2018 Model X Won’t Charge

[GaryBowler]

I pulled up to a Tesla Supercharger and the car didn’t charge - the dashboard flashed duration times up to 7 hours to charge. I switched charging stations - same result. I rebooted several times - same result. (See attached pic, if possible)

Drive it to a Tesla Service Center in Westchester, NY, and have not heard back. The Tesla app still shows the state of charge that hadn’t changed.

Any thoughts?
Either way, thanks for reading this!

 

[GtiMart]

39/48A, 204V... you are not on a supercharger, you are on a level 2 (AC) charger. Yes, a full charge will take many hours.

 

[Operator64]

As GtiMart stated

 

[GtiMart]

Superchargers look like this:

Urban superchargers look like this and deliver a bit less power:

You don't seem plugged to any of those two options. You seem to be on a home or destination charger, Tesla or other.

 

[GaryBowler]

39/48A, 204V... you are not on a supercharger, you are on a level 2 (AC) charger. Yes, a full charge will take many hours.

I appreciate your response! But I was at a typical supercharger that I’ve used for years. The numbers on the dashboard were not accurate.

 

[Operator64]

Well sir you set the stage with an explanation and then a photo for verification of the issue, please Explain where the photo came from

 

[Rice&Curry]

Just to clarify my understanding, how long have you owned the car? Looks like there is some basic misunderstanding on the current/voltage drawn from different types of charging infrastructure for Tesla.

 

[GaryBowler]

Well sir you set the stage with an explanation and then a photo for verification of the issue, please Explain where the photo came from

Sure! The photo of my dashboard was taken at the Tarrytown Supercharger in New York State.

 

[everydaychris]

the photo looks like it's at a destination charger

Destination Charging | Tesla

Park for a few hours or stay overnight at Tesla Destination Charging sites.

www.tesla.com

Are you sure you were at a supercharger? If anything, you'll see a notification like "charge limit reduced etc" take a photo of that!

 

[Operator64]

Ok, the photo shows you are charging on AC current at 204 volts maximum 48 amps charging at 39/48 at the time of the photo you were charging for approximately 1 minute so it had not reached the 48 volt max yet

 

[GaryBowler]

Thanks! There is no doubt of the type of charger I was at. I am totally familiar with all the different types of chargers.

The information in the dashboard is not accurate, clearly linked to the problem of not charging.

Also, I’ve driven since March 2018, all along the east coast from Maine to South Carolina. So I’m aware of charging options. But this is disturbing as my Model X seemed to be randomly riddled with major problems. In September 2022, the wiring harness needed replacing.

Again, I appreciate your response! Thanks for taking the time to do so.

 

[Operator64]

Thanks! There is no doubt of the type of charger I was at. I am totally familiar with all the different types of chargers.

The information in the dashboard is not accurate, clearly linked to the problem of not charging.

Also, I’ve driven since March 2018, all along the east coast from Maine to South Carolina. So I’m aware of charging options. But this is disturbing as my Model X seemed to be randomly riddled with major problems. In September 2022, the wiring harness needed replacing.

Again, I appreciate your response! Thanks for taking the time to do so.

Sorry for the troubles, so we have at least confirmed that the dash wash showing improper information for the charging you were doing which you already knew, hopefully they will get it figured out and get it fixed for you.

 

[Rice&Curry]

Well now I am completely at a loss as to why a Tesla SC would charge at L2 current/voltage unless it is sensing so issue with the onboard charger in the car and or BMS ( battery management sw). Looks like this problem is now beyond my pay grade.

 

[GaryBowler]

Well now I am completely at a loss as to why a Tesla SC would charge at L2 current/voltage unless it is sensing so issue with the onboard charger in the car and or BMS ( battery management sw). Looks like this problem is now beyond my pay grade.

 

[ngng]

Since we've ruled out the most common misunderstandings I would file a service ticket and note when you plugged in and where. Telsa should be able to pull up all the data once you've pointed them to a point in time.

Quick question, have you tried a hard reset and then charging again? If you 're able to reproduce the issue it should be straight forward to fix. It's the transient issues that are harder to fix.

 

[Operator64]

Since we've ruled out the most common misunderstandings I would file a service ticket and note when you plugged in and where. Telsa should be able to pull up all the data once you've pointed them to a point in time.

Quick question, have you tried a hard reset and then charging again? If you 're able to reproduce the issue it should be straight forward to fix. It's the transient issues that are harder to fix.

As per the OP’s post it’s at the service center

 

[brainhouston]

this brings an interesting question..
is supercharger actually capable of delivering AC power in case it deems DC charging is not possible?
sort of like not to let a broken car stranded without any power...

 

[GaryBowler]

Since we've ruled out the most common misunderstandings I would file a service ticket and note when you plugged in and where. Telsa should be able to pull up all the data once you've pointed them to a point in time.

Quick question, have you tried a hard reset and then charging again? If you 're able to reproduce the issue it should be straight forward to fix. It's the transient issues that are harder to fix.

Thanks, sir! Appreciate your response. Yes, I tried a hard reset and attempted to charge again, twice.

I drove it to the Tesla Service Center in White Plains, NY, and when they could not get the car to charge, I left it there.

 

[ShawnA]

Hi Gary,

Do you know if your car is MCU1 or MCU2 ???

The first week of March was the cut over and I was lucky
that my March 2018 Model X had an MCU2.

If you have MCU1 - This may be an early indication that the EMMC
memory is starting to fail.
If it is MCU1 and you plan on keeping the car for a while,
most here would recommend upgrading to MCU2.

Good luck,

Shawn

 

[GaryBowler]

Hi Gary,

Do you know if your car is MCU1 or MCU2 ???

The first week of March was the cut over and I was lucky
that my March 2018 Model X had an MCU2.

If you have MCU1 - This may be an early indication that the EMMC
memory is starting to fail.
If it is MCU1 and you plan on keeping the car for a while,
most here would recommend upgrading to MCU2.

Good luck,

Shawn

Hey Shawn!

Thanks for your suggestions! Yes, I upgraded my MCU a couple of years ago. I did so because I plan on keeping the car for a very long time, as you suggested would be the best option for long-term ownership.

Much appreciated!