Will it hurt my Mercedes-Benz CLS400 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 should I do if I see leaks under my CLS400?

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 CLS400 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 have a Mercedes-Benz CLS400 tune-up done?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz CLS400 service, maintenance, or repairs, our technicians can get the job done.

How frequently do the fuel injectors in my Mercedes-Benz CLS400 need to be cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your CLS400 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 does Mercedes-Benz CLS400 tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz CLS400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2017 Mercedes-Benz CLS400 Engine Tune-Ups & Maintenance

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Schedule Mercedes-Benz CLS400 Tune-Up

Keep your CLS400 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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Enhance Mercedes-Benz CLS400 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, now is the time to work on that habit, especially if you drive a 2017 Mercedes-Benz CLS400. Regular engine tune-ups can optimize your CLS400’s power on the road. Tune-ups give your engine a boost in efficiency, so you can enjoy improved fuel economy and lower emissions. When you get routine engine tune-ups based on Mercedes-Benz's recommendations, you’re taking vital steps toward keeping your CLS400’s engine running smoother, longer.

Mercedes-Benz CLS400 Engine Tune-Up Services

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz CLS400 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*. The second service focuses on your CLS400's filters, specifically replacing the air filter and fuel filter. 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 CLS400’s fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Here’s something to remember when choosing services: the mileage and service history of your CLS400 can determine what kind of service it 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 to Get a Mercedes-Benz CLS400 Tune-Up

Come to Firestone Complete Auto Care for your next 2017 CLS400 engine tune-up. 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 2017 Mercedes-Benz CLS400 Engine Tune-Ups

Will it hurt my Mercedes-Benz CLS400 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 should I do if I see leaks under my CLS400? 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 CLS400 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 have a Mercedes-Benz CLS400 tune-up done? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz CLS400 service, maintenance, or repairs, our technicians can get the job done.
How frequently do the fuel injectors in my Mercedes-Benz CLS400 need to be cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your CLS400 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 does Mercedes-Benz CLS400 tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz CLS400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 2017 Mercedes-Benz CLS400

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 CLS400.

Repair Service for Your 2017 Mercedes-Benz CLS400

Nothing lasts forever. Even your Mercedes-Benz CLS400's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2017 Mercedes-Benz CLS400 repairs.