Why does my Audi A4 produce a rattling noise when I accelerate?

I recently noticed a rattling noise coming from my Audi A4 when I accelerate. What could be causing this issue and how can I fix it?

The most common cause of a rattling noise when accelerating in an Audi A4 is a loose heat shield. This can be fixed by tightening the heat shield bolts or using an automotive adhesive to secure it in place.

Another possible cause of the rattling noise could be a worn-out engine mount. If the mount is no longer able to absorb the vibrations of the engine, it can result in a rattling sound. Have a mechanic check and replace the engine mount if necessary.