What are the common causes of oil leaks in the Audi A4?

I have noticed some oil spots on the ground where I park my Audi A4. What could be causing this and what should I do about it?

Oil leaks can be caused by a number of things, including worn gaskets, faulty oil pan, or even a loose oil filter. It is important to address the issue as soon as possible to prevent any further damage to your engine.

My Audi A4 had a similar issue and it turned out to be a leaking valve cover gasket. Make sure to have a mechanic check all possible sources of the leak before determining the cause.