The product is a genuine OEM BMW oxygen sensor designed for the 2012-2018 BMW F30 328i 2.0 RWD XDRIVE model. This sensor is used for measuring the oxygen content in the exhaust gas, ensuring optimal engine performance and emission levels. It is suitable for both pre- and post-catalytic converter locations on the vehicle, providing accurate readings for efficient operation. Made by BMW with OE/OEM part numbers 12 13 14 15 16 17 18 and manufacturer part numbers 805637 and 758278001, this oxygen sensor is a reliable and high-quality component for your BMW vehicle.