Why does my Volkswagen Passat's engine make a strange noise?

I recently noticed a strange noise coming from my Volkswagen Passat's engine. It sounds like a high-pitched squealing and I'm not sure what could be causing it. Should I take it to a mechanic or is this something I can fix myself?

It's always best to err on the side of caution and take your car to a mechanic when you notice unusual noises coming from the engine. This could be a sign of a bigger issue that needs to be addressed.

The noise could be coming from a loose belt in your engine. Try tightening or replacing the belt to see if that solves the issue. If not, it's best to have a professional take a look.

I've had a similar issue with my Volkswagen Passat and it turned out to be a problem with the exhaust system. I would recommend taking it to a mechanic to get it checked out.