How to Handle a High-Pitched Noise Coming From My Audi A6 Engine?

I recently noticed a high-pitched noise coming from my Audi A6 engine. It's quite annoying and I'm not sure what to do about it. Any suggestions on how to handle this issue?

First, you'll want to check the oil level in your engine. Low oil can sometimes cause high-pitched noises. If that's not the issue, it's likely that there is a problem with your timing belt or tensioner. It's best to take your car to a trusted mechanic to have them inspect and possibly replace these parts.

Another possible cause of this noise is a faulty alternator. The alternator is responsible for keeping your battery charged and if it's not functioning properly, it could be making the high-pitched noise you're hearing. Take your car to a professional to have them test the alternator and replace it if needed.