When should Mercedes-Benz GLS550 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 should I do if I see leaks under my GLS550?

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.

What do hard starts and stops do to my GLS550 engine?

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.

I need a Mercedes-Benz GLS550 tune-up. Where can I get on?

At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz GLS550 service, maintenance, or repairs, our technicians can get the job done.

How often do Mercedes-Benz GLS550 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 does Mercedes-Benz GLS550 tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz GLS550 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2019 Mercedes-Benz GLS550 Tune-Up & Engine Service

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Schedule an Appointment for Your Mercedes-Benz GLS550 Tune-Up

If your GLS550 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.

Schedule an Appointment

Tune Into Your Mercedes-Benz GLS550

Is it time for an engine tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, now is the time to work on that habit, particularly if you want to keep your 2019 Mercedes-Benz GLS550 in tip-top shape. Regular engine tune-ups can optimize your GLS550’s power on the road. They're designed to help your engine start easier and run more efficiently, so you can enjoy improved fuel economy and lower emissions. When you get routine engine tune-ups based on Mercedes-Benz's recommendations, you invest in your GLS550's long-term health and engine performance.

Engine Tune-Up for Mercedes-Benz GLS550

The Firestone Complete Auto Care location in your community offers several Mercedes-Benz GLS550 engine tune-up services. One option is the standard Firestone Tune-Up. This includes the installation of new spark plugs and a visual inspection of your engine’s components, plus a lifetime warranty on parts*. The second service focuses on your GLS550's filters, specifically replacing the air filter and fuel filter. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your GLS550's fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Keep in mind that your GLS550's mileage and maintenance history can uniquely impact its tune-up 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 to Get a Tune-Up for Your Mercedes-Benz GLS550

If you’re looking for 2019 GLS550 engine tune-up services, head to Firestone Complete Auto Care. 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, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

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

2019 Mercedes-Benz GLS550 Engine Tune-Up Q&A

When should Mercedes-Benz GLS550 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 should I do if I see leaks under my GLS550? 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.
What do hard starts and stops do to my GLS550 engine? 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.
I need a Mercedes-Benz GLS550 tune-up. Where can I get on? At your nearby Firestone Complete Auto Care! Whether you need Mercedes-Benz GLS550 service, maintenance, or repairs, our technicians can get the job done.
How often do Mercedes-Benz GLS550 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 does Mercedes-Benz GLS550 tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz GLS550 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 2019 Mercedes-Benz GLS550

Stay ahead of any potential issues with your Mercedes-Benz GLS550 so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

Repair Service for Your 2019 Mercedes-Benz GLS550

Your Mercedes-Benz GLS550 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 2019 Mercedes-Benz GLS550 repairs below.