Genuine OEM Volkswagen Ventilation and Heating Control Unit, part number 6Q0820045H. This control unit is responsible for managing the vehicle's climate control system, allowing adjustments to temperature, fan speed, and air direction. It is typically located in the center console. Features multiple rotary knobs for intuitive operation. Genuine OEM parts are manufactured to exact specifications, ensuring proper fit, function, and long-term reliability in the climate control system.