What happens if my Mercedes-Benz SL400 spark plugs fail?

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 do I do if I see a pool of liquid under my Mercedes-Benz SL400?

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 SL400 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.

Where can I have a Mercedes-Benz SL400 tune-up done?

At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz SL400 service, maintenance, and repairs.

How frequently do I need to get my Mercedes-Benz SL400 fuel injectors cleaned?

Factors like fuel type and driving conditions can affect how frequently you need to clean your SL400 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 can I go to for Mercedes-Benz SL400 tune-ups?

When your SL400 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 2016 Mercedes-Benz SL400

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Schedule Your Mercedes-Benz SL400 Tune-Up Service Appointment

If your SL400 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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Tune-Ups to Help Your Mercedes-Benz SL400 Run Better

Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, it could be time for a new way of doing things, particularly if you want to keep your 2016 Mercedes-Benz SL400 in tip-top shape. Routine engine tune-ups can bring power back to your SL400. 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 follow the guidelines specified by Mercedes-Benz for your vehicle’s tune-up schedule, you invest in your SL400's long-term health and engine performance.

Mercedes-Benz SL400 Engine Tune-Up Services

Your local Firestone Complete Auto Care offers a range of engine tune-up services for your 2016 Mercedes-Benz SL400. The standard Firestone Tune-Up is one service option. 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 SL400. 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 SL400's fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your SL400'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! Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where Should I Go for My Mercedes-Benz SL400 Tune-Up?

Schedule your next 2016 SL400 engine tune-up service at Firestone Complete Auto Care. Follow Mercedes-Benz's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished fuel economy, 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 2016 Mercedes-Benz SL400 Engine Tune-Ups

What happens if my Mercedes-Benz SL400 spark plugs fail? 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 do I do if I see a pool of liquid under my Mercedes-Benz SL400? 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 SL400 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.
Where can I have a Mercedes-Benz SL400 tune-up done? At your closest Firestone Complete Auto Care! Our experienced technicians offer Mercedes-Benz SL400 service, maintenance, and repairs.
How frequently do I need to get my Mercedes-Benz SL400 fuel injectors cleaned? Factors like fuel type and driving conditions can affect how frequently you need to clean your SL400 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 can I go to for Mercedes-Benz SL400 tune-ups? When your SL400 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.

2016 Mercedes-Benz SL400 Maintenance

We know it’s not just a car, it’s your car. We’ll help you properly maintain your Mercedes-Benz SL400 to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 2016 Mercedes-Benz SL400

Your car takes care of you, and we’ll take care of your car. When it’s time for a repair on your Mercedes-Benz SL400, we’re here to help. Check out more info below about 2016 Mercedes-Benz SL400 repairs.