WM 153619 Removing And Installing Chain TENSIONER On 4.8-Litre DFI Engines (Except Cayenne Tip, Cayenne Man, Cayenne Diesel): Information: Overview
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Component changes for model year 2009 as of October 2008