Hyundai Ioniq: Hybrid Motor Cooling System / Electric Water Pump(EWP). Repair procedures

Hyundai Ioniq (AE) 2017-2025 Service Manual / Hybrid Motor System / Hybrid Motor Cooling System / Electric Water Pump(EWP). 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.	Disconnect the hose (A) from the reservoir tank.

5.	Disconnect the hose (A).

Unscrew the mounting bolt (A).

Tightening torque : 9.8 - 11.8N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

7.	Disconnect the connector (A).

Remove the electric water pump (EWP) after removing the bolts(B).

Tightening torque : 9.8 - 11.8N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Installation

To install, reverse the removal procedure.

•	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.

•	Fill the coolant in the hybrid cooling system and use the GDS to perform air bleeding. (Refer to Hybrid Motor Cooling System - "Coolant".)

•	Check for the leakage in the hose connections while the engine is running.

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