EU/UK: Ongoing navigation issues

[ferdiaz]

That conforms with my experience.

That seems high. It may or may not be the Charge Planner, depending on the SOC at arrival. As I commented elsewhere, on long journeys I see low temperatures only at the first charge stop. Beyond that first charge, temperatures never drop again (much) from the elevated levels the battery attained under the previous charge. Even at freezing ambient temperatures. But if you get to such higher temperatures, that begs the question whether your cooling fans are working. (You should be able to tell during charging.)

I suspect the fans aren't the culprit, mostly because this wasn't the same behavior across all charging stops (which are a few in a double 800km legger). But I'll definitely pay close attention at whether the fans kick in during charging next time I stop at a HPC.

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[ovonrein]

mostly because this wasn't the same behavior across all charging stops

The lower the SOC on arrival, the higher the battery temp will be from the exertion of finding those last electrons to propel you along your way. That said, I have not seen a reading of 50C. Not even in 35C ambient (while charging the car with 240kW).

 

[chun]

The lower the SOC on arrival, the higher the battery temp will be from the exertion of finding those last electrons to propel you along your way. That said, I have not seen a reading of 50C. Not even in 35C ambient.

I have seen a reading of close to 70 Celsius, this December, in Germany. Around 30% SoC. (-6 or so outside). While navigating to a charger

Fans were replaced a few months ago, so they are all good. They were not spinning.

Charging was not allowed, red LED on the port.

After I deleted the route from the maps; fans kicked in and battery started cooling down rapidly, and charging was allowed.

It is entirely related to the charging planner. All it takes is 1 hard reset with the blue circle to either forget that the conditioning was turned on; or to stop it.

It’s also far from the first time I’ve had it happen. I don’t think there is any need to speculate on the cause, at least for me it’s quite clear

 

[Sly_North]

Latest update from PFF : Porsche already has a fix, but in a complete software update of the PCM taking about 6 hours per car --> total around 10M € for the company.

So they're trying to create a smaller update for older versions of the PCM software.

Porsche mobility says the issue is known, and it's being worked on, no time-frame given for when a solution will be available.

As I know people working for Porsche Software division in Cluj, Romania, I asked directly there also. The issue is not "being worked on", unless you consider budget and cost discussions as "work". The solution is known by the devs, it's to upgrade PCM software (cost is upwards of 10mil; as it's 6h of service time per car).

Porsche is trying to allocate a budget for a smaller update, that target fixes this issue. Counter point is that it will also be service time, so still significant cost in service time + budget for new update development. And that's the work done so far to fix this

It's about 6 months of development time from when they actually start developing the fix - they also need to regression test with all combination of ECU versions, all iterations of PCM hardware (similar enough, different providers of memory etc), and more.

 

[ovonrein]

After I deleted the route from the maps; fans kicked in and battery started cooling down rapidly,

Wow. 70C is unreal. But I was just going to reply to @ferdiaz that "close attention" should not be required. Preconditioning (however erroneous) stops the moment you connect the charge plug. With a battery exceeding 45C, the fans should run like a jet engine. You cannot miss the noise.

 

[chun]

Latest update from PFF : Porsche already has a fix, but in a complete software update of the PCM taking about 6 hours per car --> total around $10M for the company.

So they're trying to create a smaller update for older versions of the PCM software.

That's from me Posted it here earlier also.
I may live in swiss, but sadly not a swiss Studied with some of the engineers that are at porsche, in cluj.

 

[Sly_North]

That's from me Posted it here earlier also.
I may live in swiss, but sadly not a swiss Studied with some of the engineers that are at porsche, in cluj.

Ah... Right... Facepalm...
Not a native Swiss here either

 

[Tooney]

I have seen a reading of close to 70 Celsius, this December, in Germany. Around 30% SoC. (-6 or so outside). While navigating to a charger

Fans were replaced a few months ago, so they are all good. They were not spinning.

Charging was not allowed, red LED on the port.

After I deleted the route from the maps; fans kicked in and battery started cooling down rapidly, and charging was allowed.

It is entirely related to the charging planner. All it takes is 1 hard reset with the blue circle to either forget that the conditioning was turned on; or to stop it.

It’s also far from the first time I’ve had it happen. I don’t think there is any need to speculate on the cause, at least for me it’s quite clear

If that is true, then yes, it is recall time.
If you send a written communication to Porsche about the 70C incident, they will have a potential legal problem if they ignore your message.
It's one thing to lose navigation - another if preheat cooks the battery.

 

[Scandinavian]

That is interesting that your car will preheat to typically 35C, while my car always has preheated to 40-41C?? Normal driving temperature is 30-31C and then extra heat before charging.

My car has earlier behave like that, whether outside temperature has been up to 38C or as low as minus 15C!

Now lately though the preheating has not switched off after charging and consumes a lot of power to keep the battery temperature at 43C and consumption at 30 kWh/100km!

This issue from Porsche is a complete Dog’s breakfast!

 

[chun]

If that is true, then yes, it is recall time.
If you send a written communication to Porsche about the 70C incident, they will have a potential legal problem if they ignore your message.
It's one thing to lose navigation - another if preheat cooks the battery.

I have; and “they cannot reproduce it”, therefore clearly not an issue

Not sure how hard they tried; I’ve had it happen 4-5 times in the last 4-5 months

 

[Tooney]

I have; and “they cannot reproduce it”, therefore clearly not an issue

Not sure how hard they tried; I’ve had it happen 4-5 times in the last 4-5 months

70 C/ 158 F? Actually?

 

[chun]

70 C/ 158 F? Actually?

It wasn't 70C all the times, but i have had multiple cases of 60+, yes.
Autobahn speed + bugged preconditioning from map reset makes it happen quite repeatedly.
Sadly, there's no chance I can get a tehnician with me across the border on the autobahn

 

[Scandinavian]

You mean in the app. Does that do anything useful? I have planned my route sometimes in the app, followed by Send (to car). But while the car acknowledged receipt of my destination, it always redid the route planning from scratch. Have you witnessed it respecting your app favourites?

Normally the app’s destination will be the only thing that is transmitted to the car.

However if you plan the route in the app you have the possibility to
1. Decide the charging networks you want in the app, say Ionity.
2. You can then lock in each one of these charging stops, and they should stay, according to the app
see pictures below

This worked fine for me in the summer, but requires you to check every stop to make sure you agree with them.

The best part of it is that you avoid all the crazy stations that the planner will direct you to.

The down side is that you might have higher or lower consumption due to weather or traffic or speed travelled, but you have the desired charging network.

Try it

 

[ovonrein]

if you plan the route in the app you have the possibility to
1. Decide the charging networks you want in the app, say Ionity.
2. You can then lock in each one of these charging stops, and they should stay

Ahhhh! Thanks!! I cannot find the filter for 1. But I found your Option panel by clicking on the icon next to each stop. To see the magic slider. Will try this out.

EDIT: The warning is probably fair. The hard selection of a charging stop does prejudice the freedom of the nav to select better routes.

 

[cityhpper]

Good instructions from @Scandinavian here.

I use the app to search for the HPC's along my route (mostly Ionity for me), save the locations as favorites and then they are sent to the car. My trip starts, and in the PCM I simply navigate from one favorite (i.e. Ionity HPC) to the next.

The whole thing is a bit 2012 but it works and the car does not suggest any crazy alternatives, like visiting a HPC that you passed many kilometers ago.

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