Kia Sportage Hybrid 2024 Owner's Manual page 428

Maintenance
CAUTION
the engine is operating or hot. Doing
so might lead to cooling system and
engine damage. Also, hot coolant or
steam could cause serious personal
injury. Turn the engine off and wait
until it cools down. Use extreme care
when removing the coolant reservoir
cap. Wrap a thick towel around it, and
turn in slowly to the first stop. Step
back whilst 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 continue turn -
ing to remove it. Even if the engine is
not operating, do not remove the
coolant reservoir cap or the drain plug
whilst the engine and radiator are hot.
Hot coolant and steam may still blow
out under pressure, causing serious
injury.
僅 When the engine overheats from low
engine coolant, suddenly adding
engine coolant may cause cracks in
the engine. To prevent damage, add
engine coolant slowly in small quanti -
ties.
僅 Do not drive with no engine coolant. It
may cause water pump failure and
engine seizure, etc.
NOTICE
Make sure the coolant cap is properly
closed after refill of coolant. Otherwise
the engine could be overheated whilst
driving.
9 18
僅Never attempt to
remove the coolant
reservoir cap whilst
Operation
1. Check if the coolant reservoir cap
label is straight In front.
ONQ5EP061032L_2
2. Make sure that the tiny protrusions
inside the coolant cap are securely
interlocked.
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.
僅 Do not use alcohol or methanol cool -
ant or mix them with the specified
coolant.
僅 Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze.
Refer to the following table for mixture
percentage.
Ambient Tempera -
ture
-15°C (5°F)
-25°C (-13°F)
-35°C (-31°F)
-45°C (-49°F)
WARNING
radiator are hot. Scalding hot coolant
and steam may blow out under pres -
sure causing serious injury.
Engine coolant
Mixture Percentage (volume)
Antifreeze Water
35 65
40 60
50 50
60 40
僅Do not remove the
coolant reservoir cap
when the engine and