Kia Niro: Hybrid Motor Cooling System / Reservoir Repair procedures

Removal
1.

Remove the under cover.

(Refer to Engine Mechanical System - "Engine Room Under Cover")

2.

Drain the coolant of hybrid motor cooling system.

(Refer to Hybrid Motor Cooling System - "Coolant")

3.

Separate the hose (A) and then remove the reservoir (B) by loosening the bolts.

Tightening torque :

7.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.7 lb·ft)

Installation
1.

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.

Inspection

Inverter Reservoir Cap Testing

1.

Remove the inverter reservoir cap, wet its seal with coolant, and then install it on a pressure tester.

2.

Apply a pressure of 93.16 - 122.58kPa (0.95 - 1.25kgf/cm², 13.51 - 17.78psi).

3.

Check for a drop in pressure.

4.

If the pressure drops, replace the cap.

Radiator Leakage Test

1.

Wait until engine is cool, then carefully remove the inverter reservoir cap and fill the reservoir with coolant, then install it on the pressure tester.

2.

Apply a pressure tester to the reservoir and apply a pressure of 93.16 - 122.58kPa (0.95 - 1.25kgf/cm², 13.51 - 17.78psi).

3.

Inspect for inverter coolant leaks and a drop in pressure.

4.

Remove the tester and reinstall the inverter reservoir cap.

Reservoir Components and components location
Components Location 1. Reservoir ...

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

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