How much charge is enough for OTA update?
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 71
Likes: 21
2025 E53 AMG & 2024 EQS SUV
How much charge is enough for OTA update?
My 2024 EQS SUV has not been able to get any OTA updates since September! The battery is at 70-80% and it still says it may not be sufficiently charged. Have you had any experience with this issue? Have you been able to get updates?
Thanks.
Thanks.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
It's your 12V battery, not the high voltage battery. All our SUVs had this eventually, and all needed the 12V replaced. Update worked just fine after it was replaced under warranty.
Junior Member
Joined: Oct 2012
Posts: 72
Likes: 24
From: Northern California
2024 EQE 350 4Matic, BMW i3
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Appears to be the case. 2 years for us, but close enough. I suspect either there was a bad batch of batteries that affected cars near the same production date, or there was something about how the DC/DC converter operated that has needed updating. If I recall, there have been updates to the 12V management system.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
From what many owners report, OTA updates often require the battery to be above 80 percent and the vehicle to be parked and locked for a while. A stable internet connection also matters. It may help to charge closer to full and try overnight. If it still fails, a dealer software check could be necessary.
