The high performance BMW M3 is the personification of "Freude am Fähren," or joy in driving as the Germans say. Developed from high performance racing machines of the late 1970's, the BMW M3 combines the sporty with the practical in a wide variety of body styles. Given the substantial investment BMW M3 ownership represents, does it make sense to allow performance to deteriorate for want of an easily replaced part that costs under $40? Yet, this is exactly what happens when the air filter is not changed.

The BMW M3 air filter is a vital component of the fuel system, since the fuel needs to be mixed with oxygen in order to ignite in the cylinders. without an air filter, the engine would soon clog with dust and other particles.

A dirty air filter will protect the BMW M3 engine from dust, but it will keep sufficient air from entering the fuel mixture as well. This results in a fuel-air mixture that is too "rich" - in other words, too much fuel and not enough air. This causes the engine to idle too quickly and increases its fuel consumption. Eventually, this results in excess carbon, which interferes with valve operation and can lead to a host of other issues. A new BMW M3 air filter should be part of scheduled tune-ups, along with new plugs, fuel filter and injector cleaning. When it's time for a new BMW M3 air filter, shop our online catalog for the best prices.We carry the full line of genuine, factory-authorized BMW components for every repair and maintenance need at discount prices you won't find anywhere else.