About this item
Compatible With - BMW 5(F10) 520i /X1 (E84) 
Quality products that are designed to enhance performance
Even the smallest of particles is reliably filtered
Functional reliability over the entire service interval
Very high level of dirt separation efficiency

The purpose of the engine air filter is to prevent dust, dirt and other environmental contaminants from getting into the engine. Over time, the air filter becomes dirty and clogged, and will need to be replaced