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: Trunk Trim Repair procedures


Replacement     • Put on gloves to protect your hands. • Use a plastic panel removal tool to remove interior trim pieces to protect from marring the surface. • Take care not to bend or scratch the trim and panels. 1. Remove the trunk trim. 2. Installation is the reverse of removal.   ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Brake Pedal Components and Components Location


Components 1. Brake pedal stroke sensor2. Stop lamp switch3. Brake pedal ...

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