Why does my Audi A2 make a rattling noise when idling?

I recently purchased a used Audi A2 and have noticed a rattling noise when the car is idling. It seems to disappear when I speed up. What could be causing this issue and how can I fix it?

Based on your description, it sounds like the issue may be with your exhaust system. It's possible that a component is loose or damaged, causing the rattling noise. It's best to take your car to a certified mechanic to diagnose and fix the issue.

Another potential cause of the rattling could be a worn-out engine mount. This can happen over time with normal wear and tear, and can cause the engine to vibrate and create the rattling noise. It's important to address this issue as soon as possible to prevent further damage to your car.