Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.

Engine whine is extra loud/sharp since at leas the past week


Nov 29, 2018
West Coast
I've noticed that when my car is regening it becomes much sharper and higher pitched for a second compared to before. It's similar in sound to how the regen sounds when you are driving to a supercahrger, just not quite as much,

Is this happening to anyone else?


Active Member
Apr 8, 2018
Kitchener, Ontario
I believe it’s the stator.
Colder weather is upon us. That means your model 3 will automatically heat up the battery when it feels it needs it.
To do this, it heats the stator, which heats battery.
That produces a whining sound. It will come and go depending on the temp and status of your batteries.

I’m not sure what makes it whine, but based on everything I’ve read and heard, this is your source.
  • Informative
Reactions: mchawk and Drizzle


Efficiency Obsessed Member
Oct 22, 2018
San Diego
Also I have noticed it tends to be louder when you are at a higher state of charge (when you are showing regen dots, specifically). So if you've been charging to a higher level and it's colder, probably related.

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.