[unfinedandunfiltered]

Hi everyone,

Went to get in my 8k mile 22 pre-LCI M340i today and the doors wouldn’t unlock. The alarm also went off for a while.

After unlocking with the valet key there was no power to anything and no result when trying the dead key fob battery start protocol.

Got the car jumped by BMW Roadside Assistance and drove it for 30 minutes, noticing some odd stuff during the drive.

-Turn signals work but no sound.

-Emergency Call failed warning.

-No climate control on led display but seemed to randomly be blowing some heat at my feet.

-Nav screen inaccurate and all over the place.

-Torque and HP meter on sport display pinned continuously, and showing odd measurements (max hp 48?)

-Driving Assistance reduced warning.

-Idrive controller unreliable and often unresponsive. Buttons around it inop.

-Radio inputs inop.

I’m sure I’m forgetting some things too but the whole experience was strange.

I’ve got to say that I’m pretty disappointed that my 8 month old car stranded me like this. There was nothing plugged in to the car that could drain the battery, all that ever gets plugged into it is an iPhone which was not plugged in while it was parked. Lights always left on automatic.

I’m taking it to the dealer tomorrow, anything I should know?

[G22b58]

For how long was it parked?

[unfinedandunfiltered]

It was parked for about 9 hours.

Took it in to the dealer today and they claimed a “known software issue that does not allow the transmission to go into sleep mode.” This apparently drains the battery.

They charged the battery, reset everything and
updated the software. So far so good but we’ll see how it is in the coming days/week.

[AM340iMiami]

That sucks.

Get yourself one of these things so you are not waiting on BMW Roadside to jump you car.

https://www.amazon.com/dp/B0BGMXV56F...roduct_details

[ramparts]

Originally Posted by unfinedandunfiltered

Hi everyone,

Went to get in my 8k mile 22 pre-LCI M340i today and the doors wouldn’t unlock. The alarm also went off for a while.

After unlocking with the valet key there was no power to anything and no result when trying the dead key fob battery start protocol.

Got the car jumped by BMW Roadside Assistance and drove it for 30 minutes, noticing some odd stuff during the drive.

-Turn signals work but no sound.

-Emergency Call failed warning.

-No climate control on led display but seemed to randomly be blowing some heat at my feet.

-Nav screen inaccurate and all over the place.

-Torque and HP meter on sport display pinned continuously, and showing odd measurements (max hp 48?)

-Driving Assistance reduced warning.

-Idrive controller unreliable and often unresponsive. Buttons around it inop.

-Radio inputs inop.

I’m sure I’m forgetting some things too but the whole experience was strange.

I’ve got to say that I’m pretty disappointed that my 8 month old car stranded me like this. There was nothing plugged in to the car that could drain the battery, all that ever gets plugged into it is an iPhone which was not plugged in while it was parked. Lights always left on automatic.

I’m taking it to the dealer tomorrow, anything I should know?

Yup, it was an issue in 22-11-520 -> 22-11-537, which mean a couple of ECUs wouldn't sleep.

I know as it happened to me, and my car was the one that started the repair case !
Fixed with a charge, and a software update, so if anyone has an istep between these numbersk, get updated asap before you get strandard

[unfinedandunfiltered]

Guess I’m glad it wasn’t just me, but still, pretty lame on such a new and $$$ machine.

[Mark729]

I had a similar experience.
I got a 2021 m340i xdrive just little over 34,000 miles on it.
As usual, I approached the car after work, but comfort access did not work so I took out the key fob and unlocked it, but it didn't work either.
I manually opened the door and started it with a jump cable.
It seemed like battery was completely dead and CEL light was on.
I connected to bimmerlink and it said battery state of charge was 90%. WTH?

I went to the dealer the next day, and the battery was changed to a new one under warranty due to low voltage. That was about a month ago.

And same thing happened today.
no comfort access, no unlock by key fob so I opened it manually and started it with the jump cable and got a message saying the rear axle differential lock, but it disappeared when I restarted it.
now my warranty ended last week.

I will carry a portable jump starter from tomorrow.

[ramparts]

Originally Posted by Mark729

I had a similar experience.
I got a 2021 m340i xdrive just little over 34,000 miles on it.
As usual, I approached the car after work, but comfort access did not work so I took out the key fob and unlocked it, but it didn't work either.
I manually opened the door and started it with a jump cable.
It seemed like battery was completely dead and CEL light was on.
I connected to bimmerlink and it said battery state of charge was 90%. WTH?

I went to the dealer the next day, and the battery was changed to a new one under warranty due to low voltage. That was about a month ago.

And same thing happened today.
no comfort access, no unlock by key fob so I opened it manually and started it with the jump cable and got a message saying the rear axle differential lock, but it disappeared when I restarted it.
now my warranty ended last week.

I will carry a portable jump starter from tomorrow.

Did they update the software ( it’s a known fault ! ) when they did the battery?

If not , and the same fault same happened a month later , you should still be able to claim on warranty as you brought it to their attention before hand