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Where is the battery located in the BMW 5 Series?

2 Answers
KathrynLynn
07/29/25 8:42pm
The battery of the BMW 5 Series is located on the right side of the trunk, and it can be seen by opening the trunk cover. The car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Typically, the battery people refer to is a lead-acid battery, which is mainly made of lead and its oxides, with a sulfuric acid solution as the electrolyte. Taking the BMW 5 Series 2021 525Li Luxury Package as an example: it is a mid-to-large-sized car launched by BMW Brilliance, with a length, width, and height of 5106mm, 1868mm, and 1500mm respectively, a wheelbase of 3105mm, equipped with a 2.0T turbocharged engine, and matched with an 8-speed automatic manual transmission.
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DelHazel
08/14/25 6:01pm
As a long-time BMW 5 Series owner with 7-8 years of driving experience, I can confirm the battery is typically located in the trunk – hidden under the luggage compartment floor mat but fairly easy to locate. This intentional design addresses engine bay space constraints while improving weight distribution for better handling and cornering stability. During my first battery replacement, I discovered the straightforward process: simply lift the floor panel and disconnect the terminal caps (note: terminals loosen easily – wear gloves to prevent shocks). Position may vary by model year, but post-2010 versions mostly follow this layout. Regular maintenance involves checking for corrosion and keeping it away from heat sources to prolong lifespan. Pro tip: Keep the trunk clear of clutter for emergency jump-starts and carry a portable booster pack. Safety note: Always use manufacturer-specified batteries – amateur DIY attempts risk damaging electrical systems.
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