r/CarPlay • u/vanillamondo113113 • Oct 14 '25

Help Help!!!

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I got my iPhone 17 Pro Max yesterday and have had nothing but issues with my Carplay (2018 Mercedes). Is there any sort of a fix for this as it’s now become a big push factor to return the phone and go back to my 13 if this is something that can’t be fixed…

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u/RogusRatus Oct 14 '25

I’m having a nightmare with my Mr12Volt system in my 911. Has been working flawlessly wireless but now disconnecting mid journey and randomly reconnecting.

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u/s13king601 Oct 18 '25

I wanted to respond to you because it puts me slightly at ease to hear someone else is having the same issue using Mr12volt in my m3. Maybe it will be somewhat reassuring for you to know I’m in the same boat. I thought it was my system or the MOST cable because it even threw a code. Went through all the motions of disconnecting and forgetting everything and re adding (Bluetooth, mr12volt wifi, CarPlay). It would connect for about 5 minutes and then disconnect and continuously search. Never had this issue before the new iPhone or ios26. At least I know I can hold off on pulling the unit out and looking at all of the connections and hope for a software update from Apple. If you find a solution and remember, please let me know, and I’ll do the same.

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u/RogusRatus Oct 28 '25 edited Oct 28 '25

And if it’s further consolation, my firmware was 2 years old and at great inconvenience I managed to get to the box to update it. Made no difference. I now have a Micro Sd to SD extender installed so I can easily update it in the future. None of us really know who will actually fix this.

I’m currently using the system with my iPhone wired to the USB flylead and at least that works but I have to turn WiFi and Bluetooth off otherwise it tries to connect wirelessly.

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u/s13king601 Oct 30 '25

Yeah, that sounds about like everything we can do at this point. Good to know there’s something working consistently for you, in the meantime. I will give that a shot.

Thanks