Why does the Audi A1 produce a whistling noise while accelerating?

I noticed a high-pitched whistling sound while accelerating in my Audi A1. What could be causing this noise and how can I fix it?

This whistling noise could be caused by a loose or worn serpentine belt. It's important to have this checked and replaced if necessary, as it can lead to more serious engine problems.

Another possible cause of the whistling noise could be a faulty turbocharger. I would recommend bringing your Audi A1 to a certified mechanic for a proper diagnosis and repair.