Why does my Audi A7 engine make a knocking noise?

I recently noticed that my Audi A7 engine has been making a knocking noise while driving. What could be causing this issue and how can I fix it?

The knocking noise could be caused by a variety of issues, such as spark plug or fuel injector problems. It's important to have a mechanic diagnose the issue to determine the exact cause.

In some cases, the knocking noise could be caused by a worn out or damaged engine valve. Make sure to have your valves checked and replaced if necessary.