Will it hurt my Mercedes-Benz GLS450 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 do I do if I see a pool of liquid under my Mercedes-Benz GLS450?

Don't ignore puddles of fluid under your Mercedes-Benz GLS450. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.

Are some driving habits better for my Mercedes-Benz GLS450 engine than others?

Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

Where can I have a Mercedes-Benz GLS450 tune-up done?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz GLS450 service, maintenance, and repairs.

How often should I clean my Mercedes-Benz GLS450 fuel injectors?

Factors like fuel type and driving conditions can affect how frequently you need to clean your GLS450 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 offers Mercedes-Benz GLS450 tune-ups?

When your GLS450 needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Engine Tune-Up Service for Your 2020 Mercedes-Benz GLS450

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Schedule Mercedes-Benz GLS450 Tune-Up

If your GLS450 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 GLS450 Performance with a Tune-Up

Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, now is the time to work on that habit, particularly if you want to keep your 2020 Mercedes-Benz GLS450 in tip-top shape. Regular engine tune-ups can optimize your GLS450’s power on the road. They're designed to help your engine start easier and run more efficiently, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you get routine engine tune-ups based on Mercedes-Benz's recommendations, you’re taking vital steps toward keeping your GLS450’s engine running smoother, longer.

Mercedes-Benz GLS450 Engine Tune-Up Services

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 2020 Mercedes-Benz GLS450. The first 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 GLS450's filters, specifically replacing the air filter and fuel 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 GLS450. The result? Restored fuel system performance. Keep in mind that your GLS450'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. Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where to Get a Tune-Up for Your Mercedes-Benz GLS450

If you’re looking for 2020 GLS450 engine tune-up services, head to 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.

Questions About 2020 Mercedes-Benz GLS450 Engine Tune-Ups

Will it hurt my Mercedes-Benz GLS450 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 do I do if I see a pool of liquid under my Mercedes-Benz GLS450? Don't ignore puddles of fluid under your Mercedes-Benz GLS450. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.
Are some driving habits better for my Mercedes-Benz GLS450 engine than others? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Where can I have a Mercedes-Benz GLS450 tune-up done? At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz GLS450 service, maintenance, and repairs.
How often should I clean my Mercedes-Benz GLS450 fuel injectors? Factors like fuel type and driving conditions can affect how frequently you need to clean your GLS450 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 offers Mercedes-Benz GLS450 tune-ups? When your GLS450 needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Proactive Maintenance - 2020 Mercedes-Benz GLS450

Stay ahead of any potential issues with your Mercedes-Benz GLS450 so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

Repairs on Your 2020 Mercedes-Benz GLS450

Nothing lasts forever. Even your Mercedes-Benz GLS450's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2020 Mercedes-Benz GLS450 repairs.