When should Mercedes-Benz CLS550 spark plugs be replaced?

When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.

What do I do if I see a pool of liquid under my Mercedes-Benz CLS550?

Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.

Are some driving habits better for my Mercedes-Benz CLS550 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 have a Mercedes-Benz CLS550 tune-up done?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz CLS550.

How often do Mercedes-Benz CLS550 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 performs Mercedes-Benz CLS550 tune-ups?

Visit your local Firestone Complete Auto Care for your Mercedes-Benz CLS550 tune-up. Make an appointment online and view our latest offers to save big.

2009 Mercedes-Benz CLS550 Tune-Up & Engine Service

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Schedule Your Mercedes-Benz CLS550 Tune-Up Service Appointment

If your CLS550 is acting strange or making new noises, it could be engine tune-up time. Don’t wait until small problems get bigger. Make an appointment now.

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Enhance Mercedes-Benz CLS550 Performance with a Tune-Up

Is it tune-up time? If you're the type of driver who waits for something to go wrong with your vehicle, it could be time for a new way of doing things, especially if you drive a 2009 Mercedes-Benz CLS550. Routine engine tune-ups can bring power back to your CLS550. Tune-ups give your engine a boost in efficiency, 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’re taking vital steps toward keeping your CLS550’s engine running smoother, longer.

Mercedes-Benz CLS550 Engine Tune-Up Services

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz CLS550 engine tune-up services. The first is the standard Firestone Tune-Up. 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 CLS550. 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 CLS550. 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 CLS550 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! Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where Should I Go for My Mercedes-Benz CLS550 Tune-Up?

Schedule your next 2009 CLS550 engine tune-up service at Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from Mercedes-Benz, or make a service appointment if you notice any of these symptoms from your engine: decreased gas mileage, "rough" idling or stalling when stopped, 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.

Common Engine Tune-Up Q&A For 2009 Mercedes-Benz CLS550s

When should Mercedes-Benz CLS550 spark plugs be replaced? When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.
What do I do if I see a pool of liquid under my Mercedes-Benz CLS550? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
Are some driving habits better for my Mercedes-Benz CLS550 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 have a Mercedes-Benz CLS550 tune-up done? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz CLS550.
How often do Mercedes-Benz CLS550 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 performs Mercedes-Benz CLS550 tune-ups? Visit your local Firestone Complete Auto Care for your Mercedes-Benz CLS550 tune-up. Make an appointment online and view our latest offers to save big.

Proactive Maintenance - 2009 Mercedes-Benz CLS550

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 CLS550.

Repairs on Your 2009 Mercedes-Benz CLS550

Nothing lasts forever. Even your Mercedes-Benz CLS550's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2009 Mercedes-Benz CLS550 repairs.