Tesla Supercharger (250kw) resulting in electrical system error.

[Arjan_]

I have had this happen 2/2 times when using the Tesla Supercharger in europe.
Looking on other platforms, facebook groups, etc; this seems to be very common in europe.

Basically following a charging session at a tesla supercharger, the car end up with the yellow "Electrical system error - service required". Locking it and going away (significant range and 15-30mins), or de-coupling the 12v battery seems to fix this 9/10 times. For some people, seems the convertor was faulty / braking down and had to had the car towed.

Most of these errors, at least in other communities I follow, seem to be immediately after tesla supercharger use.

What's your experience with tesla superchargers in EU on taycan?

I have had it a couple of times. My solution 10 to 15 times switch the car on off with the on / off button. It looks like it then restart completely (dont't know exactely when it is triggered) and then the fault is reset.

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[BjörnfromHamburg]

It all sounds like some protocol-issue between SuC and Taycan.
The issue might very well result from the protocol on the SuC side.
Why would Porsche initiate a recall over a third party charger protocol?
I charged 2 times in total at a SuC, luckily with success.
One more reason now to avoid them, as there are plenty of options in Europe.

 

[F1Ruaraidh]

I have had this happen 2/2 times when using the Tesla Supercharger in europe.
Looking on other platforms, facebook groups, etc; this seems to be very common in europe.

Basically following a charging session at a tesla supercharger, the car end up with the yellow "Electrical system error - service required". Locking it and going away (significant range and 15-30mins), or de-coupling the 12v battery seems to fix this 9/10 times. For some people, seems the convertor was faulty / braking down and had to had the car towed.

Most of these errors, at least in other communities I follow, seem to be immediately after tesla supercharger use.

What's your experience with tesla superchargers in EU on taycan?

Yep I get this every single time on SCs. I assumed that the 150kW DCDC is breaking down somewhere as it always happens at or around 60% SoC. Tesla reports an isolation error.

Yellow circle of doom results every time.

First time Porsche Silverstone deleted my profiles and timers and handed the car back. Gee thanks. Of course not the problem.

After a PITA Euro ski trip (probably 30% of charges failed completely and chargers were fine as I drove onto the charger that someone had vacated having successfully charged) so it's going back in to be actually fixed this time.

It also went into turtle mode on one 250kW charger and despite the battery being at redline and the charge rate restricted, the fans never came on. AC warm as well. Ambient only 18Deg. Never went below 42 Deg battery despite driving for a further 150 miles. After locking and charging at the Chunne, fans started working again and charged normally. Ho hum.

So many issues, let's see if Porsche Silverstone fix them this time.

So far I think
- new CCS socket needed
- new DCDC converter needed
- new RHS fan needed (makes an awful noise)
- Thorough diagnostic of the charging system as it's completely unreliable.

 

[F1Ruaraidh]

Intresting mention with the 100% . I also got the error at the same location once; don't remember if the car reached 100%. Will keep a look on it, maybe even avoid 100% charging on tesla.

Mine happens at 60% SOC without fail

 

[F1Ruaraidh]

by button do you mean the one on the car in the charging port?

that would eliminate the Tesla app theory.

I was going to test it next week as my car’s going in for the brake recall and I thought could try and break it before it goes in

I had failures with stopping via the app and mid-charge and stopping via the button.

Porsche it seems are just incapable of using the most reliable chargers in the world. Spectacular incompetence.

 

[F1Ruaraidh]

It all sounds like some protocol-issue between SuC and Taycan.
The issue might very well result from the protocol on the SuC side.
Why would Porsche initiate a recall over a third party charger protocol?
I charged 2 times in total at a SuC, luckily with success.
One more reason now to avoid them, as there are plenty of options in Europe.

Because they are common and ubiquitous and they just work. Except for Porsche.

I'd find that embarrassing if I were a Porsche engineer.

 

[BjörnfromHamburg]

Because they are common and ubiquitous and they just work. Except for Porsche.

I'd find that embarrassing if I were a Porsche engineer.

I agree on the one hand. On the other hand it is the bigger picture.
At some point EV-manufacturers should agree on mutual common standards. In charging communications.
That settled, and one could easily hold Porsche accountable for not holding those standards.

 

[Scandinavian]

I have used Tesla Superchargers successfully in several countries since 2020. Never ever have had any troubles starting, charging or stopping the charge. But I did not use it in 2024 with my Taycan. I think I have used them 30+ times though. And in one location I absolutely rely on the Tesla SuC and could not make that trip else. There are no HPC units within 100 km yet.

So these reported troubles concern me! I would not be able to reach our marina if this is a common problem.

Could this have been introduced by some new updates lately?

 

[Scandinavian]

I agree on the one hand. On the other hand it is the bigger picture.
At some point EV-manufacturers should agree on mutual common standards. In charging communications.
That settled, and one could easily hold Porsche accountable for not holding those standards.

I would have thought that the CCS 2 standard with test procedures would guarantee this?

 

[BjörnfromHamburg]

I would have thought that the CCS 2 standard with test procedures would guarantee this?

One would expect that, yes!
I think though, there is no legal liability one could claim.
Thus it is easy for each side to blame the other and leaving us like a fish lying dry.

 

[F1Ruaraidh]

I agree on the one hand. On the other hand it is the bigger picture.
At some point EV-manufacturers should agree on mutual common standards. In charging communications.
That settled, and one could easily hold Porsche accountable for not holding those standards.

Superchargers are CCS.....

 

[BjörnfromHamburg]

Yes, I know.
But seemingly protocols do not necessarily work in every direction.
Just WHO is really in charge (charger/ car) making it work does not seem to be regulated in legal ways.

 

[F1Ruaraidh]

I have used Tesla Superchargers successfully in several countries since 2020. Never ever have had any troubles starting, charging or stopping the charge. But I did not use it in 2024 with my Taycan. I think I have used them 30+ times though. And in one location I absolutely rely on the Tesla SuC and could not make that trip else. There are no HPC units within 100 km yet.

So these reported troubles concern me! I would not be able to reach our marina if this is a common problem.

Could this have been introduced by some new updates lately?

Don't know. All I can tell you is that *all* my attempts have resulted in the yellow tube of death (2021 TS CT).

 

[Scandinavian]

One would expect that, yes!
I think though, there is no legal liability one could claim.
Thus it is easy for each side to blame the other and leaving us like a fish lying dry.

No there is no legal way, but I still think the different ompanies do inter operability testing quite a lot. I know that they did a lot of this in the beginning.

And as I stated, I have successfully charged in most Western European countries at Tesla SuC. Not as fast as Ionity, but normally an abundance of chargers available, so no queuing etc.

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