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?
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Burning wires/plugs in Tesla Model 3
- Thread starter Bobbyf2824
- Start date
M109Rider
Active Member
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.
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
Hinge Fanatic
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.
BluestarE3
Active Member
Rodents chewing through insulation which then causes an electrical short?
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.
Interesting. So an MCU replacement was done for another 2.5? I thought they would have ran out of that stock.
AlanSubie4Life
Efficiency Obsessed Member
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.
AlanSubie4Life
Efficiency Obsessed Member
Let us know what they find. Hopefully it's not rodent damage.
https://www.washingtonpost.com/science/2020/02/13/rats-will-devour-your-car/
I don't thinks its rodent damage because the car is garage kept and I never seen any signs of rodent in my garage before, but who knows the whole thing has just really freaked me out.
AlanSubie4Life
Efficiency Obsessed Member
It was probably a refurb unit that was removed from another vehicle, on account of it melting the plugs.
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!
Way not to go (again) Tesla!
I was just looking at the old service invoice before all this burning crap started happening. They replaced Battery - 12v (129182-00-B) and MCU (1098058-S0-K). Not sure if you can tell if they are Refurbished by the part #It was probably a refurb unit that was removed from another vehicle, on account of it melting the plugs.
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