spark plugs replace KIA Optima Hybrid 2016 4.G Owner's Manual

Driving your vehicle
50
5
Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in section 7. Never attempt to check
the Hybrid High Voltage Battery. The
level of charge in your battery can be
checked by an authorized Kia dealer
or a service station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
Kia dealer.
Check spark plugs and igni-
tion system
Inspect your spark plugs as
described in chapter 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.
Use approved window washer
anti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized Kia dealer and most auto
parts outlets. Do not use engine
coolant or other types of anti-freeze
as these may damage the paint fin-
ish.

Maintenance
16
7
NORMAL MAINTENANCE SCHEDULE (CONT.)
168,000 km or 84 months
❑ Rotate tire
❑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 water pump belt (auto-tensioner, HSG, water
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
❑ Rotate tire
❑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.

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, J, K
AIR CLEANER FILTERRMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYA, B, H, I, K
AUTOMATIC TRANSAXLE FLUIDREVERY 96,000 KMA, C, D, E, F, G, H, I, K
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

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.

I9
Index
Winter driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-49Carry emergency equipment . . . . . . . . . . . . . . . . . . 5-51
Change to "winter weight" oil if necessary . . . . . . . 5-50
Check battery and cables . . . . . . . . . . . . . . . . . . . . . 5-50
Check spark plugs and ignition system . . . . . . . . . . 5-50
Don't let ice and snow accumulate underneath . . . . 5-51
Don't let your parking brake freeze . . . . . . . . . . . . . 5-51
Snowy or Icy conditions. . . . . . . . . . . . . . . . . . . . . . 5-49
To keep locks from freezing. . . . . . . . . . . . . . . . . . . 5-50
Use approved window washer anti-freeze in system . . 5-50
Use high quality ethylene glycol coolant. . . . . . . . . 5-50
Wiper blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38 Blade inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Blade replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Wipers and washers . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-92 Windshield washers . . . . . . . . . . . . . . . . . . . . . . . . . 4-93
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . 4-92