Why is the oil pressure light on in my Audi A6?

Recently, the oil pressure light has been consistently coming on in my Audi A6, even when I start the car. I'm starting to get worried about potential engine damage. What could be causing this and how can I fix it?

The most common reason for the oil pressure light coming on in an Audi A6 is low oil pressure. This could be due to a leak in the oil system, a faulty oil pump, or old and dirty oil. It's important to have this checked out as soon as possible, as low oil pressure can cause serious damage to your engine.