The Genuine BMW Empty Housing For Heater-Air Condit.Unit - 64119355529 is a replacement part for the heating and air conditioning unit in BMW vehicles. It is an empty housing unit that does not include any internal components, allowing for easy installation of new parts. This product is designed to fit specific BMW models and is made with high-quality materials to ensure durability and proper functioning. It is an essential component for maintaining the heating and cooling system in a BMW vehicle.