How to maintain the power steering in an Audi A5?

I have recently purchased an Audi A5 and I noticed that the power steering doesn't feel as smooth as before. What could be causing this and how can I maintain it?

The power steering fluid may need to be flushed and replaced. This should be done every 60,000 miles or so. Check your car's manual for specific recommendations.

It might also be due to a belt or pulley issue. Make sure to have your mechanic check these components for any cracks or wear.

Another possible cause could be a leak in the power steering system. Have a professional inspect for any leaks and repair them as soon as possible.