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Bass off on new M3P

I just picked up my new 2021 M3P and I’m having issues with the sound. On the drive home I kept hearing a boomy bass rattle and assumed it was someone next to me. I later determined it was coming from my car. I was listening to a Spotify 80’s list at low volume with nothing that should have caused it. I check the setting and they were all at the center defaults. The only way I could lessen it was too turn the bass down but even with it all the way down it would still do it just not as often. The 2018 Model 3 Long range I traded never did anything remotely like this. Anyone else experience this?
 
I just picked up my new 2021 M3P and I’m having issues with the sound. On the drive home I kept hearing a boomy bass rattle and assumed it was someone next to me. I later determined it was coming from my car. I was listening to a Spotify 80’s list at low volume with nothing that should have caused it. I check the setting and they were all at the center defaults. The only way I could lessen it was too turn the bass down but even with it all the way down it would still do it just not as often. The 2018 Model 3 Long range I traded never did anything remotely like this. Anyone else experience this?
Set up an SC appointment asap, then try to figure out what it is. Might just be a loose clip or something like that.
Reason for SC appointment is just so they can see that you reported it while the car was brand new.
 
I just picked up my new 2021 M3P and I’m having issues with the sound. On the drive home I kept hearing a boomy bass rattle and assumed it was someone next to me. I later determined it was coming from my car. I was listening to a Spotify 80’s list at low volume with nothing that should have caused it. I check the setting and they were all at the center defaults. The only way I could lessen it was too turn the bass down but even with it all the way down it would still do it just not as often. The 2018 Model 3 Long range I traded never did anything remotely like this. Anyone else experience this?

Is is a really low frequency sound? Like when a car near yours is playing loud bass sounds? I was eating lunch in my '21 M3P yesterday and it happened a couple of times. I had no music on. Equalizer is set to center defaults. Each time I looked around outside the car and did not see another car.
 
I just picked up my new 2021 M3P and I’m having issues with the sound. On the drive home I kept hearing a boomy bass rattle and assumed it was someone next to me. I later determined it was coming from my car. I was listening to a Spotify 80’s list at low volume with nothing that should have caused it. I check the setting and they were all at the center defaults. The only way I could lessen it was too turn the bass down but even with it all the way down it would still do it just not as often. The 2018 Model 3 Long range I traded never did anything remotely like this. Anyone else experience this?

What happens when you turn audio off completely?
 
As I mentioned I have the exact same noise. I don't actually think it's coming from the sound system, even though it sounds very much like a loud subwoofer test tone. I think it is some kind of pump noise from the front of the car. It happens to me with the sound system on or off, and with the heat pump/ac on or off. It is most pronounced when the car is in Park for me, but sometimes also happens when driving. I've had times where the noise went off several times in a span of 2-3 minutes. It is like a 1-2 second pulse of low frequency from the front of the car.

I won't know for sure until my SC appt next week, but if I had to guess it's one the pumps that warm up the batteries or similar engaging, but something isn't tightened all the way down causing a vibration through the chassis.
 

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