PSA: Recall for HV Battery

[SameGuy]

Got to the BMW/MINI dealership at 6:45 am, first one in. SA – as well as the main MINI tech sitting waiting for the work order – haven't heard about the recall. ¯\_(ツ)_/¯

I had a few minutes before the door opened, hooked up the ENET cable to my phone (it flies compared to Bluetooth) and took screen shots of all the modules to have a basic idea of my changes. Rear fogs and a couple other things were done in Expert mode so I'll have to go back through my notes for those. TJA, we will see. I should just finally learn Esys, and I can do the changes myself; the guy who did it was using my car as an SE alpha mule, as he drives a Clubman. I can't get in touch with him anymore, but at the time he did send me the notes of what he changed.

 

[SameGuy]

:facepalm:

Insistent there was no recall, after 90 minutes for a basic service I asked the SA for an update, and he said the brake fluid was done, wiper change I requested as well, was working on the cabin filter now while the recall update was being loaded. Huh? "Well, yeah, it takes a couple of hours to program a control unit." I thought you said there was no recall... "Well, not for the battery. This is just software."

:facepalm:

 

[insightman]

:facepalm:

Insistent there was no recall, after 90 minutes for a basic service I asked the SA for an update, and he said the brake fluid was done, wiper change I requested as well, was working on the cabin filter now while the recall update was being loaded. Huh? "Well, yeah, it takes a couple of hours to program a control unit." I thought you said there was no recall... "Well, not for the battery. This is just software."

:facepalm:

Does the dealer's software update not include the same information as the notification we can access?

 

[polyphonic]

Bimmercode users, make a detailed log of everything you've done. They wipe it every time the car goes in for service.

Wonder how the car will discharge itself to 30%, and over what period of time. Stall the motor somehow, pop the windows and run the heater?

Also the protocol really doesn't make sense. So once this happens the car or battery is a labeled a dud and they take it back? Can't imagine any other circumstance.

 

[teslarati97]

Bimmercode users, make a detailed log of everything you've done. They wipe it every time the car goes in for service.

Wonder how the car will discharge itself to 30%, and over what period of time. Stall the motor somehow, pop the windows and run the heater?

Also the protocol really doesn't make sense. So once this happens the car or battery is a labeled a dud and they take it back? Can't imagine any other circumstance.

The recall is for the faulty BMS, and I would guess losing module voltage data (hence voltage overcharge or sudden loss of power). In regards to the 30%, that would be the standard transport mode SoC so there's probably code to be reused. I haven't seen how they drain the battery but I'd imagine it's a slow bleed of running the HV battery cooling system.

:facepalm:

Insistent there was no recall, after 90 minutes for a basic service I asked the SA for an update, and he said the brake fluid was done, wiper change I requested as well, was working on the cabin filter now while the recall update was being loaded. Huh? "Well, yeah, it takes a couple of hours to program a control unit." I thought you said there was no recall... "Well, not for the battery. This is just software."

:facepalm:

As for dealerships, they need to have their ISTA/D & ISTA/P systems updated in order to do the reprogramming. ISTA/D can only do ALL the modules so it takes forever. ISTA/P is probably a little more advanced and left to the foreman or BMW North America to do remotely.

 

[CuriousGeorge]

The recall is for the faulty BMS, and I would guess losing module voltage data (hence voltage overcharge or sudden loss of power). In regards to the 30%, that would be the standard transport mode SoC so there's probably code to be reused. I haven't seen how they drain the battery but I'd imagine it's a slow bleed of running the HV battery cooling system.


As for dealerships, they need to have their ISTA/D & ISTA/P systems updated in order to do the reprogramming. ISTA/D can only do ALL the modules so it takes forever. ISTA/P is probably a little more advanced and left to the foreman or BMW North America to do remotely.

How do you know all these things?

You don't have to answer that, I am always just impressed by the apparent depth of your knowledge ("apparent" only because it's completely outside my area of expertise).

Anyway, if what you're saying is correct, then that's good news, as it means that there is really nothing wrong with the battery itself, just how it is being managed.

 

[SameGuy]

The tech drove my car away at 7:10 AM and it was out of the car wash at 10 AM. Apparently the basic scope inspection takes only about 15 minutes, including the brake fluid flush, so probably 2 hours for the update. The repair order has a gross time of two hours and 36 minutes for everything, including fluids, cabin filter, and changing the wipers as I requested (not comped, unfortunately). The "recall" part of it isn't very descriptive:

CAMPAGNE DE RAPPEL/ 10061750800 M619024RC F56 BEV PROGRAMCONTRÔLE

UNITS (SME )

61BMZZ99 CAMPAGNE DE RAPREL 10061750800

M619024RC F56 BEV PROGRAMCONTRÔLE UNITS

"Campagne de rappel" is French for "recall campaign."

Oh, yeah the screen grabs I took of all the modules in BimmerCode came in handy, as I had to redo it all. I had to refer to one of my own posts to redo the rear fog lights in Expert Mode. Probably 30 minutes altogether, thanks to the speedy ENET cable connection. I can report that the Anker USB-C-to-Ethernet dongle I ordered when I got my iPhone 15 Pro Max works fine.

 

[pictsidhe]

Wow, randomly checked the forum tonight and found our SE is affected. I remember checking the VIN a couple months back for something else on the forum related to the traction battery?

It's been sitting unattended out of state for months. Good thing we left it at 40% SoC based on the revised 2023+ manual. It always bothered me that the SE had no charge limit and a similar top buffer to other cars, with instructions to keep it plugged in at all times, when virtually all other EVs of this chemistry (including new BMWs) do not follow that scheme.

I went out of country and my car was not driven for 5 weeks. I left it at 61%, which seemed a good level to me. It was at 60% when I returned. I checked it a few times on the app in case I needed to ask my cat sitter to add charge. A Tesla would be completely flat...
The software update sounds like a precautionary safety routine has been added to detect the water ingress fault and discharge the battery to a safe level to avoid a Chernobyl incident. Uhh, 'thermal event'. I had my software reflashed pretty recently to hopefully deal with some weird charging glitches. I haven't redone bimmercode, yet...

 

[SameGuy]

Now, who wants to hold my hand and teach me Esys?

 

[fishbert]

The recall is for the faulty BMS, and I would guess losing module voltage data (hence voltage overcharge or sudden loss of power).

It’s a battery issue, not a faulty battery management system. The recall report says the vehicles “were manufactured with a high voltage battery that may not have been produced according to specifications.”

The resolution updates the BMS (SME in BMWese) because that’s what you'd use to detect a fault and discharge the battery, not because the BMS itself is faulty. They’re not replacing batteries because (I can only assume) batteries are really expensive.

 

[fishbert]

Also the protocol really doesn't make sense. So once this happens the car or battery is a labeled a dud and they take it back? Can't imagine any other circumstance.

Yeah, nowhere does the recall remedy claim to prevent anything; only to discharge the battery if a malfunction is detected. But hey, maybe then the fire won’t take as long to burn itself out.

 

[Rexsio]

The recall is for the faulty BMS, and I would guess losing module voltage data (hence voltage overcharge or sudden loss of power). In regards to the 30%, that would be the standard transport mode SoC so there's probably code to be reused. I haven't seen how they drain the battery but I'd imagine it's a slow bleed of running the HV battery cooling system.


As for dealerships, they need to have their ISTA/D & ISTA/P systems updated in order to do the reprogramming. ISTA/D can only do ALL the modules so it takes forever. ISTA/P is probably a little more advanced and left to the foreman or BMW North America to do remotely.

As I’m reading all those post I’m very disappointed as no one can explain what is going on with HV battery in case as Chernobyl reaction as we drive through a waters and a seals are not sufficient in 128 cases and batteries can have a water there what is going there with wet cells as dealers are going to replace a sills adding new glue NHTSA call for fires dead SE on a highways and what happened in my garage if that reaction occurred . New fix to drain HV battery to 30% is not going to happen in split seconds with running heaters / open windows as some wizards suggested if battery is on fire like one member@ Puppethead suggest just run as far you can and to discharge a HV battery in split second you need a copper ground rods witch play a crucial role in ensuring that electrical energy is properly redirected.Something that is important during electrical surges by providing a seamless low resistance path into earth,the axess energy flow to the ground . My solar panels system on roof on my house have copper rod install as a prevention of to discharge a surge of current .And this 30 %discharge HV battery from SE to nowhere is a negligence as a technical malpractice.As a joke I’m installing copper rod in my garage after dealer fix my SE HV battery Chernobyl meltdown . My appointment from Friday Aug 30 was rescheduled by dealer to Monday September 2 but stupid was a holiday .Now is September 3 to fix my SE HV battery

 

[teslarati97]

It’s a battery issue, not a faulty battery management system. The recall report says the vehicles “were manufactured with a high voltage battery that may not have been produced according to specifications.”

The resolution updates the BMS (SME in BMWese) because that’s what you'd use to detect a fault and discharge the battery, not because the BMS itself is faulty. They’re not replacing batteries because (I can only assume) batteries are really expensive.

This lends itself to a very interesting discussion regarding a high voltage battery (NHTSA Recall 24V-612). Since one F56 BEV HV battery pack/module is 8 cells (16 for the double), a nominal cell voltage of 4.15V would imply 33.2V of the single module is high voltage. Is the high voltage battery a collection of 2 single modules (8 cells) and a 5 double modules (16)? Does the HV battery include everything in the HV battery housing?

What is the root cause of the isolation fault?? My mind is blown...

 

[Rexsio]

This lends itself to a very interesting discussion regarding a high voltage battery (NHTSA Recall 24V-612). Since one F56 BEV HV battery pack/module is 8 cells (16 for the double), a nominal cell voltage of 4.15V would imply 33.2V of the single module is high voltage. Is the high voltage battery a collection of 2 single modules (8 cells) and a 5 double modules (16)? Does the HV battery include everything in the HV battery housing?

What is the root cause of the isolation fault?? My mind is blown...

As you the smartest guy on forum can you slow down with your Ph.D approach

and try to explain in simple language to members when they don’t know how to do change a wipers

 

[SameGuy]

I'd still like to know where they dump all the electrons. Mercedes shop foreman neighbor says when they need to discharge, they turn everything on, including any heating circuits available in the car; there are XENTRY tools that disable any timeouts and occupancy sensors. An EQS can take eight to 12 hours to discharge.

 

[SameGuy]

Anyway, if what you're saying is correct, then that's good news, as it means that there is really nothing wrong with the battery itself

I think it means that they know the odds of a faulty battery are really, really long. Still not zero chance, but I kind of like my odds.

I'm also starting to think that this update to the BMS, if it detects a fault before a thermal event, doesn't allow the battery to be charged at all, until it eventually gets down below that 30%, by which time hopefully the owner will have brought it in for safe handling at the dealership.

 

[Rexsio]

This lends itself to a very interesting discussion regarding a high voltage battery (NHTSA Recall 24V-612). Since one F56 BEV HV battery pack/module is 8 cells (16 for the double), a nominal cell voltage of 4.15V would imply 33.2V of the single module is high voltage. Is the high voltage battery a collection of 2 single modules (8 cells) and a 5 double modules (16)? Does the HV battery include everything in the HV battery housing?

What is the root cause of the isolation fault?? My mind is blown...

Maybe water penetrating batteries of seals moisture HV battery’s as my solar system dewenloped similar isuess as my electrician tried to checked my system take down all system as I refused and all system work correctly after 10 years as I monitor a system on apps dealers are making big money $$$ by all involved in skim

 

[Rexsio]

I think it means that they know the odds of a faulty battery are really, really long. Still not zero chance, but I kind of like my odds.

I'm also starting to think that this update to the BMS, if it detects a fault before a thermal event, doesn't allow the battery to be charged at all, until it eventually gets down below that 30%, by which time hopefully the owner will have brought it in for safe handling at the dealership.

Who come up with 30 % battery discharge if is thermal runaway doesn’t matter of your battery status is A FIRE Period.I like this game bc no manufactures or dealers making any statement what is all about it as they play stupid to a point as I burn my HOUSE

 

[MrSnrub]

If more than 2 end up on fire, they might have to replace all of our batteries, just like Chevy did.

My car is effected by the recall I got the letter in the mail

My neighbour just had his 80% limit unlocked after almost 2 years in the bolt... My friend is a Gold Level tech at Porsche and they do Taycan battery repairs in house now, before any repair is started they are to pressurise the pack and check for leaks

 

[MrSnrub]

Booked appointment via app for Sept 10