Why does my S320’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. This is just your S320 testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Why does my Mercedes-Benz engine sound different?

Unusual noises can signal a problem with your Mercedes-Benz S320 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S320 engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I put water in my Mercedes-Benz S320 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your S320 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a S320 engine to suddenly stop?

There are different reasons your S320 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who repairs Mercedes-Benz S320 engines?

Your local Firestone Complete Auto Care fixes Mercedes-Benz S320 engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 1999 Mercedes-Benz S320

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1999 Mercedes-Benz S320 Trim Options

Select your Mercedes-Benz S320 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

L6/3.2L

1999 Mercedes-Benz S320 Repair

Nothing stays the same forever. Even your Mercedes-Benz S320’s engine parts and components will change. We’re here to help when something stops working. Select a repair or category to learn more about 1999 Mercedes-Benz S320 services.

We Care for Mercedes-Benz S320 Engines

Mercedes-Benz S320 drivers trust that their S320 will take them near and far. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Things can go sideways sometimes. When they do, you might find yourself searching for 1999 Mercedes-Benz S320 engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Mercedes-Benz S320 engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Illuminated Check Engine Light on 1999 Mercedes-Benz S320

As soon as your S320 check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your vehicle's ignition, Possible causes can include a failing oxygen sensor, worn spark plug, a clogged catalytic converter, or a leaking engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your S320 issues diagnosed and we'll determine exactly why your check engine light is on. engine pinging noises, essential fluid leaks, or engine misfiring.

Engine Repairs for Your 1999 S320

If your 1999 Mercedes-Benz S320 needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 1999 S320 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the cambelt, engine oil seal, sensors, or another part.

Engine Q&A 1999 Mercedes-Benz S320

Why does my S320’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is just your S320 testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why does my Mercedes-Benz engine sound different? Unusual noises can signal a problem with your Mercedes-Benz S320 engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Mercedes-Benz S320 engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I put water in my Mercedes-Benz S320 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your S320 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a S320 engine to suddenly stop? There are different reasons your S320 vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who repairs Mercedes-Benz S320 engines? Your local Firestone Complete Auto Care fixes Mercedes-Benz S320 engines. Book an appointment today! We have thousands of locations across the country.