Hyundai Ioniq (AE): Engine Mechanical System / Cooling System

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

Engine Coolant Refilling and Bleeding [Drain]    â€¢ 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) 2017-2022 Service & Repair Manual: PTC Heater. Description and operation

DescriptionThe PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core.The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective hybrid engine.

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Rear Corner Safety ON/OFF Switch. Repair procedures

Inspection1.Disconnect the negative (-) battery terminal.2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel")3.Remove the lower crash pad switch assembly (A) after disengaging the mounting clip.4.Remove the rheostat switch connector (A).

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