Will it hurt my Mercedes-Benz GL550 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 does a puddle underneath my Mercedes-Benz GL550 mean?

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.

What do hard starts and stops do to my GL550 engine?

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 GL550?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz GL550 service, maintenance, or repairs, our technicians can get the job done.

How often do Mercedes-Benz GL550 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 offers Mercedes-Benz GL550 tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz GL550 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Engine Tune-Up Service for Your 2009 Mercedes-Benz GL550

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Schedule Your Mercedes-Benz GL550 Tune-Up Service Appointment

Keep your GL550 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 GL550 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 2009 Mercedes-Benz GL550. Routine engine tune-ups can bring power back to your GL550. 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 take your car for regular engine tune-ups as recommended by Mercedes-Benz, you invest in your GL550's long-term health and engine performance.

Mercedes-Benz GL550 Engine Tune-Up Services

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 2009 Mercedes-Benz GL550. One option 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 GL550. Specifically, we replace the fuel filter and air 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 GL550’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Consider this when choosing a tune-up service for your GL550: your vehicle’s maintenance record and mileage can determine which service is best. If you’re not sure what services are the best fit for your car, let us help! Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.

Where to Get a Mercedes-Benz GL550 Tune-Up

If you’re looking for 2009 GL550 engine tune-up services, head to 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.

Common Engine Tune-Up Q&A For 2009 Mercedes-Benz GL550s

Will it hurt my Mercedes-Benz GL550 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 does a puddle underneath my Mercedes-Benz GL550 mean? 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.
What do hard starts and stops do to my GL550 engine? 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 GL550? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz GL550 service, maintenance, or repairs, our technicians can get the job done.
How often do Mercedes-Benz GL550 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 offers Mercedes-Benz GL550 tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz GL550 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 2009 Mercedes-Benz GL550

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercedes-Benz GL550 to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 2009 Mercedes-Benz GL550

Your Mercedes-Benz GL550 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 2009 Mercedes-Benz GL550 repairs below.