How to fix a faulty power steering in an Audi 80?

I've noticed that my power steering in my Audi 80 is not functioning properly. What could be the cause of this issue and what steps should I take to fix it?

It's possible that the power steering fluid is low and needs to be refilled. Check the fluid level and top it off if needed.

Another potential cause could be a leak in the power steering system. Inspect the system for any visible leaks and repair or replace any faulty components.