M56 Valve Cover Vent Hose - E46 325i M56 SULEV

This is the crankcase vent hose that takes oil vapor from the M56 valve cover and redirects it back into the intake manifold on 2003-2005 E46 325i models with the M56 SULEV engine. Unlike the standard M54 engine, the M56 has its crankcase vent system contained in the valve cover. The only hose to replace is this one running from the valve cover to the manifold. This hose can become clogged with oil sludge if the vent valve is not functioning properly. And the plastic connectors at both ends are known to be weak and break when removed.

This is a Genuine BMW M56 crankcase vent hose with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.