Why does the check engine light in my G550 turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your G550 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 is my Mercedes-Benz G550 making engine noise?

Unusual noises can signal a problem with your Mercedes-Benz G550 engine. Tapping or knocking could mean you need an oil change. 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 a sign of brake problems rather than engine issues.

What could damage my Mercedes-Benz G550 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my Mercedes-Benz G550 radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your G550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my G550 engine to suddenly stop?

Your G550 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 G550 engine?

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

Engine Repairs for Your 2021 Mercedes-Benz G550

Learn about

2021 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.

2021 Mercedes-Benz G550 Repair

Nothing stays the same forever. Even your Mercedes-Benz G550's many parts and pieces. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 2021 Mercedes-Benz G550 repairs.

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

Mercedes-Benz G550 drivers trust that their G550 will take them near and far. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 2021 Mercedes-Benz G550 engine repair or replacement parts. 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 G550 engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. 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 2021 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 on or flashing could be a symptom of a serious problem in your car’s ignition, Causes may include a faulty oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, to name a few possible causes. Bring your G550 in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. engine rattling, oil leaks, or a sinking feeling that something’s wrong.

Engine Repairs for Your 2021 G550

When your Mercedes-Benz G550 engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. We never do any work without your sign-off. 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 seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for Mercedes-Benz G550 engine repairs and you can feel good knowing that we only use Mercedes-Benz-compliant replacement parts such as the timing chain or belt, valve guide seal, sensors, or another part.

2021 Mercedes-Benz G550 Engine Q&A

Why does the check engine light in my G550 turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. It’s just your G550 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 is my Mercedes-Benz G550 making engine noise? Unusual noises can signal a problem with your Mercedes-Benz G550 engine. Tapping or knocking could mean you need an oil change. 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 a sign of brake problems rather than engine issues.
What could damage my Mercedes-Benz G550 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 accelerating too quickly, too soon. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my Mercedes-Benz G550 radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your G550 when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my G550 engine to suddenly stop? Your G550 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 G550 engine? Your local Firestone Complete Auto Care fixes Mercedes-Benz G550 engines. Book an appointment today! We have thousands of locations across the country.