When should Mercedes-Benz S400 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 S400?

Don't ignore puddles of fluid under your Mercedes-Benz S400. 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 S400 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 get a tune-up for my Mercedes-Benz S400?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz S400.

How often do Mercedes-Benz S400 fuel injectors need to be 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 does Mercedes-Benz S400 tune-ups?

Visit your nearby Firestone Complete Auto Care for Mercedes-Benz S400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2012 Mercedes-Benz S400 Engine Tune-Ups & Maintenance

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Schedule Mercedes-Benz S400 Tune-Up

Tune in to tune up. Listen to your S400 and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

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Enhance Mercedes-Benz S400 Performance with a Tune-Up

Is your engine overdue for a tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, it might be time to change your ways, especially if you drive a 2012 Mercedes-Benz S400. Routine engine tune-ups can bring power back to your S400. Tune-ups help your engine start smoothly and run 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 can rest assured you’re investing in your S400’s long-term engine performance.

Mercedes-Benz S400 Engine Tune-Up Services

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz S400 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*. A second service option replaces the air and fuel filter in your S400. 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 S400's fuel injectors, throttle body, and throttle plate. This goes a long way in boosting your fuel system’s overall performance. Here’s something to remember when choosing services: the mileage and service history of your S400 can determine what kind of service it needs. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where Should I Go for My Mercedes-Benz S400 Tune-Up?

If you’re looking for 2012 S400 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, engine knocking, or an illuminated check engine light.

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

2012 Mercedes-Benz S400 Engine Tune-Up Q&A

When should Mercedes-Benz S400 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 S400? Don't ignore puddles of fluid under your Mercedes-Benz S400. 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 S400 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 get a tune-up for my Mercedes-Benz S400? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your Mercedes-Benz S400.
How often do Mercedes-Benz S400 fuel injectors need to be 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 does Mercedes-Benz S400 tune-ups? Visit your nearby Firestone Complete Auto Care for Mercedes-Benz S400 tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2012 Mercedes-Benz S400 Maintenance

Stay ahead of any potential issues with your Mercedes-Benz S400 so your car can keep pace with life! Learn more about proper maintenance for your vehicle below.

2012 Mercedes-Benz S400 Repair

Your Mercedes-Benz S400 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 2012 Mercedes-Benz S400 repairs below.