Will it hurt my Mercedes-Benz 300SEL to drive with old spark plugs?

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 do I do if I see a pool of liquid under my Mercedes-Benz 300SEL?

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 300SEL engine?

You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.

Where can I have a Mercedes-Benz 300SEL tune-up done?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz 300SELs.

How frequently do the fuel injectors in my Mercedes-Benz 300SEL need to be cleaned?

There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.

Who does Mercedes-Benz 300SEL tune-ups?

When your 300SEL 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.

1989 Mercedes-Benz 300SEL Tune-Up & Engine Service

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Schedule an Appointment for Your Mercedes-Benz 300SEL Tune-Up

If your 300SEL 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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Enhance Mercedes-Benz 300SEL Performance with a Tune-Up

Is your engine overdue for a tune-up? If you tend to ignore your car until something goes wrong, it might be time to change your ways, especially if you drive a 1989 Mercedes-Benz 300SEL. Routine engine tune-ups can bring power back to your 300SEL. Tune-ups give your engine a boost in efficiency, so you can enjoy improved fuel economy and lower emissions. When you take your car for regular engine tune-ups as recommended by Mercedes-Benz, you invest in your 300SEL's long-term health and engine performance.

Engine Tune-Up for Mercedes-Benz 300SEL

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz 300SEL engine tune-up services. The standard Firestone Tune-Up is one service option. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your 300SEL. Specifically, we replace the fuel filter and air filter. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your 300SEL's fuel injectors, throttle body, and throttle plate. This goes a long way in boosting your fuel system’s overall performance. Keep in mind that your 300SEL's mileage and maintenance history can uniquely impact its tune-up needs. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where to Get a Tune-Up for Your Mercedes-Benz 300SEL

If you’re looking for 1989 300SEL engine tune-up services, head to Firestone Complete Auto Care. Not sure when you’re due for a tune-up? Use Mercedes-Benz’s recommended maintenance schedule as a reference point, or schedule an appointment ASAP if you notice any of these signs: stalling or shaky idling when you’re stopped, diminished fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Ask a Firestone Complete Auto Care teammate about full terms and conditions for warranties.

Questions About 1989 Mercedes-Benz 300SEL Engine Tune-Ups

Will it hurt my Mercedes-Benz 300SEL to drive with old spark plugs? 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 do I do if I see a pool of liquid under my Mercedes-Benz 300SEL? 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 300SEL engine? You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.
Where can I have a Mercedes-Benz 300SEL tune-up done? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz 300SELs.
How frequently do the fuel injectors in my Mercedes-Benz 300SEL need to be cleaned? There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.
Who does Mercedes-Benz 300SEL tune-ups? When your 300SEL 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 1989 Mercedes-Benz 300SEL

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercedes-Benz 300SEL to keep it on the road and running smoothly. Learn more about maintenance below.

Repairs on Your 1989 Mercedes-Benz 300SEL

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your Mercedes-Benz 300SEL, we’re here to help. Check out more info below about 1989 Mercedes-Benz 300SEL repairs.