Why won’t my 500SEC 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 lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead 500SEC battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for Mercedes-Benz 500SECs?

Mercedes-Benz 500SEC batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes 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.

What is the white, crusty substance accumulating on my 500SEC’s battery post?

The white, flaky stuff that can build up around your 500SEC’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 500SEC, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

How do I remove corrosion from my 500SEC 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 500SEC 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.

Where can I purchase 500SEC batteries near me?

Your local Firestone Complete Auto Care sells and installs 500SEC batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1984 Mercedes-Benz 500SEC Car Batteries

Get a New Mercedes-Benz Battery

Get a New Mercedes-Benz 500SEC Battery

Don't let a failing battery slow you down. Shop replacement batteries for 1984 Mercedes-Benz 500SECs today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1984 Mercedes-Benz 500SEC

Need more info about Mercedes-Benz 500SEC batteries? Use this chart to find the right battery size and CCAs for your Mercedes-Benz 500SEC.

Battery	Engine	Warranty		Cold Cranking Amps
91-1	V8/5.0L	Replacement 24 months	Performance months	615
48H6	V8/5.0L	Replacement 36 months	Performance months	730
H6-AGM	V8/5.0L	Replacement 36 months	Performance months	760

BATTERIES
V8/5.0L - Battery: 91-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 615
V8/5.0L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
V8/5.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Shopping for Mercedes-Benz 500SEC Car Batteries

You can pretty much drive your Mercedes-Benz 500SEC until you don't want to anymore. But your 500SEC's battery? Don't count on it to last forever. The average car battery lasts three to five years. Don’t get stranded by your 500SEC’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A slow engine crank, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all signal that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 1984 Mercedes-Benz 500SEC running! Car batteries are one of our many specialties! Our technicians are familiar with Mercedes-Benz-specific recommendations for 500SEC battery CCAs and reserve capacity. Get help identifying the type and size of battery that's best for your 500SEC, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for 500SECs

We only want what’s best for your Mercedes-Benz 500SEC, which is why we only carry top-of-the-line replacement parts and batteries. You need a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond and house the latest technology to meet the expanding power needs of modern vehicles They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Mercedes-Benz 500SEC 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.

Making Your 500SEC’s New Battery Last

Have you recently had a fresh battery installed in your Mercedes-Benz 500SEC? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. Give your new battery a hand by limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked 500SEC Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Mercedes-Benz 500SEC battery, stop by your nearest store. Our technicians are happy to help.

Why won’t my 500SEC 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 lights on overnight. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead 500SEC battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for Mercedes-Benz 500SECs? Mercedes-Benz 500SEC batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes 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.
What is the white, crusty substance accumulating on my 500SEC’s battery post? The white, flaky stuff that can build up around your 500SEC’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 500SEC, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
How do I remove corrosion from my 500SEC 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 500SEC 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.
Where can I purchase 500SEC batteries near me? Your local Firestone Complete Auto Care sells and installs 500SEC batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.