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Yellow Electrical System Error - Service Required

whitex

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I’m more than a little uneasy about the entire process so far. I remember that TSB and wonder what has changed to allow dealers to just replace the e-box.
I think it's all case by case basis. Dealer takes log data, they send it to Germany, they approve parts replacement, then send parts. Then if it doesn't fix the problem, they repeat the process.
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DerekS

DerekS

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Pardon my language, I realize this is a family forum but this is becoming an FING NIGHTMARE.

I haven’t had my car since 10/20.


I have wasted weeks and weeks just getting them to see the problem first-hand, and then more waiting for parts and even more waiting to get the work done.

So what happened once the e-box was replaced?

They were prepared to give me the car last Friday. I noted that the SoC hadn’t changed, and therefore things were untested.

When I pointed that out and asked for them to note on my invoice that it left them untested, they changed their mind and decided they did want to test it after all, but it would have to be Monday (today.)

I watched them take it to a charger - the same one we originally replicated the fault on - and it only got up to 66kW. Not good, but not necessarily conclusive since we all know how sketchy EA is.

After getting up to around 33% the car starts heading back to the dealership…and stops. And stays there for a very long time.

I ping my advisor to ask what is up, and he says the car died on the road and is being flatbedded back to the shop. Where once again it sits, and once again I wait.
 
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CrazyINP

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Oh man… that is very discouraging. Pretty much it much choices of a decent shop in the area that knows how to deal with EV Porsches… let’s hope that now with few more Porsche EVs dealers step up their game and train their service people…
 
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DerekS

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Oh man… that is very discouraging. Pretty much it much choices of a decent shop in the area that knows how to deal with EV Porsches… let’s hope that now with few more Porsche EVs dealers step up their game and train their service people…
Maybe the shop in Redwood City is good. They do have a 350kW charger on site at least.
Los Gatos has zero fast chargers, and Stevens Creek only 150kW. Not enough to trigger the fault in my case.
 

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I suspected that trying to fix a yellow electrical warning/charging problem by changing the e-box was sketchy. I hope they resolve it soon.
 


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Seems like buying Porsche in the US isn't great because it takes forever to get the parts and nothing is in stock.
I'd say that's an importer level failure - there should be a central warehouse that stocks items and proactively tops up the inventory depending on usage rates.
Currently it seems like every time there's an electrical fault they have to wait for parts to arrive from Germany by boat, which is ridiculous.

It's a very different experience in the EU, most parts are available within a week.
 

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I was told parts were “local”, for the inverter replacement on mine. I guess I’ll find out how true that really is this week.
 

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Pardon my language, I realize this is a family forum but this is becoming an FING NIGHTMARE.

I haven’t had my car since 10/20.


I have wasted weeks and weeks just getting them to see the problem first-hand, and then more waiting for parts and even more waiting to get the work done.

So what happened once the e-box was replaced?

They were prepared to give me the car last Friday. I noted that the SoC hadn’t changed, and therefore things were untested.

When I pointed that out and asked for them to note on my invoice that it left them untested, they changed their mind and decided they did want to test it after all, but it would have to be Monday (today.)

I watched them take it to a charger - the same one we originally replicated the fault on - and it only got up to 66kW. Not good, but not necessarily conclusive since we all know how sketchy EA is.

After getting up to around 33% the car starts heading back to the dealership…and stops. And stays there for a very long time.

I ping my advisor to ask what is up, and he says the car died on the road and is being flatbedded back to the shop. Where once again it sits, and once again I wait.

I have had it with all of this.

I don’t know if I can ever trust this car again, or have confidence that the repair was done to spec.

I almost bought a new Taycan instead of enduring all of this, and now I wish I had.
sorry to hear about all your problems. No car has ever beat me up personally as much as both my taycans. Throwing in the towel myself.
 
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Maybe the shop in Redwood City is good. They do have a 350kW charger on site at least.
Los Gatos has zero fast chargers, and Stevens Creek only 150kW. Not enough to trigger the fault in my case.
Pretty scary stuff to hear as a new owner. I hope everything is resolved (I'd also say promptly, but that's off the table). I'm also in the S Bay Area, and it's disappointing to hear that there are no really good service options for us.
 
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DerekS

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Pretty scary stuff to hear as a new owner. I hope everything is resolved (I'd also say promptly, but that's off the table). I'm also in the S Bay Area, and it's disappointing to hear that there are no really good service options for us.
Well if it helps any, I’ve had 2 Taycans and put 50k miles between them. Aside from recalls, I haven’t had anything major until now.
 
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SoccerMan94043

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Well if it helps any, I’ve had 2 Taycans and put 50k miles between them. Aside from recalls, I haven’t had anything major until now.
As I new almost owner, I'm currious about your experience with both Los Gatos and Stevens Creek. I guess not so good now. Is Redwood City the only option?
 
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DerekS

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As I new almost owner, I'm currious about your experience with both Los Gatos and Stevens Creek. I guess not so good now. Is Redwood City the only option?
I can’t recommend either shop for Taycan repairs. Los Gatos doesn’t have a high speed charger on site. Stevens Creek does, but not full speed.

I haven’t used RWC at all yet, but I’ve confirmed they do have the good high quality Porsche high speed charger on site. So that alone is a plus; they can diagnose charging problems on site and can test their work without YOLOing it.
 
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DerekS

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Got an update - they believe there was a bubble in the coolant loop, which caused the car to go into turtle mode.

They are testing again tomorrow and I will finally get it back.
 
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DerekS

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As I new almost owner, I'm currious about your experience with both Los Gatos and Stevens Creek. I guess not so good now. Is Redwood City the only option?
TBH I am second-guessing myself at this point.
Maybe I've been too hard on both shops.

On the other hand...I've been chasing this problem since 10/20, and gone above and beyond to provide helpful troubleshooting info. I dunno.
 

whitex

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TBH I am second-guessing myself at this point.
Maybe I've been too hard on both shops.

On the other hand...I've been chasing this problem since 10/20, and gone above and beyond to provide helpful troubleshooting info. I dunno.
Often the shops have their hands tied as far as what they can or cannot do. My heat died on my Taycan a little more than a month ago. I scanned the car, got 3 errors, HV heater and 2 valve servos. There was no loners for a couple of weeks, so I kept the car as I could drive it without heat, with a manual defogging if needed via a microfiber cloth on a stick. Once they got it in, they ran diags, ordered a new HV heater, replaced it. Still no heat, turns out the two valve servo motors need replacing too, so another round of ordering. I could be annoyed, as this made the repair process longer, but I talked with the tech and the thing is, they have to follow the process for warranty repairs. In this case the process was to clear all errors, which resulted in only HV heater error coming back, so they replaced the heater. Only once the heater was back in action, did the car try to operate the bypass value and another HVAC valve, which returned errors again. So I could be annoyed, that I knew from day one what the issue was, but to be perfectly honest I only had a strong suspicion which turned out to be correct. The shop has to follow Porsche process if they want to get paid. And if it was on my own dime (not Porsche paid warranty), would I authorize purchase of all parts up front not knowing whether they will in fact be needed later? I'm not sure (I don't know the cost, which would have been a major decision factor). Oh, I also made a mistake by tying the heat repair with ASA2 recall, because Porsche ETA for the part was only 1 week out, but still not there 2 weeks later, so this ended up in an unnecessary delay (they wanted to wait for all parts before working on the car). I've since decoupled the two services, will come back whenever the recalled seat cushion makes it.

So bottom line is I think my dealer does the best they can within the framework set by Porsche. It may be possible your dealer is in similar situation. Could Porsche make it better, definitely. For example, they could support running remote diagnostics, or a way for customer to trigger a log scan/freeze when a problem is happening, or at least no-appointment-drop-in for a quick car scan to catch an error which happens intermittently.

PS> Talking to the service people, usually when heat dies in a Taycan it's a quick HV heater swap. My Taycan decided to be an exception, replacement of the broken valve servos requires a complete disassembly of the dash, which takes more than a day to take apart, then more than a day to put back together!
Porsche Taycan Yellow Electrical System Error - Service Required 1764742170694-jc


I sure hope when they put it back together this week (parts finally here), there won't be another valve somewhere under there which will require it to be taken apart again.
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