Why does the check engine light come on when I start my E400?

It’s usually normal for your check engine light to turn on upon ignition. This is just your E400 testing 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. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Mercedes-Benz E400 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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?

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 the engine in my E400 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.

Who can repair my Mercedes-Benz E400 engine?

Your local Firestone Complete Auto Care fixes Mercedes-Benz E400 engines. Book an appointment today! We have thousands of locations across the country.

Reliable Repairs for 2017 Mercedes-Benz E400 Engines

Learn about

2017 Mercedes-Benz E400 Trim Options

Select your Mercedes-Benz E400 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz E400 parts will get older and change.

V6/3.0L

V6/3.5L

2017 Mercedes-Benz E400 Repair

Stuff wears out. Even your Mercedes-Benz E400's many parts and pieces. When something breaks, we're ready. Select a repair or category to learn more about 2017 Mercedes-Benz E400 services.

We Care for Mercedes-Benz E400 Engines

Mercedes-Benz E400 drivers trust that their E400 will take them near and far. That might be why you bought it in the first place. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 2017 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 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.

Check Engine Light on 2017 Mercedes-Benz E400

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 check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Potential causes may include a faulty oxygen sensor, damaged spark plug, issues with your catalytic converter, or a leak in the engine vacuum, to name a few possible causes. Bring your E400 in for an on-board diagnostic check and our expert techs will get the root of the problem. rattling sounds, burning smells, or misfiring.

2017 E400 Engine Services

When your Mercedes-Benz E400 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. We'll also tell you if it's necessary for your safety. We want to give you all the details you need to make an informed decision about your engine repairs. Turn to Firestone Complete Auto Care for your 2017 E400 engine repairs and you can drive easy knowing that we use Mercedes-Benz-approved parts and fluids — timing chain or belt, oil gasket, fuses, or other parts.

Engine Q&A 2017 Mercedes-Benz E400

Why does the check engine light come on when I start my E400? It’s usually normal for your check engine light to turn on upon ignition. This is just your E400 testing 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. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Mercedes-Benz E400 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car 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? 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 the engine in my E400 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.
Who can repair my Mercedes-Benz E400 engine? Your local Firestone Complete Auto Care fixes Mercedes-Benz E400 engines. Book an appointment today! We have thousands of locations across the country.