Kia Niro: Hybrid Motor Cooling System / Electric Water Pump(EWP) Repair procedures

Kia Niro 2017 (DE HEV) Service Manual / Service Highlight / Hybrid Motor Cooling System / Electric Water Pump(EWP) Repair procedures

Removal

1.	Disconnect the 12V battery negative cable.

2.	Remove the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

3.	Drain the coolant of hybrid motor cooling system. (Refer to Hybrid Motor Cooling System - "Coolant")

4.	Separate the hose (A) from the reservoir.

5.	Separate the hose (A).

Disconnect the EWP connector (A) and then remove the EWP after removing the bracket (B).

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

7.	Separate the hose (A, B) from the EWP.

Installation

Install in the reverse order of removal.

•	Be careful not to damage other hose by when tightening the clamp.

•	Install the clamp in the specified direction to prevent interference with surrounding components.

•	Refill the hybrid motor cooling system with coolant and then perform the air bleeding using the GDS/KDS. (Refer to Hybrid Motor Cooling System - "Coolant")

•	Confirm the coolant leak or fluid leak from the hose connections part in state of engine start.

Electric Water Pump(EWP) Specifications

Specification Item Specification Type Water pump Operation Motor drive Voltage ...

Coolant Repair procedures

Refilling And Bleeding Never remove the cap when the engine is hot. Serious scalding could be caused by hot fluid ...

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Electric Water Pump(EWP) Components and components location
Components Location 1. Eletric water pump (EWP) ...

Kia Niro 2017 (DE HEV) Service Manual: Description and operation
Description The high voltage battery system consists of the BMS ECU (Battery Management System ECU), Power Relay Assembly (PRA), safety plug, battery temperature sensor, and battery ambient sensor. Especially the BMS ECU controls SOC (State Of Charge), power, cell balancing, cooli ...