Why does my E400’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your E400 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercedes-Benz E400 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz E400. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by 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 E400 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my Mercedes-Benz E400 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 E400 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a E400 engine to suddenly stop?

Reasons your E400 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Where can I go for Mercedes-Benz E400 repair?

Your local Firestone Complete Auto Care has you covered with expert E400 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 2014 Mercedes-Benz E400 Engines

Learn about

2014 Mercedes-Benz E400 Trim Options

Select your Mercedes-Benz E400 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V6/3.0L

V6/3.5L

V6/3.0L

V6/3.5L

2014 Mercedes-Benz E400 Repair

Nothing stays the same forever. Even your Mercedes-Benz E400’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a service or repair below to learn more about what we can do for your 2014 Mercedes-Benz E400.

We Know Mercedes-Benz E400 Engines

Mercedes-Benz E400 drivers trust that their E400 will take them near and far. 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 2014 Mercedes-Benz E400 engine repair or replacement parts. 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 E400 engines. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 2014 Mercedes-Benz E400 Check Engine Light Is On

An illuminated check engine light on your Mercedes-Benz E400 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 system, and it won’t go away by ignoring it. Potential causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your E400 issues diagnosed and our expert techs will get the root of the problem. engine pinging noises, essential fluid leaks, or engine misfiring.

Engine Repairs for Your 2014 E400

If your 2014 E400 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Mercedes-Benz E400 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the timing chain or belt, oil gasket, sensors, or a different component.

2014 Mercedes-Benz E400 Engine Q&A

Why does my E400’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your E400 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercedes-Benz E400 engine noises bad? Strange engine sounds can be a sign something’s off in your Mercedes-Benz E400. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by 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 E400 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my Mercedes-Benz E400 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 E400 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a E400 engine to suddenly stop? Reasons your E400 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Where can I go for Mercedes-Benz E400 repair? Your local Firestone Complete Auto Care has you covered with expert E400 engine repair. Schedule an appointment today and see us at one of our thousands of locations.