Every 45,000 mies. Change the water pump every other time you change the cam belt as it is driven by the belt. Warning:This is an interference engine and if the belt breaks serious engine damage will occur.
No, the cams are run via a chain.
No. it uses a chain - fitted for life of the car.
behind cam belt tension pulley
The 2014 Porsche Panamera has double overhead cam (DOHC).
The 2006 Porsche Cayenne has double overhead cam (DOHC).
The 2011 Porsche Panamera has double overhead cam (DOHC).
The 2003 Porsche Boxster has double overhead cam (DOHC).
The 2012 Porsche Cayman has double overhead cam (DOHC).
The 2013 Porsche Boxster has double overhead cam (DOHC).
The 2008 Porsche Cayman has double overhead cam (DOHC).
The 2002 Porsche Boxster has double overhead cam (DOHC).