Kia Optima Hybrid: Cooling System / Active Air Flap(AAF) Description and Operation

Description
The AAF (Active Air Flap) is located between radiator grille and radiator, and consists of an actuator and 6 air flaps. The system receives information from EMS, FATC, TCU, MCU and LDC via CAN communication . With this information, the AAF controls the motor properly then the air flaps adjust air flow from radiator grille.
During high speed driving, it will reduce the air resistance by closing the air flaps. This improves the fuel efficiency and enhance the driving stability. If overheat occurs, the system will open the air flaps to drop the temperature.
During the A/C operation, the system will open the air flaps to maintain the refrigerant pressure.The system will close the air flaps to warm up the engine rapidly during cold start.
Specifications
Items
Specifications
Operating temperature
-22~185°F (-30~85°C)
Operating voltage
DC 9~16V
Rated voltage
DC 12V
Rated current (No load)
300mA or less

Thermostat Troubleshooting

Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bolts and check leakage ...

Active Air Flap(AAF) Components and Components Location

Components 1. Air duct2. Cover3. Actuator assembly4. Loader5. Flaps6. Link7. Housing ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: TPMS Sensor Repair procedures


Removal Tire Removal 1. Deflate tire & remove balance weights.     • The tire bead should be broken approx. 90° from the valve side of the wheel. The bead breaker should not be set too deep. • Avoid tire/tool contact with the valve on dismount. • Dismount should end near the valve. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Power Out Side Mirror Switch Repair procedures


Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the front door trim panel. (Refer to the BD group - "Front door") 3. Disconnect the connector and remove the door mirror switch (A) after removing the screws. 4. Check for continuity between the terminals in each switch position according ...

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