Why does my Audi A7 engine sound abnormal?

I have noticed a strange noise coming from my Audi A7's engine. It's a high-pitched whirring sound that seems to be more prominent when starting the car or accelerating. What could be causing this and how can I fix it?

It is possible that the noise is coming from a faulty drive belt or tensioner. It's important to have this checked and replaced if necessary, as a worn belt or tensioner can lead to engine damage.

Check your oil level and make sure it is at the recommended level. Low oil can cause abnormal engine sounds. If the level is fine, it may be worth having your oil changed and using a different brand to see if the noise improves.