Engine Cooling System Hyundai Santa Fe III

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Replacement And Air Bleeding

Note. 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.

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1. Make sure the engine and radiator are cool to the touch.
2. Remove the radiator cap (A).
3. Loosen the drain plug (A), and drain the coolant.
4. Tighten the radiator drain plug securely.
5. Remove, drain and reinstall the reservoir. Fill the tank halfway to the MAX mark with water, then up to the MAX mark with antifreeze.
6. Fill the radiator with water through the radiator cap and tighten the cap. NOTE: To most effectively bleed the air, pour the water slowly and press on the upper/lower radiator hoses.
7. Start the engine and allow to come to normal operating temperature. Wait for the cooling fans to turn on several times. Accelerate the engine to aid in purging trapped air. Shut engine off.
8. Wait until the engine is cool.
9. Repeat steps 1 to 8 until the drained water runs clear.
10. Fill fluid mixture with coolant and water (45~60%) (except for North America, Europe and China: 45~50%) slowly through the radiator cap. Push the upper/lower hoses of the radiator so as bleed air easily. NOTE: 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 then 60% will impair cooling efficiency and are not recommended. CAUTION: 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.
11. Start the engine and run coolant circulates.
12. When the cooling fan operates and coolant circulates, refill coolant through the radiator cap.
13. Repeat step. 11 until the cooling fan 3 ~ 5 times and bleed air sufficiently out of the cooling system.
14. Install the radiator cap and fill the reservoir tank to the "MAX" (or "F") line (A) with coolant.
15. Run the vehicle under idle until the cooling fan operates 2 ~ 3 times.
16. Stop the engine and wait coolant gets cool.
17. Repeat 10 to 15 until the coolant level doesn't fall any more, bleed air out of the cooling system. NOTE: As it is to bleed air out to the cooling system and refill coolant when coolant gets cool completely, recheck the coolant level in the reservoir tank for 2 ~ 3 days after replacing coolant. Coolant capacity: 9.1 L (9.6 Us.qts, 8.0 lmp, 2.4 qts)

Scheme 6

Description

Control the cooling motor voltage in according to the duty (300Hz) of ECM.

[ECU --> PWM Input Signal (SI: 300Hz)]

Scheme 7

COOLING FAN OPERATION CONDITION

Specifications

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1. Disconnect the battery "-" terminal.
2. Remove the air cleaner assembly. (Refer to " «AIR CLEANER»(/hyundai/santa-fe/iii-2012-2016/remont/exhaust/#intake-and-exhaust-system) ")
3. Remove the engine room under cover.
4. Remove the front bumper cover. (Refer to " «FRONT BUMPER COVER»(/hyundai/santa-fe/iii-2012-2016/remont/exterior-body-panels/#front-bumper-grille) ")
5. Disconnect the fan motor connector (A).
6. Remove the air intake shield (A).
7. Remove the upper air guard (A).
8. Remove the horn. (Refer to «HORN - SANTA FE»(/hyundai/santa-fe/iii-2012-2016/remont/horns/#horn) .
9. Remove the side air guard (A). Tightening torque: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 Kgf.m, 5.8 ~ 8.7 Ib-ft)
10. Loosen the cooling fan mounting bolts and then disconnect the cooling fan assembly (A) from radiator.
11. Install in the reverse order of removal.

Scheme 15

1. Disconnect the battery "-" terminal.
2. Remove the LH front wheel guard. (Refer to " «FRONT WHEEL GUARD»(/hyundai/santa-fe/iii-2012-2016/remont/exteriorinterior-trim/#body-side-molding) ")
3. Disconnect the connectors (A) and then remove the PWM (B).
4. Install in the reverse order of removal.

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1. Remove the cooling fan (A) from the cooling fan assembly. Tightening torque: 2.7 ~ 3.2 N.m (0.28 ~ 0.33 kgf.m, 2.0 ~ 2.4 lb-ft)
2. Disconnect the fan motor connector (A) from the resistor.
3. Remove the fan motor (A) from the cooling fan shroud. Tightening torque: 3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)
4. Assemble in the reverse order of disassembly.

Fan Motor

1. Disconnect the fan motor connector from the resistor.
2. Connect the battery voltage to the "+" terminal and ground to "-" terminal.
3. Check the cooling fan motor operates well.

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1. Disconnect the battery "-" terminal.
2. Remove the air cleaner assembly. (Refer to " «AIR CLEANER»(/hyundai/santa-fe/iii-2012-2016/remont/exhaust/#intake-and-exhaust-system) ")
3. Remove the engine room under cover.
4. Loosen the drain plug and drain the engine coolant. (Refer to " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
5. Remove the front bumper cover. (Refer to " «FRONT BUMPER COVER»(/hyundai/santa-fe/iii-2012-2016/remont/exterior-body-panels/#front-bumper-grille) ")
6. Disconnect the radiator upper hose (A) and lower hose (B). NOTE: When installing radiator hoses, install as shown in the illustrations.
7. Disconnect the fan motor connector (A) beside the wiring harness.
8. Remove the air intake shield (A).
9. Disconnect the ATF cooler hose. (Refer to " «AUTOMATIC TRANSAXLE»(/hyundai/santa-fe/iii-2012-2016/remont/automatic-trans/#automatic-transaxle-system) ")
10. Remove the upper air guard (A) and radiator over flow hose (B).
11. Remove the horn. (Refer to «HORN - SANTA FE»(/hyundai/santa-fe/iii-2012-2016/remont/horns/#horn) Body Electrical System - "Horn")
12. Remove the side air guard (A). Tightening torque: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 Kgf.m, 5.8 ~ 8.7 Ib-ft)
13. Loosen the cooling fan mounting bolts and then disconnect the cooling fan assembly (A) from radiator.
14. Remove the radiator upper bracket (A). Tightening torque: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 Kgf.m, 5.8 ~ 8.7 Ib-ft)
15. Separate the A/C condenser (A) from the radiator assembly (B).
16. Pull the radiator up and then remove the radiator from the vehicle.
17. Install in the reverse order of removal.
18. Fill the radiator with coolant. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
19. Start the engine and check for leaks. NOTE: Bleed air from the cooling system. Start engine and let it run until it warms up. (Until the radiator fan operates 3 or 4 times.) Turn off engine. Check the coolant level and add coolant if needed. This will allow trapped air to be removed from the cooling system. Put the radiator cap on tightly, then run engine again and check for leaks.

Scheme 30

1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester.
2. Apply a pressure of 79.43 ~ 122.58 kpa (0.81 ~ 1.25 kg/cm 2 , 11.52 ~ 17.78 psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.

Scheme 31

1. Wait until engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant, then install it on the pressure tester.
2. Apply a pressure tester to the radiator and apply a pressure of 79.43 ~ 122.58 kpa (0.81 ~ 1.25 kg/cm 2 , 11.52 ~ 17.78 psi).
3. Inspect for engine coolant leaks and a drop in pressure.
4. Remove the tester and reinstall the radiator cap. NOTE: Check for engine oil in the coolant and/or coolant in the engine oil.

Scheme 32

1. Disconnect the battery "-" terminal.
2. Disconnect the over flow hose (A).
3. Remove the reservoir tank (B). Tightening torque: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
4. Install in the reverse order of removal.
5. Recheck the coolant level. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")

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Removal and Installation

Note. Mark all wiring and hoses to avoid misconnection.

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1. Disconnect the battery "-" terminal.
2. Remove the engine under cover.
3. Loosen the drain plug and drain the engine coolant. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
4. Remove the air cleaner assembly. (Refer to " «AIR CLEANER»(/hyundai/santa-fe/iii-2012-2016/remont/exhaust/#intake-and-exhaust-system) ")
5. Disconnect the radiator upper hose (A) and lower hose (B). NOTE: When installing radiator hoses, install as shown in the illustrations.
6. Disconnect the WTS & gauge unit connector (A).
7. Separate the engine wiring protector mounted on the water temperature control assembly. (Refer to «ENGINE COOLANT TEMPERATURE SENSOR (ECTS)»(/hyundai/santa-fe/iii-2012-2016/remont/testing-diagnostics/#engine-control-system) CAUTION: When installing, be sure to install the wiring protector mounting bolts of the original. If other bolts (longer or larger) has been installed, this can damage the water temperature control assembly and coolant may be leak.
8. Disconnect the throttle body coolant hoses (A).
9. Disconnect the heater hoses (B).
10. Remove the water temperature control assembly (A). Tightening torque: 19.6 ~ 23.5 N.m (2.0 ~ 2.4 kgf.m, 14.5 ~ 17.4 lb-ft)
11. Install in the reverse order of removal.
12. Fill the radiator with coolant and check for leaks. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ") NOTE: Refill engine coolant. Refill radiator and reservoir tank with engine coolant. Bleed air from the cooling system. Start engine and let it run until it warms up. (Until the radiator fan operates 3 or 4 times.) Turn Off the engine. Check the level in the radiator, add coolant if needed. This will allow trapped air to be removed from the cooling system. Put radiator cap on tightly, then run the engine again and check for leaks. Clean the battery posts and cable terminals with sandpaper assemble them, then apply grease to prevent corrosion.

Scheme 41

1. Remove the intake manifold. (Refer to " «INTAKE MANIFOLD»(/hyundai/santa-fe/iii-2012-2016/remont/exhaust/#intake-and-exhaust-system) ")
2. Remove the water temperature control assembly. (Refer to Cooling System - " «WATER TEMPERATURE CONTROL ASSEMBLY»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
3. Remove the water center pipe (A). Tightening torque: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft) NOTE: Do not reuse water pipe O-ring.
4. Install in the reverse order of removal.

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1. Disconnect the battery "-" terminal.
2. Remove the engine under cover.
3. Drain the engine coolant. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
4. Remove the drive belt. (Refer to " «DRIVE BELT»(/hyundai/santa-fe/iii-2012-2016/remont/mechanical/#timing-system) ")
5. Remove the water pump pulley (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
6. Remove the water pump (A) and gasket (B). NOTE: Clean the contact face before assemble. Always use a new gaskets. Always use a new seal bolt (Bolt L) Tightening torque (3EA): 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) (1EA): 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) (1EA): 21.6 ~ 26.5N.m (2.2 ~ 2.7kgf.m, 15.9 ~ 19.5lb-ft) (1EA): 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) (1EA): 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) (1EA): 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) (4EA): 21.6 ~ 23.5N.m (2.2 ~ 2.4kgf.m, 15.9 ~ 17.4lb-ft)
7. Install in the reverse order of removal.
8. Fill the radiator with coolant and check for leaks. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")

Inspection

1. Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary.
2. Check the bearing for damage, abnormal noise and sluggish rotation, and replace the coolant pump assembly if necessary.
3. Check for coolant leakage. If coolant leaks from hole, the seal is defective. Replace the coolant pump assembly. NOTE: A small amount of "weeping" from the bleed hole is normal.

Troubleshooting

Scheme 47

Note. Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the thermostat, even if the engine tends to overheat.

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1. Disconnect the battery "-" terminal.
2. Remove the engine under cover.
3. Drain engine coolant so its level is below thermostat. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")
4. Remove the radiator lower hose (A).
5. Remove the water inlet fitting (A) and the thermostat (B). Tightening torque: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
6. Install in the reverse order of removal.
7. Fill the radiator with coolant and check for leaks. (Refer to Cooling System - " «COOLANT»(/hyundai/santa-fe/iii-2012-2016/remont/cooling-system-mechanical/#engine-cooling-system) ")

Scheme 50

1. Immerse the thermostat in water and gradually heat the water.
2. Check the valve opening temperature. Valve opening temperature: 88±2°C (109.4±3.6°F) Full opening temperature: 100°C (212°F) If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift. Valve lift : 10 mm (0.3937 in.) or more at 100°C (212°F) If the valve lift is not as specified, replace the thermostat.

See also:
• AIR CLEANER
• FRONT BUMPER COVER
• HORN - SANTA FE
• FRONT WHEEL GUARD
• AUTOMATIC TRANSAXLE
• ENGINE COOLANT TEMPERATURE SENSOR (ECTS)
• DRIVE BELT
• COOLANT