26 MPG combined won’t win any fuel economy awards, but for the 2021 Mercedes-Benz GLB250, it’s a reasonable compromise. This isn’t a hybrid or an EV. It’s a small, surprisingly practical, luxury SUV aimed at young families and urban dwellers who need cargo space and a touch of premium style. These buyers prioritize flexibility and image over fuel efficiency, but they still want decent mileage.

City and highway performance

The GLB250’s 2.0L turbocharged four-cylinder engine, paired with an 8-speed automatic transmission, gets different fuel economy depending on where you drive. In the city, expect around 23 MPG, which is typical for stop-and-go driving. On the highway, the GLB250 can achieve approximately 31 MPG. That’s because of optimized gearing and reduced engine load at cruising speeds. The transmission is responsive enough for confident merging and passing. The all-wheel-drive version will likely have slightly lower fuel economy than the front-wheel-drive model, but the difference is small.

Annual fuel cost

According to EPA estimates, the annual fuel cost for the 2021 Mercedes-Benz GLB250 is $2,250. That’s based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will depend on your driving habits, local fuel prices, and whether you use premium fuel as recommended. Consider these factors when budgeting for vehicle ownership.

Real-world expectations

EPA estimates are a useful starting point, but the GLB250’s real-world fuel economy depends on several things. Aggressive driving, frequent short trips, and heavy loads will all decrease fuel efficiency. Smooth acceleration, consistent highway speeds, and proper tire inflation can help you get closer to the EPA estimates. Those living in hilly areas might see slightly lower numbers, while those with mostly flat commutes could see results exceeding 26 MPG combined. Driving style and environment greatly impact fuel economy.

How it compares

The GLB250 is in a competitive vehicle category. The BMW X1, another small luxury SUV, gets around 28 MPG combined. The Audi Q3 comes in around 25 MPG. The Volvo XC40 typically gets about 27 MPG. These numbers highlight the range among these vehicles where small MPG differences make a difference over time. Buyers often cross-shop the GLB250 against these alternatives, and fuel efficiency is a factor among others, like cargo space and luxury. For more information about the brand, visit all Mercedes Benz fuel economy data. For specifications on this model, check GLB250 MPG across all years.

Tips to maximize efficiency

The turbocharger in the GLB250 responds well to smooth acceleration. Avoid abrupt starts and stops, and gradually increase your speed instead. This reduces the amount of fuel injected into the engine and helps with fuel economy.

The GLB250’s 8-speed automatic transmission shifts smoothly and efficiently. Use the “Comfort” driving mode for everyday driving, since it focuses on fuel economy over pure performance. The “Sport” mode can be fun, but it also holds gears longer, sacrificing efficiency.

Make sure your tires have the correct pressure. You can find the recommended pressure on a sticker inside the driver’s side door. Underinflated tires increase rolling resistance, which reduces fuel economy. Check tire pressure regularly, especially when the temperature changes.

Remove extra weight from the vehicle. Extra cargo adds mass, requires the engine to work harder, and consumes more fuel. Remove any items you don’t need, particularly heavy items like golf clubs or tools.

Regular maintenance, like oil changes and air filter replacements, is important for fuel economy. A clean air filter ensures proper airflow to the engine, letting it run efficiently. Following the maintenance schedule can keep your GLB250 running well for years.