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

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Mechanical System / 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: Components and Components Location

Component Location 1. Start Stop Button(SSB)2. FOB key3. Trunk lid open switch4. Smart key unit5. RF receiver6. Body control module7. Interior antenna 18. Interior antenna 29. Trunk antenna10. Door handle & door antenna11. Bumper antenna ...

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

Replacement Hood Assembly Replacement • When removing and installing the hood, an assistant is necessary. • Be careful not to damage the hood and body. • When removing the clips, use a clip remover. 1. Using a screwdriver, lift the socket clips (A) up slightly on both ends of the ...