Why won't my 745i 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 dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old 745i battery?

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

What’s the cost of DieHard batteries for BMW 745is?

BMW 745i 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.

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.

What is the white, crusty substance accumulating on my 745i’s battery post?

The white, crusty stuff that can accumulate around 745i 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 745i vehicle battery?

To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your 745i owner’s manual for instructions on how to do so.

Who sells 745i batteries near me?

Your local Firestone Complete Auto Care sells and installs 745i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2003 BMW 745i Car Batteries

Get a New BMW Battery

Get a Battery for Your BMW 745i

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2003 BMW 745i today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

Battery Size & Replacement for 2003 BMW 745i

Researching battery replacements for your BMW 745i? Check the chart to find the right car battery size and cold cranking amps for your 745i.

Battery	Engine	Warranty		Cold Cranking Amps
95R/H9	V8/4.4L	Replacement 36 months	Performance months	950
H8-AGM	V8/4.4L	Replacement 36 months	Performance months	900

BATTERIES
V8/4.4L - Battery: 95R/H9 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 950
V8/4.4L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

Schedule an Appointment

Shopping for BMW 745i Car Batteries

Your 745i doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 2003 BMW 745i battery before it fails and leaves you stranded. Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, an illuminated check engine light or battery signal, bloated battery case, corroded battery posts, or dim headlights can all signal that your battery is on its last leg.

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 needed, a replacement battery for your 2003 BMW 745i. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with BMW-specific recommendations for 745i battery cold cranking amps and reserve capacity. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for 745is

Your BMW 745i deserves the best, which is why we exclusively carry the best. Your vehicle needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard 745i batteries surpass expectations using the latest innovative technology to satisfy the growing power needs of new vehicles and their accessories. They're no ordinary battery, they're extraordinary. Go with a DieHard battery for your 745i 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.

After Buying 2003 BMW 745i Battery

Have you recently had a fresh battery installed in your BMW 745i? Great job! Give your new car battery the best start with proper care. You can take care of your battery by decreasing the number of short trips you take, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.

Answers to Your 745i Car Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 745i-specific battery question, visit your nearest store. Our technicians are happy to help.

Why won't my 745i 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 dome lights on during the night. Stop in for a free battery check at your nearest Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my old 745i battery? We recycle it, taking care of both your car and the Earth.
What’s the cost of DieHard batteries for BMW 745is? BMW 745i 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.
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.
What is the white, crusty substance accumulating on my 745i’s battery post? The white, crusty stuff that can accumulate around 745i 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 745i vehicle battery? To help extend the life of your battery, you should routinely inspect and clean the terminals using a baking soda and water mix, wire brush, and rag. Be sure to disconnect the battery cables before cleaning and check your 745i owner’s manual for instructions on how to do so.
Who sells 745i batteries near me? Your local Firestone Complete Auto Care sells and installs 745i batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.