Why does the check engine light in my E300 turn on when I start my car?

It’s usually normal for your check engine light to turn on upon ignition. 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.

Why is my Mercedes-Benz E300 making engine noise?

Strange under-the-hood noises can point to problems within your Mercedes-Benz E300 engine. Tapping or knocking could mean you're low on 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 my Mercedes-Benz E300 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Mercedes-Benz E300 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.

Why did my E300 engine suddenly stop?

Reasons your E300 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 E300 repair?

Your local Firestone Complete Auto Care has you covered with expert E300 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 2018 Mercedes-Benz E300 Engines

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2018 Mercedes-Benz E300 Trim Options

Select your Mercedes-Benz E300 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

L4/2.0L

2018 Mercedes-Benz E300 Repair

Nothing stays the same forever. Even your Mercedes-Benz E300’s engine parts and components will change. We’re here to help when something stops working. Click on a repair below to learn more about 2018 Mercedes-Benz E300 repairs.

We’re Trained to Care for Mercedes-Benz E300 Engines

Mercedes-Benz E300 drivers trust that their E300 will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. When they do, you might find yourself searching for 2018 Mercedes-Benz E300 engine repair or replacement parts. That's when it's time to head to Firestone Complete Auto Care. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Mercedes-Benz E300 engine will be in good hands. 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.

Illuminated Check Engine Light on 2018 Mercedes-Benz E300

As soon as your E300 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 fuel, Possible causes can include a failing oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your E300 in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs it's time for Mercedes-Benz E300 engine service might include burning smells, or a sinking feeling that something’s wrong.

Engine Repairs for Your 2018 E300

If your 2018 Mercedes-Benz E300 needs engine repair, our technicians will provide you with a thorough explanation beforehand. We don't start working until we have your approval. 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. Turn to Firestone Complete Auto Care for your 2018 E300 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the timing chain or belt, oil gasket, sensors, or a different component.

Questions About 2018 Mercedes-Benz E300 Engines

Why does the check engine light in my E300 turn on when I start my car? It’s usually normal for your check engine light to turn on upon ignition. 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.
Why is my Mercedes-Benz E300 making engine noise? Strange under-the-hood noises can point to problems within your Mercedes-Benz E300 engine. Tapping or knocking could mean you're low on 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 my Mercedes-Benz E300 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. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Mercedes-Benz E300 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.
Why did my E300 engine suddenly stop? Reasons your E300 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 E300 repair? Your local Firestone Complete Auto Care has you covered with expert E300 engine repair. Schedule an appointment today and see us at one of our thousands of locations.