Kia Optima Hybrid Owner's Manual Quiz
Engine Mechanical System

Active Air Flap (AAF) Description and Operation

In this manual: Engine Mechanical System
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
~1min read

Description

The AAF (Active Air Flap) is located between the radiator grille and the radiator, and consists of an actuator and 6 air flaps. The system receives information from EMS, FATC, TCU, MCU and LDC via CAN communication. Using this information, the AAF controls the air flaps. When properly operated, the air flaps regulate the airflow through the radiator grille. During high-speed driving, this reduces air resistance by closing the air flaps. This improves fuel efficiency and increases driving stability. If overheating occurs, the system opens the air flaps to lower the temperature. While the air conditioner is operating, the system opens the air flaps to maintain refrigerant pressure. The system closes the air flaps to warm up the engine quickly during a cold start. Specifications
Items Specifications
Operating Temperature -22~185°F (-30~85°C)
Operating Voltage 9 - 16 V DC
Rated Voltage 12 V DC
Rated Current (No Load) 300 mA or less

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.