Why doesn’t my 525i battery stay charged?

A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.

What do you do with my old 525i battery?

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

How much will replacing my BMW 525i’s battery cost if I get a DieHard battery?

Get affordable prices on BMW 525i batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.

How often should I replace my 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 525i’s battery post?

If you notice white, crusty stuff around the battery terminals of your 525i, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 525i’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

What do I do about corrosion on my 525i car 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 525i owner’s manual for instructions on how to do so.

Where can I find a battery for my 525i?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 525i 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.

1993 BMW 525i Car Batteries

Get a New BMW Battery

Get a New BMW 525i Battery

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1993 BMW 525i today and schedule a quick installation at Firestone Complete Auto Care.

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1993 BMW 525i Battery Replacement & Size

Researching battery replacements for your BMW 525i? Use the following chart to find information on BMW 525i battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
92/T7-2	L6/2.5L	Replacement 36 months	Performance months	800

BATTERIES
L6/2.5L - Battery: 92/T7-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800

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Buying a Replacement Battery for BMW 525i

Your 525i doesn't have an expiration date, but its battery does. On average, auto batteries last anywhere from three to five years. You want to replace your 1993 BMW 525i 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, or faded headlights can all be signs 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. Drop in for a free battery check and, if necessary, a battery replacement to help keep your 1993 BMW 525i running! Car batteries are only one of our many strong suits. Our technicians are well-acquainted with BMW’s service specs for 525i battery CCAs and reserve capacity. Get help identifying the type and size of battery that's best for your 525i, and schedule a weekday or weekend battery replacement service for your car.

Find the Right DieHard Battery for Your 525i

Your BMW 525i deserves the best, which is why we carry just that. Your 525i needs a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries shatter expectations using the latest innovative technology to satisfy the increasing power needs of new vehicles and their accessories. Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your BMW 525i 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.

Making Your 525i’s New Battery Last

Have you recently had a fresh battery installed in your BMW 525i? Good thinking! You can give your new battery a head start with proper care and attention. flipping the dome lights and headlights off when exiting the car, limiting short trips, keeping the battery posts corrosion-free, and not playing the radio or using other electronics when the engine is turned off.

Commonly Asked 525i Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have battery questions that are BMW 525i-specific, visit your nearest store. Our expert techs have the answers you need.

Why doesn’t my 525i battery stay charged? A battery that won't hold a charge is almost as good as dead. The battery might be old. Or, you’ve been leaving the doors slightly open and the dome lights on during the night. Stop in for a free battery check at your favorite Firestone Complete Auto Care and get a handle on your car battery’s health.
What do you do with my old 525i battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my BMW 525i’s battery cost if I get a DieHard battery? Get affordable prices on BMW 525i batteries by using one of our limited-time battery deals. Plus, all DieHard car batteries come with a free replacement warranty and extra coverage with DieHard Assurance.
How often should I replace my 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 525i’s battery post? If you notice white, crusty stuff around the battery terminals of your 525i, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your 525i’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
What do I do about corrosion on my 525i car 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 525i owner’s manual for instructions on how to do so.
Where can I find a battery for my 525i? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install 525i 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.