Why does the check engine light come on when I start my GL550?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your GL550 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercedes-Benz GL550 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz GL550. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage my Mercedes-Benz GL550 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in my Mercedes-Benz GL550 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 the engine in my GL550 to suddenly stop?

There are different reasons your GL550 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 GL550 engine?

For Mercedes-Benz GL550 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.

Engine Repairs for Your 2014 Mercedes-Benz GL550

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2014 Mercedes-Benz GL550 Trim Options

Select your Mercedes-Benz GL550 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V8/4.7L

Mercedes-Benz GL550 Repairs and Services

Nothing lasts forever. Even your Mercedes-Benz GL550’s engine parts and components will change. When something breaks, we're ready. Click on a repair below to learn more about 2014 Mercedes-Benz GL550 repairs.

We Know Mercedes-Benz GL550 Engines

Mercedes-Benz GL550 engines are known for their reliability. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 2014 Mercedes-Benz GL550 engine repairs. 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 GL550 engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2014 Mercedes-Benz GL550

If your GL550 check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your car’s ignition, Causes may include a faulty oxygen sensor, worn spark plug, issues with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your GL550 to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. engine pinging noises, oil leaks, or engine misfiring.

2014 GL550 Engine Services

If your 2014 Mercedes-Benz GL550 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 repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 2014 GL550 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the timing belt, engine oil seal, sensors, or other parts.

Engine Q&A 2014 Mercedes-Benz GL550

Why does the check engine light come on when I start my GL550? It's okay if your check engine light comes on when you first start your vehicle. It’s just your GL550 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercedes-Benz GL550 engine noises bad? Strange engine sounds can be a sign something’s off in your Mercedes-Benz GL550. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage my Mercedes-Benz GL550 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in my Mercedes-Benz GL550 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 the engine in my GL550 to suddenly stop? There are different reasons your GL550 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 GL550 engine? For Mercedes-Benz GL550 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.