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Car dies when stopped, dealer cant replicate

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Old Oct 10, 2025 | 11:48 PM
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Default Car dies when stopped, dealer cant replicate
I have a cpo 2017 panamera 4s that random shuts off when stopped or when starting to go from a stop. Auto start/stop is off. It requires you to turn off the car, turn it back on and put it into gear.

It'll do it several times back to back but then go up to a week without it happening. I have a video of it doing it twice in 4 mins (it had done it more that day).

Local dealership cant replicate. Porsche of North America told me to go f myself.

Don't feel comfortable driving the car. I'm just waiting for it to die as I make a left hand turn with traffic coming.

I love the cars but it's hard to want to buy another Porsche even though it's the only car I really want. I've been looking at 991s.

Any advice?
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Old Oct 11, 2025 | 12:27 PM
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Have it towed in next time it does it. Or trade it into a different dealer.
The car should have stored codes as to why it's dyeing though. The dealer should be able to read them.
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Old Oct 12, 2025 | 12:01 PM
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Maybe have a tech drive it with diagnostic equipment attached. A friend had a similar issue (different brand), randomly shutting down and no restart until sat for an hour or so. Dealer could not find the issue then finally replaced the engine ECU. Problem solved.
Last edited by justabout; Oct 12, 2025 at 12:01 PM. Reason: Missing word
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Old Oct 12, 2025 | 12:09 PM
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Check for rodent damage.
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Old Oct 12, 2025 | 12:45 PM
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Originally Posted by justabout
Check for rodent damage.
Dealer will claim that's an outside source and blame every issue on that. Never give them this idea. You'll pay for absolutely everything
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Old Oct 12, 2025 | 01:55 PM
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Originally Posted by Shuga
Dealer will claim that's an outside source and blame every issue on that. Never give them this idea. You'll pay for absolutely everything
Honestly at this point I'd pay out of pocket assuming it wasn't more than the depreciation I'd "pay" by selling. I don't live where there is a lot of independent mechanics but I'm trying to find one.
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Old Oct 12, 2025 | 02:53 PM
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I had a similar experience last year when the car had not been driven recently. Charged the battery and have not had the problem since.
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Old Oct 12, 2025 | 03:45 PM
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Originally Posted by CDX
Honestly at this point I'd pay out of pocket assuming it wasn't more than the depreciation I'd "pay" by selling. I don't live where there is a lot of independent mechanics but I'm trying to find one.
But then your CPO is worthless if someone else touches something.
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Old Oct 12, 2025 | 05:42 PM
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Originally Posted by AceMktg
I had a similar experience last year when the car had not been driven recently. Charged the battery and have not had the problem since.
Yeah, that's what I'm going to try. Thanks.
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