27 MPG combined won’t win any fuel economy awards, but it’s a respectable figure for the 2022 Mercedes-Benz C300 4matic. This isn’t a car designed for hypermilers; it’s a compact luxury sedan aimed at buyers who prioritize comfort, technology, and brand cachet. Acceptable fuel economy is a bonus, not the main reason to buy this car. It’s a competent all-rounder, sacrificing a small amount of efficiency to deliver a refined driving experience and the surefootedness of all-wheel drive.

City and highway performance

The EPA estimates the 2022 Mercedes-Benz C300 4matic achieves 23 MPG in the city and 33 MPG on the highway. The city figure reflects driving in stop-and-go traffic and lower average speeds, where the engine works harder and recovers less energy. The highway number shows the benefit of the C300’s smooth-shifting 9-speed automatic transmission, which allows the engine to cruise at lower RPMs for better efficiency at higher speeds. The 4matic all-wheel-drive system enhances traction and stability, but it also increases fuel consumption compared to rear-wheel-drive models.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2022 Mercedes-Benz C300 4matic is $2,150. This figure is calculated based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. This is an estimate, and your actual fuel costs will change depending on your driving habits, the type of driving you do, and fuel prices in your area. For example, someone who does mostly highway driving may see lower annual costs than someone who drives primarily in the city.

Real-world expectations

The EPA figures are from standardized testing procedures. Real-world fuel economy can vary based on driving style, traffic, terrain, and weather. Aggressive acceleration, frequent hard braking, and extended idling will lower fuel economy.

However, smooth, consistent driving and anticipating traffic flow can help you get closer to, or even exceed, the EPA estimates. Tire pressure is also critical. Underinflated tires increase rolling resistance and reduce fuel efficiency. The C300’s trip computer shows real-time and average fuel economy data, so drivers can monitor their performance and adjust their driving to improve efficiency. If you’re curious about C300 MPG across all years, resources abound.

How it compares

The 2022 Mercedes-Benz C300 4matic is in a competitive segment. The BMW 330i xDrive, another popular choice, gets about 28 MPG combined. The Audi A4 quattro gets 27 MPG combined, matching the C300’s rating. The Acura TLX, particularly its 2.0T SH-AWD variant, gets 24 MPG combined, which is a little lower. These MPG differences can add up over the life of the car, affecting the total cost of ownership.

For the buyer who wants luxury, brand image, and all-weather capability, the C300 balances these factors against others’ efficiency. You can also review all Mercedes Benz fuel economy data to understand where the C300 fits into their broader model range.

Tips to maximize efficiency

Use the C300’s ECO drive mode. This mode optimizes engine and transmission settings for fuel efficiency. It may slightly reduce throttle response and shift points, but the savings can be noticeable, especially during city driving where you don’t need maximum power.

Minimize idling. Modern engines use fuel even when stationary, so avoid letting the car idle for long periods, such as when waiting in parking lots or drive-thrus. If you expect to be stopped for more than a minute, turn off the engine.

Check tire pressure regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Maintain the recommended tire pressure, which is on a sticker inside the driver’s side doorjamb or in the owner’s manual.

Drive smoothly and consistently. Avoid aggressive acceleration and hard braking, as these waste fuel. Anticipate traffic flow and maintain a steady speed. Use cruise control on the highway to maintain a consistent speed and better fuel efficiency, especially on long trips.

Consider using the Mercedes me connect app to monitor your driving habits. This app may show your driving style and offer tips for improving fuel efficiency. It can also help you track your fuel consumption and find ways to save money.