Why won't my CLS550 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 been leaving your car doors ajar and the lights on overnight. Stop by for a free battery test at your nearest Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old CLS550 battery?

We’ll recycle your car battery for you!

How much will replacing my Mercedes-Benz CLS550’s battery cost if I get a DieHard battery?

Get affordable prices on Mercedes-Benz CLS550 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 can I expect my car battery to last?

A car battery normally lasts three to five years, but this number can vary based on battery type, your driving habits, and battery maintenance.

Why is there white, flaky stuff around my CLS550’s battery post?

The white, flaky stuff that can build up around your CLS550’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your CLS550, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

What do I do about corrosion on my CLS550 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 CLS550 owner’s manual for instructions on how to do so.

Where can I purchase CLS550 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install CLS550 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.

Car Batteries for 2008 Mercedes-Benz CLS550

Get a New Mercedes-Benz Battery

Get a New Mercedes-Benz CLS550 Battery

Don't let a failing battery slow you down. Shop replacement batteries for 2008 Mercedes-Benz CLS550s today and schedule a quick installation at Firestone Complete Auto Care.

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The Right Battery Size for a 2008 Mercedes-Benz CLS550

Not sure what battery to get for your Mercedes-Benz CLS550? Check the chart to find the right car battery size and cold cranking amps for your CLS550.

Battery	Engine	Warranty		Cold Cranking Amps
93-1	V8/5.5L	Replacement 24 months	Performance months	825
49H8	V8/5.5L	Replacement 36 months	Performance months	900
H8-AGM	V8/5.5L	Replacement 36 months	Performance months	900

BATTERIES
V8/5.5L - Battery: 93-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 825
V8/5.5L - Battery: 49H8 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900
V8/5.5L - Battery: H8-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 900

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Buying a Replacement Battery for Mercedes-Benz CLS550

Sadly, your Mercedes-Benz CLS550 won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Don’t get stranded by your CLS550’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corroded battery terminals, or dim headlights can all signal that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we 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 2008 Mercedes-Benz CLS550 running! Automotive batteries are just one of our many areas of expertise. Our expert technicians understand Mercedes-Benz service recommendations for CLS550 battery CCAs and reserve capacity. Get help identifying the type and size of battery that matches your vehicle, and schedule a weekday or weekend battery replacement service for your car.

Why Choose a DieHard Battery for Your CLS550?

We know what’s best for your Mercedes-Benz CLS550, which is why we exclusively carry the best. Your CLS550 needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard CLS550 batteries surpass expectations using the latest innovative technology to meet the increasing power demands of new vehicles. Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your Mercedes-Benz CLS550 and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

Making Your CLS550’s New Battery Last

Got a new car battery installed in your 2008 Mercedes-Benz CLS550? Great job! 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, limiting short trips, cleaning your battery posts, and not using electronics such as the radio and power outlets when the engine is off.