Why is my BMW 3 Series producing a strange noise during acceleration?

I recently noticed that my BMW 3 Series is making a strange noise every time I accelerate. From time to time, there is a loud humming sound coming from the engine that is accompanied by vibrations. I'm concerned that this could be a sign of a bigger issue. What could be causing this and what should I do?

It's possible that there is an issue with the engine or exhaust system. I would recommend taking your car to a certified BMW mechanic for a diagnostic check. They will be able to accurately pinpoint the source of the noise and determine the best course of action.

Is the noise only present during acceleration or does it also occur at idle or when decelerating? It may be helpful to record the sound and play it for the mechanic to help them diagnose the issue. It's always better to be safe and have a professional take a look.

Have you recently had any maintenance or repairs done on your BMW? It's possible that something may have been installed incorrectly or is loose. Make sure to mention this to the mechanic when you bring in your car.