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2024 GLC43 Mbux software update issue

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Old Apr 23, 2026 | 01:14 PM
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2024 GLC43
2024 GLC43 Mbux software update issue

Hello all,

Not sure if anyone knows why but MBUX keeps prompting me to update to the newest version for the central display but nothing happens when I lock door and it starts installing. Seems like it never really completes after car is turned off even though I follow instructions on screen.
This is happening for the past week but not sure what I need to do different ?

Thanks



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Old Apr 23, 2026 | 07:12 PM
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2024 GLC43
Originally Posted by aviator787
Hello all,

Not sure if anyone knows why but MBUX keeps prompting me to update to the newest version for the central display but nothing happens when I lock door and it starts installing. Seems like it never really completes after car is turned off even though I follow instructions on screen.
This is happening for the past week but not sure what I need to do different ?

Thanks

When I lock car it says Ongoing installation but never really installs as I keep getting message to install after every restart . Annoying
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Old Apr 23, 2026 | 07:55 PM
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Sorry not good answer but 120 min seems like a very long time. When you park it can the vehicle make a connection...meaning you are not ins a garage down 4 stories.
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Old Apr 23, 2026 | 08:36 PM
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Very strange 120 mins is indeed a very long update and the car is outside . So I guess it cannot seem to connect to the cloud to do the update then
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Old Apr 24, 2026 | 12:19 AM
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Try using home wifi for the update.
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Old Apr 24, 2026 | 07:27 AM
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Originally Posted by W205C43PFL
Try using home wifi for the update.
Will try that but ridiculous that we have to proceed this way..MB should get their act straight
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Old Apr 24, 2026 | 08:58 AM
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Originally Posted by aviator787
Will try that but ridiculous that we have to proceed this way..MB should get their act straight
I forgot which provider they used, before they used Verizon they might had changed that now, so it depends on those carriers as well.
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Old Apr 24, 2026 | 02:06 PM
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W124
It might be that the car has low voltage in the battery and is not able to proceed with the update.

Try taking your car to your local dealer/workshop to see if they can run a diagnosis on the car before installing the update to not risk any corruption to the head unit
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Old Apr 24, 2026 | 02:47 PM
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Originally Posted by DavidIlie
It might be that the car has low voltage in the battery and is not able to proceed with the update.

Try taking your car to your local dealer/workshop to see if they can run a diagnosis on the car before installing the update to not risk any corruption to the head unit
When looking at battery it says charged constantly . Not sure what is preventing it from doing the update .

Anyways will take it to the dealer
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Old Apr 24, 2026 | 03:22 PM
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Best thing you can do
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Old Apr 26, 2026 | 04:25 PM
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Originally Posted by DavidIlie
Best thing you can do
Strange bug no matter what I do ... it just doesn't download and install and keeps promoting me at every start.
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Old Apr 26, 2026 | 05:32 PM
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W124
If you get your hands on a ENET cable, I'd be happy to perform a diagnosis on your car remotely using official software. Perhaps any other codings too you might want.

https://mbretrofit.it/guides/vehicle...i#where-to-buy
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Old Apr 27, 2026 | 01:32 PM
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Update just succeeded without taking to dealer. Very glitchy software updates indeed
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Old Apr 27, 2026 | 02:52 PM
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Originally Posted by aviator787
Update just succeeded without taking to dealer. Very glitchy software updates indeed
That is a happy ending, did you have to use home wifi at all?
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Old Apr 27, 2026 | 02:56 PM
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Originally Posted by W205C43PFL
That is a happy ending, did you have to use home wifi at all?
Not at all ... I just randomly started the car and chose to perform update again although I noticed it said only 10 mins for the update rather then 130 mins , then locked the car ..

the time needed was more before except this time so very weird
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Old Apr 27, 2026 | 04:30 PM
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Originally Posted by aviator787
Not at all ... I just randomly started the car and chose to perform update again although I noticed it said only 10 mins for the update rather then 130 mins , then locked the car ..

the time needed was more before except this time so very weird
Gotcha...
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