Why won't my SL500 battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.

What happens to my old SL500 battery?

We recycle it, taking care of both your car and the Earth.

How much do DieHard batteries cost for your Mercedes-Benz SL500?

Get affordable prices on Mercedes-Benz SL500 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?

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, crusty buildup on my SL500’s battery post?

The white, crusty stuff that can accumulate around SL500 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.

What do I do about corrosion on my SL500 car battery?

Regularly inspecting and cleaning your battery terminals will help keep your SL500’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Where can I find a battery for my SL500?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install SL500 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.

2004 Mercedes-Benz SL500 Batteries

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Get a Battery for Your Mercedes-Benz SL500

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2004 Mercedes-Benz SL500 today and schedule a quick installation at Firestone Complete Auto Care.

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Buying a Replacement Battery for Mercedes-Benz SL500

Your SL500 doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 2004 Mercedes-Benz SL500 battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated battery or check engine light, bloated battery case, corroded battery posts, and subpar electrical performance can all signal that your battery is waving goodbye.

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. Drop in for a free battery check and, if needed, get your Mercedes-Benz SL500 a replacement battery. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Mercedes-Benz service recommendations for SL500 car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Why Choose a DieHard Battery for Your SL500?

Your Mercedes-Benz SL500 deserves the best, which is why we carry just that. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries go above and beyond using state-of-the-art advancements to fuel the growing power demands of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Buy a DieHard battery for your Mercedes-Benz SL500 and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2004 Mercedes-Benz SL500 Battery

Did you recently have a new 2004 Mercedes-Benz SL500 car battery installed? Great job! Now, help it last longer and stay charged by caring for it from the get-go. Help extend your car battery’s life by cutting back on unnecessary short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.