Why won’t my Passat battery hold a charge?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Passat battery?

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

How much do DieHard batteries cost for your Volkswagen Passat?

You can find affordable Passat 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.

What is the average lifespan of a 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 Passat’s battery post?

The white, flaky stuff that can build up around your Passat’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 Passat, 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 Passat car battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Passat 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.

Where can I purchase Passat batteries near me?

You can shop for Passat 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.

2004 Volkswagen Passat Batteries

Get a New Volkswagen Battery

Get a Battery for Your Volkswagen Passat

Don’t let a dead battery stop you. Shop replacement car batteries for your 2004 Volkswagen Passat at Firestone Complete Auto Care.

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2004 Volkswagen Passat Battery Replacement & Size

Researching battery replacements for your Volkswagen Passat? Use this chart to find the right battery size and CCAs for your Volkswagen Passat.

Battery	Engine	Warranty		Cold Cranking Amps
94RH7	L4/1.8L	Replacement 36 months	Performance months	800
H6-AGM	L4/1.8L	Replacement 36 months	Performance months	760
94RH7	V6/2.8L	Replacement 36 months	Performance months	800
H7-AGM	V6/2.8L	Replacement 36 months	Performance months	850
47H5	L4/2.0L	Replacement 36 months	Performance months	650
H6-AGM	L4/2.0L	Replacement 36 months	Performance months	760
48H6	W8/4.0L	Replacement 36 months	Performance months	730
H7-AGM	W8/4.0L	Replacement 36 months	Performance months	850

BATTERIES
L4/1.8L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L4/1.8L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760
V6/2.8L - Battery: 94RH7 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V6/2.8L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850
L4/2.0L - Battery: 47H5 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
L4/2.0L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760
W8/4.0L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
W8/4.0L - Battery: H7-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 850

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Buy the Right Battery for Your Volkswagen Passat

You can pretty much drive your Volkswagen Passat until you don't want to anymore. But your Passat's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. You want to replace your 2004 Volkswagen Passat 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 battery or check engine light, bloated battery case, corroded battery terminals, or weak lights can all signal that your battery needs attention.

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 necessary, a battery replacement to help keep your 2004 Volkswagen Passat running! Car batteries are one of our many specialties! Our expert technicians understand Volkswagen service recommendations for Passat car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your Passat

We know what’s best for your Volkswagen Passat, 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 Passat batteries surpass expectations using the latest innovative technology to meet the increasing power demands of new vehicles. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your Passat and drive with confidence knowing that your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Caring for a New Volkswagen Passat Battery

Have you recently had a fresh battery installed in your Volkswagen Passat? Great job! Now, help it last longer and stay charged by caring for it from the get-go. turning off all of the lights when you leave your vehicle, limiting short trips, keeping the battery posts corrosion-free, and not using electronics such as the radio and power outlets when the engine is off.

Answers to Your Passat Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have battery questions that are Volkswagen Passat-specific, pay us a visit. Our technicians have the answers.

Why won’t my Passat battery hold a charge? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a complimentary battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my old Passat battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much do DieHard batteries cost for your Volkswagen Passat? You can find affordable Passat 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.
What is the average lifespan of a 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 Passat’s battery post? The white, flaky stuff that can build up around your Passat’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 Passat, 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 Passat car battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Passat 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.
Where can I purchase Passat batteries near me? You can shop for Passat 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.