The 2019 Mercedes-Benz E450 Convertible gets exactly 23 MPG combined. This isn’t class-leading, but buyers of this luxurious convertible are usually not focused on maximizing fuel efficiency. This car prioritizes style, comfort, and performance, so the fuel economy is an acceptable compromise.

City and highway performance

The EPA estimates 20 MPG in the city and 27 MPG on the highway for the E450 Convertible. The city MPG isn’t ideal for stop-and-go traffic, but the smooth and responsive 3.0L turbocharged six-cylinder engine helps make commutes more enjoyable. The 27 MPG highway rating shows the car’s relaxed cruising ability and well-calibrated 9-speed automatic transmission. This car is designed for weekend drives and sunny escapes, and the highway fuel economy keeps those trips affordable.

Annual fuel cost

The EPA says you can expect to pay $2,500 per year on fuel for the 2019 Mercedes-Benz E450 Convertible. This is based on driving 15,000 miles per year and using average national fuel prices. The E450’s fuel cost reflects the added expense since premium fuel is recommended for optimal performance. While the cost is important, it’s unlikely to deter buyers, who typically prioritize the driving experience over absolute fuel efficiency.

Real-world expectations

EPA estimates are a useful benchmark, but fuel economy varies depending on driving habits, road conditions, and the weather. Expect figures close to the EPA estimates when driving on the highway at consistent speeds. More aggressive driving along with frequent acceleration will likely result in lower fuel economy. Check your tire pressures regularly, as this affects overall efficiency. Keeping your tires properly inflated is an easy maintenance task that improves MPG.

How it compares

The E450’s fuel economy is similar to others in the luxury convertible segment. For example, the BMW 440i Convertible gets about 22 MPG combined. The Audi S5 Cabriolet lands at around 21 MPG. The Lexus LC 500 Convertible has a more powerful V8 engine but achieves a lower combined fuel economy of around 18 MPG. Buyers of the E450 Convertible appreciate a balance of luxury, performance, and efficiency. They want a refined driving experience without excessive fuel consumption. For all Mercedes Benz fuel economy data, visit the Mercedes-Benz hub. You can find the E450 MPG across all years here.

Tips to Maximize Efficiency

Avoid quick acceleration. The E450’s turbocharger delivers plenty of power, but rapid acceleration consumes more fuel. Drive smoothly to improve efficiency. The 9-speed automatic transmission is designed to keep the engine running efficiently.

Use cruise control on the highway. Maintaining a consistent speed reduces fuel consumption. Cruise control prevents unnecessary speed fluctuations, especially on long highway drives. The system can help maintain a safe following distance, too.

Keep your tires properly inflated. Low tire pressure increases rolling resistance, which reduces fuel economy. Check your tire pressure and inflate them to the recommended level found on the driver’s side doorjamb. Even a small change in tire pressure can affect fuel efficiency.

Remove extra weight. Carrying extra cargo in the trunk or backseat adds weight to the vehicle, reducing fuel economy. Remove any unnecessary items from your car to lighten the load. Less weight saves gas.