C-Class (W206) 2021 to

OTA Update for Door Module?

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Old Jan 22, 2025 | 03:17 AM
  #1  
818benz's Avatar
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From: SFV
2025 C300
OTA Update for Door Module?

Today I noticed one of my w206s had an OTA update available for the app. Unlike past updates, there is no arrow to tap and read a description of the update. Does anyone know what's changed?

The update is only available on my 2023 and not my 2022.

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Old Jan 23, 2025 | 05:52 PM
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2025 C300 4Matic Blk/Blk
I do not show an update for my 2025 W206
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Old Feb 10, 2025 | 07:21 PM
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2026 GLC300
I got the prompt on the main MBUX screen yesterday morning saying that I needed to install the update.
Instructed to click "Install Now", exit the vehicle and lock the doors.
When I got back to the car, there was a message saying the update had installed successfully.

The only explanation is that it will optimize the behavior of the control unit when the car is parked.
I have no idea what the control unit is or what is changed.
I only hope that it prevents the occasional notification that I get when the car is in the garage saying that the 12V battery is critically low.
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Old Feb 10, 2025 | 09:41 PM
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W206 C43
I had this update carried out directly at the dealership late last year. It relates to the door modules not going to sleep and causing the 12V battery to drain.
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Old Feb 11, 2025 | 01:40 AM
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From: SFV
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Originally Posted by AMPERAGE
I had this update carried out directly at the dealership late last year. It relates to the door modules not going to sleep and causing the 12V battery to drain.
Good to know, thanks for the insight!
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Old Feb 11, 2025 | 02:00 PM
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Originally Posted by AMPERAGE
I had this update carried out directly at the dealership late last year. It relates to the door modules not going to sleep and causing the 12V battery to drain.
Exactly what I was hoping for.

Thanks!
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Old Feb 11, 2025 | 02:01 PM
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I had the battery drainage problem, and it was solved with a dealer installed update, not OTA


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Old Feb 11, 2025 | 06:33 PM
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W206 C43
I've included the snip below from my service report which details what was upgraded at the dealership. Hopefully this update is what's being pushed OTA, but I'm not sure if there's an easy way to confirm.


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