Why won’t my M5 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 by for a free battery test at your nearest Firestone Complete Auto Care to learn more about the state of your battery.

What happens to my old M5 battery?

We’ll recycle your car battery for you!

How much do DieHard batteries cost for your BMW M5?

BMW M5 batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

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, flaky stuff around my M5’s battery post?

The white, crusty stuff that can accumulate around M5 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 corrosion off my M5 vehicle 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 M5 batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install M5 batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 2003 BMW M5

Get a New BMW Battery

Get a Battery for Your BMW M5

Don't let a failing battery slow you down. Shop replacement batteries for 2003 BMW M5s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2003 BMW M5

Not sure what battery to get for your BMW M5? Check the chart to find the right car battery size and cold cranking amps for your M5.

Battery	Engine	Warranty		Cold Cranking Amps
95R/H9	V8/4.9L	Replacement 36 months	Performance months	950
H9-AGM	V8/4.9L	Replacement 36 months	Performance months	950
95R/H9	V8/5.0L	Replacement 36 months	Performance months	950
H9-AGM	V8/5.0L	Replacement 36 months	Performance months	950

BATTERIES
V8/4.9L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V8/4.9L - Battery: H9-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V8/5.0L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V8/5.0L - Battery: H9-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950

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Shopping for BMW M5 Car Batteries

Sadly, your BMW M5 won't last forever. Neither will its battery. The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your BMW M5 stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, an illuminated battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights can all signal that your battery is waving goodbye.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Stop by for a free battery test and, if needed, a replacement battery for your 2003 BMW M5. Car batteries are only one of our many strong suits. Our technicians are familiar with BMW-specific recommendations for M5 car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your M5

We only want what’s best for your BMW M5, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard M5 batteries surpass expectations using state-of-the-art advancements to fuel the expanding power demands of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Buy a DieHard battery for your BMW M5 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 M5’s New Battery Last

Got a new car battery installed in your 2003 BMW M5? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, decreasing the number of short trips you take, cleaning your battery posts, and not playing the radio or using other electronics when the engine is turned off.