28
Changing the coolant............................................................ 9-29
Brake fluid ................................................................................. 9-30 Checking the brake fluid level............................................. 9-30
Washer fluid............................................................................... 9-31 Checking the washer fluid level.......................................... 9-31
Parking brake ............................................................................ 9-32 Checking the parking brake................................................. 9-32
Air cleaner.................................................................................. 9-33 Filter replacement.................................................................9-33
Climate control air filter........................................................... 9-35 Filter inspection..................................................................... 9-35
Maintenance

9

NORMAL MAINTENANCE SCHEDULE - FOR GASOLINE ENGINE [FOR EUROPE (EXCEPT RUSSIA)]
(CONTINUED)
MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [For Europe (Except Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Air cleaner filter I I R I I R I I
Air conditioner compressor/refrigerant I I I I I I I I Automatic transaxle fluid No check, No service required
Battery condition I I I I I I I I
Brake discs and pads I I I I I I I I
Brake lines, hoses and connections I I I I I I I IBrake fluid I R I R I R I R
Climate control air filter R R R R R R R R
Coolant (Engine / Inverter) *1
At first, Replace 210,000 km (140,000 miles) or 120 months after that,
Replace every 30,000 km (20,000 miles) or 24 months
Cooling system At first, Inspect 60,000 km (40,000 miles) or 48 months after that, Inspect
every 30,000 km (20,000 miles) or 24 months
Drive shaft and boots I I I I I I I I Engine oil and engine oil fil‐ ter *2
Nu 2.0L GDI R R R R R R R R
Exhaust system - I - I - I - I
Maintenance
9-10

MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [For Europe (Except Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Fuel additives (Gasoline) *3
Add every 15,000 km (10,000 miles) or 12 months
Fuel filter (Gasoline) - I - R - I - R
Fuel lines, hoses and connections - - - I - - - IFuel tank air filter - I - R - I - R
HSG (Hybrid Starter & Generator) belt *4
I I I I I I R I
Parking brake - I - I - I - I
Spark plugs *5
Nu 2.0L GDI Replace every 150,000 km (100,000 miles) or 120 months
Steering gear rack, linkage and boots I I I I I I I I
Suspension ball joints I I I I I I I I
Tire (pressure & tread wear) I I I I I I I I
Vacuum hoses and crankcase ventilation hoses I I I I I I I I
Vapor hose and fuel filler cap - - - I - - - I
I: Inspect and if necessary, adjust, correct, clean or replace.
R: Replace or change.


9-11
9
Maintenance

MAINTENANCE UNDER SEVERE USAGE CONDITIONS - FOR GASOLINE ENGINE [FOR EUROPE
(EXCEPT RUSSIA)]
MAINTENANCE ITEMMAINTENANCE IN‐TERVALSDRIVING CONDITIONDRIVING CONDI‐TION
Engine oil and engine oil filter R Every 7,500 km (5,000 miles) or 6
months A, B, C, D, E, F, G, J,
K, L
HSG (Hybrid Starter & Generator) belt R
Every 45,000 km (30,000 miles) or 24
months C, D, E, L
I Every 7,500 km (5,000 miles) or 6
months C, D, E, L
Air cleaner filter RReplace more frequently depending on
the condition C, E
Spark plugs RReplace more frequently depending on
the condition B, L
Automatic transaxle fluid R Every 90,000 km (60,000 miles) A, C, D, E, F, G, L
Steering gear rack, linkage and boots I Inspect more frequently depending on
the condition C, D, E, F, G
Suspension ball joints I Inspect more frequently depending on
the condition C, D, E, F, G
Brake discs and pads, calipers and rotors I Inspect more frequently depending on
the condition C, D, E, G
Parking brake IInspect more frequently depending on
the condition C, D, G
Drive shaft and boots I Inspect more frequently depending on
the condition C, D, E, F, G, K
Maintenance

9-12

NORMAL MAINTENANCE SCHEDULE - FOR GASOLINE ENGINE [EXCEPT EUROPE (INCLUDING
RUSSIA)] (CONTINUED)
MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [Except Europe (Including Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Air cleaner filter Except China, India, Middle East
I I R I I R I I
For China, India, Mid‐dle East R R R R R R R R
Air conditioner compressor/refrigerant I I I I I I I I Automatic transaxle fluid No check, no service required
Battery condition I I I I I I I I
Brake discs and pads I I I I I I I I
Brake lines, hoses and connections I I I I I I I IBrake fluid I R I R I R I R
Climate control air filter R R R R R R R R
Coolant (Engine/Inverter) *1
At first, replace 210,000 km (140,000 miles) or 120 months
After that, replace every 30,000 km (20,000 miles) or 24 months
Cooling system At first, inspect 60,000 km (40,000 miles) or 48 months
After that, inspect every 30,000 km (20,000 miles) or 24 months
Drive shaft and boots I I I I I I I I

9-15
9
Maintenance

MAINTENANCE INTERVALS
Normal Maintenance Schedule - For Gasoline Engine [Except Europe (Including Russia)]
Number of months or driving distance, whichever comes first
Months1224364860728496
Miles×1,0001020304050607080
Km×1,000153045607590105120
MAINTENANCE ITEM
Engine oil and engine oil fil‐ ter *2
Nu 2.0L GDIExcept Middle East, Brazil: Replace every 15,000 km (10,000 miles) or
12 months
For Middle East, Brazil: Replace every 10,000 km (6,500 miles) or 12 months
Exhaust system - I - I - I - I
Fuel additives (Gasoline) *3
Add every 10,000 km (6,500 miles) or 6 months
Fuel filter (Gasoline) - I - R - I - R
Fuel lines, hoses and connections - - - I - - - I Fuel tank air filter - I - R - I - R
HSG (Hybrid Starter & Generator) belt *4Except Middle East, Brazil: Inspect every 15,000 km (10,000 miles) or 12
months, and replace every 105,000 km (70,000 miles) or 48 months
For Brazil: Inspect every 10,000 km (6,500 miles) or 12 months, and re‐ place every 100,000 km (65,000 miles) or 48 months
For Middle East: Inspect every 10,000 km (6,500 miles) or 12 months, and replace every 50,000 km (30,000 miles) or 24 months
Parking brake - I - I - I - I
Spark plugs *5
Nu 2.0L GDI Replace every 150,000 km (100,000 miles) or 120 months
Steering gear rack, linkage and boots I I I I I I I I
Maintenance
9-16

MAINTENANCE ITEMMAINTENANCEINTERVALSDRIVING CONDITIONDRIVING CONDI‐TION
Steering gear rack, linkage and boots I Inspect more frequently de‐
pending on the condition C, D, E, F, G
Suspension ball joints IInspect more frequently de‐
pending on the condition C, D, E, F, G
Brake discs and pads, calipers and rotors I Inspect more frequently de‐
pending on the condition C, D, E, G
Parking brake IInspect more frequently de‐
pending on the condition C, D, G
Drive shaft and boots IInspect more frequently de‐
pending on the condition C, D, E, F, G, K
Climate control air filter RReplace more frequently de‐
pending on the condition C, E, G
Maintenance operation
I: Inspect and if necessary, adjust, correct, clean or replace.
R: Replace or change.

SEVERE DRIVING CONDITIONS
A: Repeatedly driving short distance of less than 8 km (5 miles) in normal temperature or less than 16 km
(10 miles) 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.
J: Driving in very cold weather.

9-19
9
Maintenance

Fuse NameSymbolFuse rat‐ingCircuit Protected
IG1
25A PCB Block (Fuse - OPCU2/ELECTRICAL WATER PUMP/TCU2/ACTIVE HYDRAULIC
BOOTER 3/HEV ECU2/ECU3)
MODULE 9
10A Smart Key Control Module
WASHER
15A Multifunction Switch (Wiper Low & Washer Switch)
MODULE 8
10A Driver/Passenger Door Module
CLUSTER
10A Instrument Cluster
MULTI MEDIA
15A Audio, A/V & Navigation Head Unit, Keyboard
HTD STRG
15A BCM (Steering Wheel Heated)
MODULE 1
10A Console Switch, Active Air Flap Unit, Gateway, Driver/Passenger Door Module
DR LOCK
20A Door Lock Relay, Door Unlock Relay, ICM Relay Box (Dead Lock Relay)
MEMORY 2
10A Siren Control Module, Ultrasonic Intrusion Protection Sensor
SMART KEY
15A Smart Key Control Module
A/BAG IND
10A Instrument Cluster (Air Bag IND. Power)
TRUNK
10A Trunk Lid Relay, Fuel Filler & Trunk Open Switch, ICM Relay Box (Fuel Filler Open Relay)
SUNROOF 2
20A Sunroof Control Unit (Roller)
BATTERY MANAGE‐ MENT
BATTERY
MANAGEMENT20A BMS Control Module
MEMORY 1
10A Instrument Cluster, A/C Control Module, Data Link Connector, BCM, Wireless
Charger, Driver IMS Module, Rain Sensor, ICM Relay Box (Outside Mirror Fold‐
ing/Unfolding Mirror Relay), Security Indicator, Auto Light & Photo Sensor,
Driver/Passenger Door Module


9-59
9
Maintenance