Why won't my 840Ci battery stay charged?

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

What happens to my old 840Ci battery?

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

How much do DieHard batteries cost for your BMW 840Ci?

You can find affordable 840Ci 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?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

Why is there white, crusty buildup on my 840Ci’s battery post?

The white, flaky stuff that can build up around your 840Ci’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 840Ci, 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 840Ci 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 840Ci 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 840Ci batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 840Ci 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.

1994 BMW 840Ci Batteries

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Get a New BMW 840Ci Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1994 BMW 840Cis today and schedule a quick installation at Firestone Complete Auto Care.

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1994 BMW 840Ci Battery Replacement & Size

Not sure what battery to get for your BMW 840Ci? Check the chart to find the right car battery size and cold cranking amps for your 840Ci.

Battery	Engine	Warranty		Cold Cranking Amps
T8	V8/4.0L	Replacement 36 months	Performance months	800

BATTERIES
V8/4.0L - Battery: T8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800

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Shopping for BMW 840Ci Car Batteries

Your 840Ci doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your BMW 840Ci stranded. Pay attention to clues that your battery is on its way out. A lagging starter, an illuminated check engine light or battery signal, bloated battery case, corroded battery terminals, or dim headlights can all signal that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 1994 BMW 840Ci. Car batteries are one of our many specialties! Our expert technicians understand BMW service recommendations for 840Ci 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.

Is There a DieHard Battery for 840Cis?

Your BMW 840Ci deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your 840Ci needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries go above and beyond and house the latest technology to fuel the increasing power requirements of new vehicles. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your 840Ci and get behind the wheel with confidence. Why? Because performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New BMW 840Ci Battery

Got a new car battery installed in your 1994 BMW 840Ci? Congrats! 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, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your 840Ci Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 840Ci-specific battery question, visit your nearest store. Our technicians are happy to help.

Why won't my 840Ci battery stay charged? A car battery that needs to be jump-started every time is as good as dead. It may be getting old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
What happens to my old 840Ci battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your BMW 840Ci? You can find affordable 840Ci 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? You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.
Why is there white, crusty buildup on my 840Ci’s battery post? The white, flaky stuff that can build up around your 840Ci’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 840Ci, 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 840Ci 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 840Ci 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 840Ci batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 840Ci 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.