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.

Electric Water Pump(EWP). Components and components location

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

Coolant. Repair procedures

Changing the Coolant and Performing Air Bleeding Never remove the cap while the engine is hot. When you remove the cap from the reservoir, hot coolant may spew out due to the high pressure, causing serious injury...

Other information:

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Light Bulbs

Consult an authorized HYUNDAI dealer to replace most vehicle light bulbs. It is difficult to replace vehicle light bulbs because other parts of the vehicle must be removed before you can get to the bulb. This is especially true for removing the headlamp assembly to get to the bulb(s)...

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Wheel Alignment and Tire Balance

The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. In most cases, you will not need to have your wheels aligned again. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset...