Why does my Audi A6's engine make a tapping noise?

I recently noticed a tapping noise coming from my Audi A6's engine. It seems to be getting louder and more frequent. What could be causing this and how should I address it?

It's possible that your engine is low on oil. Check your oil level and top off if necessary. If the noise persists, it could be a sign of a bigger issue and you should take it to a trusted mechanic.

Another potential culprit could be a worn-out timing belt. This will need to be replaced to avoid causing damage to your engine. Make sure to have it checked and replaced if necessary.