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The 2015 Mercedes ML350 has an auxiliary battery located in the cargo area. You can access it by opening the panel in the cargo area. The battery is typically hidden behind a small panel that opens when you pull the handle. This auxiliary battery powers secondary accessories inside the car, while the main battery under the hood powers the car itself. If the auxiliary battery fails, you may experience issues with accessories like audio systems or lights. In Mercedes vehicles, auxiliary batteries typically have a lifespan of around 3 years.
The auxiliary battery in the 2015 Mercedes ML350 is situated beneath the cargo area floor.
I discovered a main battery, 850 Cold Cranking Amps, under the passenger seat in a 2015 ML 350. There doesn't seem to be an additional battery in sight, not even under the cargo space where the spare tire is usually found. I am receiving a warning about an issue with the auxiliary battery.
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