How do I know if my Audi A2's engine is damaged?

I recently purchased a used Audi A2 and I'm concerned about potential engine damage. What are some warning signs to look out for and how can I prevent further damage?

First, listen for any unusual sounds while the engine is running. This could be a sign of internal damage. Additionally, keep an eye on your engine's temperature and regularly check your oil and coolant levels. Prevention is key in avoiding costly engine repairs.

Check for any visible leaks or smoke coming from the engine. These are indications of potential engine damage. Also, pay attention to any drastic changes in engine performance or fuel efficiency. Don't ignore warning signs and address any issues promptly.