Hyundai Accent (HC): Cooling System / Coolant

- Replacement and Air Bleeding

• Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator.

• When pouring engine coolant, be sure to shut the relay box lid and not to let coolant spill on the electrical parts or the paint. If any coolant spills, rinse it off immediately.

• When changing the coolant and draining air, be sure to follow the filling instructions of the Integrated Thermal Management Module (ITM).

1.Make sure the engine and radiator are cool to the touch.

2.Remove the radiator cap (A).

3.Remove the engine room under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

4.Loosen the drain plug (A), and drain the coolant.

5.Tighten the radiator drain plug securely after draining the coolant.

6.Remove the cooling fan assembly and after draining engine coolant in the reservoir tank, clean the reservoir tank. (Refer to Cooling System - "Cooling Fan")

7.Install the cooling fan assembly. (Refer to Cooling System - "Cooling Fan")

8.Fill with fluid mixture of coolant and water (45 - 60%) slowly through the radiator cap.

• Make sure to insert the maximum amount of coolant after turning off the engine and cutting the power of the components.

Coolant capacityMT : Approx. 6.4L(1.69 US.gal., 6.76 US,qt., 5.63lmp.qt.)IVT : Approx. 6.6L(1.74 US.gal., 6.97 US,qt., 5.80 Imp.qt.)

• Press the upper / lower hoses on the radiator so that the air can get out easily.

• Use only genuine antifreeze/coolant.

• For best corrosion protection, the coolant concentration must be maintained year-round at 45 - 60% minimum.Coolant concentrations less than 45 - 60% may not provide sufficient protection against corrosion or freezing.

• Coolant concentrations greater than 60% will impair cooling efficiency and are not recommended.

• Do not mix different brands of antifreeze/coolants.

• Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.

9.Start the engine.

• Keep the engine idle.

10.Connect the GDS.

11.Use the GDS to activate the "integrated thermal management module (ITM) coolant refill mode".

12.After the cooling fan operates once, warm up the engine for 20 minutes.

13.Disconnect the GDS, and then restart the engine after turning the engine OFF.

14.Install the radiator cap (A).

15.Check the coolant quantity after driving the vehicle.

16.If the coolant is insufficient, replenish it.

17.Install the engineroom under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

1.Make sure the engine and radiator are cool to the touch.

2.Remove the radiator cap (A).

3.Remove the engine room under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

4.Loosen the drain plug (A), and drain the coolant.

5.Tighten the radiator drain plug securely after draining the coolant.

6.Remove the cooling fan assembly and after draining engine coolant in the reservoir tank, clean the tank. (Refer to Cooling System - "Cooling Fan")

7.Install the cooling fan assembly. (Refer to Cooling System - "Cooling Fan")

8.Fill with fluid mixture of coolant and water (45 - 60%) slowly through the radiator cap.

• Make sure to insert the maximum amount of coolant after turning off the engine and cutting the power of the components.

Coolant capacityMT : Approx. 6.4L(1.69 US.gal., 6.76 US,qt., 5.63lmp.qt.)IVT : Approx. 6.6L(1.74 US.gal., 6.97 US,qt., 5.80 Imp.qt.)

• Press the upper / lower hoses on the radiator so that the air can get out easily.

• Use only genuine antifreeze/coolant.

• For best corrosion protection, the coolant concentration must be maintained year-round at 45 - 60% minimum.Coolant concentrations less than 45 - 60% may not provide sufficient protection against corrosion or freezing.

• Coolant concentrations greater than 60% will impair cooling efficiency and are not recommended.

• Do not mix different brands of antifreeze/coolants.

• Do not use additional rust inhibitors or antirust products; they may not be compatible with the coolant.

9.Disconnect the integrated thermal management module (ITM) connector (A).

• When disconnecting the integrated thermal management module (ITM) connector, make sure that there is no power to the engine and other components.

• Be careful that static electricity and other voltages are not applied to the integrated thermal management module (ITM).

• Do not bring anything with magnetism, such as a magnet, close to the integrated thermal management module (ITM).

10.Start the engine.

• Keep the engine idle.

11.After the cooling fan operates once, warm up the engine for 20 minutes.

12.After shut engine off and connect the integrated thermal management module (ITM) connector (A).

• When connecting the integrated thermal management module (ITM) connector, water or oil must be completely removed from the connector and no foreign matters should be entered.

• When replacing the integrated thermal management module (ITM) connector, be sure to use the specified connector.

13.Start the engine.

14.Check whether the integrated thermal management module (ITM) is working by listening to the operating sound.

• The operation sound of the integrated thermal management module (ITM) may occur before or after the engine start.

15.Check the coolant quantity after driving the vehicle.

16.If the coolant is insufficient, replenish it.

17.Install the engineroom under cover.(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")