Why won’t my 525i battery hold a charge?

A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop by for a free battery test at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old 525i battery?

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

What’s the cost of DieHard batteries for BMW 525is?

Get affordable prices on BMW 525i batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

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.

Why is there white, flaky stuff around my 525i’s battery post?

If you notice white, crusty stuff around the battery terminals of your 525i, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 525i’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I clean a corroded 525i battery terminal?

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 525i?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install 525i batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

2003 BMW 525i Car Batteries

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Get a Battery for Your BMW 525i

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 BMW 525i at Firestone Complete Auto Care.

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2003 BMW 525i Battery Replacement & Size

Not sure what battery to get for your BMW 525i? Use this chart to find the right battery size and CCAs for your BMW 525i.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	L6/2.5L	Replacement 24 months	Performance months	825
49H8	L6/2.5L	Replacement 36 months	Performance months	900
H7-AGM	L6/2.5L	Replacement 36 months	Performance months	850

BATTERIES
L6/2.5L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
L6/2.5L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
L6/2.5L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Shopping for BMW 525i Car Batteries

Sadly, your BMW 525i won't last forever. Neither will its battery. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your BMW 525i stranded. Pay attention to clues that your battery is on its way out. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, or weak lights may all indicate that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 2003 BMW 525i running! Car batteries are one of our many specialties! Our technicians are well-acquainted with BMW’s service specs for 525i battery cold cranking amps and reserve capacity. Get help figuring out the battery size that's best for your 525i, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your 525i?

We know what’s best for your BMW 525i, which is why we only carry top-of-the-line replacement parts and batteries. Your 525i needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using state-of-the-art advancements to fuel the increasing power requirements of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your 525i and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2003 BMW 525i Battery

Did you recently have a new 2003 BMW 525i car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.