Why does my Audi A5's exhaust make a strange noise?

I've noticed that my Audi A5's exhaust has started to make a strange rattling noise, almost like a metal clanking. It usually happens when I accelerate or decelerate. What could be causing this and is it something that needs immediate attention?

It sounds like your exhaust pipe may have come loose or there could be a problem with the exhaust hanger. I would recommend taking it to a mechanic to have it checked and repaired if necessary.

Another possible cause of the rattling noise could be a damaged muffler or catalytic converter. I suggest having a professional inspect and potentially replace these components as needed.