How to troubleshoot a squeaky timing belt in an Audi 80?

I recently noticed that my Audi 80's timing belt is making a squeaky noise. It's not too loud, but noticeable. What could be causing this and how can I fix it?

The squeaky noise could be caused by a loose or worn out timing belt tensioner. I suggest inspecting and tightening the tensioner first.

Another possible cause could be a damaged or misaligned timing belt. Carefully check for any signs of wear or tears and realign if necessary.

It's also worth checking the condition of the timing belt itself, as it could be nearing its replacement interval. If it looks worn out or cracked, it's time to replace it.