Why won’t my SLK320 battery hold a charge?

A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old SLK320 battery?

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

What’s the cost of DieHard batteries for Mercedes-Benz SLK320s?

You can find affordable SLK320 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 do car batteries last?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

Why is there white, flaky stuff around my SLK320’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 SLK320 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 SLK320 battery terminal?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Who carries SLK320 batteries near me?

Your local Firestone Complete Auto Care sells and installs SLK320 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

2004 Mercedes-Benz SLK320 Batteries

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Mercedes-Benz SLK320 Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2004 Mercedes-Benz SLK320 at Firestone Complete Auto Care.

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2004 Mercedes-Benz SLK320 Battery Replacement & Size

Not sure what battery to get for your Mercedes-Benz SLK320? Check the chart to find the right car battery size and cold cranking amps for your SLK320.

Battery	Engine	Warranty		Cold Cranking Amps
48H6	V6/3.2L	Replacement 36 months	Performance months	730
H6-AGM	V6/3.2L	Replacement 36 months	Performance months	760

BATTERIES
V6/3.2L - Battery: 48H6 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 730
V6/3.2L - Battery: H6-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 760

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Buying a Replacement Battery for Mercedes-Benz SLK320

Sadly, your Mercedes-Benz SLK320 won't last forever. Neither will its battery. The average car battery lasts three to five years. Don’t get stranded by your SLK320’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A lagging starter, a blinking battery or check engine light, swollen battery case, corrosion-covered posts, or faded headlights may all indicate that your battery is waving goodbye.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. Our equipment can see how much charge is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 2004 Mercedes-Benz SLK320. Automotive batteries are just one of our many areas of expertise. Our technicians are well-acquainted with Mercedes-Benz’s service specs for SLK320 battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Firestone Has DieHard Batteries for SLK320s

We only want what’s best for your Mercedes-Benz SLK320, which is why we carry just that. You need a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations using the latest innovative technology to satisfy the expanding 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 SLK320 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.

Caring for a New Mercedes-Benz SLK320 Battery

Have you recently had a fresh battery installed in your Mercedes-Benz SLK320? Good thinking! Give your new car battery the best start with proper care. Help extend your car battery’s life by decreasing the number of short trips you take, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your SLK320 Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your Mercedes-Benz SLK320 battery, stop by your nearest store. Our technicians are happy to help.

Why won’t my SLK320 battery hold a charge? A battery is in its final hour when it will no longer hold a charge. The battery may be too old. Or, you may have been leaving your car doors ajar and the dome lights on during the night. Stop by for a free battery test at your local Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old SLK320 battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
What’s the cost of DieHard batteries for Mercedes-Benz SLK320s? You can find affordable SLK320 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 do car batteries last? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
Why is there white, flaky stuff around my SLK320’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 SLK320 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 SLK320 battery terminal? Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.
Who carries SLK320 batteries near me? Your local Firestone Complete Auto Care sells and installs SLK320 batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.