Why is the Audi A6 engine making a strange noise?

I recently bought a used Audi A6 and it has been making a strange noise when I accelerate. It seems to be coming from the engine. Is this something I should be concerned about?

It's possible that the strange noise is coming from a faulty bearing or a loose belt in the engine. I would highly recommend taking your Audi A6 to a certified mechanic for a thorough inspection.

Another potential cause for the noise could be a worn out exhaust system. I suggest getting the exhaust system checked and replaced if needed.