Why won't my 540i battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old 540i battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much do DieHard batteries cost for your BMW 540i?

You can find affordable 540i batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

How long is a car battery good for?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

What is the white, crusty substance accumulating on my 540i’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your 540i car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean corrosion off my 540i vehicle battery?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Where can I find a battery for my 540i?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 540i batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.

Car Batteries for 2020 BMW 540i

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Get a New BMW 540i Battery

Don't let a failing battery slow you down. Shop replacement batteries for 2020 BMW 540is today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2020 BMW 540i

Researching battery replacements for your BMW 540i? Use this chart to find the right battery size and CCAs for your BMW 540i.

Battery	Engine	Warranty		Cold Cranking Amps
95R/H9	L6/3.0L	Replacement 36 months	Performance months	950
H5-AGM	L6/3.0L	Replacement 36 months	Performance months	680

BATTERIES
L6/3.0L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
L6/3.0L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680

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Buying a Replacement Battery for BMW 540i

You can pretty much drive your BMW 540i until you don't want to anymore. But your 540i's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. You want to replace your 2020 BMW 540i battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, or weak lights can all signal that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2020 BMW 540i running! Car batteries are only one of our many strong suits. Our expert technicians understand BMW service recommendations for 540i battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your 540i

We know what’s best for your BMW 540i, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard 540i batteries surpass expectations using the latest innovative technology to meet the growing power demands of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your BMW 540i and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New BMW 540i Battery

Did you recently have a new 2020 BMW 540i car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. turning off all of the lights when you leave your vehicle, limiting short trips, keeping your battery posts clean, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked 540i Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a battery question that's unique to your BMW 540i battery, pay us a visit. Our technicians are happy to help.

Why won't my 540i battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
What happens to my old 540i battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your BMW 540i? You can find affordable 540i batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.
How long is a car battery good for? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
What is the white, crusty substance accumulating on my 540i’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your 540i car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
How do I clean corrosion off my 540i vehicle battery? Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.
Where can I find a battery for my 540i? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 540i batteries at our stores nationwide — and our Firestone Direct mobile vans can provide convenient on-site battery services. Learn more about our mobile battery services and book an appointment.