How to fix squeaky noise in Audi 80 engine?

There seems to be a high-pitched squeaking noise coming from the engine of my Audi 80. It only happens when the engine is running and gets louder as I accelerate. Any ideas on what could be causing this and how to fix it?

It sounds like you may have a loose or worn serpentine belt. Check to see if it is properly tensioned and if not, tighten or replace it as needed. Also, check the belt for any signs of wear and tear.

Another possible cause of this noise could be a faulty pulley or tensioner in the engine. Inspect these components and replace them if necessary. It is important to address this issue before it escalates into more severe engine damage.