Why is my Audi A5 making a strange noise while driving?

I recently noticed a strange noise coming from my Audi A5 while driving, almost like a high-pitched whirring sound. What could be causing this and how can I fix it?

It's possible that the noise is coming from a damaged fan belt. I suggest getting it checked and replaced if necessary. The noise could also be caused by low or dirty transmission fluid, so consider getting a flush and refill as well.