Coolant Return Pipe, N54 Rear Turbo, Rein - E82 135i/1M, E60 535i, E89 Z4

The cooling system for the N54 engine in the 2008-2010 E82 135i/1M and E60 535i includes lines going into and out of each turbocharger. Over time, and with heat and vibration, one or more of these coolant pipes will leak. This is the return / outlet pipe for the rear turbo on the N54 in the 135i/1M and 535i (the E9X 335i coolant line is slightly different). It returns coolant to the engine block after running through the rear turbo.

This is a 135i/535i turbo cooling pipe manufactured by Rein Automotive (CRP) - a front-line supplier of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein 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.