Why does the check engine light in my GL350 turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your GL350 firing up 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?

Unusual noises can signal a problem with your Mercedes-Benz GL350 engine. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to 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 GL350 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Mercedes-Benz GL350 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 can cause a GL350 engine to suddenly stop?

There are different reasons your GL350 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 can repair my Mercedes-Benz GL350 engine?

Your local Firestone Complete Auto Care has you covered with expert GL350 engine repair. Schedule an appointment today and see us at one of our thousands of locations.

Engine Repairs for Your 2012 Mercedes-Benz GL350

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2012 Mercedes-Benz GL350 Trim Options

Select your Mercedes-Benz GL350 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz GL350 parts will get older and change.

V6/3.0L

Repairs for Your 2012 Mercedes-Benz GL350

Nothing lasts forever. Even your Mercedes-Benz GL350’s engine parts and components will change. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 2012 Mercedes-Benz GL350.

We Care for Mercedes-Benz GL350 Engines

The Mercedes-Benz GL350 is respected for its reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 2012 Mercedes-Benz GL350 engine repairs. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercedes-Benz GL350 engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 2012 Mercedes-Benz GL350

If your GL350 check engine light is on, it’s time to get it looked at. 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. Possible causes can include a failing oxygen sensor, bad spark plug, issues with your catalytic converter, or an engine vacuum leak, to name a few potential sources. Bring your GL350 in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. Other signs your Mercedes-Benz GL350 engine needs some TLC are burning smells, or engine misfiring.

2012 GL350 Engine Services

If your 2012 Mercedes-Benz GL350 needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. If a service can wait, we’ll make sure you know. If it's necessary for your safety, we'll make sure you understand that, 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 2012 GL350 engine repairs and you can drive easy knowing that we use Mercedes-Benz-approved parts and fluids — serpentine belt, engine oil seal, sensors, or a different component.

2012 Mercedes-Benz GL350 Engine Q&A

Why does the check engine light in my GL350 turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your GL350 firing up 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? Unusual noises can signal a problem with your Mercedes-Benz GL350 engine. Tapping or knocking could mean you're low on oil. Whistling could mean a belt is misaligned or there's an intake leak. Squealing can be traced back to 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 GL350 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 accelerating too quickly, too soon. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Mercedes-Benz GL350 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 can cause a GL350 engine to suddenly stop? There are different reasons your GL350 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 can repair my Mercedes-Benz GL350 engine? Your local Firestone Complete Auto Care has you covered with expert GL350 engine repair. Schedule an appointment today and see us at one of our thousands of locations.