Why won’t my S6 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 may have been leaving your car doors ajar and the cabin light at night. Stop in for a free battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead S6 battery?

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

How much will replacing my Audi S6’s battery cost if I get a DieHard battery?

You can find affordable S6 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 long can I expect my car battery to last?

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, crusty buildup on my S6’s battery post?

The white, crusty stuff that can accumulate around S6 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 S6 car 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 S6 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install S6 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.

2018 Audi S6 Batteries

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Audi S6 Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2018 Audi S6 today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2018 Audi S6

Need more info about Audi S6 batteries? Use this chart to find the right battery size and CCAs for your Audi S6.

Battery	Engine	Warranty		Cold Cranking Amps
91-1	V8/4.0L	Replacement 24 months	Performance months	615
94RH7	V8/4.0L	Replacement 36 months	Performance months	800
H8-AGM	V8/4.0L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.0L - Battery: 91-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 615
V8/4.0L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/4.0L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Shopping for Audi S6 Car Batteries

You can pretty much drive your Audi S6 until you don't want to anymore. But your S6's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. You want to replace your 2018 Audi S6 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 check engine light or battery signal, bloated battery case, corroded battery terminals, or weak lights can all be signs that your battery is on its last leg.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. 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 needed, get your Audi S6 a replacement battery. Car batteries are only one of our many strong suits. Our technicians are well-acquainted with Audi’s service specs for S6 battery CCAs and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your S6

Your Audi S6 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 batteries shatter expectations using state-of-the-art advancements to satisfy the increasing power demands of new vehicles. A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your S6 and have the peace of mind that performance will be there when you're counting on it. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your S6’s New Battery Last

Have you recently had a fresh battery installed in your Audi S6? Good thinking! You can give your new battery a head start with proper care and attention. Help extend your car battery’s life by cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Commonly Asked S6 Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Audi S6 battery, stop by your nearest store. Our technicians have the answers.

Why won’t my S6 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 may have been leaving your car doors ajar and the cabin light at night. Stop in for a free battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead S6 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my Audi S6’s battery cost if I get a DieHard battery? You can find affordable S6 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 long can I expect my car battery to last? 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, crusty buildup on my S6’s battery post? The white, crusty stuff that can accumulate around S6 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 S6 car 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 S6 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install S6 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.