WM 477619 Removing And Installing Vacuum Pump (Except CAYMAN, CAYMAN Black Edition, CAYMAN S Black Edition, BOXSTER Black Edition, BOXSTER S Black Edition, CAYMAN R): Information

A vacuum pump is used to provide the vacuum for the brake booster. This vacuum pump, together with the oil suction pump on the left cylinder head, is designed as a tandem pump -1-  . It is driven by the exhaust camshaft on the left cylinder bank.

Fig 1: Overview Of Vacuum Pump

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Tandem pump
2. Screws
3. Sealing ring