BMW 520d whirring noise when driving

go to the magicmechanic website and send him this--hes the best there is and will rply

1. Start the car
2. While stationary, use the stalk "scroll" button and find the INIT icon. Push the stalk button.
3. Start to drive
4. The system initialises itself while you drive...

take it for a run on high way
high speed, low gear to clear the emmision

Spin that wheel by hand as fast as you can. If you can hear the noise coming from right behind the tire it's probably a wheel bearing.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

a rumble is usually 1 of 2 things, tires or wheel bearing, you have to listen for when the noise occurs. is it at low speeds or high speeds, turning or going straight down the road. another thing you have to check are your tires, make sure you are rotating them at every other oil change. the lack of rotating tires can also have a rumbling affect but that usually dont happen unless it is really severe cupping going on with your tires.

So more than likely it is going to be a wheel bearing, but listen and pay attention to when the rumbling occurs make note of it and keep a record of when it happens, take it to the shop, let them know what you kept track of , so they can have a better understanding of the situation, but i will bet it is a wheel bearing. good luck and remember to give me a report

I have the same problem. I hear a whining/whirring noise when parked, turning either way, and even when driving at slow speeds. The noise gets worse when turning at slow speeds :(

Does it sound like an exhaust pipe hitting the floor, or is it a different sound?

When you think the engine is really powerful even my dads one makes that sound. I think it's the parts like airbags, handbrake area which have degraded due to Aging.

Sounds like a wheel bearing. Get another diagnosis from a good shop or two..

Do you hear some faint rumbling or moaning while going straight? Do you hear it louder in a right turn than a left (or vice versa)? If so, you likely have a wheel bearing problem. Let me know when/where you hear the noise, and we should be able to localize it.