SL-Class (R232) Discussion on the 2022 R232

SL/R232: Update Won’t Install

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Old Feb 24, 2026 | 01:38 PM
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Dunga's Avatar
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'23 SL63 AMG, '24 Range Rover SE P400, ‘26 Corvette Z06, ‘25 Audi RS7 Performance
Update Won’t Install

Hey guys,

I was recently notified of an over the air update that further optimizes the 12v battery use. The car downloaded the update but will not install it for some reason. Has anyone seen this? I’m sure the dealer can do it but I’m trying to save myself a 2 hour round trip.


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Old Feb 25, 2026 | 03:08 PM
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2022 SL 55 AMG, 2020 AMG GT 53, 2015 GL 550
I actually came today to ask about this update. Which I will post in another thread. To answer your question I had the same update and it installed fine. I've never seen an update say deferred for a technical issue but my understanding is you need to be charged up pretty good so I would start there (trickle charge maybe). Then try again, especially if you don't drive the car often. If that still fails, it might be something to hae the dealer address.
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Old Mar 23, 2026 | 03:33 PM
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'23 SL63 AMG, '24 Range Rover SE P400, ‘26 Corvette Z06, ‘25 Audi RS7 Performance
Originally Posted by lexnoir
I actually came today to ask about this update. Which I will post in another thread. To answer your question I had the same update and it installed fine. I've never seen an update say deferred for a technical issue but my understanding is you need to be charged up pretty good so I would start there (trickle charge maybe). Then try again, especially if you don't drive the car often. If that still fails, it might be something to hae the dealer address.
I had been driving everyday since my daily had been at the shop. At the dealership now and they can’t figure out which update it is. They can get the car to tell them what update serial number it is so they can’t query it. They’re going system by system and getting updated.
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