The engine air filter element in a sixth generation (2009, 2010, 2011, 2012, 2013, 2014 & 2015) Ford Fiesta with the Duratec 1.6L I4 Ti-VCT motor should be cleaned at every oil change and replaced when overly dirty. Take a look at my DIY instructions for the procedure (with the replacement part numbers) by clicking on the text link or thumbnail image below.
2009-2015 Ford Fiesta 1.6L I4 Engine Air Filter Replacement Guide
