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Noise when sitting in car

Tigermad

Member
Mar 1, 2021
237
44
UK
For the past month I sit in my car for lunch and watch the TV on the screen. Even though it has not been driven for around 5 hours, when I get in, the car makes a constant fairly loud whirring. This is also there when climate is turned off. It remains there for the full hour while in the car. This only happens when I get in the car.
Its really annoying because you can hear it over the programme I’m watching.
I know it’s normal for the fans to keep running when you have finished driving but this is many hours after driving.
Does anyone know what it may be and is it normal on an MC Tesla 3 2021?

 
Last edited:
Jan 11, 2021
83
118
Bristol
Sounds quite a deep, bassy noise. Not something that I’ve noticed in mine.

Have you tried a reset? Have you tried it with all air con and fans totally off? Have you tried camp mode?

If you try any of the suggestions, it may give a clue as to the cause.
 
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Durzel

Active Member
Jul 17, 2019
3,468
2,427
Bath, UK
Haven't got the Inception trailer on a freeze frame, have you?

(sorry, not very helpful)

All you can really do is book a service request.. should be a fairly easy thing to demo, and possibly also see another car while you're there (assuming mobile service can't do it)
 

Adopado

Active Member
Aug 19, 2019
4,177
3,142
Scotland
For the past month I sit in my car for lunch and watch the TV on the screen. Even though it has not been driven for around 5 hours, when I get in, the car makes a constant fairly loud whirring. This is also there when climate is turned off. It remains there for the full hour while in the car. This only happens when I get in the car.
Its really annoying because you can hear it over the programme I’m watching.
I know it’s normal for the fans to keep running when you have finished driving but this is many hours after driving.
Does anyone know what it may be and is it normal on an MC Tesla 3 2021?


I don't have a heat pump car but I would say that's the kind of noise that could potentially come from a heat pump compressor. I would speculate that it may be that the physical isolation is not in position correctly to damp the sound (rubber mountings and/or noise deadening cover). It could be running in some circumstances even without HVAC as it is also used to warm or cool the battery pack. Worth checking out with the Service Centre I would say.
 
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Tigermad

Member
Mar 1, 2021
237
44
UK
Thanks everyone. I am wondering if it only does it in warm weather. Will try first thing in the morning before I drive off. If it still does it I will book an appointment.
 

Tigermad

Member
Mar 1, 2021
237
44
UK
Sounds quite a deep, bassy noise. Not something that I’ve noticed in mine.

Have you tried a reset? Have you tried it with all air con and fans totally off? Have you tried camp mode?

If you try any of the suggestions, it may give a clue as to the cause.
Thanks for the reply. I have tried all those. I can’t tell in camp mode because the aircon is on so hard to tell.
 
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a1psx

Member
Mar 24, 2021
8
4
Milton Keynes, UK
I think it's needed for cooling/heating the batteries as well as cabin air, so since the car is on it'll be trying to keep the batteries at the correct temp. Apparently there is a fix in the works to make it less noisy.
 

Cloggie

Member
Nov 18, 2020
184
98
West Midlands, UK
My 2021 M3 LR with heatpump never sounds like that at all, cold or hot weather. When preheating it makes more noise, but never such a bass like hum.
Can I respectfully suggest a visit to the S.C. to have it checked out? If it is considered normal (within spec....) then no harm done. Better safe than sorry
 

Tigermad

Member
Mar 1, 2021
237
44
UK
My 2021 M3 LR with heatpump never sounds like that at all, cold or hot weather. When preheating it makes more noise, but never such a bass like hum.
Can I respectfully suggest a visit to the S.C. to have it checked out? If it is considered normal (within spec....) then no harm done. Better safe than sorry
Thanks. I’ve booked the car in for a service but it’s not for 10 days. Let’s see what they say.
 
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JS77

Member
Nov 24, 2019
141
88
England
I noticed that exact same noise when I collected my car 3 weeks ago, but since I'd put in a Supercharger as my destination on the navigation, I assumed it was associated with the pre-conditioning of the battery. However, it continued to make it even after I left the supercharger and lasted for about 20 mins.

I've not heard it again, but I also haven't preconditioned the battery at any point since either...
 
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Adopado

Active Member
Aug 19, 2019
4,177
3,142
Scotland
I noticed that exact same noise when I collected my car 3 weeks ago, but since I'd put in a Supercharger as my destination on the navigation, I assumed it was associated with the pre-conditioning of the battery. However, it continued to make it even after I left the supercharger and lasted for about 20 mins.

I've not heard it again, but I also haven't preconditioned the battery at any point since either...

That certainly reinforces the notion that it is the heat pump or recirculating pump related to heating/cooling the battery pack.
 

Nick77

Deep Blue Model 3 LR (2021 MIC)
Mar 15, 2020
393
127
Burton-on-Trent
Appointment not for over a month now because I need a courtesy car. :-(
Same here. Appointment made on 26th June, but don't have one until 9th August. All because of the courtesy car. And they'll probably have the work done in a couple of hours too. Very annoying.
 

JS77

Member
Nov 24, 2019
141
88
England
Not related to the OP, but for at least 2 hours *after* a short journey (5 miles approx) my M3 is still making this noise (video attached)

is this the heat pump? And if so, what is it doing 2-3 hours after the journey? Surely the power needed to run it is wasting more energy than its saving?


Ps. I've been washing the car today (unsuccessfully I might add...) but the fan/heat pump noise started again in the middle of the wash (it had stopped when I began washing the car).
 

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