Why won’t my S4 battery hold a charge?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my dead S4 battery?

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

How much will replacing my Audi S4’s battery cost if I get a DieHard battery?

You can find affordable S4 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?

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 stuff around my S4’s battery post?

The white, flaky stuff that can build up around your S4’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 S4, 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 remove corrosion from my S4 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 find a battery for my S4?

Your local Firestone Complete Auto Care sells and installs S4 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2018 Audi S4 Batteries

Get a New Audi Battery

Get a Battery for Your Audi S4

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2018 Audi S4 today and schedule a quick installation at Firestone Complete Auto Care.

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2018 Audi S4 Battery Replacement & Size

Not sure what battery to get for your Audi S4? Check the chart to find the right car battery size and cold cranking amps for your S4.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V6/3.0L	Replacement 24 months	Performance months	825
49H8	V6/3.0L	Replacement 36 months	Performance months	900
H7-AGM	V6/3.0L	Replacement 36 months	Performance months	850

BATTERIES
V6/3.0L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V6/3.0L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V6/3.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buying a Replacement Battery for Audi S4

Sadly, your Audi S4 won't last forever. Neither will its battery. The average car battery lasts three to five years. You want to replace your 2018 Audi S4 battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A lagging starter, an illuminated check engine light or battery signal, swollen battery case, corroded battery posts, and subpar electrical performance may all indicate that your battery is waving goodbye.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Stop by for a free battery test and, if necessary, a battery replacement to help keep your 2018 Audi S4 running! Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with Audi-specific recommendations for S4 battery cold cranking amps and reserve capacity. Get help figuring out the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for S4s

Your Audi S4 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 even the most extreme conditions. DieHard batteries go above and beyond using the latest innovative technology to satisfy the growing power needs of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Go with a DieHard battery for your S4 and have the peace of mind that performance will be there when you need it most. That's the kind of battery we deliver.

After Buying 2018 Audi S4 Battery

Have you recently had a fresh battery installed in your Audi S4? Great job! You can give your new battery a head start with proper care and attention. turning off all of the lights when you leave your vehicle, limiting short trips, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your S4 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 Audi S4 battery, pay us a visit. Our expert techs have the answers you need.

Why won’t my S4 battery hold a charge? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you’ve been leaving the doors slightly open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my dead S4 battery? We recycle it, taking care of both your car and the Earth.
How much will replacing my Audi S4’s battery cost if I get a DieHard battery? You can find affordable S4 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? 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 stuff around my S4’s battery post? The white, flaky stuff that can build up around your S4’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 S4, 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 remove corrosion from my S4 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 find a battery for my S4? Your local Firestone Complete Auto Care sells and installs S4 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.