Why is my Audi A4 making a knocking sound?

I recently noticed that my Audi A4 is making a knocking sound when I accelerate. What could be causing this and how can I fix it?

It is possible that the knocking sound is coming from your engine. This could be due to low oil levels or a faulty spark plug. It's best to have a mechanic check it out to avoid any further damage.

Check the condition of your tires as well. If the tread is wearing unevenly or if a tire is low on air, it could also cause a knocking sound while driving.

Another possibility is that there is an issue with the suspension or steering components. Have a professional inspect these areas to rule out any potential problems.