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Old Jan 10, 2023 | 05:21 PM
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JZK26's Avatar
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2023 AMG EQS
Starter battery

I know there has been at least one earlier (old) post about this but it did not include a resolution so wanted to see if anyone had any new ideas.

I suddenly got a pop up from the app and an automated email that the starter battery is critical. Note: car was not sitting idling for a long time, it was driven normally just last night, and the temp is in the 70s. Main battery charge was 40%.

Went to the garage to try starting the car. Would not start. Electronics (and even AC came in), but I did not get "ready to drive" and would not shift gears. Switched back off. Then in again - everything works.

Any idea how to avoid this in the future? Or what to do when this happens? For good measure, I'm now at a starting station charging the car, but I don't feel confident this won't happen again regardless of charge level of main battery.
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Old Jan 10, 2023 | 06:21 PM
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2019 SL550/2023 EQS 580 SUV
Consider reporting this to a local MB dealership even if it doesn’t happen again. If enough folks report this happening Mercedes will look for a fix. If enough folks do not report this they will not consider it a fault.
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Old Jan 12, 2023 | 01:15 PM
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From: Irvine, CA
2023 EQS 580 4Matic SUV
Originally Posted by JZK26
I know there has been at least one earlier (old) post about this but it did not include a resolution so wanted to see if anyone had any new ideas.

I suddenly got a pop up from the app and an automated email that the starter battery is critical. Note: car was not sitting idling for a long time, it was driven normally just last night, and the temp is in the 70s. Main battery charge was 40%.

Went to the garage to try starting the car. Would not start. Electronics (and even AC came in), but I did not get "ready to drive" and would not shift gears. Switched back off. Then in again - everything works.

Any idea how to avoid this in the future? Or what to do when this happens? For good measure, I'm now at a starting station charging the car, but I don't feel confident this won't happen again regardless of charge level of main battery.
I have the same messages sent to my phone several times when my SUV was getting the front end wrapped in PPF. They found out how to open the hood and hooked up a trickle charger to it while they do the work.
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Old Jan 12, 2023 | 11:25 PM
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2022 Taycan GTS, 2023 EQS580 SUV, 2023 EQS580 sedan
I got same message Mercedes me connect: Battery Monitor – Charge Status Critical one time via Mercedes me app and email too during wrapping my car last week.
shop said two-three weeks ago another white EQS580 SUV got same message too and they hooked up a charger too.

Last edited by guess2098; Jan 13, 2023 at 01:53 PM.
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Old Jan 14, 2023 | 07:03 AM
  #5  
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I posted on another thread that I had this error once and MB has a fix and software update for it. Take it to your dealer.

https://mbworld.org/forums/eqs-suv/856768-eqs-580-suv-periodic-electronic-failure-2.html#post8701887

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