Porsche Cayenne GTS issue

[ollie plymsoles]

Hi folks,

We had the first breakdown about a week and a half ago in 25 years of motoring. A 2023 Porsche Cayenne Gts.

We've owned the car since around November and it has had no issues or signs of any issues.
Then one day my wife couldn't get in it. We tried the two fobs and no good. We used the emergency key under the handle and managed to get into the car to find the battery was totally gone, no lights, alarms or anything.
Porsche assist (AA)came and got the car going using their starter pack. He said take it for a good drive and it'll be ok afterwards.
Well the wife was out for 60mins , came home reversed it on the drive and yep totally flat again.

The AA came out the next morning and boosted the car again and she drove it to Porsche Preston where its been ever since with no update apart from they were trying to put charge in the battery.

Is this a common thing with this lithium battery in this model.?
It seemed unusual to go from a good working battery that had just been up and down the motorway a couple of days before to be totally gone with not even enough power to open the doors?
When our old Macan was getting low it alerted us in the app and it was noticeable as in the seats wouldnt auto move and the comfort lighting would go out straight away on switch off. Mostly during extreme cold weather, when I would just use my cteck and charge it overnight and then it would be fine for the rest of the year.

Has anyone had a similar issue on a Cayenne?

[DC1960]

Lots of discussion here on Cayenne and on the 992 911 forum about lithium batteries:

https://rennlist.com/forums/cayenne-9y0-2019/11296...

I have a 2023 911 GTS with the lithium battery and a 2024 Cayenne S-E Hybrid with the AGM battery. Both always connected to CTEK chargers, even if used daily. I connect direct to the battery live and earth point and use quick connects via the front and drivers side wiper.

Good luck with a warranty claim if the battery is kaput as the above forums have Porsche declining. Lithium light, but very expensive and the number of issues led to the revised Cayenne having AGM vice lithium when the Cayenne had its last LCI - as is the case in my 2024 model.

[scrounger73]

Who are you dealing with at Preston? Scott Robertson is my go to guy and he's brilliant. Mine was in for some work last week and he kept me up to date every couple of days. Longest bit was waiting for parts to come in from Germany but once they were in the job was done in a day.