Home >> Porsche >> 2008 >> Cayenne Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 15 - Engine - Cylinder Head, Valve Control >> WM 154719 Removing And Installing Guide And TENSIONING Rails On 4.8-Litre DFI Engines (Cayenne S Tip, Cayenne S Man, Cayenne Turbo, Cayenne GTS Tip, Cayenne Man, Cayenne Turbo S) >> Preliminary Work