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Model 3 heat pump noise

SigNC

Active Member
Aug 23, 2017
1,583
1,489
NC
Read the above everyone, remember a "Heatpump" is an AC system that transfers heat into the cabin instead of out of the cabin by changing the flow of refrigerant.
One point that might have been brought up already, there is waste heat from the Motors/Inverter and Battery that the Heatpump will use to assist in transferring heat to the cabin instead of just using the outside air.

This is the key and is a HUGE advantage, especially after supercharging in the cold.
 
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Tristdunn

New Member
Jan 25, 2021
2
0
Las Vegas
I took delivery of my 2021 model 3 on December 26. I have significant noise when my climate control is on. It sounds like deep bass thumping and was told by Tesla service tech it has to do with new heat pump and octovalve. I actually thought it was coming from the subwoofer when I first got the car and thought maybe it was something to do with needing an update. It increases in regularity as outside and inside temp changes. Sometimes it’s so regular it’s like a heart beat. It’s so bad I am starting to regret my purchase somewhat. I had a Chevy bolt previously and actually miss a lot of the features it had like 360 camera view and satellite radio (I am frequently outside of wireless service areas and that’s the beauty of satellite). For a car that cost me over 20k more I just wish I had less issues but hey.. 1st world problems.
 

MarsOrBust

Member
Sep 25, 2020
458
325
Kepler-22b
I took delivery of my 2021 model 3 on December 26. I have significant noise when my climate control is on. It sounds like deep bass thumping and was told by Tesla service tech it has to do with new heat pump and octovalve. I actually thought it was coming from the subwoofer when I first got the car and thought maybe it was something to do with needing an update. It increases in regularity as outside and inside temp changes. Sometimes it’s so regular it’s like a heart beat. It’s so bad I am starting to regret my purchase somewhat. I had a Chevy bolt previously and actually miss a lot of the features it had like 360 camera view and satellite radio (I am frequently outside of wireless service areas and that’s the beauty of satellite). For a car that cost me over 20k more I just wish I had less issues but hey.. 1st world problems.
That in no way sounds normal. I have a 2021 M3P with no such noise. I would challenge that. Tell then you want to demo a 2021 model of theirs.

The Model 3 Heat Pump I believe has an acoustic wrap that the original Model Y's did not have.
 

XPsionic

Member
Jan 20, 2021
87
114
los angeles
Just got a 2021 SR+. Living in SoCal, heat pump is very quiet in normal driving, but sometimes can be very loud during supercharging, guess it's maintaining battery temps.
 

Tarpan

Member
Jan 2, 2021
115
121
Vancouver, BC
I don't have a great pre-heat pump comparison point but this hvac seems quite loud outside the car.
I notice it a bit sometimes when I'm driving, but really notice it when someone else is driving the car and pulls into the garage.

I don't think there is anything wrong per se, it seems to be functioning well enough.

Anyone else notice this? Anyone have any comparisons with the noise level of the new vs old?

Note to mod: *thank you for moving this...not sure why this thread didn't come up when i searched!*
 
Last edited:

kadify

Member
Nov 19, 2020
272
132
colorado
I agree the heat pump seems very loud. I never realized noticed until I got a loaner without the heat pump and realized how quiet it was when driving compared to when my car is driving you definitely hear it. I kind of wish it wasn't so loud. It's neat driving and making no noise but that isn't possible with the HVAC on.
 

Tristdunn

New Member
Jan 25, 2021
2
0
Las Vegas
That in no way sounds normal. I have a 2021 M3P with no such noise. I would challenge that. Tell then you want to demo a 2021 model of theirs.

The Model 3 Heat Pump I believe has an acoustic wrap that the original Model Y's did not have.
Thank you very much for that additional data point. I did request to try to reproduce the noise on another 21 M3 and she offered up her personal vehicle. I was able to get it to make the same noise on initial startup at least but didn’t stay in it long enough to confirm if it was persistent like it is in mine( felt bad sitting with her in her car for a while due to covid). It’s dependent on outside temp and that day even mine wasn’t as bad. Of course the next day it was back to almost heartbeat frequency. Go figure.
 

Amped412

Member
Mar 2, 2021
151
136
St. Louis, MO
I just got back from a road trip in 90 degree weather in my 2021 SR+ and man the heat pump was really loud. Like a very loud buzzing noise. While driving, it only buzzed really loud for the first few minutes but it buzzed the whole time while supercharging. Just wanted to add my experience to the thread. Not sure if other people have heard this loud buzzing during hot weather.
 

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