Will it hurt my Mercedes-Benz SL320 to drive with old spark plugs?

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 should I do if I see leaks under my SL320?

Don't ignore puddles of fluid under your Mercedes-Benz SL320. 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 SL320 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 SL320?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz SL320s.

How frequently do the fuel injectors in my Mercedes-Benz SL320 need to be cleaned?

There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.

Who offers Mercedes-Benz SL320 tune-ups?

Visit your local Firestone Complete Auto Care for your Mercedes-Benz SL320 tune-up. Make an appointment online and view our latest offers to save big.

1994 Mercedes-Benz SL320 Tune-Up & Engine Service

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Schedule an Appointment for Your Mercedes-Benz SL320 Tune-Up

Keep your SL320 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 Into Your Mercedes-Benz SL320

Is it time for an engine 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, particularly if you want to keep your 1994 Mercedes-Benz SL320 in tip-top shape. Periodic tune-ups can bring more power back to your SL320’s engine. Tune-ups give your engine a boost in efficiency, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you take your car for regular engine tune-ups as recommended by Mercedes-Benz, you invest in your SL320's long-term health and engine performance.

Routine Engine Tune-Up Service for Your Mercedes-Benz SL320

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to Mercedes-Benz SL320 engine tune-up services. The standard Firestone Tune-Up is one service option. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your SL320. Specifically, we replace the fuel filter and air filter. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your SL320’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 SL320 can determine what kind of service it needs. 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 Should I Go for My Mercedes-Benz SL320 Tune-Up?

Schedule your next 1994 SL320 engine tune-up service at 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.

1994 Mercedes-Benz SL320 Engine Tune-Up Q&A

Will it hurt my Mercedes-Benz SL320 to drive with old spark plugs? 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 should I do if I see leaks under my SL320? Don't ignore puddles of fluid under your Mercedes-Benz SL320. 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 SL320 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 SL320? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair Mercedes-Benz SL320s.
How frequently do the fuel injectors in my Mercedes-Benz SL320 need to be cleaned? There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.
Who offers Mercedes-Benz SL320 tune-ups? Visit your local Firestone Complete Auto Care for your Mercedes-Benz SL320 tune-up. Make an appointment online and view our latest offers to save big.

1994 Mercedes-Benz SL320 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 SL320.

Repairs on Your 1994 Mercedes-Benz SL320

Your Mercedes-Benz SL320 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 1994 Mercedes-Benz SL320 repairs below.