Why is my Audi 80's engine making a buzzing noise?

I noticed a buzzing noise coming from my Audi 80's engine while driving. It's a bit concerning and I'm not sure what could be causing it. Any ideas on what could be the issue?

It's possible that your engine is not getting enough oil, which could be causing the buzzing noise. I recommend checking your oil levels and topping it off if needed.

Another possibility could be a faulty alternator. If the alternator is not functioning properly, it could be causing the noise. I suggest taking your car to a mechanic for further diagnosis.