Recall: Power Outlet May Cause Charging Cable to Overheat (20-24) APB6 - December 13, 2023

[Tooney]

Edited with additional information at the bottom of post.

https://www.nhtsa.gov/vehicle/2023/PORSCHE/TAYCAN/4%2520DR/RWD#recalls
https://static.nhtsa.gov/odi/rcl/2023/RCMN-23V841-8821.pdf

EDITED: Additional detailed info from Porsche notice posted on NHTSA website:
Chronology :
In Dec. 2020 Porsche became aware of reports that the charging cables for certain Taycan vehicles would become hot during vehicle charging. Porsche investigated this issue and determined that the charging cable worked properly when new, but when used in connection with certain non-recommended lower quality electrical outlets, the cable could become damaged.
In May 2022, Porsche notified owners and implemented a service campaign (WMP2) with a software modification to reduce the default charging capacity of the cables by 50% to address this issue. Further information, recommendations, and cautions were provided regarding the appropriate electrical sockets to use.

In June 2023, Porsche became aware of further instances of overheating in Taycan charging cables, even with the power reduction. Porsche investigated this issue and determined that, even though the NEMA plug in the charging cable meets UL household use criteria, if it is used with a lower quality electrical receptacle, it can become permanently damaged, such that even when used with a recommended outlet, there could be elevated electrical resistance. More specifically, the connector crimps in the cable could be damaged due to overheating, leading to further increased electrical resistance and elevated temperatures. Porsche further determined that a new plug with an incorporated temperature sensor would eliminate this issue.

In late 2023, upon further review of the issue and the latest field data, Porsche identified 110 incidents of mobile charger malfunctions attributable to the subject issue. On December 6, Porsche determined that it would supersede the WMP2 Service Campaign and conduct a safety recall to replace the subject mobile chargers.

Identify How/When Recall Condition was Corrected in Production :
The charging plug with sensors was incorporated into production in Calendar Week 48 of 2023

Involved Components :

Component Name 1 : NEMA charging cable
Component Description : Cable between the power socket and the Porsche Mobile Charger
Component Part Number : 7PP971678EA
Component Name 2 : NEMA charging cable
Component Description : Cable between the power socket and the Porsche Mobile Charger
Component Part Number : 7PP971678EB
Component Name 3 : NEMA charging cable
Component Description : Cable between the power socket and the Porsche Mobile Charger
Component Part Number : 7PP971678EC
Component Name 4 : NEMA charging cable
Component Description : Cable between the power socket and the Porsche Mobile Charger
Component Part Number : 7PP971678ED

https://static.nhtsa.gov/odi/rcl/2023/RCLRPT-23V841-5733.PDF

Edited: TSB for remedy posted on June 4, 2024: https://www.taycanforum.com/forum/threads/tsb-for-recall-apb6-–-charging-cable-porsche-mobile-charger-with-nema-plug-may-17-2024.20018/#post-307917

Edit: 5,071 cars in Canada https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/detail.aspx?lang=eng&mk=2003&mkName=PORSCHE&md=TAYCAN&fy=0&ty=9999&ft=&ls=0&sy=0&syName=All Systems&all=0&rn=2023662&cf=SearchResult&pg=0

Edited on October 29, 2024, with link to owner letter indicating that the remedy parts are available. https://static.nhtsa.gov/odi/rcl/2023/RCONL-23V841-1927.pdf

Edited on November 18, 2024 with link to TSB warning that some replacement power cables give errors when connected to 220v outlet. TSB: Porsche Mobile Charger Plus Supply Cable Failure (in "fixed" PMC+) Ensure your dealer checks for this after installing the new cable.

Edited on Jan. 24, 2025 to add link to recall report: https://static.nhtsa.gov/odi/rcl/2023/RCLQRT-23V841-8446.PDF

Edited on July 30, 2025, to add link to recall report: https://static.nhtsa.gov/odi/rcl/2023/RCLQRT-23V841-9311.pdf

Edited on Jan. 29, 2026 to add link to US recall report: https://static.nhtsa.gov/odi/rcl/2023/RCLQRT-23V841-7714.pdf
Edited on Apr. 18, 2026, to add link to US recall report: https://static.nhtsa.gov/odi/rcl/2023/RCLQRT-23V841-6154.pdf

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[daveo4EV]

finally - but I'll be disappointed if we get a new power supply cable w/thermal sensor but they keep the crappy and barely adequate 10 AWG wire vs. and improved 8 or 6 AWG wire reducing nominal operating temperatures

this makes sense for them prior to the release of a potentially popular and high volume Macan EV - going to market with their existing north american EVSE and it's known problems and the Macan EV demographic might've been a painful exercise…

I'll be interested to see exactly what changes are in the new Power supply cable.

3 1/2 years late, but I guess better than never - 4 years total if delivery mid-2024 is accurate…

 

[Tooney]

Why didn't anybody in here spot this problem earlier? https://www.taycanforum.com/forum/threads/nema-14-50-supply-cable-heat-data.1940/

 

[FlyingPoint]

Now where did I put that POS EVSE? Its been a long time since I have seen it.

 

[Tooney]

Notice the title 'Power outlet may cause charging cable to overheat'.

It's the outlet, @daveo4EV, the outlet, I tell you!

 

[daveo4EV]

Notice the title 'Power outlet may cause charging cable to overheat'.

It's the outlet, @daveo4EV, the outlet, I tell you!

as noted prior the wimpy North American NEMA sockets can not handle the awesome power of German engineering!!! It's the german's overpowering the wimpy American's!!! We are simply not worthy or up to the task!!

I see this recall as practical - it's simply not feasible to "enforce/require" everyone to have a $120 NEMA Hubble socket - too much existing installed base to deal with - and their Hubble solution never addressed the fact that their _MOBILE_ EVSE might be plugged into outlets that the EV owner doesn't control (work, hotels, RV parks, camp ground, parking lots) - they can't simply say we do not work with the 'installed base"

this is a sensible route forward - but I wonder:

• ok we have a thermal sensor - what are they going to do with it? it is a 'fuse' or data for the eVSE - if it's "data" - we'll need a software update - that's fine for the PMCC - but what about the PMC+?
• it will be a missed opportunity to no upgrade the wire gauge
• how many of these power cables do they need to replace for VW/Audi/Porsche - there's a lot of them
• why did it take them 3.5 years to capitulate?
• will I get my $1 bet winnings from my local service manager - he said they'd never do it…LOL

but yeah - its' the socket - it's not their crappy EVSE which has a nominal operating temperature of a toaster…the fact that other EVSE's rarely if ever melt sockets is not data we've reviewed.

 

[Tooney]

I wonder why now?, too. Your point about doing this before Macan EV release may be the reason.

 

[Tooney]

When they distribute the replacement cables, will the dealers reset all the PMC+s to charge at 100%?

 

[daveo4EV]

I wonder why now?, too. Your point about doing this before Macan EV release may be the reason.

Macan and Audi Q6 - someone may have realized they hope to sell a LOT of those things - and I don't see the current state of affairs with the PMC+/PMCC (and the VW/Audi identical equivalents) being sustainable - I would've been very very awkward to have the current state of affairs with high-volume product like the Q6/Macan EV.

 

[daveo4EV]

both this recall and the NACS annoucment improve's Porsche's North American charging story - which up until now had some weakness to it…

the Q6/Macan EV's coming in 2024/2025 would've had head winds in the market place with the NACS issue not addressed - and while I do not see market issue with the PMC+/PMCC was a "hidden weakness" that avoids future customer satisfaction issues - although few if any buyers would've known anything about that prior to a purchase decision, but post purchase it could've been a real headache…

NACS and PMC+/PMCC recall = 2 issues "down/gone" for the Q6/Macan EV product cycles…

doing nothing was an option - glad VW/Audi/Porsche decided this needed addressing.

 

[Tooney]

but yeah - its' the socket - it's not their crappy EVSE which has a nominal operating temperature of a toaster…the fact that other EVSE's rarely if ever melt sockets is not data we've reviewed.

These recalls consist of:
the actual problem,
the actual remedy, and
the CYA wording describing the recall.

In this recall case the outlet is the cause, not the cable.
In the HV battery short circuit recall, "overcharging" and "multiple charging events above the upper voltage limit" are the causes, not the battery.

As long as the problems are resolved, I guess it doesn't matter how they label it.

 

[enzo5000]

I run my charger at the 50% charge setting all the time anyway. Until the new cable becomes available, everyone should do the same.

 

[laua]

Porsche is on a roll with the recalls! I don’t use the cable they gave but it won’t hurt to have another. I wonder if it will still be as bulky as the current version.

 

[j_scheetz]

I made new cables from the receptacle to the charger and from the charger to the car using #8 wire. The temp dropped over 30 degrees F at the receptacle and over 70 degrees F at the car when charging at 40 amps for 3 hours. I am hoping for # 8 wire and not just a sensor.

 

[Tooney]

• how many of these power cables do they need to replace for VW/Audi/Porsche - there's a lot of them

Per the recall notices, 41,000 for Porsche and 93,000 for Audi and 5,000 Porsches in Canada.

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