26 MPG combined is a good figure for the 2024 Mercedes-Benz CLE300 4matic Convertible. This isn’t a vehicle for those focused on maximizing fuel efficiency. It’s for drivers who prioritize open-air driving, sleek design, and the Mercedes-Benz brand, all while getting acceptable gas mileage. The CLE300 convertible buyer wants a luxury experience with some practicality, and the 2.0L turbocharged four-cylinder offers that by delivering respectable fuel economy for its class.

City and highway performance

The CLE300’s EPA ratings are 23 MPG in the city and 32 MPG on the highway. The city figure reflects the stop-and-go nature of urban driving, where the engine works harder and the start/stop system activates often. The 32 MPG highway rating shows the engine’s efficiency at a constant speed, because the smooth-shifting 9-speed automatic transmission keeps the engine in its optimal RPM range. Highway numbers are relevant if the owner takes weekend road trips or commutes a long distance, reducing the impact of fuel costs.

Annual fuel cost

The EPA estimates the annual fuel cost for the CLE300 4matic Convertible at $2,250. This is based on driving 15,000 miles per year and national average fuel prices. Individual fuel costs will vary depending on driving habits and local fuel prices, but this is a benchmark for buyers to understand what they can expect to spend on gas per year. It’s a cost to consider with overall vehicle ownership, along with insurance, maintenance, and the purchase price.

Real-world expectations

EPA figures are a benchmark, but real-world fuel economy can differ. Aggressive driving, frequent hard acceleration, tire pressure, and weather can hurt fuel consumption. Owners who drive smoothly, anticipate traffic, and maintain their vehicle well are more likely to get numbers closer to the EPA estimates. Check online owner forums and user reviews for information on the actual mileage other CLE300 drivers are reporting.

How it compares

The CLE300’s fuel economy compares well among luxury convertibles. The BMW Z4 M40i, with a more powerful inline-six engine, gets around 25 MPG combined. The four-cylinder Z4 sDrive30i only achieves 28 MPG. Therefore, the CLE300 offers a good balance of luxury, performance, and fuel efficiency. A comparable Audi A5 Cabriolet with Quattro all-wheel drive achieves roughly 27 MPG combined. These buyers often cross-shop between these brands, weighing factors beyond pure fuel consumption and more on the overall driving experience. For all Mercedes Benz fuel economy data, explore more on this site. You can also compare CLE300 MPG across all years to discern long-term vehicle trends.

Tips to maximize efficiency

The CLE300 has ECO start/stop. Make sure that you are not deactivating this feature, as it can improve your city fuel economy by shutting off the engine at stoplights and in heavy traffic.

Correct tire pressure is critical for safety, handling, and fuel economy. Check your tire pressure regularly and maintain the recommended PSI listed on the driver’s side door jamb to reduce rolling resistance. Underinflated tires can lower your fuel economy by as much as 3%.

Use cruise control on the highway, especially on flat terrain. Maintaining a consistent speed reduces driver fatigue and prevents unnecessary acceleration and deceleration. This helps your turbo-4 run efficiently and ensures the 9-speed shifts at ideal intervals.

Avoid unnecessary weight in the vehicle. Remove any heavy items from the trunk or rear seats that you don’t need. The less weight the engine needs to move, the less gas it will use. A lighter vehicle will always be more efficient.

Service intervals are important, especially with a modern turbocharged engine. Get regular oil and filter changes as recommended by Mercedes-Benz. A well-maintained engine is an efficient engine.