What happens if my Mercedes-Benz GLS550 spark plugs fail?

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 does a puddle underneath my Mercedes-Benz GLS550 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.

Are some driving habits better for my Mercedes-Benz GLS550 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.

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

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz GLS550.

How frequently do I need to get my Mercedes-Benz GLS550 fuel injectors cleaned?

The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.

Who offers Mercedes-Benz GLS550 tune-ups?

Visit your local Firestone Complete Auto Care for your Mercedes-Benz GLS550 tune-up. Make an appointment online and view our latest offers to save big.

2018 Mercedes-Benz GLS550 Tune-Up & Engine Service

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Schedule Mercedes-Benz GLS550 Tune-Up

Keep your GLS550 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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Tune-Ups to Help Your Mercedes-Benz GLS550 Run Better

Is it tune-up time? 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 2018 Mercedes-Benz GLS550. Regular engine tune-ups can optimize your GLS550’s power on the road. Tune-ups give your engine a boost in efficiency, which can lead to lower emission levels and better fuel economy. When you get routine engine tune-ups based on Mercedes-Benz's recommendations, you can rest assured you’re investing in your GLS550’s long-term engine performance.

Engine Tune-Up for Mercedes-Benz GLS550

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz GLS550 engine tune-up services. The first 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*. A second service option replaces the air and fuel filter in your GLS550. 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 goes a long way in boosting your fuel system’s overall performance. Consider this when choosing a tune-up service for your GLS550: your vehicle’s maintenance record and mileage can determine which service is best. 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 Mercedes-Benz GLS550 Tune-Up

Schedule your next 2018 GLS550 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: stalling or shaky idling when you’re stopped, diminished fuel economy, engine knocking, or an illuminated check engine light.

*Ask a Firestone Complete Auto Care teammate about full terms and conditions for warranties.

Questions About 2018 Mercedes-Benz GLS550 Engine Tune-Ups

What happens if my Mercedes-Benz GLS550 spark plugs fail? 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 does a puddle underneath my Mercedes-Benz GLS550 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.
Are some driving habits better for my Mercedes-Benz GLS550 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.
I need a Mercedes-Benz GLS550 tune-up. Where can I get on? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz GLS550.
How frequently do I need to get my Mercedes-Benz GLS550 fuel injectors cleaned? The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.
Who offers Mercedes-Benz GLS550 tune-ups? Visit your local Firestone Complete Auto Care for your Mercedes-Benz GLS550 tune-up. Make an appointment online and view our latest offers to save big.

2018 Mercedes-Benz GLS550 Maintenance

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 GLS550.

Repairs on Your 2018 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 2018 Mercedes-Benz GLS550 repairs below.