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Kia Seltos: Maintenance / Engine coolant

Contents:

The Kia Seltos high-pressure cooling system uses a reservoir filled with year-round antifreeze coolant. This coolant is installed at the factory and is designed to help protect the engine from overheating, freezing, and internal corrosion.

Check the antifreeze protection and coolant level at least once a year, preferably at the beginning of the winter season, and before driving the Kia Seltos to a colder climate.

Kia Seltos engine coolant radiator and inverter cap warning

WARNING

Radiator/Inverter cap

Never attempt to remove the radiator cap or inverter cap while the engine is running or hot. Doing so may damage the cooling system and engine, and escaping hot coolant or steam could cause serious bodily injury.

Recommended coolant

When adding coolant to your Kia Seltos, use only deionized water or soft water. Never mix hard water with the factory-filled coolant. An improper coolant mixture can cause serious malfunction, corrosion, overheating, or engine damage.

  • The engine in the Kia Seltos contains aluminum components and must be protected with a phosphate-based ethylene-glycol coolant to help prevent corrosion and freezing.

  • Do not use alcohol-based or methanol-based coolant, and do not mix these products with the specified coolant.

  • Do not use a mixture containing more than 60% antifreeze or less than 35% antifreeze, as this can reduce cooling and freeze-protection performance.

  • The cooling circuit of a vehicle equipped with a heat pump system may freeze in extremely low temperatures if the antifreeze concentration is below 45%.

Refer to the following table for the proper coolant mixture percentage by ambient temperature.

Ambient Temperature

Mixture Percentage (volume)

Antifreeze

Water

5 °F (-15 °C)

35

65

-13 °F (-25 °C)

40

60

-31 °F (-35 °C)

50

50

-49 °F (-45 °C)

60

40

Kia Seltos engine coolant warning before opening radiator cap

WARNING

Kia Seltos radiator cap hot coolant warning symbol

Radiator cap

Do not remove the radiator cap when the engine and radiator are hot. Scalding coolant and steam may escape under pressure and could cause serious injury.

Kia Seltos Smartstream G1.6 T-GDi coolant cap location

Smartstream G1.6 T-GDi

Kia Seltos gasoline 2.0 MPI coolant cap location

(Gasoline) 2.0 MPI

Kia Seltos coolant cap proper closing notice NOTICE

Make sure the coolant cap is properly closed after refilling coolant.

If the coolant cap is not secured correctly, the engine may overheat while driving.

  1. Check that the radiator cap label is positioned straight toward the front.

    Kia Seltos engine room front view radiator cap label alignment

    Engine room front view

  2. Make sure the small protrusions inside the coolant cap are securely interlocked.

    Kia Seltos engine room rear view coolant cap locking protrusions

    Engine room rear view

Changing the coolant

Have the coolant in your Kia Seltos changed by an authorized Kia dealer according to the Maintenance Schedule listed at the beginning of this chapter.

Kia Seltos coolant replacement caution near radiator cap

CAUTION

Place a thick cloth or fabric around the radiator cap before refilling coolant to help prevent overflow from reaching engine components such as the alternator.

Other information:

Kia Seltos SP2 (2021-2026) Owner's Manual: Installing a CRS

After selecting the correct child seat for your child, check that it fits properly in the Kia Seltos seating position where it will be used. Follow all instructions provided by the child restraint manufacturer when installing the seat. These general steps can help when installing a CRS in your Kia Seltos: Properly secure the child restraint to the vehicle.

Kia Seltos SP2 (2021-2026) Owner's Manual: All Wheel Drive (AWD) system

The All Wheel Drive (AWD) system in the Kia Seltos distributes engine power to the front and rear wheels to help provide improved traction when driving conditions require extra grip. AWD can be useful when additional traction is needed, such as on slippery, muddy, wet, or snow-covered roads. It helps the Kia Seltos maintain more stable driving performance when road surfaces become difficult.