There may be some other possible reasons yet, such as air inflow, or failing of the air flow sensor, or some problems with Valvetronic. (mywikimotors.com)
The active air flaps take into account engine coolant temperature, vehicle speed and other variables to intelligently control air inflow relative to air drag. (greencarcongress.com)
A more significant ice extent retreat is expected in the Canadian / Alaska sector of Arctic due to enhanced warmer air inflow. (searcharcticscience.org)