Why is my Audi A5 engine making a knocking noise?

I have noticed a strange knocking noise coming from my Audi A5 engine. It seems to happen randomly and doesn't seem to coincide with any specific driving pattern. What could be causing this and how should I address it?

It sounds like you may have an issue with your engine's valves or bearings. I recommend taking your car to a trusted mechanic to have it evaluated and repaired if necessary. This type of issue can escalate quickly and cause serious damage if not addressed promptly.