Why doesn’t my 300SD battery stay charged?

A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop by for a free battery test at your nearest Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead 300SD battery?

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

What’s the cost of DieHard batteries for Mercedes-Benz 300SDs?

Get affordable prices on Mercedes-Benz 300SD 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 often should I replace my car battery?

Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.

Why is there white, flaky stuff around my 300SD’s battery post?

A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your 300SD car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.

How do I clean corrosion off my 300SD vehicle battery?

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 purchase 300SD batteries near me?

You can shop for 300SD batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.

Car Batteries for 1992 Mercedes-Benz 300SD

Get a New Mercedes-Benz Battery

Get a Battery for Your Mercedes-Benz 300SD

Don’t let a dead battery stop you. Shop replacement car batteries for your 1992 Mercedes-Benz 300SD at Firestone Complete Auto Care.

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The Right Battery Size for a 1992 Mercedes-Benz 300SD

Need more info about Mercedes-Benz 300SD batteries? Use the following chart to find information on Mercedes-Benz 300SD battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	L6/3.4L	Replacement 24 months	Performance months	825
49H8	L6/3.4L	Replacement 36 months	Performance months	900
H8-AGM	L6/3.4L	Replacement 36 months	Performance months	900

BATTERIES
L6/3.4L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
L6/3.4L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
L6/3.4L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Shopping for Mercedes-Benz 300SD Car Batteries

You can pretty much drive your Mercedes-Benz 300SD until you don't want to anymore. But your 300SD's battery? Don't count on it to last forever. The average car battery lasts three to five years. You want to replace your 1992 Mercedes-Benz 300SD battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated check engine light or battery signal, swollen battery case, corroded battery terminals, or dim headlights may all indicate that your battery is waving goodbye.

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. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 1992 Mercedes-Benz 300SD running! Car batteries are only one of our many strong suits. Our technicians are familiar with Mercedes-Benz-specific recommendations for 300SD battery CCAs and reserve capacity. Get help choosing the battery size that's best for your 300SD, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your 300SD?

Your Mercedes-Benz 300SD deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your 300SD needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations and house the latest technology to fuel the increasing power requirements of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Mercedes-Benz 300SD and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

After Buying 1992 Mercedes-Benz 300SD Battery

Did you recently have a new 1992 Mercedes-Benz 300SD car battery installed? Great job! Give your new car battery the best start with proper care. You can take care of your battery by limiting short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your 300SD Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 300SD-specific battery question, pay us a visit. Our technicians are happy to help.

Why doesn’t my 300SD battery stay charged? A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop by for a free battery test at your nearest Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my dead 300SD battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for Mercedes-Benz 300SDs? Get affordable prices on Mercedes-Benz 300SD 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 often should I replace my car battery? Car battery lifespan varies depending on a few factors, including driving conditions, accessories, how well it’s maintained, and the type of battery. On average, a car battery lasts about three to five years.
Why is there white, flaky stuff around my 300SD’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your 300SD car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
How do I clean corrosion off my 300SD vehicle battery? 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 purchase 300SD batteries near me? You can shop for 300SD batteries at your local Firestone Complete Auto Care, and our expert technicians will even handle the installation. Don’t have time to visit our store? Our Firestone Direct mobile vans can come to you for battery installations! Learn more about our mobile battery services.