Will it hurt my Mercedes-Benz SL400 to drive with old spark plugs?

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 do I do if I see a pool of liquid under my Mercedes-Benz SL400?

Don't ignore puddles of fluid under your Mercedes-Benz SL400. 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 SL400 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 SL400?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz SL400 service, maintenance, or repairs, our technicians can get the job done.

How often do Mercedes-Benz SL400 fuel injectors need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your SL400 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 performs Mercedes-Benz SL400 tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz SL400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Engine Tune-Up Service for Your 2015 Mercedes-Benz SL400

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Schedule Your Mercedes-Benz SL400 Tune-Up Service Appointment

Tune in to tune up. Listen to your SL400 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 SL400 Performance with a Tune-Up

Is it time for an engine tune-up? If you usually wait until your car has an issue to take it in for service, it could be time for a new way of doing things, particularly if you want to keep your 2015 Mercedes-Benz SL400 in tip-top shape. Periodic tune-ups can bring more power back to your SL400’s engine. Tune-ups give your engine a boost in efficiency, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you get routine engine tune-ups based on Mercedes-Benz's recommendations, you invest in your SL400's long-term health and engine performance.

Routine Engine Tune-Up Service for Your Mercedes-Benz SL400

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz SL400 engine tune-up services. The standard Firestone Tune-Up is one service option. 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 SL400. 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 SL400. This can improve your fuel system’s performance (and therefore, your engine’s performance). Keep in mind that your SL400's mileage and maintenance history can uniquely impact its tune-up 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 Should I Go for My Mercedes-Benz SL400 Tune-Up?

Come to Firestone Complete Auto Care for your next 2015 SL400 engine tune-up. 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, knocking noises in the engine, or a lit up check engine light on your dashboard.

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

Common Engine Tune-Up Q&A For 2015 Mercedes-Benz SL400s

Will it hurt my Mercedes-Benz SL400 to drive with old spark plugs? 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 do I do if I see a pool of liquid under my Mercedes-Benz SL400? Don't ignore puddles of fluid under your Mercedes-Benz SL400. 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 SL400 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 SL400? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz SL400 service, maintenance, or repairs, our technicians can get the job done.
How often do Mercedes-Benz SL400 fuel injectors need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your SL400 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 performs Mercedes-Benz SL400 tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz SL400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2015 Mercedes-Benz SL400 Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercedes-Benz SL400 to keep it on the road and running smoothly. Learn more about maintenance below.

Repairs on Your 2015 Mercedes-Benz SL400

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 SL400, we’re here to help. Check out more info below about 2015 Mercedes-Benz SL400 repairs.