The Ford Fiesta Mk7 A/C Heater Control Unit Panel Switch 2013-2017 8A61-18549-AE is a control switch designed specifically for the interior of a Ford Fiesta car manufactured between 2013-2017. This panel switch, made by AE, allows the driver to easily control the heating and cooling system in the car, providing a convenient and essential feature for maintaining a comfortable temperature while driving. With its sleek design and functionality, this control unit panel switch is a crucial component for the overall control and operation of the vehicle's heating and ventilation system.