Week 2 : Electrical System Fault- park safely

[Ztarman]

Mine happened Saturday. My 12v eventually died with me trying to do the two finger salute. Leaving it locked with the key far away. Pop the frunk and keep it open incase you have to jump the 12V to get the car in neutral.

Dealer cannot figure out the issue. They put a PRMS to Germany to try and get them to diagnose what is up.

I tried a few times, returning after 15 minutes, nothing. Then i tried a different key which had been in a faraday box and it worked with no fault?! Will monitor it over next few days and try the other key again

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[PDACPA]

I tried a few times, returning after 15 minutes, nothing. Then i tried a different key which had been in a faraday box and it worked with no fault?! Will monitor it over next few days and try the other key again

You got lucky! In my research, many had this happen. Sort of a fluke and then never re-appeared. I was hoping for as much. Dealer says they can connect to the computer, but cannot get the car to start and moved it to Germany. I fear the main battery has gone bad.

 

[Ztarman]

You got lucky! In my research, many had this happen. Sort of a fluke and then never re-appeared. I was hoping for as much. Dealer says they can connect to the computer, but cannot get the car to start and moved it to Germany. I fear the main battery has gone bad.

I fear you are right. My car is 6 weeks old now. The HV charger was the thing that first caused the breakdown 4 weeks ago (after 2 weeks), got it fixed after 2 weeks and car back 10 days ago. Now I wonder if a faulty charger ruins the battery by not charging it correctly. Holding my breath

 

[Skilly]

mine was straight to a bad battery. No mention of a faulty charger, and now have to wonder if both should be done. Does Porsche fully understand the problem or do you get the sense that they are exploring and fixing?

 

[PDACPA]

I fear you are right. My car is 6 weeks old now. The HV charger was the thing that first caused the breakdown 4 weeks ago (after 2 weeks), got it fixed after 2 weeks and car back 10 days ago. Now I wonder if a faulty charger ruins the battery by not charging it correctly. Holding my breath

I saw on the other Taycan forum someone with the HV charger and then the big battery going bad like 20 days later. Hope that is not the case for you!

 

[Ztarman]

mine was straight to a bad battery. No mention of a faulty charger, and now have to wonder if both should be done. Does Porsche fully understand the problem or do you get the sense that they are exploring and fixing?

I get the impression Porsche fully understands the problem (service man said it happens a lot) but it would cost a lot to recall and so they they just fix as they break. We are seduced by the looks and acceleration and so as soon as it comes back we chose to forget. I did for 10 days until it bricked again...

 

[PDACPA]

I get the impression Porsche fully understands the problem (service man said it happens a lot) but it would cost a lot to recall and so they they just fix as they break. We are seduced by the looks and acceleration and so as soon as it comes back we chose to forget. I did for 10 days until it bricked again...

I think this is starting to become more frequent. When I searched it, there were a number of posts in various places. Yes, people only post if an issue, but still happening. The yellow electrical error happens, but clears itself when the car goes to sleep and does not come back. I wonder if that is a precursor to the red electrical error that bricks the car. I had the yellow error maybe 8 months ago and only 1 time.

I would be a little more understanding if the dealer treated me with better customer service and once they realized the severity of the issue, they stepped up their game and give us a loaner car!

 

[Skilly]

The dealers are being hit pretty hard right now. Sales have dropped off a cliff and the money is not following in. Some of them carry up to $1M/month in operational expenses. So while the excuse for limited loaner access for the last 2 years has been supply chain, its shifted to cost containment (they just won't say it out loud). I don't think this changes anytime soon - the dealerships have domain over these brand impacting decisions.

I count 4 ppl on this forum in the last 30 days with this problem. And, while I agree, forum members might be inclined to post here with bad news like this, I believe that this issue is grossly under represented here. Rather the problem is bigger than the forum indicates - apologies to the moderators, but not everyone decides on ownership to join the forum!

My dealer alone has 2 other Taycans sitting with a 'bricked' status. And one just left with a replacement battery. I'm in a suburb. The densely populated areas around me are saturated with 6 other Porsche dealerships closer to those areas. My 2 cents is this is at least bigger than a couple of isolated incidents.

 

[PDACPA]

I just had DM from a guy in the UK on the other forum that said that he had the same error and his dealer and Germany were back and forth for over 8 weeks debating replacing the $50k battery under warranty. In the end he said they replaced a bad cell and it has been fine, but he had the heater issue and charger locking in the car failure.

 

[PDACPA]

Dealer finally found me a loaner (Cayenne). I checked my airtag to see where on the property my car was. Poor thing stuck out back all alone by the auction candidates.

 

[RoseyPSU]

I count 4 ppl on this forum in the last 30 days with this problem.

I think I was one of these people. Car was bricked Friday. Towed to Porsche dealer. They couldn't replicate the issue and it worked perfectly for them every time they tested or charged it. The work order says "found inactive faults in the high voltage charge unit. Found faults would not return." So I guess I just hope it doesn't happen again.

 

[PDACPA]

I think I was one of these people. Car was bricked Friday. Towed to Porsche dealer. They couldn't replicate the issue and it worked perfectly for them every time they tested or charged it. The work order says "found inactive faults in the high voltage charge unit. Found faults would not return." So I guess I just hope it doesn't happen again.

A few others have reported the same thing. HV charger in once case was replaed and 20 days later the HV battery was replaced.

 

[Archimedes]

Hi Archimedes, quoted range for performance battery by Porsche from the website is

Post the link to that page. The best the US shows is 270’s, an that’s the AMCI test methodology, which is not real world.

 

[Archimedes]

The only saving grace is that range calculations when using NAV are very accurate and can be relied upon.

I found the exact opposite on my recent trip. Every time I put a destination in the NAV, it reduced the estimated range significantly, and it was wrong every time. Was quite annoying.

 

[W1NGE]

I found the exact opposite on my recent trip. Every time I put a destination in the NAV, it reduced the estimated range significantly, and it was wrong every time. Was quite annoying.

To be clear I am referring to the battery remaining range at your destination.

Typically this fluctuates a percent or two from the original estimate assuming you keep to the speed limits on your journey.

NAV continually calculates SOC as you progress and typically you can end up with a few percent more rather than less.

Either way my experience has always been a percent extra SOC by the time I get to my destination which for me is pretty precise.

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