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2021+ Model S and Model S Plaid Refresh Issues Thread
- Thread starter bmt00
- Start date
Got it back this AM.
[/QUOTE]
Good.
A ton of people are getting it right now. There's going to be a bunch of new Beta opinions.
n2mb_racing
Active Member
Good.
A ton of people are getting it right now. There's going to be a bunch of new Beta opinions.
[/QUOTE]
Which beta is going out now? My car is still in service.... 23 days later.
mjun
Member
Hello,
Just purchased a used 2021 Model S and one of the first things I noticed when sitting in a quiet area was a constant buzzing sound coming from the wireless charging area. First thing I did was schedule a service and the technician said it was perfectly normal. My old Model 3 was dead quiet compared to this car.
Is this noise normal? No fans running, no seat heaters/coolers running, and car is parked. Phone isn't even on the charging pads.
Just purchased a used 2021 Model S and one of the first things I noticed when sitting in a quiet area was a constant buzzing sound coming from the wireless charging area. First thing I did was schedule a service and the technician said it was perfectly normal. My old Model 3 was dead quiet compared to this car.
Is this noise normal? No fans running, no seat heaters/coolers running, and car is parked. Phone isn't even on the charging pads.
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n2mb_racing
Active Member
Is it actually coming from the Yoke? There was a buzz from the yoke in the early cars that was later fixed.
I don't think the charging pad buzzes in my car. There might be a tiny buzz if you put your ear really close to it with the HVAC off, but I don't think it was noticeable.
mjun
Member
I'm pretty sure it's coming from towards the charging pads.
video example: IMG_0337.MOV
In the video I get really close to the pads but I could hear this buzzing just sitting normally in my seat. Kinda driving me crazy haha.
aerodyne
2 of 3 EV's - Defect Free!
n2mb_racing
Active Member
I'll film mine for comparison. Maybe it's the fan above the charging pad? There is a fan behind those little holes that could be broken.
That is a fan you hear, it is designed to pull air from the cabin and blow it across a temperature sensor and runs constantly. This is the solution to the old issue of temperature stratification in the cabin, especially on longer drives. Back in the day the temp in the car would be fine at your face while being cold at your feet (or other types of weird temp combos). The car can only read the one temp sensor and since air isnt moving near it, it might shut down the ventilation because it is satisfied in that location, not knowing it is completely wrong somewhere else.
The fan creates a bit more of a chance to get an accurate representation of the temps in the car. Big issue in early cars especially, better later when the sensor was moved (2014?) and pretty much just ok now with the fan.
It is... a bit of a hack IMO. Better answer would be more temperature sensors so it can auto adjust the air top to bottom, but we have one sensor only still so it just guesses and gets it wrong a lot.
Propofoln
Member
Found that out when I sold my 2021 with FSD. Adds almost zero value. Just rent it. Can cancel anytime
My thought exactly. It also shows you what the secondary market values FSD at... Practically zero, zip, nada, null, etc.
It isn’t a cost cut per se. It works, and is the way most cars do it, in fact it is better than most due to the fan. You will also notice that in most cars the hvac fan runs fairly aggressively.
In an electric car they turn the fans down to the minimum for energy savings, which creates stratification. Ice has plenty of waste electrical energy so they blow the fans to keep air moving more. They also generally have one sensor, except for pure luxury cars (think Porsche, gm, ford, all use one for most vehicles to measure cabin temp.).
Mercedes and rolls use a bunch in some vehicles to have a high level of silence while maintaining comfort.
Tesla is somewhere in the middle by only having one, but using a fan to draw air across it. This increases accuracy without much of a reduction in power reserves. You could probably replace the fan with a noctua silent fan to remove the noise btw.
I do think a better solution would be sensors in more locations (they do have some in other areas, just not for passenger measurement), but recommend being focused on the issue and desired outcome. Not the method.
GroovaEV
Member
I have it as well on my 2021 refresh. It's faint, but annoying when the environment is quiet.
I believe it's the temp sensor, it has a small fan.
Here's a thread, where a M3 owner has it. The video posted in that thread sounds exactly like mine does.
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Yeah I won't be able to just ignored it, it's quite loud, I will ask service to fix it.
WilliamG
Hinge Fanatic
Proppilot
Member
try this (on the MS Refresh) you can pull down the little panel that is just above the charging pad. pull it open from the long edge closest to the screen (not the back edge close to the charger pad). In the middle of it you will see the temp sensor that has a small fan that runs all the time to pull in cabin air. Pull the plug to that unit and see if it goes away. If it does, file a ticket for service. When pulled off, the AC will not work but you are just testing so no big deal.
GroovaEV
Member
Thanks.
Yup, confirmed that's the issue here.
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