EU/UK: Ongoing navigation issues

[E500]

My car had its 6 years service last week. And a lot of reprogramming of 12 volt system plus navigation update and PCM update to 3885. Of course the car had no records of any faults despite just having had a disconnected 12 volt battery and some other issues. In a recall I also received my 6th heater system installed!

As for others the initial test show that turn by turn instructions are working for now and charge planner seem to be active and working.

If you look at the screen shot below you can see the absolute clutter of charger information, while navigating to the west coast of France. No wonder it is suspected that the PCM will run out of memory, by displaying all these charger details. I can understand that information for possible charging stops along the route can be of value. But to display chargers way back at 180 degrees of intended travel seems unnecessary. I did not scroll around the map too much to check if the same information would be displayed for all chargers in all of Europe. My filter is set to only use chargers > 150 kW. Mostorps the information is also way out of the range in my car, indicated by the thin blue line.

Let’s see how long time it takes before the navigation crashes again.

If the hypothesis is correct, that the constant crashes are out of memory problems caused by caching HPCs for dynamic charge planning, it seems implausible that the simple fix isn’t to simply exclude anything further than <current range of car + fudge factor> kilometres off the planned route.

Surely there’s more to it than this.

(Un?)related, my car has an OTA nav update pending, I discovered last night after a week away. Might go and install that now…

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[Charles2023]

Just succumbed to the dreaded navigation constantly re loading every 5 minutes and then failing (ie just say in loading mode and nothing ) while using the navigation. Live in the UK with a 2021 RWD. Started 2 weeks ago for no apparent reason. Let’s see what they say at Porsche west London. Wish me luck.

 

[E500]

Just succumbed to the dreaded navigation constantly re loading every 5 minutes and then failing (ie just say in loading mode and nothing ) while using the navigation. Live in the UK with a 2021 RWD. Started 2 weeks ago for no apparent reason. Let’s see what they say at Porsche west London. Wish me luck.

Good luck.

I live just outside London and it’s generally fine when I’m pottering around the Home Counties. But drive on the M25, or in London, and it’s crashing constantly.

 

[Charles2023]

Good luck.

I live just outside London and it’s generally fine when I’m pottering around the Home Counties. But drive on the M25, or in London, and it’s crashing constantly.

If it was a London thing it would,be fine because don’t need it there.

i was actually in Bristol and the M4 and totally doesn’t work Anywhere.

 

[ovonrein]

I was down in Bath (outside Bristol) a few months ago - no problem at all. Charger density out there is VERY low (Bath does not have one HPC) so that it is hard to see the PCM overloading. Ditto around M25 - no problems. Nowhere near the density of chargers you find around Benelux.

 

[Jasper4S]

My car is back at the dealership. The ongoing navigation issues are related to the newly 3G connection I have (instead of LTE). They’ll fix that and order a brand-new PCM unit to resolve the issue.

Since we all suspect it’s a software problem, but a new PCM fixes it, I believe the Taycan 1.2 PCM has hardware improvements or maybe different parts of suppliers. J1.2 doesn’t have this problem, and a new unit appears to be Porsche’s solution. What are your thoughts?

 

[chun]

My car is back at the dealership. The ongoing navigation issues are related to the newly 3G connection I have (instead of LTE). They’ll fix that and order a brand-new PCM unit to resolve the issue.

Since we all suspect it’s a software problem, but a new PCM fixes it, I believe the Taycan 1.2 PCM has hardware improvements or maybe different parts of suppliers. J1.2 doesn’t have this problem, and a new unit appears to be Porsche’s solution. What are your thoughts?

J1.2 doesn’t have that problem because it has different software
A new PCM doesn’t fix it; there have been people getting new PCM both here and on pff forum, and the issue comes back after a few weeks.
You can achieve same results by resetting your car to default settings.

The part number of the pcm changes every year, but the components are the same, different providers of memory, etc; but quantity/quality is the same.
MY26 supposedly has an extra chip for Dolby atmos.

 

[Brombaer1971]

The question is what is the difference. As far as we know the J1.2 platform is allowed to run Software revision 4360 while the J1.1 platform runs 3882 or 3885. Even if you get a J1.2 PCM it is not known what the hardware difference is nor if they install 4360 onto it.

Crossing my fingers for you that you get new hardware spec together with 4360 software. Looking forward to your after service posting.

 

[Jasper4S]

It will be backordered, so I expect it to be delivered in February. The car is in today because they need to show Porsche AG my Taycan is up to date and ordering a new PCM is a warranty thing. But hey, I got a 922.2 cab loaner. So May or June delivery is fine too

 

[Dabz]

I was down in Bath (outside Bristol) a few months ago - no problem at all. Charger density out there is VERY low (Bath does not have one HPC) so that it is hard to see the PCM overloading. Ditto around M25 - no problems. Nowhere near the density of chargers you find around Benelux.

we do, you just need to know where to look the navigation here is terrible, so I think you were just lucky. I live here and it crashes constantly

 

[chun]

The question is what is the difference. As far as we know the J1.2 platform is allowed to run Software revision 4360 while the J1.1 platform runs 3882 or 3885. Even if you get a J1.2 PCM it is not known what the hardware difference is nor if they install 4360 onto it.

Crossing my fingers for you that you get new hardware spec together with 4360 software. Looking forward to your after service posting.

There is no difference. It’s just saving money on thouse hours of service time.

You are allowed to install 4360 on a j1.1. Porsche’s own PIWIS allows you. Order one from China, and do it… it will void warranty though.
I have had porsche service agreeing to do it, with the condition that it voids warranty.

Porsche central will not pay for the service hours it takes to do the update or the any hardware that will break during the update process.

 

[ovonrein]

I live here and it crashes constantly

I believe you. But then you are an indicator that the problem is not caused by the PCM overloading with data. Even navigation at your end of the country should not overload the PCM - roads around Bath are far and few between. Alternatively, of course, you could take away from my visits that there may be something wrong with your car.

you just need to know where to look

Ordinarily, I look at my PCM. And it thinks there are none. Does yours show any at all, or do you just know a secret HPC? (I always recharged at Gridserve in Delamere before entering Bath. And as soon as I got out again.)

 

[Dabz]

I believe you. But then you are an indicator that the problem is not caused by the PCM overloading with data. Even navigation at your end of the country should not overload the PCM - roads around Bath are far and few between. Alternatively, of course, you could take away from my visits that there may be something wrong with your car.
Ordinarily, I look at my PCM. And it thinks there are none. Does yours show any at all, or do you just know a secret HPC?

Sadly not covered on the Porsche Charging Service, but not massively expensive anyway. There's 400Kw chargers at MFG on London Road or 120Kw Instavolt at Odd Down football club as the two go-to's. The university has some that aren't advertised anywhere

My navigation was appalling at the weekend, even on short journeys it was crashing/restarting every 5 minutes or so. Really fed up with it now - fortunately the only time it did work was when taking me to a newish Ionity in Bristol that I hadn't used before.

 

[ovonrein]

There's 400Kw chargers at MFG on London Road

Weird. I use MFG around my neck of the woods and my PCS card is recognized. I like to use them because their gear usually delivers high charge currents.

 

[ovonrein]

Sadly not covered on the Porsche Charging Service

Perhaps drop Porsche a line. My feeling is that these things are only incorporated into the navigation once someone reports them, when the provider somehow failed to do so. I did the same recently with a new charger in Belgium. (Unless, of course, the good people of Bath wish to reserve it for themselves )

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