Kia Rio 2022, Owner'S Manual, Page: 498 / 602

Maintenance
40 8
Engine Coolant
僅 Even if the engine is not operating, do
not remove the radiator cap or the
drain plug whilst the engine and radi
-
ator are hot. Hot coolant and steam
may still blow out under pressure,
causing serious injury.
WARNING
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. Use extreme
caution when working near the blades of
the cooling fan so that you are not
injured by a rotating fan blades. As the
engine coolant temperature decreases,
the electric motor will automatically shut
off. This is a normal condition.
Smartstream G1.0 T-GDi / Smart
-
stream G1.0 T-GDi HEV
Smartstream G1.2/(Petrol engine) 1.4
MPI
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio
-
rated hoses.
The coolant level should be filled
between MAX and MIN (F and L) marks
on the side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add enough
distilled (deionized) or soft water. Bring
the level to MAX (F), but do not overfill.
If frequent additions are required, have
the system inspected by a professional
workshop. Kia recommends to visit an
authorised Kia dealer/service partner.
Recommended engine coolant
僅 When adding coolant, use only deion
-
ized water or soft water for your vehi
-
cle and never mix hard water in the
coolant filled at the factory. An
improper coolant mixture can result in
serious malfunction or engine dam
-
age.
僅 The engine in your vehicle has alumi
-
num engine parts and must be pro
-
tected by an ethylene-glycol with
phosphate based coolant to prevent
corrosion and freezing.
OYB070084L
OYB076010