What is the intake grille in front of the car?
there are aerodynamic obstacles in the consideration.
If the engine radiator water temperature is too high alone can not fully heat the natural air, the fan will automatically start the auxiliary heat. The car is running up the air is backward, the fan flow direction is also backward, the heat after the temperature rise from The rear of the hood near the windshield position, as well as the car below (the following is open) backward flow, the heat on the discharge out.
The main function of the front grille is heat dissipation and intake.
