Why is there a strange noise coming from my Audi A4 engine?

I've noticed a strange noise coming from my Audi A4's engine, especially when I accelerate. It almost sounds like a rattling noise. What could be causing this and should I be concerned?

It's possible that the noise you are hearing is due to a loose or worn out belt in your engine. I recommend taking your car to a trusted mechanic to have it inspected and potentially replaced.

Another possible cause could be a problem with your exhaust system. It's important to have this checked as it can sometimes lead to larger issues if left untreated.

One thing to check is the oil level in your engine. Low oil can sometimes cause strange noises. Make sure to check your oil regularly and top it off if needed.