Why won't my 300SL 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 complimentary battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old 300SL battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your Mercedes-Benz 300SL?

Get affordable prices on Mercedes-Benz 300SL 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.

What is the average lifespan of a car battery?

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, crusty buildup on my 300SL’s battery post?

The white, flaky stuff that can build up around your 300SL’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 300SL, 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 clean corrosion off my 300SL vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your 300SL’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.

Who sells 300SL batteries near me?

You can shop for 300SL 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 300SL

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Mercedes-Benz 300SL Batteries Near You

Don't let a failing battery slow you down. Shop replacement batteries for 1992 Mercedes-Benz 300SLs today and schedule a quick installation at Firestone Complete Auto Care.

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1992 Mercedes-Benz 300SL Battery Replacement & Size

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

Battery	Engine	Warranty		Cold Cranking Amps
93-1	L6/3.0L	Replacement 24 months	Performance months	825
49H8	L6/3.0L	Replacement 36 months	Performance months	900
H8-AGM	L6/3.0L	Replacement 36 months	Performance months	900

BATTERIES
L6/3.0L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
L6/3.0L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
L6/3.0L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buy the Right Battery for Your Mercedes-Benz 300SL

You can pretty much drive your Mercedes-Benz 300SL until you don't want to anymore. But your 300SL's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your 300SL’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated battery or check engine light, swollen battery case, corroded battery terminals, and subpar electrical performance can all be signs that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. 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 necessary, a battery replacement to help keep your 1992 Mercedes-Benz 300SL running! Car batteries are only one of our many strong suits. Our expert technicians understand Mercedes-Benz service recommendations for 300SL battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a fast car battery replacement at your earliest convenience.

Why Choose a DieHard Battery for Your 300SL?

We only want what’s best for your Mercedes-Benz 300SL, which is why we exclusively carry the best. Your 300SL 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 meet the expanding power demands of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your Mercedes-Benz 300SL 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 300SL Battery

Got a new car battery installed in your 1992 Mercedes-Benz 300SL? Good thinking! 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, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.