The crank case breather hoses are part of the engines system designed to keep harmful emissions from getting out into the environment. The hose recirculation fumes and gases from within the engine block back into the combustion chamber to be burnt clean. There are three breather hoses on the Mercedes C320 and if you are performing any work on the injectors, MAF or valve gaskets that involve moving the hoses you can pretty much count on replacing them. The hoses sit on top of the valve covers and get extremely hard and brittle with age. There is one hose on the right side and two hoses on the left. While the right side hose traditionally last longer than the other two, if you are going to be working around the heads plan on replacing all three.

We offer hoses from the following brands: Genuine Mercedes-Benz, O.E.M., Febi & Meyle

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