Air Filter, OEM - E60/E61 525i/528i/530i, E85/E86 Z4 M

This part is listed by BMW as BMW part number 13717521033 (13-71-7-521-033) and is described as OEM Air Filter for E60 5 Series 525i 528i 530i and Z4 E85 M Roadster M Coupe.

Since the quality of the intake air has a direct affect on performance and efficiency it just makes sense to have a clean air filter. Clogged and dirty filters will prevent good airflow to the engine and the engine computer has no choice but to compensate. To help keep your engine running at its optimum best, always replace or clean your air filter once a year.

This is an OEM air filter manufactured by an original supplier to BMW for this part, as well as many other filters. 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.