Why does the check engine light come on when I start my SL320?

It's okay if your check engine light comes on when you first start your vehicle. This is just your SL320 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why does my Mercedes-Benz engine sound different?

Strange under-the-hood noises can point to problems within your Mercedes-Benz SL320 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Mercedes-Benz SL320 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my Mercedes-Benz SL320 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

What could cause my SL320 engine to suddenly stop?

Your SL320 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who fixes Mercedes-Benz SL320 engines?

For Mercedes-Benz SL320 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Reliable Repairs for 1997 Mercedes-Benz SL320 Engines

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1997 Mercedes-Benz SL320 Trim Options

Select your Mercedes-Benz SL320 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

L6/3.2L

Mercedes-Benz SL320 Repairs and Services

Nothing stays the same forever. Even your Mercedes-Benz SL320’s engine parts and components will change. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1997 Mercedes-Benz SL320 repairs.

We’re Trained to Care for Mercedes-Benz SL320 Engines

The Mercedes-Benz SL320 is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. When they do, you might find yourself searching for 1997 Mercedes-Benz SL320 engine repair or replacement parts. Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Mercedes-Benz SL320 engine will be in good hands. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1997 Mercedes-Benz SL320

An illuminated check engine light on your Mercedes-Benz SL320 is one of the first signs it's time to 'brake' for engine service. A steady or flashing check engine light could signal a serious issue with your or emission system that won't go away on its own. Causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your SL320 in for an on-board diagnostic check and our expert techs will get the root of the problem. Other signs your Mercedes-Benz SL320 engine needs some TLC are essential fluid leaks, or misfiring.

Mercedes-Benz SL320 Engine Repair

If your 1997 Mercedes-Benz SL320 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 repair can wait, we'll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. Choose Firestone Complete Auto Care for Mercedes-Benz SL320 engine repairs and you can drive easy knowing that we use Mercedes-Benz-approved parts and fluids — timing chain or belt, engine oil seal, sensors, or other parts.

Questions About 1997 Mercedes-Benz SL320 Engines

Why does the check engine light come on when I start my SL320? It's okay if your check engine light comes on when you first start your vehicle. This is just your SL320 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my Mercedes-Benz engine sound different? Strange under-the-hood noises can point to problems within your Mercedes-Benz SL320 engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Mercedes-Benz SL320 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my Mercedes-Benz SL320 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
What could cause my SL320 engine to suddenly stop? Your SL320 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who fixes Mercedes-Benz SL320 engines? For Mercedes-Benz SL320 engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.