BMW Genuine Water Hose - Upper Radiator Hose To Expansion Tank (Vent Hose) 128i 128i 323i 325i 325xi 328i 328xi 330i 330xi 323i 328i 328xi 325xi 328i 328xi 328i 328xi 328i 328xi 328i 328xi 328i 328i BMW Genuine Water Hose - Upper Radiator Hose To Expansion Tank (Vent Hose) This part is used in Cooling system coolant hoses -- Cooling System Water Hoses -- Manufacturer Warranty: 24000 miles or 2 years Please see Product Description below for vehicle compatibility