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Burning wires/plugs in Tesla Model 3

Bobbyf2824

Member
Feb 14, 2020
18
18
Florida
I am wondering if anybody else has experienced anything like this in their 2019 Model 3. Tesla replaced the MCU due to Constant crashes. Car worked great for a week and then the computer started crashing again and with the added bonus of a burning smell. I took it into Tesla and they told me that there were no errors and that the car was safe to take home without ever looking at the car just remote diagnostics from inside the service center. The burning smell continued for another two weeks With crashers. Tesla remote advise said there is nothing they can do because the car has no errors and to wait for something to happen. I did not want to take any chances because I have an infant, so I started looking for Where the burning smell was coming from and Found melted wires and melted plugs coming from the new MCU. Does Tesla really not get concern over burning Smells?
 

M109Rider

Active Member
Apr 8, 2018
1,554
1,605
Kitchener, Ontario
That’s the first I’ve heard of this problem.
Sounds like a faulty unit or connection.
Do you have pictures of the melted wires you saw ?
Is it now in for service ?

Tesla certainly would be concerned about that, but some some reason, they didn’t feel it was valid.
I’m sure once you take it in it will be addressed.
Would love to see the melted wires. Pic’s.
 

WilliamG

Active Member
Apr 20, 2019
3,278
4,059
Seattle, WA
That’s the first I’ve heard of this problem.
Sounds like a faulty unit or connection.
Do you have pictures of the melted wires you saw ?
Is it now in for service ?

Tesla certainly would be concerned about that, but some some reason, they didn’t feel it was valid.
I’m sure once you take it in it will be addressed.
Would love to see the melted wires. Pic’s.

Seems to be a few new members with one post detailing really bad issues. I’m not doubting it but... pics or it didn’t happen.
 

Bobbyf2824

Member
Feb 14, 2020
18
18
Florida
here are some photos that I took. I think they may have thought the heater was on or something stupid like that.
 

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Bobbyf2824

Member
Feb 14, 2020
18
18
Florida
Sounds like you have some resistance issue somewhere... odd that it wouldn't show up on a diagnostic.
The whole things seems crazy to me too. You would think something like this would show in the diag logs, but I am not sure what they actually did remotely or how detailed those logs are.
 

AlanSubie4Life

Efficiency Obsessed Member
Oct 22, 2018
10,106
12,168
San Diego
here are some photos that I took. I think they may have thought the heater was on or something stupid like that.

Have you tried sending these pictures to Tesla? Or if that is not possible, telling them that you found a melted plug? This seems fairly unsafe. I would think they'd want to get this taken care of. Sometimes you have to beat people up with the facts and evidence before they will take you seriously. Remember they have tons of people coming in complaining about how their AC stinks or complaining about rattles or other inconsequential stuff, so it's easy for serious stuff to get lost in the shuffle.
 
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Bobbyf2824

Member
Feb 14, 2020
18
18
Florida
Have you tried sending these pictures to Tesla? Or if that is not possible, telling them that you found a melted plug? This seems fairly unsafe. I would think they'd want to get this taken care of. Sometimes you have to beat people up with the facts and evidence before they will take you seriously. Remember they have tons of people coming in complaining about how their AC stinks or complaining about rattles or other inconsequential stuff, so it's easy for serious stuff to get lost in the shuffle.
Yes it's back in service now
 
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p1l0t3

Member
Mar 5, 2016
120
39
Quebec, QC, Canada
Sometimes I believe I smell some burning in my car but it is too episodic to detect/find the source.
I do believe it happens after a long run with windshield heating (in quebec right now you cannot do without it).
 

TLLMRRJ

Active Member
Dec 19, 2019
1,937
1,917
Houston
Insanely bad customer service. Any complaints of a burning smell in an electric car should be handled with the same attention and caution as someone complaining of a natural gas smell in a building. Unbelievable, and borderline criminal, that they couldn’t even be bothered to look around for any problems and at least confirm the smell.

Way not to go (again) Tesla!
 

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