2012 Mercedes-Benz GL550 Engine Tune-Ups & Maintenance

Schedule Your Mercedes-Benz GL550 Tune-Up Service Appointment

If your GL550 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.

Tune-Ups to Help Your Mercedes-Benz GL550 Run Better

Is your engine overdue for a tune-up? If you tend to ignore your car until something goes wrong, now is the time to work on that habit, especially if you drive a 2012 Mercedes-Benz GL550. Periodic tune-ups can bring more power back to your GL550’s engine. Tune-ups help your engine start smoothly and run efficiently, which can lead to lower emission levels and better fuel economy. 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.

Engine Tune-Up for Mercedes-Benz GL550

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 2012 Mercedes-Benz GL550. The standard Firestone Tune-Up is one service option. 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 GL550. 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 GL550. This can improve your fuel system’s performance (and therefore, your engine’s performance). Keep in mind that your GL550's mileage and maintenance history can uniquely impact its tune-up needs. 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 2012 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: decreased gas mileage, "rough" idling or stalling when stopped, engine knocking, or an illuminated check engine light.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

Questions About 2012 Mercedes-Benz GL550 Engine Tune-Ups

  • Will it hurt my Mercedes-Benz GL550 to drive with old spark plugs? 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 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 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 GL550 tune-up done? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz GL550.
  • How frequently do I need to get my Mercedes-Benz GL550 fuel injectors cleaned? The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your Mercedes-Benz owner’s manual for exact guidelines.
  • Who can I go to for Mercedes-Benz GL550 tune-ups? When your GL550 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.

Maintenance for Your 2012 Mercedes-Benz GL550

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 GL550.

2012 Mercedes-Benz GL550 Repair

Nothing lasts forever. Even your Mercedes-Benz GL550's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2012 Mercedes-Benz GL550 repairs.