When should Mercedes-Benz 400SEL spark plugs be replaced?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Mercedes-Benz’s recommendations.

What should I do if I see leaks under my 400SEL?

Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.

Are hard starts and stops bad for my Mercedes-Benz 400SEL engine?

Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.

Where can I have a Mercedes-Benz 400SEL tune-up done?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz 400SEL service, maintenance, and repairs.

How often should I clean my Mercedes-Benz 400SEL fuel injectors?

Factors like fuel type and driving conditions can affect how frequently you need to clean your 400SEL fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.

Who offers Mercedes-Benz 400SEL tune-ups?

When your 400SEL needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

1993 Mercedes-Benz 400SEL Engine Tune-Ups & Maintenance

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Schedule Mercedes-Benz 400SEL Tune-Up

If your 400SEL is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

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Tune Into Your Mercedes-Benz 400SEL

Is it time for an engine tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, it could be time for a new way of doing things, especially if you drive a 1993 Mercedes-Benz 400SEL. Periodic tune-ups can bring more power back to your 400SEL’s engine. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. When you follow the guidelines specified by Mercedes-Benz for your vehicle’s tune-up schedule, you invest in your 400SEL's long-term health and engine performance.

Mercedes-Benz 400SEL Engine Tune-Up Services

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 1993 Mercedes-Benz 400SEL. One option is the standard Firestone Tune-Up. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. Another service option pays special attention to the filters in your 400SEL. Specifically, we replace the fuel filter and air filter. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your 400SEL’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Here’s something to remember when choosing services: the mileage and service history of your 400SEL can determine what kind of service it needs. If you’re not sure what services are the best fit for your car, let us help! Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where to Get a Tune-Up for Your Mercedes-Benz 400SEL

Come to Firestone Complete Auto Care for your next 1993 400SEL engine tune-up. Consult your vehicle’s recommended service schedule from Mercedes-Benz, or make a service appointment if you notice any of these symptoms from your engine: decreased gas mileage, "rough" idling or stalling when stopped, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.

Common Engine Tune-Up Q&A For 1993 Mercedes-Benz 400SELs

When should Mercedes-Benz 400SEL spark plugs be replaced? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on Mercedes-Benz’s recommendations.
What should I do if I see leaks under my 400SEL? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
Are hard starts and stops bad for my Mercedes-Benz 400SEL engine? Hard starts and stops put extra wear and tear on engine components. Smooth, gradual starts and stops, on the other hand, are a great way to help your engine run better. They can also help maximize your fuel economy.
Where can I have a Mercedes-Benz 400SEL tune-up done? At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz 400SEL service, maintenance, and repairs.
How often should I clean my Mercedes-Benz 400SEL fuel injectors? Factors like fuel type and driving conditions can affect how frequently you need to clean your 400SEL fuel injectors. Some manufacturers recommend a fuel system cleaning as part of routine maintenance, or as needed if your vehicle is showing signs of poor fuel system performance.
Who offers Mercedes-Benz 400SEL tune-ups? When your 400SEL needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Maintenance for Your 1993 Mercedes-Benz 400SEL

Stay ahead of any potential issues with your Mercedes-Benz 400SEL so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

1993 Mercedes-Benz 400SEL Repair

Nothing lasts forever. Even your Mercedes-Benz 400SEL's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1993 Mercedes-Benz 400SEL repairs.