25 MPG combined. That’s the figure associated with the 2021 Mercedes-Benz AMG GLA35 4matic 2.0L 4-cyl, and it’s important to understand its context. It’s not setting any world records, or going to win over dedicated hypermilers, or even best in its class. However, it is perfectly acceptable for a performance crossover designed to thrill first and sip fuel second. The GLA35 caters to a specific buyer: someone who wants practicality and premium amenities without sacrificing the engaging driving dynamics associated with the AMG badge. Fuel efficiency, is lower down the priority list than a responsive throttle and tenacious grip.

City and highway performance

The EPA estimates for the GLA35 break down to 23 MPG in the city and 29 MPG on the highway. These figures reflect the energetic nature of the car. In stop-and-go city driving, the turbocharged 2.0L four-cylinder is always ready to respond, encouraging a heavy right foot. The eight-speed automatic transmission (AM8) shifts quickly and decisively, contributing to the car’s playful personality, but also impacting fuel consumption. On the highway, the GLA35 settles into a more relaxed cruise, but the temptation to exploit its passing power is ever-present. Maintaining a steady speed with minimal bursts of acceleration is key to reaching that 29 MPG highway figure.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Mercedes-Benz AMG GLA35 at $2,300. This calculation assumes 15,000 miles of driving per year, using national average fuel prices. Keep in mind that this is just an estimate. Individual fuel costs depend heavily on driving habits, local fuel prices, and the percentage of city versus highway driving. Someone who drives primarily in congested urban environments and enjoys exploiting the GLA35’s performance will likely exceed this figure, while a driver with a longer highway commute and a more conservative driving style could potentially see lower costs.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy can vary. Drivers report figures close to the EPA estimates, but it requires conscious effort to achieve. Aggressive acceleration, frequent use of Sport or Sport+ driving modes, and neglecting regular maintenance can all negatively impact fuel consumption. Conversely, using the Eco drive mode, practicing smooth acceleration and braking, and keeping tires properly inflated can help improve real-world MPG. Remember to monitor your own fuel consumption to get a sense of AMG MPG across all years.

How it compares

In the realm of performance crossovers, the GLA35’s fuel economy is competitive, but not class-leading. The BMW X2 M35i, a direct competitor, achieves a similar 25 MPG combined. The Audi SQ3, while not officially sold in the US for the 2021 model year, offers comparable performance and fuel economy in other markets. Stepping up to a larger, more powerful vehicle like the Mercedes-AMG GLC 43 results in a noticeable drop in fuel economy, typically around 21 MPG combined. For buyers prioritizing fuel efficiency above all else, a non-AMG GLA model or a competitor like the Lexus UX 250h (41 MPG combined) might be a more suitable choice. Understanding all Mercedes Benz fuel economy data can help you make the best decision.

Tips to maximize efficiency

Take advantage of the GLA35’s driving modes. The Eco mode optimizes various vehicle settings, including throttle response and transmission behavior, to prioritize fuel efficiency. While it might not be the most engaging mode for spirited driving, it can make a significant difference during everyday commutes or long highway journeys. Don’t be afraid to use it when the situation calls for it.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check the sticker on the driver’s side doorjamb for the recommended tire pressure, and ensure your tires are properly inflated. Consider using a digital tire pressure gauge for more accurate readings.

Resist the urge to constantly exploit the engine’s power. The GLA35 is undeniably fun to drive, but frequent bursts of acceleration and high-speed cruising will quickly deplete the fuel tank. Practice smooth acceleration and maintain a steady speed whenever possible to minimize fuel consumption. Anticipate traffic flow and avoid unnecessary braking.

Keep up with scheduled maintenance. Regular oil changes, air filter replacements, and spark plug maintenance are important for optimal engine performance and fuel efficiency. Follow the manufacturer’s recommended maintenance schedule to ensure the GLA35 is running at its best.

Avoid carrying excess weight. The heavier the vehicle, the more fuel it consumes. Remove any unnecessary items from the trunk and passenger compartment to reduce weight and improve fuel economy. Every little bit helps, especially in a performance-oriented vehicle like the GLA35.