Will it hurt my Mercedes-Benz 350SDL 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 does a puddle underneath my Mercedes-Benz 350SDL mean?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

Are some driving habits better for my Mercedes-Benz 350SDL engine than others?

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 get a Mercedes-Benz 350SDL tune-up?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz 350SDL service, maintenance, or repairs, our technicians can get the job done.

How often do Mercedes-Benz 350SDL fuel injectors 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 350SDL tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz 350SDL tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Engine Tune-Up Service for Your 1990 Mercedes-Benz 350SDL

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Schedule an Appointment for Your Mercedes-Benz 350SDL Tune-Up

Tune in to tune up. Listen to your 350SDL and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Tune-Ups to Help Your Mercedes-Benz 350SDL Run Better

Is it tune-up time? If you usually wait until your car has an issue to take it in for service, now is the time to work on that habit, particularly if you want to keep your 1990 Mercedes-Benz 350SDL in tip-top shape. Regular engine tune-ups can optimize your 350SDL’s power on the road. They're designed to help your engine start easier and run more 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 350SDL's long-term health and engine performance.

Routine Engine Tune-Up Service for Your Mercedes-Benz 350SDL

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz 350SDL engine tune-up services. The first is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. The second service focuses on your 350SDL's filters, specifically replacing the air filter and fuel filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your 350SDL. This goes a long way in boosting your fuel system’s overall performance. Consider this when choosing a tune-up service for your 350SDL: your vehicle’s maintenance record and mileage can determine which service is best. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where to Get a Mercedes-Benz 350SDL Tune-Up

If you’re looking for 1990 350SDL engine tune-up services, head to Firestone Complete Auto Care. Follow Mercedes-Benz's recommended maintenance schedule or book an appointment as soon as you notice one of the following: decreased gas mileage, "rough" idling or stalling when stopped, engine knocking, or an illuminated check engine light.

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

Questions About 1990 Mercedes-Benz 350SDL Engine Tune-Ups

Will it hurt my Mercedes-Benz 350SDL 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 does a puddle underneath my Mercedes-Benz 350SDL mean? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are some driving habits better for my Mercedes-Benz 350SDL engine than others? 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 get a Mercedes-Benz 350SDL tune-up? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz 350SDL service, maintenance, or repairs, our technicians can get the job done.
How often do Mercedes-Benz 350SDL fuel injectors 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 350SDL tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz 350SDL tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

1990 Mercedes-Benz 350SDL Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercedes-Benz 350SDL to keep it on the road and running smoothly. Learn more about maintenance below.

Repairs on Your 1990 Mercedes-Benz 350SDL

Nothing lasts forever. Even your Mercedes-Benz 350SDL's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1990 Mercedes-Benz 350SDL repairs.