How to fix rattling noise in my Audi A2 engine?

My Audi A2's engine is making a loud rattling noise, especially when I start the car. It seems to get worse when I accelerate. What could be causing this and how can I fix it?

It is likely that the noise is coming from the pulleys and belts in your engine. Over time, these can become loose or worn, causing them to rattle against each other. I recommend bringing your car to a mechanic to have them inspected and replaced if necessary.