Why does my G550’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are Mercedes-Benz G550 engine noises bad?

Strange engine sounds can be a sign something’s off in your Mercedes-Benz G550. 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 might be a sign of brake problems rather than engine issues.

What could damage my Mercedes-Benz G550 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Is it okay to put water in my Mercedes-Benz G550 radiator?

While it’s not recommended, you can use water in your G550 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 could cause my G550 engine to suddenly stop?

There are different reasons your G550 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.

Where can I go for Mercedes-Benz G550 repair?

Your local Firestone Complete Auto Care fixes Mercedes-Benz G550 engines. Book an appointment today! We have thousands of locations across the country.

2018 Mercedes-Benz G550 Engine Repair

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2018 Mercedes-Benz G550 Trim Options

Select your Mercedes-Benz G550 trim level to learn more about Mercedes-Benz-recommended engine repair. Use the following chart to find information.

V8/4.0L

2018 Mercedes-Benz G550 Repair

Nothing stays the same forever. Even your Mercedes-Benz G550's many parts and pieces. We’re here to help when something stops working. Select a repair or category to learn more about 2018 Mercedes-Benz G550 services.

We’re Trained to Care for Mercedes-Benz G550 Engines

The Mercedes-Benz G550 is respected for its reliability. You probably thought about that when you got it. However, even your trustworthy engine is subject to wear and tear. Things can go wrong on the road. If they do, you’ll have to find a dependable 2018 Mercedes-Benz service center — quick! That’s where Firestone Complete Auto Care comes in. We've serviced more than 500 million vehicles since 1926, and our technicians know Mercedes-Benz G550 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.

Illuminated Check Engine Light on 2018 Mercedes-Benz G550

An illuminated check engine light on your Mercedes-Benz G550 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, worn spark plug, a problem with your catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Bring your G550 to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. engine pinging noises, burning smells, or engine misfiring.

2018 G550 Engine Services

If your 2018 G550 engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. 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 2018 G550 engine repairs and you can drive easy knowing that we use Mercedes-Benz-approved parts and fluids — timing chain or belt, engine oil seal, ignition coil, or other parts.

2018 Mercedes-Benz G550 Engine Q&A

Why does my G550’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are Mercedes-Benz G550 engine noises bad? Strange engine sounds can be a sign something’s off in your Mercedes-Benz G550. 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 might be a sign of brake problems rather than engine issues.
What could damage my Mercedes-Benz G550 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. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Is it okay to put water in my Mercedes-Benz G550 radiator? While it’s not recommended, you can use water in your G550 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 could cause my G550 engine to suddenly stop? There are different reasons your G550 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.
Where can I go for Mercedes-Benz G550 repair? Your local Firestone Complete Auto Care fixes Mercedes-Benz G550 engines. Book an appointment today! We have thousands of locations across the country.