Why doesn’t my 300SE battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly 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 happens to my old 300SE battery?

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

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

Mercedes-Benz 300SE 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 often should I replace my car battery?

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 300SE’s battery post?

The white, flaky stuff that can build up around your 300SE’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 300SE, 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 300SE vehicle battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your 300SE 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 300SE batteries near me?

You can shop for 300SE 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.

1991 Mercedes-Benz 300SE Batteries

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Get a Battery for Your Mercedes-Benz 300SE

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1991 Mercedes-Benz 300SE today and schedule a quick installation at Firestone Complete Auto Care.

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1991 Mercedes-Benz 300SE Battery Replacement & Size

Not sure what battery to get for your Mercedes-Benz 300SE? Use this chart to find the right battery size and CCAs for your Mercedes-Benz 300SE.

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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Buying a Replacement Battery for Mercedes-Benz 300SE

Your 300SE doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. Don’t get stranded by your 300SE’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, an illuminated battery or check engine light, bloated battery case, corroded battery posts, and subpar electrical performance can all be signs that your battery needs attention.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. 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 1991 Mercedes-Benz 300SE running! Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Mercedes-Benz’s service specs for 300SE battery cold cranking amps and reserve capacity. Get help figuring out the battery size that's best for your 300SE, and schedule a weekday or weekend battery replacement service for your car.

Firestone Has DieHard Batteries for 300SEs

Your Mercedes-Benz 300SE deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your 300SE needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard 300SE batteries surpass expectations using the latest innovative technology to satisfy the expanding power requirements of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your 300SE and have the peace of mind that performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New Mercedes-Benz 300SE Battery

Have you recently had a fresh battery installed in your Mercedes-Benz 300SE? Congrats! Give your new car battery the best start with proper care. flipping the dome lights and headlights off when exiting the car, limiting short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.