The 2024 Mercedes-Benz AMG GLC43 4matic Coupe gets 21 MPG combined. It’s a performance-oriented coupe-SUV, so this fuel economy reflects the inevitable trade-offs. Buyers are typically looking for a stylish, fast, and luxurious machine, where fuel costs are a secondary concern.

City and highway performance

The EPA estimates the GLC43 Coupe will get 18 MPG in the city and 24 MPG on the highway. Stop-and-go traffic, frequent acceleration, and idling in urban driving cause the lower city figure. The turbocharged 2.0L engine has to work harder under those conditions. The highway figure reflects the benefits of the 9-speed automatic transmission. It allows the engine to cruise at lower RPMs, improving efficiency at steady speeds. The 4MATIC all-wheel drive system adds weight and drivetrain friction, which lowers fuel economy. However, it provides traction and stability, especially in bad weather.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Mercedes-Benz AMG GLC43 Coupe at $2,750. This assumes 15,000 miles per year, with 45% city and 55% highway driving, using national average fuel prices. Actual fuel costs depend on driving habits, local fuel prices, and the type of fuel. The GLC43 Coupe requires premium fuel, increasing the cost of ownership.

Real-world expectations

EPA estimates are a starting point, but actual fuel economy varies. Aggressive driving, frequent short trips, and extra cargo all decrease fuel efficiency. Gentle acceleration, consistent highway speeds, and proper tire inflation can help improve it. Owners who prioritize fuel economy might see numbers close to the EPA estimates. Those who often exploit the vehicle’s performance will likely see lower numbers. The GLC43 has a hand-built AMG engine for spirited driving, so expect higher fuel consumption during performance runs.

How it compares

The AMG GLC43 Coupe competes with other performance SUVs. The BMW X4 M40i gets an EPA-estimated 21 MPG combined. The Porsche Macan S gets around 19 MPG combined. The Audi SQ5 Sportback is rated at 20 MPG combined. These vehicles all require premium fuel, and buyers accept a fuel economy penalty for a more engaging driving experience. The Lexus NX 350h, a hybrid SUV, offers significantly better fuel economy at 39 MPG combined , but has a very different driving style. For those interested in seeing all Mercedes Benz fuel economy data, the data is online, allowing buyers to compare the GLC43 with other Mercedes-Benz models. Comparing AMG MPG across all years helps to understand the evolution of the brand’s commitment to performance.

Tips to maximize efficiency

Use the various drive modes in the GLC43, including “Comfort” or “Eco.” These adjust throttle response, transmission mapping, and other settings to prioritize fuel efficiency. While “Sport+” mode is tempting, using it sparingly will improve fuel consumption.

Check your tire pressure often and inflate your tires to the recommended pressure on the driver’s side door jamb. Underinflated tires increase rolling resistance, which lowers fuel efficiency. A tire pressure check can help and also extends tire life.

Remove unnecessary weight from the vehicle. Extra cargo reduces fuel efficiency because the engine works harder to accelerate and maintain speed. Take out items you don’t need. Even removing golf clubs or extra bags can improve efficiency.

Avoid aggressive driving like rapid acceleration and hard braking. These use more fuel than smooth, gradual acceleration and braking. Anticipate traffic flow and maintain a consistent speed to minimize fuel consumption. Let the turbocharger build boost gradually.

Use cruise control on the highway to maintain a consistent speed and optimize fuel economy. Cruise control minimizes speed variations, potentially reducing fuel consumption compared to manual throttle control. Cruise control will also help diminish the temptation to test the car’s speed.