Hyundai Ioniq (AE): Hybrid Motor Cooling System / Radiator. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Motor System / Hybrid Motor Cooling System / Radiator. Repair procedures

Removal
1.
Remove the 12 V battery (-) cable.
2.
Remove the undercover.
(Refer to Engine Mechanical System - "Engine Room Undercover".)
3.
Drain the coolant from the hybrid cooling system.
(refer to Hybrid Motor Cooling System - "Coolant".)
4.
Remove the engine radiator.
(Refer to Engine Mechanical System - "Radiator".)
5.
Remove the front bumper.
(Refer to Body - "Front Bumper".)
6.
Use the recovery / reproduction/charging device to recover the coolant.
(Refer to Heater and Air Conditioner-"Maintenance Procedure".)
7.
Remove the hoses (A) and (B) from the electric radiator.

   
•
Be careful not to cause any damage on the hose when tightening the clamp.
•
Mount the clamp tightening part in the designated direction so that interference does not occur with the adjacent parts.
•
After mounting the reservoir, check for the leakage in the hose connections while the engine is running.
8.
Remove the coolant line (A) and (B).
9.
Unscrew the condenser fixing bolt (C).

   
•
While removing the line, mount the plug or cap to protect the system from humidity and dust.
•
Replace the O-ring (A) with a new one when mounting the coolant line.

10.
Remove the electric radiator (A).

Installation
1.
To install, reverse the removal procedure.

    Component location1. HPCU (Hybrid Power Control Unit)(LDC+MCU+HCU+Reservoir)2. Hybrid drive motor3. Hybrid starter generator (HSG)4. Electrical radiator5.

    Component location1. Reservoir2. Hybrid drive motor3. Hybrid starter generator (HSG)4. Electrical radiator5. Electric water pump (EWP)

    Other information:

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: A/C Pressure Transducer. Description and operation

    DescriptionThe A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor when the temperature of refrigerant line is very high or very

    Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation

    DescriptionIn ordinary cars, the mechanical water pump mounted on the engine for heating purposes is activated to circulate the cooling water, but in hybrid cars, AEWP is used to circulate the cooling water when the engine is not operating. Classification System Cooling water used

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