Why won’t my 635CSi battery hold a charge?

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 been leaving your car doors ajar and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old 635CSi battery?

We’ll recycle your car battery for you!

What’s the cost of DieHard batteries for BMW 635CSis?

You can find affordable 635CSi 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.

How long is a car battery good for?

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.

Why is there white, crusty buildup on my 635CSi’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 635CSi 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 remove corrosion from my 635CSi 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 635CSi owner’s manual for instructions on how to do so.

Who carries 635CSi batteries near me?

Your local Firestone Complete Auto Care sells and installs 635CSi batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1987 BMW 635CSi Car Batteries

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BMW 635CSi Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 1987 BMW 635CSi at Firestone Complete Auto Care.

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Battery Size & Replacement for 1987 BMW 635CSi

Not sure what battery to get for your BMW 635CSi? Use this chart to find the right battery size and CCAs for your BMW 635CSi.

Battery	Engine	Warranty		Cold Cranking Amps
92/T7-2	L6/3.5L	Replacement 36 months	Performance months	800
H6-AGM	L6/3.5L	Replacement 36 months	Performance months	760

BATTERIES
L6/3.5L - Battery: 92/T7-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L6/3.5L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Shopping for BMW 635CSi Car Batteries

Your 635CSi doesn't have an expiration date, but its battery does. The average car battery lasts three to five years. You want to replace your 1987 BMW 635CSi battery before it fails and leaves you stranded. Pay attention to clues that your battery is on its way out. A slow engine crank, a blinking battery or check engine light, bloated battery case, corroded battery terminals, or faded headlights can all signal that your battery is waving goodbye.

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 1987 BMW 635CSi. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with BMW-specific recommendations for 635CSi battery CCAs and reserve capacity. Get help choosing the battery size that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Is There a DieHard Battery for 635CSis?

Your BMW 635CSi deserves the best, which is why we only carry top-of-the-line replacement parts and batteries. Your vehicle needs a reliable, durable and powerful battery in extremely hot and cold environments. DieHard batteries go above and beyond using the latest innovative technology to meet the increasing power requirements of modern vehicles A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your BMW 635CSi and drive with confidence knowing that performance will be there when you need it most. That's the kind of battery we deliver.

Caring for a New BMW 635CSi Battery

Got a new car battery installed in your 1987 BMW 635CSi? Good thinking! Give your new car battery the best start with proper care. turning off all of the lights when you leave your vehicle, cutting back on unnecessary 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 635CSi Battery Questions

Turn to Firestone Complete Auto Care for answers to all your car battery questions. If you have a 635CSi-specific battery question, pay us a visit. Our technicians have the answers.

Why won’t my 635CSi battery hold a charge? 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 been leaving your car doors ajar and the lights on overnight. Stop by for a free battery test at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old 635CSi battery? We’ll recycle your car battery for you!
What’s the cost of DieHard batteries for BMW 635CSis? You can find affordable 635CSi 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.
How long is a car battery good for? 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.
Why is there white, crusty buildup on my 635CSi’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 635CSi 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 remove corrosion from my 635CSi 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 635CSi owner’s manual for instructions on how to do so.
Who carries 635CSi batteries near me? Your local Firestone Complete Auto Care sells and installs 635CSi batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.