Mercedes-Benz 300D/300CD: MPG and fuel economy by year
The EPA has rated the Mercedes-Benz 300D/300CD across 2 model years, from the 1984 Mercedes-Benz 300D/300CD through the 1985 Mercedes-Benz 300D/300CD. The most recent 1985 Mercedes-Benz 300D/300CD returns 21 combined MPG. The most efficient model year was the 1984 Mercedes-Benz 300D/300CD at 22 MPG.
Pick a year below to open the full Mercedes-Benz 300D/300CD page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.
Fuel economy by model year
Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Mercedes-Benz 300D/300CD. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.
| Year | Model | Combined MPG | City | Highway | Annual fuel cost |
|---|---|---|---|---|---|
| 1985 | 1985 Mercedes-Benz 300D/300CD | 21 MPG | 19 MPG | 23 MPG | $3,850 |
| 1984 | 1984 Mercedes-Benz 300D/300CD | 22 MPG | 21 MPG | 23 MPG | $3,700 |
How the Mercedes-Benz 300D/300CD compares against the Compact Cars class
Buyers usually compare the Mercedes-Benz 300D/300CD against other cars in the same EPA class. The list below shows the most efficient cars in the Compact Cars class for the 1985 model year, the latest year on this page. Each link opens the full page for that car.
Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.