2003 BMW 540i Batteries

Get a New BMW 540i Battery

Don’t let a dead battery stop you. Shop replacement car batteries for your 2003 BMW 540i at Firestone Complete Auto Care.

Shopping for BMW 540i Car Batteries

Your 540i doesn't have an expiration date, but its battery does. On average, auto batteries last anywhere from three to five years. Don’t get stranded by your 540i’s car battery. Replace it regularly instead! 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 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. Stop by for a free battery test and, if needed, a replacement battery for your 2003 BMW 540i. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with BMW’s service specs for 540i battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your 540i

Your BMW 540i 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 extremely hot and cold environments. DieHard batteries go above and beyond using state-of-the-art advancements to fuel the growing power demands of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Go with a DieHard battery for your 540i 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 540i’s New Battery Last

Have you recently had a fresh battery installed in your BMW 540i? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. Give your new battery a hand by cutting back on unnecessary short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Answers to Your 540i Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a 540i-specific battery question, visit your nearest store. Our technicians have the answers.

  • Why doesn’t my 540i battery stay charged? 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 local Firestone Complete Auto Care and get a handle on your car battery’s health.
  • What do you do with my old 540i battery? We recycle it, taking care of both your car and the Earth.
  • How much will replacing my BMW 540i’s battery cost if I get a DieHard battery? Get affordable prices on BMW 540i 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 long is a car battery good for? 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 540i’s battery post? A chemical reaction between battery acid and the air can cause a white, crusty buildup to form on the terminals of your 540i car battery. This buildup — known as corrosion — can impede the flow of electricity and cause a range of issues, from poor performance to premature battery failure.
  • How do I clean a corroded 540i battery terminal? 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 540i owner’s manual for instructions on how to do so.
  • Where can I find a battery for my 540i? You can shop for 540i 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.