BMW 3.0L 2007+ Upper Radiator Hose GENUINE to Expansion Tank Water Hose - Upper Radiator Hose to Expansion Tank (Vent Hose) Brand NEW part with full 1 year warranty. BMW part# 17 12 7 565 094, check fit below. Genuine BMW part, recently made: not been lying around. Please see Fitment Chart below, under PRODUCT DESCRIPTION.