Why won’t my 300SE battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. The battery might be old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead 300SE battery?

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

How much will replacing my Mercedes-Benz 300SE’s battery cost if I get a DieHard battery?

You can find affordable 300SE batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

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.

What is the white, crusty substance accumulating on my 300SE’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 300SE 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 300SE vehicle battery?

Regularly inspecting and cleaning your battery terminals will help keep your 300SE’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 purchase 300SE batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 300SE 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.

1989 Mercedes-Benz 300SE Car Batteries

Get a New Mercedes-Benz Battery

Get a New Mercedes-Benz 300SE Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1989 Mercedes-Benz 300SE today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 1989 Mercedes-Benz 300SE

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

Battery	Engine	Warranty		Cold Cranking Amps
91-1	L6/3.0L	Replacement 24 months	Performance months	615
48H6	L6/3.0L	Replacement 36 months	Performance months	730
H6-AGM	L6/3.0L	Replacement 36 months	Performance months	760

BATTERIES
L6/3.0L - Battery: 91-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 615
L6/3.0L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
L6/3.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Buying a Replacement Battery for Mercedes-Benz 300SE

Your 300SE doesn't have an expiration date, but its battery does. On average, auto batteries last anywhere from three to five years. You want to replace your 1989 Mercedes-Benz 300SE battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A sluggish engine start, an illuminated check engine light or battery signal, swollen battery case, corrosion-covered posts, or faded headlights may all indicate 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. Drop in for a free battery check and, if needed, get your Mercedes-Benz 300SE a replacement battery. Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Mercedes-Benz service recommendations for 300SE car batteries’ reserve capacities and cold cranking amps. Get help figuring out the battery size that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your 300SE

Your Mercedes-Benz 300SE deserves the best, 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 300SE batteries surpass expectations using state-of-the-art advancements to meet the increasing power requirements of modern vehicles They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your 300SE 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 1989 Mercedes-Benz 300SE Battery

Got a new car battery installed in your 1989 Mercedes-Benz 300SE? Good thinking! You can give your new battery a head start with proper care and attention. Give your new battery a hand by cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your 300SE Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your Mercedes-Benz 300SE battery, visit your nearest store. Our technicians are happy to help.

Why won’t my 300SE battery hold a charge? A battery is in its final hour when it will no longer hold a charge. The battery might be old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my dead 300SE battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my Mercedes-Benz 300SE’s battery cost if I get a DieHard battery? You can find affordable 300SE batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.
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.
What is the white, crusty substance accumulating on my 300SE’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 300SE 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 300SE vehicle battery? Regularly inspecting and cleaning your battery terminals will help keep your 300SE’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 purchase 300SE batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 300SE 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.