The engine air filter element in a second generation (2012, 2013, 2014, 2015 & 2016) “New” VW Beetle with the TSI 1.8 liter inline four cylinder turbocharged motor should be cleaned at every oil change and changed when it is overly soiled. To view my DIY instructions for the procedure (including the replacement part numbers) by clicking on the text link or thumbnail image below.