Why does the check engine light in my S450 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your S450 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why does my Mercedes-Benz engine sound different?

Strange under-the-hood noises can point to problems within your Mercedes-Benz S450 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S450 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Is it okay to put water in my Mercedes-Benz S450 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What can cause a S450 engine to suddenly stop?

There are different reasons your S450 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who fixes Mercedes-Benz S450 engines?

Your local Firestone Complete Auto Care offers Mercedes-Benz S450 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

2019 Mercedes-Benz S450 Engine Repair

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2019 Mercedes-Benz S450 Trim Options

Select your Mercedes-Benz S450 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz S450 parts will get older and change.

Repairs for Your 2019 Mercedes-Benz S450

Nothing stays the same forever. Even your Mercedes-Benz S450's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2019 Mercedes-Benz S450 repairs.

We’re Trained to Care for Mercedes-Benz S450 Engines

Mercedes-Benz S450 engines are known for their reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 2019 Mercedes-Benz S450 engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercedes-Benz S450 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 2019 Mercedes-Benz S450 Check Engine Light Is On

An illuminated check engine light on your Mercedes-Benz S450 is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your or emission control system that won’t go away on its own. Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your S450 in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs your Mercedes-Benz S450 engine needs some TLC are oil leaks, or engine misfiring.

Engine Repairs for Your 2019 S450

When your Mercedes-Benz S450 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. 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 S450 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the cambelt, valve guide seal, sensors, or a different component.

Questions About 2019 Mercedes-Benz S450 Engines

Why does the check engine light in my S450 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your S450 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my Mercedes-Benz engine sound different? Strange under-the-hood noises can point to problems within your Mercedes-Benz S450 engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S450 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving your engine while the vehicle is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Is it okay to put water in my Mercedes-Benz S450 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What can cause a S450 engine to suddenly stop? There are different reasons your S450 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who fixes Mercedes-Benz S450 engines? Your local Firestone Complete Auto Care offers Mercedes-Benz S450 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!