The 2005 Porsche Cayenne has double overhead cam (DOHC).
The 2003 Porsche Cayenne has double overhead cam (DOHC).
The 2010 Porsche Cayenne has double overhead cam (DOHC).
The 2006 Porsche Cayenne has double overhead cam (DOHC).
The 2008 Porsche Cayenne has double overhead cam (DOHC).
The 2009 Porsche Cayenne has double overhead cam (DOHC).
The 2013 Porsche Cayenne has double overhead cam (DOHC).
The 2004 Porsche Cayenne has double overhead cam (DOHC).
The 2014 Porsche Cayenne has double overhead cam (DOHC).
The 2011 Porsche Cayenne has double overhead cam (DOHC).
The 2012 Porsche Cayenne has double overhead cam (DOHC).
The Porsche Cayenne 3.0 diesel engine uses a timing chain rather than a cam belt. Timing chains are generally more durable and require less frequent maintenance compared to cam belts. It's important to follow the manufacturer's service recommendations to ensure the longevity and performance of the engine.