If it's the same sound I have, it's like a gnarling/whining sound. It goes up and down in pitch with engine rpms. It's most noticeable for me during 1-3k rpm. The noise first started on my car at around 2-3k miles. I took it to the dealer in May and they didn't really know the cause, but suspected it to be an oil pump. They supposedly lubed something or put an additive in and my service advisor said they will look into it and order the oil pump. The noise was gone after that service, but after another few thousand miles, it's been back and I've just been too busy to take it back in. I did call my service advisor in June to follow up about the part order and she said they were still investigating it.

If it's the same noise, I'm glad (but also sad) to hear that it's not just my car. When I'm driving in parking garages and/or lots it sounds horrible and is I think it is very embarrassing.

I also feel there's a small loss in power, but I can't really tell now because I've lived with it for so long and just keep it in Power mode.

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2022 X5M Comp Dravit Grey/Full Silverstone
Previous:
2018 M5 Black/Full Silverstone
2015 X5M Donington Grey/Full Silverstone
2010 X5M Space Grey/Full Silverstone
2003 4.6is Silver/Black