Where is the battery located in a Mercedes ML350?

2 Answers
ElijahFitz
09/06/25 8:24am
The battery of the Mercedes ML350 is located under the front passenger seat. To access it, move the seat fully forward or backward, then remove the cover panel to reveal two batteries: a main battery for starting and general driving needs, and a secondary battery for the electronic gear shift. Below are some important notes regarding the battery usage in the Mercedes ML350: 1. Do not disconnect the battery during replacement, as this may lock the vehicle's computer system, putting it into sleep mode. 2. To maintain continuous power supply, ensure the new battery is fully charged before replacement. Use a bridging method by connecting the old and new batteries in parallel with jumper cables before removing the old one. Be cautious not to connect the positive terminal to the car body during replacement, as this could cause a short circuit.
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LondonLee
09/18/25 7:57am
The battery of my Mercedes-Benz ML350 is located under the trunk floor. Just lift that plastic cover, and you'll usually find it lying near the spare tire. I initially thought it was in the engine bay and searched for a long time without success, only to realize later when I opened the trunk myself. Mercedes designed it this way quite conveniently—SUV front space is limited, so placing the battery in the rear balances weight and prevents collision damage. When replacing or inspecting the battery, be careful not to scratch the interior with tools; wearing gloves is recommended for safer operation. Now, I make it a habit to check monthly for any corrosion or loose terminals to avoid sudden starting issues, especially in cold weather when battery performance drops quickly. Proper maintenance can help it last a few more years.
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