28 MPG combined isn’t going to win any hypermiling awards, but it’s a perfectly respectable figure for the 2024 Mercedes-Benz GLB250. This compact SUV prioritizes comfort, luxury, and a surprising amount of practicality over outright fuel efficiency. Buyers of the GLB250 typically aren’t scrutinizing every tenth of a mile per gallon; they’re drawn to the Mercedes star, the available third-row seating, and the overall premium experience in a relatively small package. They accept the GLB’s fuel economy as a reasonable trade-off for its many other appealing qualities.

City and highway performance

The EPA estimates for the GLB250 peg city driving at 25 MPG and highway cruising at 33 MPG. The city figure reflects the stop-and-go nature of urban environments, where the 2.0L turbocharged four-cylinder engine and eight-speed automatic transmission (AM8) work harder and spend more time idling. The highway number demonstrates the benefit of steady-state driving, allowing the engine to settle into its most efficient operating range. These figures are fairly typical for a small SUV of this type, striking a balance between performance and fuel consumption. Remember that these are EPA estimates achieved under controlled conditions, and real-world driving conditions will almost certainly yield slightly different results.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Mercedes-Benz GLB250 at $2,050. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. Individual fuel costs will vary depending on driving habits, local fuel prices, and the specific grade of fuel used. This is an estimated figure and your actual costs may be higher or lower. Considering all Mercedes Benz fuel economy data, and the premium fuel that is often recommended for optimal performance in turbocharged engines, this figure gives consumers insight into how the expense of fuel will impact their personal budget.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world fuel economy often differs. Factors such as driving style, road conditions, traffic, and the use of accessories like air conditioning can all impact MPG. Drivers with a heavier foot or those who frequently drive in congested areas are likely to see lower fuel economy than the EPA estimates. Conversely, those who primarily drive on the highway and adopt more fuel-efficient driving habits may achieve figures closer to, or even slightly better than, the EPA’s 33 MPG highway rating. Don’t expect to consistently achieve the stated numbers, but use them as a guideline for what’s realistically possible under optimal circumstances. You can also investigate GLB250 MPG across all years to see if your experience is similar to other owners.

How it compares

The GLB250’s fuel economy positions it competitively within its segment, but it’s not the absolute leader. For example, the BMW X1 xDrive28i provides fuel economy that is very close to the GLB250. The Audi Q3 achieves roughly similar numbers, although the trims and options can impact its overall efficiency in real-world conditions. Buyers cross-shopping these premium compact SUVs will likely find that fuel economy is just one piece of the puzzle, with factors like interior design, features, and driving dynamics playing a more important role. Someone focused solely on fuel efficiency might consider a non-luxury option, but the GLB250 buyer is clearly willing to prioritize a degree of luxury over maximizing MPG.

Tips to maximize efficiency

Gentle acceleration and smooth braking are fundamental to fuel-efficient driving in any vehicle, and they hold particularly true for the turbocharged GLB250. Avoid aggressive acceleration and hard braking, as these actions consume more fuel. Anticipate traffic flow and maintain a consistent speed whenever possible to optimize fuel economy.

Proper tire inflation is essential for both safety and fuel efficiency. Check your tire pressures regularly and inflate them to the recommended levels, which can be found on a sticker inside the driver’s side doorjamb or in the owner’s manual. Underinflated tires increase rolling resistance, which reduces fuel economy.

Minimize the use of accessories that consume energy, such as air conditioning and heated seats. While these features enhance comfort, they also place a load on the engine, which can negatively impact fuel economy. Use them carefully, especially during short trips.

Consider using the GLB250’s driving modes to your advantage. Many Mercedes-Benz models offer an “Eco” mode that optimizes various vehicle settings for maximum fuel efficiency. While it may affect performance slightly, it can help you squeeze out extra miles per gallon, especially on longer drives.