BMW 3-Series PCV & Breather Components

The constantly increasing pollution has resulted in a series of strict norms aimed at regulating vehicle emissions. Since the second half of the twentieth century, emission control systems have been carefully developed and engineered, and all automakers had to build their vehicles according to strict government regulations. The Positive Crankcase Ventilation (PCV), introduced in the early 1960s, is designed to capture the so called blow-by gas, a percentage of the air/fuel mixture that leaks from the piston to the crankcase, and that has been identified as a major source of hydrocarbon emissions. The BMW 3-Series emissions range from 44 to 204 g/km, a good score that places the model among the most eco-friendly automobiles in the entry-level luxury segment.

To achieve such a notable ranking, every part of the PCV was carefully tailored according to the engine design, and it should be kept in top shape. The breather is a vital part of the PCV system, being in charge of providing the required amount of fresh air to blow the fumes out of the crankcase. Here you'll find a large assortment of BMW 3-Series PCV and breather components, carefully designed and solidly built to provide efficient performance and last for years to come.