Why does the check engine light in my GL550 turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. This is just your GL550 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why is my Mercedes-Benz GL550 making engine noise?

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. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Mercedes-Benz GL550 engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still 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 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?

Reasons your GL550 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes Mercedes-Benz GL550 engines?

Your local Firestone Complete Auto Care fixes Mercedes-Benz GL550 engines. Book an appointment today! We have thousands of locations across the country.

Engine Repairs for Your 2011 Mercedes-Benz GL550

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2011 Mercedes-Benz GL550 Trim Options

Select your Mercedes-Benz GL550 trim level to learn more about Mercedes-Benz-recommended engine repair. Even Mercedes-Benz GL550 parts will get older and change.

V8/5.5L

2011 Mercedes-Benz GL550 Repair

Nothing stays the same forever. Even your Mercedes-Benz GL550's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 2011 Mercedes-Benz GL550 services.

We Care for Mercedes-Benz GL550 Engines

The Mercedes-Benz GL550 is respected for its reliability. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. If the unexpected strikes, you may search the internet frantically for quick and affordable 2011 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. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

Illuminated Check Engine Light on 2011 Mercedes-Benz GL550

An illuminated check engine light on your Mercedes-Benz GL550 is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your or emission system, and it won’t go away by ignoring it. Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your GL550 issues diagnosed and our expert techs will get the root of the problem. Other signs it's time for Mercedes-Benz GL550 engine service might include burning smells, or engine misfiring.

Mercedes-Benz GL550 Engine Repair

If your 2011 GL550 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. 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 want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for GL550 engine repairs and you can feel confident knowing that we use Mercedes-Benz-approved parts and components like the cambelt, motor oil seal, ignition coil, or other parts.

2011 Mercedes-Benz GL550 Engine Q&A

Why does the check engine light in my GL550 turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. This is just your GL550 testing its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why is my Mercedes-Benz GL550 making engine noise? 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. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Mercedes-Benz GL550 engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still 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 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? Reasons your GL550 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes Mercedes-Benz GL550 engines? Your local Firestone Complete Auto Care fixes Mercedes-Benz GL550 engines. Book an appointment today! We have thousands of locations across the country.