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And keep in mind that battery already has latent damage from the low charge state so consider replacing it ... lest this gibberish happens again
(i went through that crap!)
 

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My car shut down in traffic twice with the do not shift gears error, Mercedes is telling me its - AUX BATTERY MALFUNCTION. I need another battery. I'm praying this fixes the issue.
66748
no
 

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This is starting to happen to me as well. The car starts right back up after shutting down and getting the message.

I have the 2015 CLA sport


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