Why does the check engine light come on when I start my 300E?

It’s usually normal for your check engine light to turn on upon ignition. This is just your 300E testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercedes-Benz 300E engine noises bad?

Unusual noises can signal a problem with your Mercedes-Benz 300E engine. Knocking or tapping could be a symptom of low 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 coming from the brakes, not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz 300E 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mercedes-Benz 300E 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 300E when you’re out of coolant, having water in the coolant reservoir is better than nothing.

Why did my 300E engine suddenly stop?

If your 300E car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who can repair my Mercedes-Benz 300E engine?

Your local Firestone Complete Auto Care has you covered with expert 300E engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Reliable Repairs for 1989 Mercedes-Benz 300E Engines

Learn about

1989 Mercedes-Benz 300E Trim Options

Select your Mercedes-Benz 300E trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

L6/3.0L

Repairs for Your 1989 Mercedes-Benz 300E

Nothing stays the same forever. Even your Mercedes-Benz 300E's many parts and pieces. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1989 Mercedes-Benz 300E.

We Care for Mercedes-Benz 300E Engines

Mercedes-Benz 300E 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! Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1989 Mercedes-Benz 300E engine repairs. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercedes-Benz 300E engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1989 Mercedes-Benz 300E Check Engine Light Is On

If your 300E check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or a leak in the engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your 300E issues diagnosed and our expert techs will get the root of the problem. Other signs your Mercedes-Benz 300E engine needs some TLC are essential fluid leaks, or misfiring.

Mercedes-Benz 300E Engine Repair

If your 1989 300E engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a service can wait, we’ll make sure 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. Turn to Firestone Complete Auto Care for your 1989 300E engine repairs and you can drive easy knowing that we use Mercedes-Benz-approved parts and fluids — timing belt, engine oil seal, fuses, or a different component.

Questions About 1989 Mercedes-Benz 300E Engines

Why does the check engine light come on when I start my 300E? It’s usually normal for your check engine light to turn on upon ignition. This is just your 300E testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercedes-Benz 300E engine noises bad? Unusual noises can signal a problem with your Mercedes-Benz 300E engine. Knocking or tapping could be a symptom of low 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 coming from the brakes, not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz 300E 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 slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mercedes-Benz 300E 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 300E when you’re out of coolant, having water in the coolant reservoir is better than nothing.
Why did my 300E engine suddenly stop? If your 300E car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who can repair my Mercedes-Benz 300E engine? Your local Firestone Complete Auto Care has you covered with expert 300E engine repair. Schedule an appointment today and see us at one of our thousands of locations.