Kia Niro: Engine Coolant / Checking the coolant level

WARNING Removing radiator cap

WARNING

The electric motor (cooling fan) is controlled by engine coolant temperature, refrigerant pressure 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.

If your vehicle is equipped with GDI, the electric motor (cooling fan) may operate until you disconnect the negative battery cable.

Engine 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 ...

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 si ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Hybrid Control Unit (HCU) Schematic diagrams
HCU Terminal And Input/Output Signal Terminal Function Connector [C133-S] Pin No. Description Connected to 1 HCU ground Chassis ground 2 HCU ground ...

Kia Niro 2017 (DE HEV) Service Manual: Components and components location
Components Location 1. High Voltage Battery System Assembly 2. High Voltage Battery Pack Assembly 3. Power Relay Assembly (PRA) 4. High Voltage Front Cover 5. High Voltage Rear Cover 1. High Voltage Battery System Assemb ...

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