M56 Secondary Air Pump Valve - E46 325i M56 SULEV

This is the air pump valve used in the secondary air system on 2003-2005 E46 325i models with the M56 SULEV engine. A failed valve will change the air mixture in the exhaust, resulting in a rich mixture that can damage catalytic converters or contribute to carbon build-up in the secondary air system.

This is an OEM M56 air pump valve manufactured by Pierburg - the original supplier to BMW for this part, as well as many other engine and transmission mounts. As the OEM it 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.