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 climate.
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 the MAX and the MIN marks on the side of the coolant reservoir when the engine is cool.
If the coolant level is low, add enough distilled (deionized) water to bring the level to the MAX mark, but do not overfill. If frequent additions are required, we recommend that you see an authorized HYUNDAI dealer for a cooling system inspection.
WARNING
Turn the vehicle off and wait until the engine cools down. Use extreme care when removing the engine coolant cap and/or water-cooled intercooler coolant 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 cooling 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.
Information
The coolant level is influenced by the engine temperature. Before checking or refilling the coolant, turn the engine off.
WARNING
The electric motor for the cooling fan may continue to operate or start up when the engine is not running and can cause serious injury. Keep hands, clothing and tools away from the rotating fan blades of the cooling fan. Always turn off the vehicle unless the vehicle has to be inspected with the engine on. Be cautious as the cooling fan may operate if the negative (-) battery terminal is not disconnected.
WARNING
Make sure the coolant cap is properly closed after refilling coolant. Otherwise, the engine could be overheated while driving.
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 |
Information
If in doubt about the mix ratio, a 50% water and 50% antifreeze mix is the easiest to mix together as it will be the same quantity of each. It is suitable to use for most temperature ranges of -31°F (-35°C) and higher.
We recommend that coolant be changed by an authorized HYUNDAI dealer according to the Maintenance Schedule at the beginning of this chapter.
WARNING
Do not use engine coolant or antifreeze in the washer fluid reservoir. Engine coolant can severely obscure visibility when sprayed on the windshield and may cause loss of vehicle control resulting in an accident. Engine coolant may also cause damage to paint and body trim.
NOTICE
To prevent damage to engine parts, put a thick towel around the engine coolant cap and/or inverter coolant cap before refilling the coolant to prevent the coolant from overflowing into engine parts, such as the alternator.
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