Why is my Audi A4 producing strange engine noises?

I have noticed that my Audi A4 has been producing unusual sounds when I start it up or accelerate. What could be causing this and what should I do?

It's possible that your engine is low on oil or that there is an issue with the oil pump. Check your oil level and replace it if needed. If the issue persists, take your car to a trusted mechanic for further inspection.

Your serpentine belt may need to be replaced. This belt helps power your engine and if it is worn or damaged, it can cause strange noises. Have a mechanic examine your serpentine belt and replace it if necessary.