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

Removal

1.	Disconnect the negative (-) cable of the 12V battery.

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 hoses (A, B) from the EWP.

Installation

Install in the reverse order of removal.

•	Be careful not to damage other hoses nearby 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")

•	After installing, check for leakage of coolant or fluid from hose connection during engine start.

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

Components Location 1. Reservoir ...

Kia Niro 2017 (DE HEV) Service Manual: Specifications
Specifications Items Specifications Rated voltage 5V Load Max. 1mA (Relay load) Illuminations (LUX) 50 1.20 ± 0.26 V 100 2.08 ± ...

Kia Niro 2017 (DE HEV) Service Manual: High voltage shut-off procedures
High Voltage Shut-off Procedures • Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure t ...