Why does my Audi A6's engine sound like it's rattling when accelerating?

I recently noticed that my Audi A6 makes a rattling noise when I accelerate. It seems to be coming from the engine area. Any ideas on what could be causing this and how to fix it?

It is likely that there is an issue with your engine's timing belts or pulleys. These can wear out over time and cause a rattling noise when accelerating. It is important to have this checked and repaired by a certified mechanic to avoid further damage to your engine.