Hyundai Ioniq: Engine Mechanical System / Cooling System

Cylinder Block. Repair procedures

Disassembly    • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system...

Coolant. Repair procedures

Engine Coolant Refilling and Bleeding [Drain]    • Never remove the reservoir tank cap when the engine is hot.• Serious scalding could be caused by hot fluid under high pressure escaping from the radiator...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Ambient Temperature Sensor. Description and operation

DescriptionThe ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperature.The sensor output will be used for discharge temperature control, temperature regulation door contrl, blower motor level control, mix mode control and in-car humidity control...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Auto Defoging Actuator. Repair procedures

Inspection1.Turn the ignition switch OFF. 2.Disconnect the auto defogging connector. 3.Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the auto defogging actuator operates to the close position when connected in reverse...