23 MPG combined is what you get with the 2022 Mercedes-Benz GLC300 4matic Coupe. This isn’t a vehicle purchased for saving gas. It’s a style statement, a compact luxury SUV with a sloping, coupe-like roofline, and all-wheel drive grip is standard. Buyers are generally drawn to the Mercedes-Benz star, the elevated driving position, and the promise of a premium experience. Fuel consumption is a secondary consideration.

City and highway performance

The EPA estimates 21 MPG in the city and 27 MPG on the highway for the GLC300 4matic Coupe. The city figure reflects the stop-and-go nature of urban driving, where the 2.0L turbocharged four-cylinder engine and nine-speed automatic transmission work harder. The highway figure is more appealing, as the engine settles into a more efficient cruising speed. However, aggressive driving, a lead foot, or frequent bursts of acceleration will lower both numbers. The GLC300 isn’t a lightweight, and overcoming its mass requires fuel.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2022 Mercedes-Benz GLC300 4matic Coupe is $2,500. This figure is based on driving 15,000 miles per year and using national average fuel prices. Fuel prices fluctuate considerably, and your personal driving habits will directly impact this number. More aggressive driving, frequent short trips, or spending more time in heavy traffic will likely result in a higher annual fuel bill. Consider it a baseline to budget for, but don’t be surprised if your real-world costs are different.

Real-world expectations

EPA estimates provide a helpful baseline, but real-world fuel economy often differs. Some drivers report results that fall slightly below the official figures, especially in mixed driving conditions. Temperature can also play a role, as cold weather can negatively impact fuel efficiency. Consistent highway driving at steady speeds will yield the best results, nearing or exceeding the EPA’s 27 MPG estimate. Your mileage will vary depending on how and where you drive.

How it compares

The GLC300 4matic Coupe’s fuel economy is typical for its class. The BMW X4 xDrive30i, a direct competitor, achieves similar figures with an EPA rating of 23 MPG combined. The Acura RDX, while not a “coupe” SUV, offers a more traditional SUV shape with all-wheel drive and posts around 23 MPG combined. These close numbers show that buyers in this segment prioritize luxury, style, and performance over fuel savings. Those seeking better MPG within the Mercedes Benz lineup may explore other models, while exploring GLC300 MPG across all years uncovers how these figures have evolved.

Tips to maximize efficiency

Drive smoothly and predictably. Avoid sudden acceleration and hard braking. The GLC300’s nine-speed transmission is designed to shift early and often, keeping the engine in its most efficient operating range. Let the transmission do its job, and don’t manually downshift to accelerate aggressively. Doing so will only burn more fuel.

Make sure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check your tire pressure regularly and maintain the recommended pressure listed on the door jamb sticker. Keeping your car properly maintained also aids in fuel economy.

Minimize idling. Letting your engine idle for extended periods wastes fuel, especially in cold weather. If you’re stopped for more than a minute or two, turn off the engine. The GLC300’s engine restarts quickly.

Use cruise control on the highway. Cruise control helps maintain a consistent speed, minimizing unnecessary acceleration and deceleration which can improve fuel economy on long highway trips. Also explore all Mercedes Benz fuel economy data for other potential options.