“Auxiliary battery malfunction” S550
10

Asked by Guru9Y5HGM Jan 26, 2021 at 02:10 PM about the Mercedes-Benz 500-Class

Question type: Maintenance & Repair

getting the message “Auxiliary battery malfunction”
And the car does not start although it got a new primary car battery
Model S550
Year 2010

1 Answer
10

Guru9Y5HGM answered 3 years ago

Apparently the main battery was no good (although was new) and needed to be replaced and that solved the issue.

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