Here is a link; to the service manual:
Testing:
Are you having a problem with the oil pressure light or low oil pressure? Any trouble codes?
Volkswagen Workshop Manuals > Beetle L4-2.0L (AEG) (2000) > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sender > Component Information > Locations
Beetle L4-2.0L (AEG) (2000) > Volkswagen Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sender > Component Information > Locations
workshop-manuals.com
Testing:
Volkswagen Workshop Manuals > Beetle L4-2.0L (AEG) (2000) > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sender > Component Information > Diagrams > Page 2143
Beetle L4-2.0L (AEG) (2000) > Volkswagen Workshop Manuals > Engine, Cooling and Exhaust > Engine > Engine Lubrication > Oil Pressure Sender > Component Information > Diagrams > Page 2143
workshop-manuals.com
Are you having a problem with the oil pressure light or low oil pressure? Any trouble codes?