Why doesn’t my SLK350 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’ve been leaving the doors slightly open 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 SLK350 battery?

We recycle it, taking care of both your car and the Earth.

How much do DieHard batteries cost for your Mercedes-Benz SLK350?

Get affordable prices on Mercedes-Benz SLK350 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.

What is the white, crusty substance accumulating on my SLK350’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 SLK350 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 SLK350 car battery?

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.

Where can I purchase SLK350 batteries near me?

When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install SLK350 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.

2005 Mercedes-Benz SLK350 Batteries

Get a New Mercedes-Benz Battery

Mercedes-Benz SLK350 Batteries Near You

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 2005 Mercedes-Benz SLK350 today and schedule a quick installation at Firestone Complete Auto Care.

Shop Batteries

Battery Size & Replacement for 2005 Mercedes-Benz SLK350

Researching battery replacements for your Mercedes-Benz SLK350? Use the following chart to find information on Mercedes-Benz SLK350 battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
47H5	V6/3.5L	Replacement 36 months	Performance months	650
H5-AGM	V6/3.5L	Replacement 36 months	Performance months	680

BATTERIES
V6/3.5L - Battery: 47H5 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 650
V6/3.5L - Battery: H5-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 680

Schedule an Appointment

Buying a Replacement Battery for Mercedes-Benz SLK350

Sadly, your Mercedes-Benz SLK350 won't last forever. Neither will its battery. The average car battery lasts three to five years. Don’t get stranded by your SLK350’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A slow engine crank, an illuminated check engine light or battery signal, swollen battery case, corrosion-covered posts, and subpar electrical performance can all be signs that your battery needs attention.

Plus, at Firestone Complete Auto Care, we’ll test your battery for free. With computerized testing we can see how much charge is left in your battery. Stop by for a free battery test and, if needed, get your Mercedes-Benz SLK350 a replacement battery. Car batteries are only one of our many strong suits. Our expert technicians understand Mercedes-Benz service recommendations for SLK350 battery CCAs and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Is There a DieHard Battery for SLK350s?

We only want what’s best for your Mercedes-Benz SLK350, which is why we carry just that. Your vehicle needs a reliable, durable and powerful battery in even some of the toughest conditions. DieHard batteries shatter expectations and house the latest technology to meet the increasing power needs of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Buy a DieHard battery for your Mercedes-Benz SLK350 and have the peace of mind that your battery will perform when you need it. That's the kind of battery we deliver.

After Buying 2005 Mercedes-Benz SLK350 Battery

Did you recently have a new 2005 Mercedes-Benz SLK350 car battery installed? Good thinking! Give your new car battery the best start with proper care. You can take care of your battery by limiting short trips, keeping your battery posts clean, and avoiding radio and electronic component use when the engine is off.

Answers to Your SLK350 Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have a battery question that's unique to your Mercedes-Benz SLK350 battery, visit your nearest store. Our technicians have the answers.

Why doesn’t my SLK350 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’ve been leaving the doors slightly open 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 SLK350 battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your Mercedes-Benz SLK350? Get affordable prices on Mercedes-Benz SLK350 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.
What is the white, crusty substance accumulating on my SLK350’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 SLK350 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 SLK350 car battery? 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.
Where can I purchase SLK350 batteries near me? When you need a new battery for your vehicle, Firestone Complete Auto Care is here to help. We sell and install SLK350 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.