Radiator Vent Line, Rein - E82 135i/1M, E9X 335i N54, E84 X1 28i

This part is listed by BMW as BMW part number 17127565094 (17 12 7 565 094) and is described as the top vent line from the radiator to the expansion tank for N54-powered E90, E92, E93 335i (2007-2010), 335is (2011-2013), E82 135i (2008-2010), E82 1M Coupe. It also fits E84 X1 28i and 28i xDrive.

It consists of a black plastic tube and rubber hose which attaches at the top of the radiator, runs along the top edge of the radiator, and connects to the top of the coolant expansion tank. The plastic center section is known to become brittle and crack.

This is a radiator/expansion tank vent line manufactured by Rein (CRP) Automotive - an original supplier to BMW for many engine components. As an OEM, Rein meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.