Checking Polyrib belt state

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The maintenance work on the air cleaner is composite work.

Remove air cleaner housing.
Mark belt travel direction with a colored pen.
WARNING: Risk of damage!
Never remove Polyrib belt when warm. The belt would deform and could be damaged.
Turn the tensioning roller -7- on the socket wrench (wrench size 27) clockwise and simultaneously remove the belt from the drive pulleys.

Fig 1: Turning Polyrib (Serpentine) Belt Tensioning Roller Using Socket Wrench
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Visually inspect the condition of the belt and replace it if necessary. Check belt pulley for damage.
Install Polyrib belt in the order shown.

Fig 2: Installing Order Of Polyrib (Serpentine) Belt
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Twist the tensioning roller -7- clockwise and simultaneously place the belt on the idler pulley -8- . Subsequently relieve the tensioning roller slowly.

Fig 3: Twisting Tensioning Roller For Placing Polyrib (Serpentine) Belt On Idler Pulley
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Visually check whether the belt is correctly positioned on all wheels.