What is the cause of the knocking noise in my Audi engine?

I have noticed a knocking noise coming from my Audi engine and I'm not sure what could be causing it. It seems to be more pronounced when accelerating. Any ideas on what the issue could be?

The most common reason for knocking noises in Audi engines is low engine oil. Check your oil levels and top up if necessary to see if that resolves the issue.

Another possible cause could be worn out engine bearings. It's important to get this checked by a mechanic as it can cause more serious damage if ignored.