Why won’t my 540i battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you’ve been leaving the doors slightly 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 do you do with my old 540i battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for BMW 540is?

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?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

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

The white, crusty stuff that can accumulate around 540i car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

What do I do about corrosion on my 540i car battery?

Regularly inspecting and cleaning your battery terminals will help keep your 540i’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I purchase 540i batteries near me?

You can shop for 540i batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

2018 BMW 540i Car Batteries

Get a New BMW Battery

Get a Battery for Your BMW 540i

Don’t let a dead battery stop you. Shop replacement car batteries for your 2018 BMW 540i at Firestone Complete Auto Care.

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Battery Size & Replacement for 2018 BMW 540i

Not sure what battery to get 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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Buy the Right Battery for Your 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. The average car battery lasts three to five years. You want to replace your 2018 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 battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all signal that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 2018 BMW 540i. Car batteries are only one of our many strong suits. Our technicians are familiar with BMW-specific recommendations for 540i car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Find the Right DieHard Battery for Your 540i

We only want what’s best for your BMW 540i, which is why we carry just that. You need a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using state-of-the-art advancements to meet the increasing power needs of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your BMW 540i and get behind the wheel with confidence. Why? Because performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New BMW 540i Battery

Got a new car battery installed in your 2018 BMW 540i? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. You can take care of your battery by limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your 540i Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 540i-specific battery question, visit your nearest store. Our technicians are happy to help.

Why won’t my 540i battery hold a charge? A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you’ve been leaving the doors slightly 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 do you do with my old 540i battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for BMW 540is? 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? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
What is the white, crusty substance accumulating on my 540i’s battery post? The white, crusty stuff that can accumulate around 540i car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
What do I do about corrosion on my 540i car battery? Regularly inspecting and cleaning your battery terminals will help keep your 540i’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
Where can I purchase 540i batteries near me? You can shop for 540i batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.