Mercedes-Benz GLK-Class MPG by Year
| Year | Combined | Fuel | Cost per 100 miles | Trims | Recalls |
|---|---|---|---|---|---|
| 2015 | 20–27 | Diesel, Premium gasoline | $23.08 | 5 | – |
| 2014 | 21–27 | Diesel, Premium gasoline | $23.08 | 5 | – |
| 2013 | 21–27 | Diesel, Premium gasoline | $23.08 | 5 | – |
| 2012 | 18 | Premium gasoline | $27.73 | 2 | – |
| 2011 | 18 | Premium gasoline | $27.73 | 2 | – |
| 2010 | 18 | Premium gasoline | $27.73 | 2 | – |
Fuel economy: U.S. EPA fueleconomy.gov