Why won’t my M240i battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old M240i battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for BMW M240is?

You can find affordable M240i 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 do car batteries last?

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 M240i’s battery post?

The white, crusty stuff that can accumulate around M240i 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.

How do I remove corrosion from my M240i car 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 purchase M240i batteries near me?

Your local Firestone Complete Auto Care sells and installs M240i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2021 BMW M240i Car Batteries

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BMW M240i Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2021 BMW M240i today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2021 BMW M240i

Researching battery replacements for your BMW M240i? Check the chart to find the right car battery size and cold cranking amps for your M240i.

Battery	Engine	Warranty		Cold Cranking Amps
H7-AGM	L6/3.0L	Replacement 36 months	Performance months	850

BATTERIES
L6/3.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buy the Right Battery for Your BMW M240i

Your M240i doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Don’t get stranded by your M240i’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A sluggish engine start, a blinking battery or check engine light, swollen battery case, corroded battery terminals, or faded headlights may all indicate that your battery is on its last leg.

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. Visit us for a complimentary battery check and, if needed, a replacement battery for your 2021 BMW M240i. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with BMW’s service specs for M240i car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Why Choose a DieHard Battery for Your M240i?

We know what’s best for your BMW M240i, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries go above and beyond using state-of-the-art advancements to meet the increasing power demands of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your M240i 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 M240i Battery

Did you recently have a new 2021 BMW M240i car battery installed? Great job! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your M240i Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have battery questions that are BMW M240i-specific, visit your nearest store. Our technicians have the answers.

Why won’t my M240i battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop by for a complimentary battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old M240i battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for BMW M240is? You can find affordable M240i 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 do car batteries last? 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 M240i’s battery post? The white, crusty stuff that can accumulate around M240i 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.
How do I remove corrosion from my M240i car 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 purchase M240i batteries near me? Your local Firestone Complete Auto Care sells and installs M240i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.