25 MPG combined is a perfectly acceptable figure for the 2019 Mercedes-Benz E300, a mid-size luxury sedan designed more for comfort and prestige than outright fuel efficiency. This car suits a buyer seeking a refined driving experience, advanced technology, and the prestige of the Mercedes-Benz brand. Fuel economy, while a consideration, typically ranks lower than these other factors. This E300, equipped with the 2.0L turbocharged 4-cylinder engine, balances performance and efficiency over maximum MPG in its class.

city and highway performance

The EPA estimates for the 2019 E300 reflect a realistic difference between driving environments. The 21 MPG city rating suggests the engine may work harder in stop-and-go conditions, while the 30 MPG highway rating demonstrates its ability to cruise efficiently at higher speeds. The 9-speed automatic transmission is important here, keeping the engine in its optimal RPM range for both acceleration and fuel conservation. These figures realistically align with the E300’s purpose: providing a comfortable and capable ride regardless of surroundings.

annual fuel cost

According to the EPA, the annual fuel cost for the 2019 Mercedes-Benz E300 is $2,300. This estimate is based on driving 15,000 miles per year and using national average fuel prices. This is just an estimate, of course. Actual fuel costs will vary depending on driving habits, local fuel prices, and the type of fuel used. However, the $2,300 figure provides a standardized benchmark for comparing the E300’s fuel expenses against other vehicles. Someone considering the E300 should factor this into their overall budget.

real-world expectations

While the EPA provides benchmark figures, real-world fuel economy often differs. Aggressive driving, frequent short trips, and carrying heavy loads can negatively impact fuel consumption. Gentle acceleration, consistent highway speeds, and proper tire inflation can improve it. Owners who prioritize fuel economy can likely achieve figures closer to, or even slightly above, the EPA estimates.

Those with a heavier foot or consistently challenging driving conditions may experience slightly lower numbers. The E300’s trip computer provides real-time and average fuel consumption data, allowing drivers to monitor and adjust their driving habits. For E300 MPG across all years, be sure to check out our model pages.

how it compares

The 2019 E300’s fuel economy is competitive within its class, but some rivals have slightly better numbers. For instance, the BMW 530i, also powered by a 2.0L turbocharged 4-cylinder, achieves a similar 24 MPG combined. However, the Acura TLX 2.4L with front-wheel drive can attain up to 27 MPG combined. The Lexus ES 350, although equipped with a larger V6 engine, offers a reported 26 MPG combined. The Mercedes badge, interior appointments and available technology outweigh a mile per gallon or two difference for the E300 buyer. You can find all Mercedes Benz fuel economy data here.

tips to maximize efficiency

Use the “Comfort” or “Eco” driving modes. The E300 offers multiple driving modes that adjust throttle response, transmission shift points, and climate control settings to improve efficiency. Selecting “Eco” mode will reduce engine output and optimize the transmission for fuel conservation, while “Comfort” aims to balance fuel economy and driving pleasure. Avoid “Sport” mode unless you need the extra performance.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly, every two weeks if possible, and inflate them to the pressure recommended on the sticker located on the driver’s side doorjamb. This simple maintenance task can have a noticeable impact on fuel consumption.

Anticipate traffic flow and avoid aggressive acceleration. Smooth, gradual acceleration is more fuel-efficient than rapid acceleration followed by hard braking. By anticipating traffic and maintaining a steady speed whenever possible, you can minimize unnecessary fuel consumption. Use the E300’s cruise control on the highway to maintain a constant speed and improve fuel economy.

Minimize idling. Idling consumes fuel without providing any benefit. If you anticipate being stationary for more than a minute or two, turn off the engine. Modern vehicles, including the E300, are designed to restart quickly and efficiently. Let the engine rest instead of running it unnecessarily.

Keep up with scheduled maintenance. Regular maintenance, such as oil changes and air filter replacements, ensures that the engine is running efficiently. A neglected engine will consume more fuel and may also experience performance issues. Following the manufacturer’s recommended maintenance schedule is critical for maintaining fuel economy and overall vehicle health.