22KW OBC FAILURE INSIGHT & POSSIBLE SOLUTION

[F1Ruaraidh]

Because Meta System is no more, they have already gone bankrupt and dont exist anymore. Therefore Porsche can only discontinue the 22KW OBC as the company making it is dead and wont make them anymore!

The company applied for bankrupcy at the Italian court 2 years ago and as of today stands liquidated!

Interesting.

Other suppliers are available....

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[ct14garage]

Interesting.

Other suppliers are available....

AFAIK nobody makes another 22KW OBC that would suit the Taycan!

 

[F1Ruaraidh]

AFAIK nobody makes another 22KW OBC that would suit the Taycan!

That's just a matter of writing the requirements and commissioning a new part from a different supplier. They won't of course. Good money after bad.

They'll have done that anyway as Macan has a new 22kW AC OBC

Sadly, it won't be backwardly compatible and I suspect Porsche want to forget J1.1 asap....

 

[whitex]

Oooh lucky find!

Yea. Interestingly, IIRC the EVSE was actually blinking temperature error code, which was a little confusing to me, but did not have time to debug as I was really busy with other things. The EVSE is a Tesla 80A/19.2kW HPWC Gen2 but modified by me to use a native J1772 instead of NACS. My mod is somewhat unique because I added a temperature sensor physically in the J1772 plug to match the NACS built-in sensor (most people modding those just connect a resistor in the EVSE to bypass the temperature sensing, I went with my usual "overengineered" solution of adding a real functional sensor). So I thought maybe the sensor I added broke. However, after figuring what it actually was, I think there is a good chance the temperature sensor actually saved my plug and possibly the Taycan charge port, as it could have been that the debris on the pins caused increased resistance, causing the pins to heat up (the sensor I added is snug between the wires in the plug, so it would pick up a pin heating up), resulting in the EVSE to refusing to charge.

So, given that J1772 EVSEs don't usually have temperature sensors in the J1772 plug, I wonder what would happen with other EVSEs in that situation with debris causing added resistance on the power pins. I know Tesla cars try to sense the end-to-end resistance by ramping the current slowly and if the voltage drops too much, they either keep the current lower than set, or they stop charging completely. I don't think Taycan, or the Audi does this, so perhaps in this situation it would just melt the plug or charge port until shorts out and triggers a safety shutdown? Note that Porsche added temperature sensors to PMC+/PMCC but only on the wall plug (like NEMA 14-50) side, not the car plug side (J1772 in North America).

 

[Rik_CT4s]

Any news on the 22kw OBC for the Taycan J1.1 these days? Mine failed for the second time, waiting for 22kw replacement.

 

[snoopy]

Any news on the 22kw OBC for the Taycan J1.1 these days? Mine failed for the second time, waiting for 22kw replacement.

There will be no 22kw replacement. Take 11kw and take the money compensation.

 

[okkotonushi]

Any news on the 22kw OBC for the Taycan J1.1 these days? Mine failed for the second time, waiting for 22kw replacement.

No 22kW anymore. Mine just changed last week to 11kW

 

[whitex]

Porsche feels as long as the part looks physically fits and does similar things, it's a valid replacement, even if it can only perform to half the original specification. I'm waiting to see what happens when they start replacing 911 V6 engines under warranty with 4 cylinder versions, and Porsche telling customers they don't need any more power since their data shows most 911's never use it.

 

[MrJones02]

Here also a 11kw replacement for the 22kw that failed (again) a week ago.
No word on the type/amount of compensation yet ... they sure didn't bring that up themselves.

 

[Rik_CT4s]

Here also a 11kw replacement for the 22kw that failed (again) a week ago.
No word on the type/amount of compensation yet ... they sure didn't bring that up themselves.

How often did it fail so far? How many km have you driven after a new one was installed? Many thanks.
In the same situation. Failed twice now. I do not accept a 11kw version.

 

[F1Ruaraidh]

My 11kW has already been replaced once already due to failure. Porsche need to create a new 11/22kW solution that's backwardly compatible.

Of course they won't because in their eyes, Taycan is already junk and Macan is where things are. Very traditional OEM.

 

[whitex]

My 11kW has already been replaced once already due to failure. Porsche need to create a new 11/22kW solution that's backwardly compatible.

Of course they won't because in their eyes, Taycan is already junk and Macan is where things are. Very traditional OEM.

Macan EV is just a rebadged Audi, Porsche didn't design much of it.

 

[MrJones02]

How often did it fail so far? How many km have you driven after a new one was installed? Many thanks.
In the same situation. Failed twice now. I do not accept a 11kw version.

This is the second time, first time was almost 2 years / 25K km ago.

Fun fact, 2 years ago car was 2 or 3 weeks out of warranty when the OBC died, had to pay a little over €800 + VAT for work to replace the 22kw, and a very small portion of the actual part ... at that time the 22kw didn't have extended warranty yet, according to porsche there were absolutely no problems known with it and it was goodwill that only the work had to be paid and a little bit for the part as it was barely out of warranty.

Maybe that's why it's taking them so long to come up with compensation as that's now also part of it.

 

[snoopy]

How often did it fail so far? How many km have you driven after a new one was installed? Many thanks.
In the same situation. Failed twice now. I do not accept a 11kw version.

You would rather go on with not knowing when it will fail than to use the 11kw version, which is well tested and it works? in the end you will have a 22kw unit, without warranty and when it fails again you will need to pay the cost to switch to 11kw.

 

[whitex]

You would rather go on with not knowing when it will fail than to use the 11kw version, which is well tested and it works?

Search this forum, 11kW OBCs fail too. Porsche just streamlined their spare parts supply channels to only stock one SKU instead of two. No surprise they picked the SKU that is in most cars, and is cheaper per part.

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