Water Hose - Radiator to Auxiliary Radiator. for 740i (2016-2019), 740i xDrive (2017-2019), 640i xDrive Gran Turismo (2018-2019), 530e (2018-2020), 530e xDrive (2018-2020), 740e xDrive (2017-2019), 530i (2017-2020), 540i (2017-2020), 530i xDrive (2017-2020), 540i xDrive (2017-2019)