That's great stuff. Glad things are moving. Sounds like reason enough to crack a XXXX Gold or Carlton Midstrength.

Save the big hitting stuff for when you get it back in your driveway.

 

I started having this issue on my new 130 as well. It happened after I left the vehicle for ~10-12 days on a trip without it being on a battery tender (I've never had a problem until getting close to ~1month with other vehicles). So I ran the vehicle/drove it a bit and cycled the ignition and things were back to normal. The issue did not come back for about a month until this past weekend, which I left the vehicle for 3 days with it locked in the garage. This time I let the vehicle idle for a decent period of time, walked out to the vehicle to find every dash light/warning imaginable (abs, traction control, cruise sensors, brakes, gear selector alerts) was lit up. So I turned off the vehicle, and then tried a restart. Here is where it gets a bit weird. The vehicle would not crank at all, sounded/acted like a typical dead battery in any other car, lots of clicking, lights in the dash flickering when it was trying to crank. So I decided not to use my jump pack and get the car down to the dealership, so I call roadside assistance and had a pickup scheduled. Due to some changes of drivers the time kept increasing of when they were going to pick it up (it was outside of my place, so no big deal) I decided to go out after an hour or so and give it another shot. The vehicle started with absolutely no hesitation, no warning lights at all. It didn't even sound strained, the lights were not dimming or flickering as LEDs with low voltage would. So I don't think the actual battery was depleted or low, at least anecdotally since I wasn't measuring voltage. So I proceeded to drive it down to the dealership (cancelled roadside since it was still hour+ out) since it was acting normal and there were all sorts of faults (from the basic code checker the service advisor had). We scheduled an appointment for this upcoming Monday to go through and do a thorough test of the battery system, etc.

The vehicle was completely fine this week until yesterday, which this time I had let it sit for 1 day without driving it. Same deal; start it up, electrical fault alert. Shut the car off, let it sit for ~15-20 mins, restart it, alerts go away (however the app shows a low battery alert if I try to lock via it, but nothing from the car). I had to drive down to near the dealership so I decided to swing in again and let them know that it happened again. The irony of stopping by was that there was a TSB (or whatever Land Rover calls them) released yesterday for the BiSG that appears to be a software update. Since I have an appointment scheduled for Monday I will hopefully have more info as to whether or not this is a potential fix for this issue, or if there is some sort of issue with my battery or charging system. Given that this event is manifesting with less days between driving as time goes on, I kind of wonder about the integrity of the battery as the triggering action. Maybe the BiSG has some weird voltage thresholds that cause it to trigger these fault alerts.

Anyway I'll post an update next week as to whether or not this BiSG TSB is related to this particular issue that we're seeing!

 

Ok I had my vehicle updated with the new firmware for the BISG. My issue had become pretty easy to reproduce so we will see within the next couple of days if the issue is actually fixed. I am hopeful given what it appears to fix seems to be the exact issue I was having. It looks as though this may end up being an actual recall vs. a TSB, at least given the work order calls it "recall N846". Had a great experience with the dealership here in Salt Lake City. Here is a picture of the pertinent info:

 

Thanks for the update. I checked Topix and my vehicle shows "N846 - BISG CHARGING INOPERATIVE ON FIRST STARTUP".

Seems like a few others are reporting the issue now.

I wonder if my issue might have been fixed with a firmware update rather than a new BiSG?

 

It might make sense to reach out to a local dealership and ask them. I would wager to bet that it could be related, especially since this just came out this past Friday so dealers probably didn't really know what the issue was and thought there was a failing unit.

 

It's too late - they already replaced the BiSG, but with a superseded part until they can lay hands on the correct part.

I guess they could reinstall the original one they removed and try to update it?

Anyway, I have contacted them so will see what they say.

 

The same error showed up on my 22 Discoery Sport last night and even after stopping for 45 minutes it continued to happen. Driving home about 3 miles from hoe I got the engine overheating error, the car has n heat internally, and the temperature gauge was way in the red. Parking in my driveway there was a fan blowing like crazy and when opening the hood steam escaped from around the coolant tank and some coolant was dripping onto the pavement. This morning I used an OCBII reader and no error message at all but did see two warnings when I turned on the igniation: 1) Battery Low, 2) Coolant fluid level low. I opened the hood and the coolant tank is completely empty. As it is raining right now I can't tell how much escaped but since the tank is empty I fear the worst.
So much for owning a Landrover.

 

Man, sorry to hear that.

Have you checked your engine belts are intact? The first thing I found on-line regarding this error was that it was most commonly a broken belt.

 

I've had a similar experience today with my p300 hybrid evoque.
Whilst driving it showed an electrical fault and before I could pull over it began a sequence of warnings, gear box, abs, stability etc the screen then went black, quickly followed by the dash and then all power went. I had to drift to the verge and abandon in a farmers field entrance and await recovery.
Once it had sat for 3 hours it did restart and all that remained was an engine warning light.
Had the land rover tech out to look at it. Its a suspected fault with one of the connectors to the battery, effectively its not charging and whilst driving it ran down until it ran out of charge and essentially 'shut down'.
The dealership are taking it in to fix the connector on the battery, So will see if this solves the issue.

 

Hello - ran across your post and this is exactly what happened today with my 2024 Defender 130. Barely got it off a busy road as the vehicle completely lost all power.
Had it towed and to add to this there is no longer a release in the engine compartment to put the vehicle in neutral - so it had to be dragged onto the flat bed tow truck.
What was the end result on your situation?