DC charging issue/failures

[tigerbalm]

I am waiting to get a few % of SoC into the car on AC – before going to one more nearby 400V charger to check if charging on AC has fixed anything

After an hour or so on AC at home – tried a 400V 150 kW and a 50 kW near me and both instantly failed. So consistently failing across five chargers tonight.

I am now going to leave car sit (not AC charging) overnight and try again in the morning. I continue to hope it will fail tomorrow and then we'll have a much easier time figuring out parts to replace.

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[tigerbalm]

This morning the DC charging failed after the car sitting idle (and unplugged) overnight. This is good as its now consistently failing.

I'd guess the DC Booster has been failing for a while and has now completely failed.

Here is a summary of my charging attempts over the past 24 hours:

Attempt #	Date/Time	Network	Charger Type	Outcome	Comments/Notes
1	Fri 19 Jan – Morning	IONITY	350 kW 800V	Success	With PIWIS tester plugged in.
2	Fri 19 Jan – Morning	IONITY	350 kW 800V	Success	With PIWIS tester plugged in.
3	Fri 19 Jan – Evening	IONITY	350 kW 800V	Failure	Failed after 30 seconds
4	Fri 19 Jan – Evening	IONITY	350 kW 800V	Failure	Failed immediately (after 5 mins of car locked)
5	Fri 19 Jan – Evening	IONITY	350 kW 800V	Failure	Failed immediately (after an hour of car locked)
6	Fri 19 Jan – Evening	AppleGreen	180 kW 800V	Failure	Failed immediately (after 20 mins of driving)
7	Fri 19 Jan – Evening	Home	7 kW AC	Success	Charged for one hour to put some charge into battery to reach more DC chargers for testing.
8	Fri 19 Jan – Evening	ESB	150 kW 400V	Failure	Failed immediately
9	Fri 19 Jan – Evening	ESB	50 kW 400V	Failure	Failed immediately
10	Fri 19 Jan – Evening	Home	7 kW AC	Success	Charged for two hours. Then left unplugged overnight.
11	Sat 20 Jan – Morning	ESB	150 kW 400V	Failure	Failed immediately after sitting overnight.

I'm going to pop up to my Porsche Centre in about an hour and confirm it is failing immediately on their DC chargers there – and then I have – what we call in the software industry a REPL: Read, Execute, Print and Loop. Basically an easily reproducible bug/failure.

Three weeks to Norway trip ... eeek!

Performing test #11 this morning:

 

[Donlam]

It is well documenation on this issue. I hope if the problem is from your 22kw on board charger and they can sort it out before your long trip! Good luck!

 

[f1eng]

Hope fixed soon

Me neither. The only thing I know is that when the RWD launched – it did so with the software that took out the "AWD display" from the left tube on the dashboard. And did the same when they rolled out that software ("the big update") to all Taycan's.

I still miss it.

It was one of the things I found most interesting on my demo Taycan, gone by the time mine was delivered.
The biggest danger would be me spending too much time looking at it when trying things out and crashing, so probably best it isn't there!

 

[tigerbalm]

Just back from Porsche Centre and it was consistently broken there too – right where I need it to be.

This should make diagnosis much more straight forward. Now its a race against time to get replacement parts for our Feb 9 deadline to set off for Norway.

Left my car there and am now rocking a Taycan Cross Turismo – my first time driving that body shape. And it has the compass option – perfect for our roadtrips – I do wish this was offered on the regular Taycan body shape.

 

[whitex]

And it has the compass option – perfect for our roadtrips – I do wish this was offered on the regular Taycan body shape.

You might be able to retrofit one into a sedan.

 

[Scandinavian]

Just back from Porsche Centre and it was consistently broken there too – right where I need it to be.

This should make diagnosis much more straight forward. Now its a race against time to get replacement parts for our Feb 9 deadline to set off for Norway.





Left my car there and am now rocking a Taycan Cross Turismo – my first time driving that body shape. And it has the compass option – perfect for our roadtrips – I do wish this was offered on the regular Taycan body shape.

Still hope you will get your car sorted before your planned trip! Good that it finally failed at the Porsche Centre so they can have the fault codes.

Hey the parking in your picture above, I thought that was the way it was reserved for BMW drivers??? ??

 

[tigerbalm]

Hey the parking in your picture above, I thought that was the way it was reserved for BMW drivers??? ??

I know right!

Our other car – Fiat 500 EV – is currently under repair after a crash and I'm just making sure that idle spot doesn't turn into a "community" space due to being unused!

Also, parking a Taycan is bliss compared to when it is there and having to avoid that pillar with our charger on it when squeezing in.

 

[tigerbalm]

As suspected but now finally confirmed it is a failure of the "high-voltage booster" and its inability for its internals to switch into DC fast charge mode – keeping the CP line at 9V.

Part ordered from Germany and it is now a race-against-time for it to arrive and get fitted ahead of road-trip. It is due to arrive into Ireland four days before we head off!

Parts in general are arriving on time for the past few months.

Credit to Porsche Centre Dublin so far on this – they have put in a ton of effort (no doubt helped by my knowledgable reporting) into what was until recently a tricky issue to trigger.

 

[Scandinavian]

As suspected but now finally confirmed it is a failure of the "high-voltage booster" and its inability for its internals to switch into DC fast charge mode – keeping the CP line at 9V.

Part ordered from Germany and it is now a race-against-time for it to arrive and get fitted ahead of road-trip. It is due to arrive into Ireland four days before we head off!

Parts in general are arriving on time for the past few months.

Credit to Porsche Centre Dublin so far on this – they have put in a ton of effort (no doubt helped by my knowledgable reporting) into what was until recently a tricky issue to trigger.

Good to hear that they have diagnosed and found the culprit.
Fingers and toes crossed that you will get your car in time!

 

[whitex]

As suspected but now finally confirmed it is a failure of the "high-voltage booster" and its inability for its internals to switch into DC fast charge mode – keeping the CP line at 9V.

Part ordered from Germany and it is now a race-against-time for it to arrive and get fitted ahead of road-trip. It is due to arrive into Ireland four days before we head off!

Parts in general are arriving on time for the past few months.

Credit to Porsche Centre Dublin so far on this – they have put in a ton of effort (no doubt helped by my knowledgable reporting) into what was until recently a tricky issue to trigger.

Any change they want to take the HV booster out of your loaner and put it in your car? It would save a ton of mileage on an almost new loaner if you end up taking it on a road-trip. It might sounds crazy, but I have seen it done with other brands/other parts.

 

[tigerbalm]

Any change they want to take the HV booster out of your loaner and put it in your car? It would save a ton of mileage on an almost new loaner if you end up taking it on a road-trip. It might sounds crazy, but I have seen it done with other brands/other parts.

Yes, that offer/suggestion was made by my Porsche Centre – so it is definitely our fallback option – and much preferred over taking a loaner on the trip. We've configured our own car just the way we like it!

Even the simple challenge of swapping around winter tyre sets to loaner would be a pain.

 

[whitex]

Yes, that offer/suggestion was made by my Porsche Centre – so it is definitely our fallback option – and much preferred over taking a loaner on the trip. We've configured our own car just the way we like it!

Even the simple challenge of swapping around winter tyre sets to loaner would be a pain.

Sounds like a win-win solution in case the new part does not arrive on time, or is DOA,(which happens, happened to me once, different part and another brand) - you get to road-trip in the car with options you speced, dealer does not end up with a loaner with a ton of mileage and road-trip usage on their hands. Taycans windshields and headlights do not stay pristine after a long road trip. Mine was "baptized" with a 3,500 mile trip home from the dealer, so I never worried about it much, as after that trip the headlights and windshield definitely don't look sparkling brand new.

 

[simcity]

As suspected but now finally confirmed it is a failure of the "high-voltage booster" and its inability for its internals to switch into DC fast charge mode – keeping the CP line at 9V.

Part ordered from Germany and it is now a race-against-time for it to arrive and get fitted ahead of road-trip. It is due to arrive into Ireland four days before we head off!

Parts in general are arriving on time for the past few months.

Credit to Porsche Centre Dublin so far on this – they have put in a ton of effort (no doubt helped by my knowledgable reporting) into what was until recently a tricky issue to trigger.

Yeah as said; good they found the fault. Well done on helping with the diagnostics. I’m sure that sped matters up.

Fingers crossed for you they can sort it in time ?

 

[tigerbalm]

Going from not being able to re-create the issue on Friday morning when we had the Porsche Diagnostic Computer plugged in after travelling 40km to IONITY to solidly broken by that evening was a rollercoaster!

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