When should Mercedes-Benz SL450 spark plugs be replaced?

Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.

What should I do if I see leaks under my SL450?

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 hard starts and stops bad for my Mercedes-Benz SL450 engine?

Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

Where can I get a Mercedes-Benz SL450 tune-up?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz SL450s.

How frequently do the fuel injectors in my Mercedes-Benz SL450 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 can I go to for Mercedes-Benz SL450 tune-ups?

When your SL450 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.

2018 Mercedes-Benz SL450 Engine Tune-Ups & Maintenance

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Schedule Your Mercedes-Benz SL450 Tune-Up Service Appointment

Tune in to tune up. Listen to your SL450 and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Enhance Mercedes-Benz SL450 Performance with a Tune-Up

Is your engine overdue for a tune-up? If you usually wait until your car has an issue to take it in for service, it might be time to change your ways, especially if you drive a 2018 Mercedes-Benz SL450. Periodic tune-ups can bring more power back to your SL450’s engine. Tune-ups help your engine start smoothly and run efficiently, so you can enjoy improved fuel economy and lower emissions. When you follow the guidelines specified by Mercedes-Benz for your vehicle’s tune-up schedule, you’re taking vital steps toward keeping your SL450’s engine running smoother, longer.

Engine Tune-Up for Mercedes-Benz SL450

The Firestone Complete Auto Care location in your community offers several Mercedes-Benz SL450 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*. A second service option replaces the air and fuel filter in your SL450. 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 SL450’s fuel injectors, throttle body, and throttle plate. This goes a long way in boosting your fuel system’s overall performance. Here’s something to remember when choosing services: the mileage and service history of your SL450 can determine what kind of service it needs. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where Should I Go for My Mercedes-Benz SL450 Tune-Up?

Come to Firestone Complete Auto Care for your next 2018 SL450 engine tune-up. Follow Mercedes-Benz's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished fuel economy, knocking noises in the engine, or a lit up check engine light on your dashboard.

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

2018 Mercedes-Benz SL450 Engine Tune-Up Q&A

When should Mercedes-Benz SL450 spark plugs be replaced? Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.
What should I do if I see leaks under my SL450? 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 hard starts and stops bad for my Mercedes-Benz SL450 engine? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Where can I get a Mercedes-Benz SL450 tune-up? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz SL450s.
How frequently do the fuel injectors in my Mercedes-Benz SL450 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 can I go to for Mercedes-Benz SL450 tune-ups? When your SL450 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 2018 Mercedes-Benz SL450

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your Mercedes-Benz SL450.

Repairs on Your 2018 Mercedes-Benz SL450

Your Mercedes-Benz SL450 runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 2018 Mercedes-Benz SL450 repairs below.