My 2020 CPO Taycan experienced a total loss of power on the hwy, car displayed a red Engine Control Error and would not drive. Quick 5min research told me to turn the car off and on again and itll work? Tried it, it did work. I then made an appt at my dealership and dropped the car off the next day. I did a bunch of research on my own and found its obv a common issue and there exists a Porsche ATI 2519.1 https://static.nhtsa.gov/odi/tsbs/2025/MC-11024070-0001.pdf that covers this exact situation.
I told my service advisor that I believe this is whats wrong with my car and that I want this capacitance test performed on my front and rear PE units.
At first they refused to do the test and only performed a software update. I was not satisfied with this result and pushed and got the service manager to perform the actual capacitance test. My front PE measured at 217 and the rear PE measured at 280. I assumed once I got these results that Porsche would replace both PE units under warranty as they are below their own tolerance limit as per that ATI.
Thats not at all whats happening. They said because I pushed for this test to be done and that they did it out of goodwill and not under warranty, that the results are irrelevant and cant be used to get the PE's replaced under warranty. What they need is to be able to reproduce the actual fault. In other words, they want the PEs to fail again and then they can replace. They did a 100 mile test drive and cant get the car to throw the fault again.
I believe this is a huge safety risk as we already know the inverters are 50% below their original capacitance and its really just of a matter of time until the car dies on the hwy again and I could be in an accident or worse.
I dont understand how Porsche is taking this stance and telling me to pick up a physically defective car.
What do I do next?