Why doesn’t my 540i battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you’ve been leaving the doors slightly open and the dome lights on during the 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 540i battery?

We’ll recycle your car battery for you!

How much will replacing my BMW 540i’s battery cost if I get a DieHard battery?

Get affordable prices on BMW 540i 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 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.

Why is there white, flaky stuff around my 540i’s battery post?

The white, flaky stuff that can build up around your 540i’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your 540i, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

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

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 540i owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.

Who carries 540i batteries near me?

Your local Firestone Complete Auto Care sells and installs 540i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

Car Batteries for 2002 BMW 540i

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Get a New BMW 540i Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2002 BMW 540i today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2002 BMW 540i

Need more info about BMW 540i batteries? Use this chart to find the right battery size and CCAs for your BMW 540i.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V8/4.4L	Replacement 24 months	Performance months	825
49H8	V8/4.4L	Replacement 36 months	Performance months	900
H8-AGM	V8/4.4L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.4L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V8/4.4L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V8/4.4L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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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 2002 BMW 540i battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corroded battery posts, or dim headlights can all be signs that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. 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, get your BMW 540i a replacement battery. Car batteries are one of our many specialties! Our expert technicians understand BMW service recommendations for 540i battery CCAs and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your 540i?

We only want what’s best for your BMW 540i, which is why we exclusively carry the best. You need a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries shatter expectations using state-of-the-art advancements to meet the growing power requirements of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your 540i and have the peace of mind that performance will be there when you're counting on it. That's the kind of battery we deliver.

After Buying 2002 BMW 540i Battery

Have you recently had a fresh battery installed in your BMW 540i? Good thinking! You can give your new battery a head start with proper care and attention. Give your new battery a hand by 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.

Commonly Asked 540i 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 doesn’t my 540i battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you’ve been leaving the doors slightly open and the dome lights on during the 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 540i battery? We’ll recycle your car battery for you!
How much will replacing my BMW 540i’s battery cost if I get a DieHard battery? Get affordable prices on BMW 540i 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 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.
Why is there white, flaky stuff around my 540i’s battery post? The white, flaky stuff that can build up around your 540i’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your 540i, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
What do I do about corrosion on my 540i car battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 540i owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
Who carries 540i batteries near me? Your local Firestone Complete Auto Care sells and installs 540i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.