Why does my Audi A2's engine make rattling noises?

I recently noticed that my Audi A2's engine makes a rattling noise when I start the car. It seems to go away after a few minutes, but I'm worried it might be a sign of a bigger issue. Has anyone else experienced this and found a solution?

It's likely due to worn out camshaft bearings. They can start to rattle at low speeds and get louder as the car speeds up. Have a mechanic check it out to see if they need to be replaced.

Could be an issue with the valve train or a loose exhaust component. Both can cause rattling sounds in the engine. Best to have it checked by a professional to determine the exact cause.