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How Many Gallons Of Gas Does A Mercedes GLC Hold?

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Knowing how many gallons of gas your Mercedes GLC holds is important to ensure that you don't run out while on the road. So let's look at how many gallons of fuel this luxury SUV can hold.

The Mercedes GLC has a fuel capacity of 17.4 gallons. This means that you can drive approximately 418 miles on a single gas tank. When the low fuel light comes on, you will have approximately 20-40 miles before empty.

For an SUV, the Mercedes GLC has an adequate fuel tank size. This article will take a closer look at how many miles you can expect to get out of a full tank and what the low fuel light means for this vehicle. In addition, we will answer other frequently asked questions about the Mercedes GLC, so keep reading!

Modern model of prestigious Mercedes-Benz GLC-class SUV crossover - How Many Gallons Of Gas Does A Mercedes GLC Hold

How Many Gallons Of Gas Does A Mercedes GLC Hold?

Every vehicle has a different fuel tank size depending on the make and model. The Mercedes GLC, for example, has a fuel tank that can hold up to 17.4 gallons of gasoline. This is important to know if you want to avoid running out of gas while on the road.

This means that you can drive approximately 418 miles on a single tank of gas. However, the total distance until empty varies depending on driving habits.

For example, if you are driving at a consistent speed on the interstate, you will get approximately 418 miles out of a tank. However, if you drive in stop-and-go traffic or use your air conditioning frequently, the total distance until empty will be less.

When the low fuel light comes on, you will have approximately 20-40 miles before empty. Keep in mind that this also varies depending on the driving habits and conditions.

Mercedes-Benz GLC-Class is a small luxury SUV front view

What Type Of Gas Does The Mercedes GLC Take?

Mercedes vehicles, including the GLC, require premium fuel. The reason is that the Mercedes engines have high compression ratios to achieve better fuel economy and performance.

It may be tempting to use regular gas because it is cheaper than premium. However, putting a lower octane fuel in your car can cause knocking and pinging noises.

This is because the fuel-air mixture is too lean, and the spark plugs are detonating the fuel earlier than they should be.

In addition, running a Mercedes on a lower octane fuel can damage the engine over time. So, it is important to always use premium fuel in your Mercedes GLC.

Colorado gas prices at a pump with press buttons - regular, mid grade and premium unleaded

What Happens If I Put Regular Fuel In Mercedes GLC?

If you accidentally put regular fuel in your Mercedes GLC, don't panic. Doing this one time will not damage your vehicle. In this case, drive the vehicle until the gas tank is close to empty and then refill the tank with premium gas.

The computer system will do its best to adjust to the lower grade fuel, but it may not be able to completely adjust. So, you may see a decrease in performance or gas mileage until you can refill with premium gas.

It is important not to make a habit of using the wrong fuel in Mercedes engines. Not only will it lower the lifespan of the engine but you could be looking at costly repairs down the road.

Car fueling at gas station. Refuel fill up with petrol gasoline.

How To Open A Gas Tank On Mercedes GLC

The Mercedes GLC gas cap release is different than other vehicles on the market. You won't find a gas tank release inside of the vehicle. Instead, you will need to exit the vehicle and push the gas tank lid to open it.

Once the gas tank lid is open, you can access the gas cap to start fueling. When you are finished, replace the gas cap to secure it and close the gas tank lid. Make sure that the gas tank lid clicks to ensure that it is closed.

How Do I Know How Many Miles Until Empty On A Mercedes?

You can toggle through the settings on your instrument cluster to see how many miles you have until empty. Depending on the model of your Mercedes, the steering wheel has buttons on the left or right side where you can adjust the settings.

Use the up and down arrow keys to scroll through the options until you see "Miles Until Empty." This will tell you how many miles you can drive before needing to refuel.

What Is The Average Fuel Economy For A Mercedes GLC?

The Mercedes GLC has an EPA-estimated fuel economy of 22 city/29 highway. If you want to get the most out of your fuel, avoid having a heavy foot. Instead, accelerate slowly and brake gently to improve your fuel economy.

Can You Overfill A Gas Tank?

You can overfill a gas tank, but it is not recommended to do so. It can cause the fuel to overflow and spill onto the ground if you do. In addition, this wasted gasoline can pollute the environment, and it is a fire hazard.

In addition, overfilling your gas tank can damage the car's emission system. Fuel vapor is released from the tank as gasoline is used. If the tank is overfilled, the vapor pressure will be too high and can cause damage to the emission system.

Fuel pumps have an automatic shutoff when you are pumping gas. So when the fuel pump stops on its own, there is no need to add additional fuel. 

How To Conserve Fuel In A Low-Fuel Condition

If you are driving your Mercedes GLC and the low fuel light comes on, it is important to find a gas station as soon as possible, as you only have 20-40 miles left before the tank is empty. To help you make it to the gas station in time, follow these tips to save fuel:

Locate The Nearest Gas Station

If you aren't familiar with the area you are driving in, use the car's navigation system to find the nearest gas station. This will save you time and fuel by not having to search for the station on your own.

If you don't have navigation in your vehicle, use an online map or app to find the nearest station.

Turn Off The Air Conditioning

For the air conditioning to work, it takes energy from the engine. As a result, the air conditioning is actually using the vehicle's fuel to run. In the case of low fuel, turn the air conditioning off to save fuel.

Roll Up The Windows

Even though the air conditioning is off, avoid rolling the windows down. The windows should be up to reduce drag. The more resistance the vehicle has, the more fuel it will have to use.

Don't Use Unnecessary Electronics

All the electronics in the vehicle require energy from the alternator, which is powered by the engine. So, if you are low on fuel, avoid using unnecessary electronics such as the radio or heated seats.

Check For Traffic Updates

Before heading to the gas station, check for traffic updates. This will help you avoid any traffic jams or delays that could use up more of your fuel.

Avoid Idling

If you do hit traffic and are stopped at a light or train track for longer than 30 seconds, turn the engine off. This will save fuel that would be wasted by idling.

Maintain Constant Speed

If you can, maintain a constant speed. When the car is constantly accelerating and decelerating, it uses more fuel than when it is driving at a steady speed. To help maintain a constant speed, use the cruise control feature if your vehicle has it.

Drive Downhill (If Possible)

If you know the road layouts well, try to find stretches of road downhill. When the car is going downhill, it uses less fuel than when it is going uphill.

This is because you can use the momentum of the vehicle to help it move downhill instead of using the gas pedal.

out of petrol

Final Thoughts

The Mercedes GLC is a great vehicle with a lot of features that drivers love. However, you can do a few things to get the most out of your tank when it comes to fuel economy.

By following these simple tips, you can improve your Mercedes GLC fuel economy and make sure that you are getting the most out of your vehicle.

Before you go, be sure to take a look at these other posts:

Does The Mercedes C-Class Have Massage Seats?

How Long Does a Mercedes C Class Last?

Does A Mercedes Sprinter Have A Cambelt?