What happens if my Mercedes-Benz 300SL spark plugs fail?

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 300SL?

Don't ignore puddles of fluid under your Mercedes-Benz 300SL. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.

Are some driving habits better for my Mercedes-Benz 300SL engine than others?

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 get a tune-up for my Mercedes-Benz 300SL?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz 300SL service, maintenance, or repairs, our technicians can get the job done.

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

The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Mercedes-Benz owner’s manual for exact guidelines.

Who can I go to for Mercedes-Benz 300SL tune-ups?

Visit your local Firestone Complete Auto Care for your Mercedes-Benz 300SL tune-up. Make an appointment online and view our latest offers to save big.

1990 Mercedes-Benz 300SL Engine Tune-Ups & Maintenance

Get a Tune-Up

Schedule Your Mercedes-Benz 300SL Tune-Up Service Appointment

Keep your 300SL running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.

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Tune Into Your Mercedes-Benz 300SL

Is your engine overdue for a tune-up? 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, especially if you want your 1990 Mercedes-Benz 300SL’s engine to last for a long time. Routine engine tune-ups can bring power back to your 300SL. 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 get routine engine tune-ups based on Mercedes-Benz's recommendations, you’re taking vital steps toward keeping your 300SL’s engine running smoother, longer.

Engine Tune-Up for Mercedes-Benz 300SL

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz 300SL 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*. Another service option pays special attention to the filters in your 300SL. Specifically, we replace the fuel filter and air 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 300SL. This goes a long way in boosting your fuel system’s overall performance. Keep in mind that your 300SL'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. 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 300SL

Schedule your next 1990 300SL engine tune-up service at 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: shaking while the engine is idling, poor fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 1990 Mercedes-Benz 300SL Engine Tune-Ups

What happens if my Mercedes-Benz 300SL spark plugs fail? 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 300SL? Don't ignore puddles of fluid under your Mercedes-Benz 300SL. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.
Are some driving habits better for my Mercedes-Benz 300SL engine than others? 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 get a tune-up for my Mercedes-Benz 300SL? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz 300SL service, maintenance, or repairs, our technicians can get the job done.
How frequently do the fuel injectors in my Mercedes-Benz 300SL need to be cleaned? The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Mercedes-Benz owner’s manual for exact guidelines.
Who can I go to for Mercedes-Benz 300SL tune-ups? Visit your local Firestone Complete Auto Care for your Mercedes-Benz 300SL tune-up. Make an appointment online and view our latest offers to save big.

1990 Mercedes-Benz 300SL Maintenance

Stay ahead of any potential issues with your Mercedes-Benz 300SL so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

1990 Mercedes-Benz 300SL Repair

Nothing lasts forever. Even your Mercedes-Benz 300SL's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 1990 Mercedes-Benz 300SL repairs.