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. This is a sign that your vehicle is 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?

Unusual noises can signal a problem with your Mercedes-Benz GL550 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in my Mercedes-Benz GL550 radiator?

While it’s not recommended, you can use water in your GL550 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What can cause the engine in my GL550 to suddenly stop?

Your GL550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who can repair my Mercedes-Benz GL550 engine?

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

2015 Mercedes-Benz GL550 Engine Repair

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2015 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.

V8/4.7L

Repairs for Your 2015 Mercedes-Benz GL550

Nothing lasts forever. Even your Mercedes-Benz GL550's many parts and pieces. 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 2015 Mercedes-Benz GL550.

We Care for Mercedes-Benz GL550 Engines

Mercedes-Benz GL550 drivers trust that their GL550 will take them near and far. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. If they do, you’ll have to find a dependable 2015 Mercedes-Benz service center — quick! That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service Mercedes-Benz GL550 engines. Schedule an appointment if you're experiencing problems that could require engine repair. 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 2015 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 on or flashing could be a symptom of a serious problem in your vehicle's ignition, Causes may include a faulty oxygen sensor, bad spark plug, issues with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your GL550 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. rattling sounds, burning smells, or engine misfiring.

Engine Repairs for Your 2015 GL550

If your 2015 GL550 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We don't start working until we have your approval. If a repair can wait, we'll let you know. If it's necessary for your safety, we'll make sure you understand that, too. 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 2015 GL550 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the cambelt, oil gasket, fuses, or a different component.

Questions About 2015 Mercedes-Benz GL550 Engines

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. This is a sign that your vehicle is 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? Unusual noises can signal a problem with your Mercedes-Benz GL550 engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Mercedes-Benz engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your 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 pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in my Mercedes-Benz GL550 radiator? While it’s not recommended, you can use water in your GL550 radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What can cause the engine in my GL550 to suddenly stop? Your GL550 car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my Mercedes-Benz GL550 engine? Your local Firestone Complete Auto Care fixes Mercedes-Benz GL550 engines. Book an appointment today! We have thousands of locations across the country.