30 MPG combined is an acceptable figure for the 2024 Mercedes-Benz C300 2.0L 4-cyl, a compact luxury sedan aimed at professionals who value brand and driving experience. This isn’t a hybrid designed to sip fuel; it’s a precisely engineered machine that delivers a refined and engaging experience, and offers decent fuel economy.

City and highway performance

The EPA estimates the C300 will achieve 26 MPG in city driving and 36 MPG on the highway. The city number reflects stop-and-go traffic, where the engine’s turbocharger works harder and the nine-speed automatic transmission cycles through gears more frequently. The highway figure showcases the C300’s efficient cruising at lower RPMs, where aerodynamics help. These numbers show the C300 is acceptably efficient in both environments, likely sufficient for buyers whose weekly drives include urban errands and freeway commutes.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Mercedes-Benz C300 2.0L 4-cyl at $1,950. This is calculated based on driving 15,000 miles per year, using national average fuel prices. This is a benchmark for potential owners to factor into running costs. While fuel prices can fluctuate, $1,950 represents a reasonable estimate of what you can expect to spend each year.

Real-world expectations

EPA figures provide a baseline, but real-world fuel economy varies. Driving style, terrain, traffic, and tire pressure influence achieved MPG. Aggressive acceleration and hard braking reduce fuel economy, particularly in city driving. Maintaining proper tire inflation and minimizing weight can make a difference. The EPA numbers are a guide, but your experience may vary.

How it compares

The C300’s fuel economy is competitive. The BMW 330i, a direct rival, achieves a similar 29 MPG combined. The Audi A4 40 TFSI quotes 31 MPG combined, a slightly more efficient option. The Acura TLX returns closer to 25 MPG combined, highlighting the C300’s efficiency advantage. These comparisons show the C300’s balance of performance and fuel economy. Buyers will find that the Mercedes offers comparable mileage to the BMW and Audi, while remaining more fuel efficient than some larger alternatives. You can view C300 MPG across all years on our site.

Tips to maximize efficiency

Use the C300’s drive mode selector. The “Eco” mode optimizes the engine and transmission for maximum fuel efficiency, softening throttle response and encouraging earlier upshifts. Use this mode during steady-state cruising and in stop-and-go traffic to save fuel.

The 2.0L turbocharged engine benefits from smooth acceleration. Avoid aggressive pedal input, especially when starting. Gentle acceleration allows the turbocharger to spool up efficiently, minimizing fuel consumption.

Regular maintenance is critical for optimal fuel economy. Ensure that your C300 receives scheduled oil changes, air filter replacements, and tire rotations. A well-maintained engine and properly inflated tires will contribute to improved efficiency.

Minimize idling. If you anticipate waiting for more than a minute, turn off the engine. Excessive idling consumes fuel without covering any distance. This is particularly relevant in urban environments.

Consider your route. Avoiding congested areas and choosing routes with fewer stoplights has a positive impact on fuel economy. Use navigation apps to identify the most efficient routes. You can find all Mercedes Benz fuel economy data to help you make informed decisions.