My 2025 Mercedes AMG GT 55 has the dashcam option, but Guard 360 was not on the Window sticker. Can I add it now, despite it not being added as a factory option?

I heard it might just be a software update, or something I can buy via Mercedes.me

I'm in the same boat (have dashcam but not Guard 360) and it's not an option via Mercedes.me to upgrade. Not sure if there is another way to add it through a dealership, but I will definitely do it if you find out a way.

The option is so inexpensive, I have to believe it is just a software toggle in the onboard computer somewhere. For how little they charge for that option, it cannot be any additional labor on the assembly line. All the parts needed should already be installed on all the cars.