coolant KIA NIRO 2018 Owner's Manual

Maintenance
88
At least monthly:
Check the coolant level in theengine coolant reservoir.
Check the operation of all exterior lights, including the stoplights, turn
signals and hazard warning flash-
ers.
Check the inflation pressures of all tires including the spare.
At least twice a year
(i.e., every Spring and Fall) :
Check the radiator, heater and air conditioning hoses for leaks or
damage.
Check the windshield washer spray and wiper operation. Clean
the wiper blades with clean cloth
dampened with washer fluid.
Check the headlight alignment.
Check the muffler, exhaust pipes, shields and clamps.
Check the lap/shoulder belts for wear and function.
Check for worn tires and loose wheel lug nuts.
At least once a year :
Clean the body and door drainholes.
Lubricate the door hinges and check the hood hinges.
Lubricate the door and hood locks and latches.
Lubricate the door rubber weather- strips.
Check the air conditioning system.
Inspect and lubricate dual clutch transmission linkage and controls.
Clean the battery and terminals.
Check the brake fluid level.

Maintenance
18
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
❑Inspect engine clutch actuator hose and lines
(Every 15,000 mile (24,000 km) or 12months)
❑ 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))

Maintenance
20
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
❑Inspect engine clutch actuator hose and lines
(Every 15,000 mile (24,000 km) or 12months)
❑ Inspect dual clutch transmission fluid
❑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))
*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.

823
Maintenance
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.
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.
Dual clutch transmission Fluid
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.

825
Maintenance
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.
Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine
off, check for excessive free-play in
the steering wheel.
Check the linkage for bends or dam-
age. Check the dust boots and ball
joints for deterioration, cracks, or
damage. Replace any damaged
parts.
Drive shafts and boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air conditioning refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.When checking engine oil, engine
coolant, brake fluid, and washer fluid,
always be sure to clean the area
around any filler plug, drain plug, or
dipstick before checking or draining
any lubricant or fluid. This is espe-
cially important in dusty or sandy
areas and when the vehicle is used
on unpaved roads. Cleaning the plug
and dipstick areas will prevent dirt
and grit from entering the engine and
other mechanisms that could be
damaged.
CHECKING FLUID LEVELS

Maintenance
28
8
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 Turn the engine off and wait until it
cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the cool-
ing system.
When you are sure all the pressure
has been released, press down on
the cap, using a thick towel, and
continue turning counterclockwise
to remove it.
Even if the engine is not operating, do not remove the radiator cap or
the drain plug while the engine and
radiator are hot. Hot coolant and
steam may still blow out under
pressure, causing serious injury.
The engine coolant and/or inverter
coolant level is influenced by the
hybrid system temperature. Before
checking or refilling the engine
coolant and/or inverter coolant,
turn the hybrid vehicle off.
WARNING
Removing radiator
cap
Never attempt to remove the
radiator cap while the engine is
operating or hot. Doing so
might lead to cooling system
and engine damage and could
result in serious personal injury
from escaping hot coolant or
steam.
CAUTION - Radiator cap
Never attempt to remove theradiator cap while the engine isoperating or hot. Doing somight lead to cooling systemand engine damage.

829
Maintenance
Engine coolant
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 MAX and 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 MAX, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.
Inverter coolant
The coolant level should be filled
between MAX and MIN marks on the
side of the coolant reservoir when
the engine is cool.
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.
ODE076005ODE076053
■Hybrid
ODEP077053
■Plug-in Hybrid

Maintenance
30
8
If the coolant level is low, add enough
specified coolant to provide protec-
tion against freezing and corrosion.
Bring the level to MAX, but do not
overfill. If frequent additions are
required, see an authorized Kia deal-
er for a cooling system inspection.Recommended coolant
When adding coolant, use only
deionized water or soft water for
your vehicle and never mix hard
water in the coolant filled at the fac-
tory. An improper coolant mixture
can result in serious malfunction or
engine damage.
The engine in your vehicle has alu- minum engine parts and must be
protected by an ethylene-glycol
with phosphate based coolant to
prevent corrosion and freezing.
DO NOT USE alcohol or methanol coolant or mix them with the spec-
ified coolant.
Do not use a solution that contains more than 60% antifreeze or less
than 35% antifreeze. This would
reduce the effectiveness of the
solution. For mixture percentage, refer to the
following table.
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C)35 65
-13°F (-25°C)4060
-31°F (-35°C)5050
-49°F (-45°C)6040

831
Maintenance
✽
✽NOTICE
Make sure the coolant cap is proper-
ly closed after refill of coolant.
Otherwise the engine could be over-
heated while driving.
1. Check if the radiator cap label is
straight In front.WARNING
Radiator cap
Do not remove the radiator cap
when the engine and radiator
are hot. Scalding hot coolant
and steam may blow out under
pressure which may result in
serious injury.
■Inverter coolant reservoir cap (Hybrid)
■Engine coolant reservoir cap
ODE076004■Inverter coolant reservoir cap (Plug-in Hybrid)
ODEP077004
ODE076006
OQL075072
■ Engine room front view

Maintenance
32
8
2. Make sure that the tiny protru-
sions inside the coolant cap
should be securely interlocked.
Changing the coolant
Have the coolant changed by an
authorized Kia dealer according to
the Maintenance Schedule at the
beginning of this chapter.
CAUTION
Put a thick cloth or fabric
around the radiator cap beforerefilling the coolant in order toprevent the coolant from over-flowing into engine parts suchas the generator.
ODE076007
■ Engine room rear view