Why won't my 90 battery stay charged?

A car battery that needs to be jump-started every time is 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 in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my dead 90 battery?

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

How much will replacing my Audi 90’s battery cost if I get a DieHard battery?

You can find affordable 90 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?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

Why is there white, flaky stuff around my 90’s battery post?

The white, crusty stuff that can accumulate around 90 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.

How do I clean a corroded 90 battery terminal?

Regularly inspecting and cleaning your battery terminals will help keep your 90’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 90 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 90 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 Audi 90 Car Batteries

Get a New Audi Battery

Get a New Audi 90 Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1989 Audi 90 today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1989 Audi 90

Not sure what battery to get for your Audi 90? Use the following chart to find information on Audi 90 battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
41-2	L5/2.3L	Replacement 24 months	Performance months	650
T6	L5/2.3L	Replacement 36 months	Performance months	720

BATTERIES
L5/2.3L - Battery: 41-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
L5/2.3L - Battery: T6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 720

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Buy the Right Battery for Your Audi 90

Sadly, your Audi 90 won't last forever. Neither will its battery. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your 90’s car battery. Replace it regularly instead! Pay attention to clues that your battery is on its way out. A slow engine crank, a blinking battery or check engine light, bloated 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 computerized testing we 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 1989 Audi 90 running! Car batteries are one of our many specialties! Our expert technicians understand Audi service recommendations for 90 car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that's best for your 90, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your 90

Your Audi 90 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 some of the toughest conditions. DieHard 90 batteries surpass expectations using the latest innovative technology to fuel the expanding power requirements of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your 90 and have the peace of mind that performance will be there when you need it most. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your 90’s New Battery Last

Have you recently had a fresh battery installed in your Audi 90? Good thinking! Give your new car battery the best start with proper care. ensuring all the lights are turned off before you leave the car, limiting short trips, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your 90 Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 90-specific battery question, pay us a visit. Our technicians are happy to help.

Why won't my 90 battery stay charged? A car battery that needs to be jump-started every time is 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 in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my dead 90 battery? We recycle it, taking care of both your car and the Earth.
How much will replacing my Audi 90’s battery cost if I get a DieHard battery? You can find affordable 90 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? A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.
Why is there white, flaky stuff around my 90’s battery post? The white, crusty stuff that can accumulate around 90 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.
How do I clean a corroded 90 battery terminal? Regularly inspecting and cleaning your battery terminals will help keep your 90’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 90 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 90 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.