Why does my Audi A2's engine make a rattling noise at low speeds?

I just bought a used Audi A2 and I noticed that the engine makes a strange rattling noise when I am driving at low speeds. It seems to go away when I accelerate. Is this normal or is something wrong with my engine?

This could be a sign of a loose or failed component in the engine. It's best to get it checked by a mechanic to avoid any further damage.

It's important to determine the source of the noise as soon as possible. It could be a simple fix or a more serious issue. Bring it to a mechanic for a diagnosis.