2015 KIA Optima cooling

Maintenance
20
7
204,000 km (127,500 miles) or 102 months
❑ Rotate tire
❑ Inspect battery condition
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (2.4 GDI)
(204,000 km (127,500 miles) or 204 months)
❑ Add fuel additive *
1
(12,000 km (7,500 miles) or 12 months)
❑ Inspect cooling system hoses and connections
❑ Inspect brake pedal free play
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.
(Continued)
❑Replace climate control air filter
(for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter (2.4 GDI)
(192,000 km (120,000 miles) or 192 months)
❑ Replace coolant
(First, 200,000 km (120,000 miles) or 120 months
after every 40,000 km (25,000 miles) or 24 months)
❑ Add fuel additive *
1
(12,000 km (7,500 miles) or 12 months)
❑ Inspect cooling system hoses and connections
❑ Inspect brake pedal free play
❑ Inspect all latch, hinges and locks
NORMAL MAINTENANCE SCHEDULE
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.

721
Maintenance
NORMAL MAINTENANCE SCHEDULE
216,000 km (135,000 miles) or 108 months
❑Rotate tire
❑ Inspect battery condition
❑ 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 steering gear box, linkage & boots/lower arm ball
joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect drive belts
(First, 96,000 km (60,000 miles) or 48 months
after every 24,000 km (15,000 miles) or 12 months)
❑ Replace climate control air filter
(for evaporator and blower unit)
❑ Inspect rear brake disc/pads, parking brake
❑ Replace engine oil and filter (2.4 GDI)
(216,000 km (135,000 miles) or 216 months)
❑ Add fuel additive *
1
(12,000 km (7,500 miles) or 12 months)
(Continued)
(Continued)
❑ Replace spark plugs (iridium coated, 2.0 T-GDI)
❑ Inspect cooling system hoses and connections
❑ Inspect brake pedal free play
❑ Inspect all latch, hinges and locks
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.
228,000 km (142,500 miles) or 114 months
❑Rotate tire
❑ Inspect battery condition
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (2.4 GDI)
(228,000 km (142,500 miles) or 228 months)
❑ Add fuel additive *
1
(12,000 km (7,500 miles) or 12 months)
❑ Inspect cooling system hoses and connections
❑ Inspect brake pedal free play
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.

Maintenance
22
7
No check, No service required
❑ Automatic transaxle fluid (if equipped)
240,000 km (150,000 miles) or 120 months
❑Rotate tire
❑ Inspect battery condition
❑ 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 steering gear box, linkage & boots/lower arm ball
joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect brake/clutch (if equipped) fluid
❑ Inspect fuel filter *
2
❑Inspect fuel lines, fuel hoses and connections
❑ Inspect fuel tank air filter (if equipped) *2
❑Inspect rear brake disc/pads, parking brake
❑ Inspect vapor hose and fuel filler cap, fuel tank
❑ Inspect manual transaxle fluild (if equipped)
❑ Inspect drive belts
(First, 96,000 km (60,000 miles) or 48 months
after every 24,000 km (15,000 miles) or 12 months)
(Continued)
(Continued)
❑ Replace climate control air filter
(for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter (2.4 GDI)
(240,000 km (150,000 miles) or 240 months)
❑ Replace coolant
(First, 200,000 km (120,000 miles) or 120 months
after every 40,000 km (25,000 miles) or 24 months)
❑ Add fuel additive *
1
(12,000 km (7,500 miles) or 12 months)
❑ Inspect cooling system hoses and connections
❑ Inspect brake pedal free play
❑ Inspect all latch, hinges and locks
❈ Inspect : Inspect and if necessary, adjust, correct, clean or
replace.
NORMAL MAINTENANCE SCHEDULE

Maintenance
26
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 coolant should be changed at
the intervals specified in the mainte-
nance schedule.

731
Maintenance
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 at least once a year, at
the beginning of the winter season,
and before traveling to a colder cli-
mate.Checking the coolant level
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 (MAX) and L (MIN) marks
on the side of the coolant reservoir
when the engine is cool.If the coolant level is low, add enough
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to F (MAX), but do not
overfill. If frequent coolant addition is
required, see an authorized Kia deal-
er for a cooling system inspection.
WARNING - Cooling fan
Use caution when
working near the
blade of the cooling
fan. The electric
motor (cooling fan) is
controlled by engine coolant
temperature, refrigerant pres-
sure and vehicle speed. It may
sometimes operate even when
the engine is not running.
OTF070006

733
Maintenance
Turn the engine off and wait until it
cools down. Use care when remov-
ing the radiator cap. Wrap a thick
towel around it, and turn it counter-
clockwise 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 con-
tinue turning counterclockwise to
remove it.Changing the coolant
Have the coolant changed by an
authorized Kia dealer according to
the Maintenance Schedule at the
beginning of this chapter.
Put a thick cloth or fabric around the
radiator cap before refilling the
coolant in order to prevent the
coolant from overflowing into engine
parts such as the alternator.CAUTION- Removingradiator cap
Never attempt toremove the radiatorcap while the engineis operating or hot.Doing so might leadto cooling system andengine damage.

775
Maintenance
Description Fuse RatingProtected Component
RR HTD - E/R BOX RR HTD RLY COIL
HORN 15A HORN (LH, RH)
F/PUMP 20A FUEL PUMP MTR
ECU 3 15A PCU (TGDI) BATT. DIRECT
SENSOR 1 15A DN O2 SENSOR (TGDI), UP O2 SENSOR (TGDI), COOLING FAN RLY COIL (TGDI) INJECTOR 10A E/R BOX F/PUMP RLY COIL
SENSOR 3 10A CMP1, 2 (TGDI), SMATRA IMMOBILIZER
SENSOR 2 10A CKP (TGDI), VIS (GDI), OCV1, 2 (TGDI), PCSV (TGDI), RCV (TGDI) IGN COIL 20A ENGINE IG COIL ECU 1 30A ECU RLY
SPARE 10A -
SPARE 15A -
SPARE 20A -
WIPER 10A BCM, RAIN SNSR, WIPER MTR
VACUUM PUMP 20A BRAKE VACUUM PUMP IG1 AMS 10A BATTERY SENSOR
Engine Compartment fuse panel (for theta 2.0 T- GDI)

Maintenance
76
7
Description Fuse Rating Protected Component
TCU 1 20A TCU
STOP LAMP 15A RLY.10 (HAC Relay), STOP LAMP RELAY DEICER 20A RLY.7 (Deicer Relay)
IG1 40A IGN SW
B+ 1 50A B+
B+ 2 60A B+
C/ FAN 2 60A C/FAN RLY
IG 2 40A IGN SW, IG2 RLY
ESC 1 40A ESC UNIT MOTOR B+ , DIAGNOSIS ABS A/B VALVE B+
ESC 2 40A ESC UNIT SOLENOID B+
RR HTD 40A RLY.1 (RR HTD Relay)
B+ 3 60A B+
MDPS 80A EPS CONTROL MODULE
SPARE 25A -
C/FAN 1 50A COOLING FAN RLY TGDI
BLOWER 40A E/R BOX BLOWER RLY SWITCH