Why is my Audi A3 engine making a loud noise?

I recently noticed that my Audi A3 engine is making a loud rattling noise. What could be the cause of this issue and how can I fix it?

It's possible that the noise is coming from a loose or worn out belt in your engine. Take your car to a certified mechanic to have it checked and replaced if necessary. It's important to address this issue as soon as possible to avoid further damage to your engine.

Another possible cause of the loud noise could be an issue with your exhaust system. Make sure to check for any leaks or damage and have it repaired if needed. A faulty exhaust can affect the performance of your car and also pose a safety hazard.