24 MPG combined won’t win any hypermiling awards, but it’s acceptable for the 2017 Mercedes-Benz GLC300 4matic with a 2.0L 4-cylinder engine. It’s a compact luxury SUV that emphasizes comfort, refinement, and the Mercedes-Benz brand. The GLC300’s buyers value a premium driving experience and image, so the fuel consumption is a compromise they’re willing to make.

City and highway performance

The EPA estimates 21 MPG in the city and 28 MPG on the highway for the 2017 GLC300 4matic. The city figure reflects stop-and-go driving, where the 2.0L engine works harder and the 9-speed automatic transmission shifts constantly. On the open road, the GLC300’s fuel economy improves considerably.

Reaching 28 MPG means the engine cruises easily, and the aerodynamics (compared to other SUVs) help. The 4matic all-wheel-drive system adds a small amount of weight and friction, which affects economy compared to the rear-wheel-drive GLC300, but the added traction is a benefit for many buyers, especially in colder climates.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Mercedes-Benz GLC300 4matic at $2,400. This is based on driving 15,000 miles per year and using national average fuel prices. Your fuel costs will vary based on driving habits, local fuel prices, and the grade of gasoline used. While the GLC300 doesn’t require premium fuel, some owners may choose it for best performance, which will increase the annual fuel expense. Compare this model to GLC300 MPG across all years.

Real-world expectations

EPA estimates provide a benchmark, but real-world fuel economy can be different. Aggressive driving, frequent short trips, and heavy loads will hurt MPG. Gentle acceleration, steady highway speeds, and regular maintenance can help you get closer to, or even exceed, the EPA estimates.

The trip computer in the GLC300 gives real-time and average fuel economy data, helping drivers monitor their consumption and adjust their driving habits. It’s also a good idea to check online forums and owner reviews for mileage information from other GLC300 drivers.

How it compares

The 2017 GLC300 4matic’s fuel economy is average among compact luxury SUVs. For example, the 2017 BMW X3 xDrive28i offers similar numbers around 24 MPG combined. The Audi Q5 2.0T Quattro performs similarly in MPG and has slightly better city MPG than the GLC 300. Buyers shopping for these vehicles often care more about brand image, interior design, and driving feel than small differences in fuel efficiency. For buyers who want better fuel economy, the Lexus NX 300h hybrid gets around 31 MPG combined, but sacrifices some driving feel. If fuel economy is your main concern, see all Mercedes Benz fuel economy data.

Tips to maximize efficiency

The 9-speed automatic transmission is designed to keep the engine running efficiently. Avoid hard acceleration, which forces the transmission to downshift and burn more fuel. Accelerate gently so the transmission can stay in higher gears to improve fuel economy.

Keep your tires inflated properly. Low tire pressure increases rolling resistance, which lowers fuel efficiency. Check your tire pressure regularly and inflate them to the pressure on the sticker inside the driver’s side door or in the owner’s manual.

Reduce weight in the vehicle. Extra weight makes the engine work harder and use more fuel. Remove any items from the trunk or rear seats that aren’t needed, especially for city driving.

On the highway, use cruise control when you can. Maintaining a steady speed helps fuel efficiency. Cruise control limits changes in throttle, resulting in more consistent and economical driving. Watch traffic conditions and avoid cruise control in heavy or stop-and-go traffic.

If equipped, consider using the GLC300’s ECO drive mode. This mode changes the engine and transmission to prioritize fuel efficiency. While it may slightly reduce throttle response, it can improve MPG, especially in city driving. Expect some measurable improvements but not extreme differences.