engine coolant KIA NIRO PHEV 2018 Owner's Manual

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

Maintenance
114
8
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

97
Specifications, Consumer information, Reporting safety defects
RECOMMENDED LUBRICANTS AND CAPACITIES
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality.
The correct lubricants also help promote engine efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s
time, they can offer significant cost and energy savings.
Lubricant VolumeClassification
Engine oil *1*2
(drain and refill)
Recommends
4.01 US qt. (3.8 liter)0W-20 API SN or ACEA C2
Dual Clutch Transmission Fluid1.69 ~ 1.79 US qt. (1.6 ~ 1.7 liter)
SAE 70W, API GL-4
(Recommended HK SYN DCTF 70W (SK),
SPIRAX S6 GHME 70W DCTF (H.K.SHELL), GS DCTF HD 70W (GS CALTEX))
Coolant6.31 US qt. (5.98 liter)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Inverter coolant2.56 US qt. (2.43 liter)Mixture of antifreeze and water
(Ethylene glycol base coolant for aluminum radiator)
Brake fluid0.425 ± 0.025 US qt. (402.6 ± 24.4 cc)DOT 3 or DOT 4
Engine clutch actuator fluid0.105 ± 0.021 US qt. (100 ± 20 cc)DOT 3 or DOT 4
FuelHEV47.5 US qt. (45 liter)Refer to Fuel requirements in chapter 1.PHEV45.4 US qt. (43 liter)

Index
4I
Clean air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
148
Climate control air filter . . . . . . . . . . . . . . . . . . . . . . . . 8-40Filter inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Filter replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Clothes hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-161
Combined instrument, see instrument cluster . . . . . . . 4-53
Consumer assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 8-28 Checking the coolant level . . . . . . . . . . . . . . . . . . . . 8-28
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Inverter coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Recommended coolant . . . . . . . . . . . . . . . . . . . . . . . 8-30
Changing the coolant . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Cooling fluid, see engine coolant . . . . . . . . . . . . . . . . . 8-28
Crankcase emission control system . . . . . . . . . . . . . . 8-113
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47 To set cruise control speed . . . . . . . . . . . . . . . . . . . . 6-48
To increase cruise control set speed . . . . . . . . . . . . . 6-48
To decrease the cruising speed . . . . . . . . . . . . . . . . . 6-49
To temporarily accelerate with the cruise control on6-49
To cancel cruise control . . . . . . . . . . . . . . . . . . . . . . 6-49
To resume cruising speed at more than approximately 20mph (30 km/h) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-50
To turn cruise control off . . . . . . . . . . . . . . . . . . . . . 6-50
Cup holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152
Curtain air bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62 Dashboard illumination, see instrument panel
illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56
Dashboard, see instrument cluster . . . . . . . . . . . . . . . . 4-53
Day/night rearview mirror . . . . . . . . . . . . . . . . . . . . . . 4-48
Daytime running light. . . . . . . . . . . . . . . . . . . . . . . . . 4-116
Defogging (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-145
Defroster (Rear window) . . . . . . . . . . . . . . . . . . . . . . 4-129
Defrosting (Windshield) . . . . . . . . . . . . . . . . . . . . . . . 4-145
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-\
2
Disarmed stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Display illumination, see instrument panel illumination . 4-56
Displays, see instrument cluster . . . . . . . . . . . . . . . . . . 4-53
Distance to empty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60
Door locks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-\
20 from outside the vehicle . . . . . . . . . . . . . . . . . . . . . . 4-20
from inside the vehicle . . . . . . . . . . . . . . . . . . . . . . . 4-21
Central door lock switch . . . . . . . . . . . . . . . . . . . . . 4-22
Child-protector rear door lock . . . . . . . . . . . . . . . . . 4-23
Drinks holders, see cup holders . . . . . . . . . . . . . . . . . 4-152
Driver Attention Alert (DAA) . . . . . . . . . . . . . . . . . . . . 6-82 System setting and activation . . . . . . . . . . . . . . . . . . 6-82
Resetting the system. . . . . . . . . . . . . . . . . . . . . . . . . 6-84
System disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
System malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
Driver position memory system . . . . . . . . . . . . . . . . . . . 3-9D