Noticed this today: when standing still, there is a low frequency vibration (probably ≤ 40Hz) lasting about 2 seconds, then cycling through every 5-10 seconds thereafter. It seems to originate at a structurally-sensitive point that vibrates the frame of the car. Reminded me a bit of a sub-woofer in a car parked next to me. On another forum it was speculated that this is the heat pump in action. Any comments? P.S: AC was off when this happened, so must be something else
I, too, get this on my 2021 when it wakes up after I pull open the driver’s side door. I suspect it is related to the heat pump, as turning off the A/C, waiting a bit, then turning it back on will cause the sound. It is like a subwoofer effect.
I am getting this too. Parked, with spotify playing and fan blowing. Thought it was something wrong with the music. Turned down volume. Yes there was the rumble, about 2 seconds long, maybe 30 seconds apart.
Sheesh, will have to get the car from my wife and see if I can hear the same vibration. Thanks for sharing.
Forgot to mention 2021 M3 Long Range, 2 weeks old. I was in the car a few minutes before Reminds me when I park and sit in a Prius without turning off the car. Initially it is on battery and silent, then eventually there is a low rumble as the gas engine starts.
Yeah, it’s the heat pump doing it’s thing. Even if your climate control was off it does stuff to regulate battery temps, if I’m not mistaken.
Happens to my brand new 2021 LR, so it's normal. I figured it was normal, but yes, it's a bit unnerving to hear (and FEEL) all those new noises initially.
I also have the rumbling in my 2021 and I believe it's the heat pump (and octovalve system) activating. I find it a bit annoying, but I'm fine making the tradeoff for better efficiency and lack of engine noise.