Why does the check engine light come on when I start my S350?

It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Are Mercedes-Benz S350 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz S350. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S350 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I put water in my Mercedes-Benz S350 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your S350 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my S350 engine suddenly stop?

Reasons your S350 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs Mercedes-Benz S350 engines?

Your local Firestone Complete Auto Care offers Mercedes-Benz S350 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Reliable Repairs for 2012 Mercedes-Benz S350 Engines

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2012 Mercedes-Benz S350 Trim Options

Select your Mercedes-Benz S350 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V6/3.0L

V6/3.5L

Repairs for Your 2012 Mercedes-Benz S350

Nothing stays the same forever. Even your Mercedes-Benz S350’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2012 Mercedes-Benz S350 services.

We Know Mercedes-Benz S350 Engines

The Mercedes-Benz S350 is respected for its reliability. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If they do, you’ll have to find a dependable 2012 Mercedes-Benz service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercedes-Benz S350 engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 2012 Mercedes-Benz S350 Check Engine Light Is On

As soon as your S350 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s on or flashing could be a symptom of a serious problem in your or emission system, and it won’t go away by ignoring it. Possible causes can include a failing oxygen sensor, bad spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your S350 issues diagnosed and we’ll figure out why that check engine light is giving you grief. Other signs it's time for Mercedes-Benz S350 engine service might include oil leaks, or engine misfiring.

Engine Repairs for Your 2012 S350

When your Mercedes-Benz S350 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We make recommendations, but you make the final decision. If a repair isn’t urgent right now, we’ll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. By choosing Firestone Complete Auto Care for S350 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the serpentine belt, motor oil seal, fuses, or other parts.

2012 Mercedes-Benz S350 Engine Q&A

Why does the check engine light come on when I start my S350? It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Are Mercedes-Benz S350 engine noises bad? Strange engine sounds can be a sign something’s off in your Mercedes-Benz S350. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S350 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I put water in my Mercedes-Benz S350 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your S350 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my S350 engine suddenly stop? Reasons your S350 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Mercedes-Benz S350 engines? Your local Firestone Complete Auto Care offers Mercedes-Benz S350 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!