Why is my Audi 80's engine making a rattling noise?

I recently noticed that my Audi 80's engine is making a rattling noise, especially when idling. Could this indicate a larger issue with my engine? What should I do to address it?

It is possible that the rattling noise is coming from a loose or worn part in your engine. It is important to get this checked out by a mechanic as soon as possible, as it could lead to further damage if left unaddressed.

Another possible cause of the rattling noise could be a problem with your exhaust system. This could be due to a loose or damaged component, or a clog in the system. It is best to have a professional inspect and repair your exhaust to prevent any potential issues.