13 72 001 Replacing air cleaner element (N54)
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
Open retainers.
Open upper section (1) of intake filter housing and remove.
Remove air cleaner element (1).
Installation:
Clean upper and lower sections of intake filter housing from inside.
Install new air cleaner element.