BMW Genuine Water Hose - Upper Radiator Hose To Expansion Tank (Vent Hose) 135i M Coup&eacute; X1 28i X1 28iX 135i 335i 335xi 335i 335xi 335i 335xi 335is 335i 335is 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