The 2022 Mercedes-Benz C300’s 29 MPG combined rating is a good compromise for buyers in this segment. These drivers aren’t necessarily focused solely on fuel efficiency; they’re often younger professionals who want a mix of luxury, performance, and reasonable fuel economy. The C300 provides that balance, offering a luxurious driving experience without using too much gas. It’s a purposeful decision to prioritize a premium experience while still being mindful of fuel costs.

City and highway performance

The EPA estimates for the C300 are 25 MPG in the city and 35 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, which impacts fuel consumption. The turbocharged 2.0L engine delivers plenty of low-end torque for responsive city driving, but that responsiveness uses more fuel. The highway number is better, showing the C300’s ability to cruise comfortably and efficiently on longer trips. The 9-speed automatic transmission helps by keeping the engine at the right RPM for fuel economy at higher speeds.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Mercedes-Benz C300 will be about $2,000. This is based on driving 15,000 miles per year, using the national average fuel prices at the time of the EPA’s testing. This gives a standard way to compare the C300’s fuel costs to other vehicles. Individual fuel costs will vary depending on driving habits and fuel prices, but the $2,000 figure is a reasonable expectation.

Real-world expectations

EPA estimates provide a baseline, but real-world MPG often differs. Aggressive driving, frequent short trips, and extreme weather can all hurt fuel economy. However, drivers who drive more gently, drive more highway miles, and maintain their vehicle can often get close to, or even exceed, the EPA’s estimates. The C300’s onboard trip computer shows real-time fuel consumption data, letting drivers monitor their efficiency and adjust their driving.

You can also check out C300 MPG across all years to get a better idea of how this vehicle performs in different model years.

How it compares

The C300’s fuel economy compares well to some of its competitors, but others are better. The BMW 330i, for instance, also gets 29 MPG combined with its similar turbo-four engine. The Lexus IS 300 AWD, with its V6 engine, typically gets around 22 MPG combined, making the decision easier for some buyers in favor of the C300. The Audi A4 with its 40 TFSI engine lists an identical 29 MPG combined. The Acura TLX, especially with the turbocharged 2.0L engine, gets a similar rating depending on trim and drivetrain. Buyers often compare these vehicles, and fuel economy is just one factor along with styling, features, and brand. For a wider look at the brand, you can reference all Mercedes Benz fuel economy data.

Tips to maximize efficiency

Check your tire pressure. The C300’s recommended tire pressure balances handling, comfort, and fuel economy. Underinflated tires increase rolling resistance, which lowers MPG. Check your tire pressure often and inflate them to the recommended level.

Reduce weight. Carrying extra weight in your C300 reduces fuel economy. Remove items from the trunk or backseat that you don’t regularly need. Every extra pound increases fuel consumption.

Anticipate traffic. Avoid sudden acceleration and braking as much as possible. By anticipating traffic and keeping a smooth, consistent speed, you can minimize fuel waste. The C300’s adaptive cruise control can help with this on the highway.

Service your air filter. A dirty air filter restricts airflow to the engine, reducing performance and fuel efficiency. Replace the air filter on the manufacturer’s schedule.

Select driving modes carefully. The C300 usually has driving modes, including an “Eco” or “Comfort” mode that helps save fuel. Select these modes when practical, especially during highway driving or city driving, to improve fuel economy.