27 MPG combined is respectable for the 2022 Mercedes-Benz GLB250. It won’t win any hypermiling contests, but it’s a reasonable tradeoff for the GLB250’s versatile mission. This is a compact SUV that delivers genuine Mercedes-Benz luxury, surprising cargo capacity thanks to its boxy shape, and the option of a (admittedly tight) third row. Buyers prioritize these attributes over squeezing every last mile from a gallon of premium.

City and highway performance

The GLB250 gets an EPA-estimated 24 MPG in the city and 32 MPG on the highway. The city number reflects stop-and-go traffic where the 2.0-liter turbocharged engine works harder, and the eight-speed automatic transmission cycles frequently. The highway figure highlights the engine’s efficiency at cruising speeds. The well-spaced gear ratios allow for comfortable and efficient highway driving, requiring less frequent downshifts for passing. The relatively low aerodynamic drag, a result of its upright design, also helps it reach 32 MPG on the open road.

Annual fuel cost

The EPA says the annual fuel cost for the 2022 Mercedes-Benz GLB250 is $2,150. This is based on driving 15,000 miles per year and using national average fuel prices for premium gasoline, which the GLB250 requires. Remember that actual fuel costs will vary based on individual driving habits, local fuel prices, and the percentage of city versus highway driving.

Real-world expectations

The EPA’s 27 MPG combined is a good benchmark, but real-world fuel economy can change. Drivers who often accelerate quickly, brake hard, or idle for a long time will likely see lower numbers. Congested urban environments, where the GLB250’s compact size is most appreciated, can also hurt fuel consumption. Drivers who accelerate smoothly, maintain consistent speeds, and spend more time on the highway may exceed the EPA estimates.

Factor in your own driving habits and conditions to get a more accurate sense of what to expect from the GLB250’s fuel economy. Owners should also remember that the GLB250 requires premium fuel, adding to the overall cost of ownership.

How it compares

The GLB250 is in a competitive segment, and its fuel economy is important for buyers comparing options. The BMW X1, a direct competitor, gets a similar 28 MPG combined from its 2.0-liter turbo engine. The Audi Q3, another popular choice, delivers around 25 MPG combined. These numbers are close enough that fuel economy alone is unlikely to be the deciding factor; buyers will likely weigh factors like interior space, technology, and driving dynamics.

The Mazda CX-5 earns around 26 MPG combined with its base engine and can offer a more engaging driving experience. For those seeking the best possible fuel economy, the Lexus UX hybrid, with its 42 MPG combined, is an alternative, though with a very different character and significantly less cargo space. You can view all Mercedes Benz fuel economy data including the GLB250 MPG across all years.

Tips to maximize efficiency

One of the simplest ways to improve fuel economy in the GLB250 is to drive more smoothly. Avoid abrupt acceleration and hard braking, as these actions consume more fuel. Anticipate traffic flow and maintain a steady pace whenever possible. The GLB250’s eight-speed automatic is programmed for efficiency; let it do its job.

Proper tire inflation is critical for good fuel economy. Check your tire pressure regularly and make sure it matches the recommended pressure listed on the doorjamb. Underinflated tires create more rolling resistance, leading to increased fuel consumption. Maintaining the correct tire pressure also improves handling and extends tire life.

Reduce unnecessary weight in the vehicle. Carrying extra cargo adds to the vehicle’s overall weight, forcing the engine to work harder and burning more fuel. Remove any items from the trunk or rear seats that are not essential for your daily commute.

Reduce idling time. Idling consumes fuel without covering any distance. If you anticipate stopping for more than a minute or two, turn off the engine. The GLB250 also features an auto start-stop function that shuts off the engine at traffic lights. Make sure this feature is enabled unless conditions dictate otherwise (extreme hot or cold weather may make it less desirable).