Why does my 500SEL’s check engine light come on when I start it?

It’s usually normal for your check engine light to turn on upon ignition. It’s just your 500SEL firing up 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 500SEL making engine noise?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz 500SEL. Tapping or knocking could mean you need an oil change. 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 500SEL engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Mercedes-Benz 500SEL radiator?

While it’s not recommended, you can use water in your 500SEL radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my 500SEL engine to suddenly stop?

Your 500SEL car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who can repair my Mercedes-Benz 500SEL engine?

Your local Firestone Complete Auto Care has you covered with expert 500SEL engine repair. Schedule an appointment today and see us at one of our thousands of locations.

1985 Mercedes-Benz 500SEL Engine Repair

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1985 Mercedes-Benz 500SEL Trim Options

Select your Mercedes-Benz 500SEL trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V8/5.0L

Mercedes-Benz 500SEL Repairs and Services

Nothing lasts forever. Even your Mercedes-Benz 500SEL’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 1985 Mercedes-Benz 500SEL repairs.

We’re Trained to Care for Mercedes-Benz 500SEL Engines

Mercedes-Benz 500SEL drivers trust that their 500SEL will take them near and far. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Things can go sideways sometimes. If they do, you’ll have to find a dependable 1985 Mercedes-Benz service center — quick! 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 500SEL 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.

Illuminated Check Engine Light on 1985 Mercedes-Benz 500SEL

As soon as your 500SEL check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel injection, Potential causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your 500SEL to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. engine pinging noises, burning smells, or misfiring.

Mercedes-Benz 500SEL Engine Repair

When your Mercedes-Benz 500SEL engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair isn’t urgent right now, we’ll let you know. If it's necessary for your safety, we'll make sure you understand that, too. We seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for Mercedes-Benz 500SEL 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.

Engine Q&A 1985 Mercedes-Benz 500SEL

Why does my 500SEL’s check engine light come on when I start it? It’s usually normal for your check engine light to turn on upon ignition. It’s just your 500SEL firing up 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 500SEL making engine noise? Strange engine sounds can be a sign something’s off in your Mercedes-Benz 500SEL. Tapping or knocking could mean you need an oil change. 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 500SEL engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Mercedes-Benz 500SEL radiator? While it’s not recommended, you can use water in your 500SEL radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my 500SEL engine to suddenly stop? Your 500SEL car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my Mercedes-Benz 500SEL engine? Your local Firestone Complete Auto Care has you covered with expert 500SEL engine repair. Schedule an appointment today and see us at one of our thousands of locations.