Oil light is coming on on 2003 Volkswagen Passat

What can I do I have already ordered a oil pan gasket so I can pull the oil pan.I was going to check the screen to make sure it is not stopping up and slowing the oil flow down. I also thought it might be the sending unit..
Thanks James OLinger Alabama..

Asked by for the 2003 Volkswagen Passat
I would most definitely check or even replace the sending unit. For many years, Volkswagen Jettas, Passats and Golfs have had issues with their Oil Pressure Sending units and there have been updates for them.