Kia Optima: Removal and Installation - Radiator. Repair procedures - Cooling System - Engine Mechanical System - Kia Optima TF 2011-2020 Service ManualKia Optima: Removal and Installation

1. Disconnect the battery terminals. (Refer to Engine and transaxle assembly in this group)
2. Remove the air cleaner assembly and the intercooler inlet/outlet hoses. (Refer to Engine and transaxle assembly in this group)
3. Remove the battery and battery tray. (Refer to Engine and transaxle assembly in this group)
4. Remove the under covers. (Refer to Engine and transaxle assembly in this group)
5. Loosen the drain plug, and drain the engine coolant. Remove the radiator cap to drain with speed.
6. Disconnect the radiator upper hose (A).

7. Disconnect the lower hose (A), the fan motor connector (B) and then remove the cooling fan assembly (C).

Tightening torque :

4.9 ~ 7.8 N.m (0.5 ~ 0.8 kgf.m, 3.6 ~ 5.8 lb-ft)


8. Disconnect the ATF cooler hoses (A/T only). (Refer to AT group)

9. Disconnect the over flow hose (A) from the radiator.

10. Remove the radiator mounting brackets (A).

Tightening torque:

3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)


11. Separate the condenser from the radiator and then remove the radiator assembly (A).

12. Installation is the reverse order of removal.
13. Fill the radiator with coolant and check for leaks.
Х 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.

Radiator. Repair procedures
...

Inspection
Radiator Cap Testing 1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester. 2. Apply a pressure of 93.16 ~ 122.58k ...

See also:

Summer tires
Kia specifies summer tires on some models to provide superior performance on dry roads. Summer tire performance is substantially reduced in snow and ice. Summer tires do not have the tire tr ...

System Operation
Ventilation 1. Set the mode selection switch to the position. 2. Set the air intake control switch to the outside air position. 3. Set the temperature control knob to the desired position. 4. Se ...

Repair procedures
On-vehicle Inspection Х Check that the battery cables are connected to the correct terminals. ...

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