Genuine OEM Audi Air Conditioner Expansion Valve, part number 8W0820679. This crucial component accurately controls the amount of refrigerant entering the evaporator, which is essential for efficient heat exchange and effective air conditioning. It is integrated into the vehicle's climate control system. Made from durable metal, it weighs approximately 0.137 kg and measures 8 cm long, 6 cm wide, and 3.4 cm high. Opting for a genuine OEM expansion valve ensures precise factory calibration, preventing common AC issues and guaranteeing reliable, consistent cooling performance.