KIA Niro: If the engine overheats (Kia NIRO Hybrid)


When the temperature gauge indicates overheating, loss of power or a loud pinging, knocking noise will occur, being the engine too hot.

Cooling down the vehicle


  1. Stop the vehicle to a safe place.
  2. Turn the hazard warning flasher on.
  3. Set the parking brake.
  4. Change the gear to P (Park).
  5. If the air conditioning is on, turn it off.
  6. Check the following:
  • Engine cooling fan
  • Water pump drive belt
  • Belt tension
  • Leaks of the radiator, hoses or under the vehicle (If the air conditioning had been in use, it is normal for cold water to be draining from it when you stop).
  1. Wait until the engine temperature returns normal.
  2. Proceed with caution and keep an eye on further signs of overheating.

If the cooling fan does not work


  • Stop the engine.

If the coolant is running out


  1. Stop the engine.
  2. Do not open the hood.
  3. Wait until coolant has stopped running or the steam stops.
  4. Add enough coolant to the reservoir.

If the water pump drive belt is broken


  1. Stop the engine.
  2.  Contact a professional workshop or seek other qualified assistance. Kia recommends to call an authorized Kia dealer/service partner.

If overheating happens again


  • Contact a professional workshop or seek other qualified assistance. Kia recommends to call an authorized Kia dealer/service partner.


  • While the engine is running, keep hair, hands and clothing away from the fan and drive belts to prevent injury.
  • Do not remove the radiator cap when the engine is hot.

    This may result in coolant being blown out of the opening and cause serious burns.


  • Serious loss of coolant indicates there is a leak in the cooling system and this should be checked as soon as possible by a professional workshop. Kia recommends to visit an authorized Kia dealer/service partner.
  • When the engine overheats from low engine coolant, suddenly adding engine coolant may cause cracks in the engine. Add engine coolant slowly in small quantities to prevent damage.


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