- Gas
- Diesel
- Small SUVs
- MY2010–2015
Mercedes-Benz GLK-Class MPG & Fuel Cost by Year
6 model years · 2010–2015
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Mercedes-Benz GLK-Class fuel economy at a glance
EPA has rated the Mercedes-Benz GLK-Class for 6 model years, 2010 to 2015. Across those years its combined rating runs 18–27 MPG. The latest model year, 2015, has 5 configurations rated 20–27 MPG combined and costing $3,440–$3,960 a year to fuel at diesel $6.29/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2010 is the 2015 GLK250 Bluetec 4matic 2.1L 4-cyl turbo 4WD, at 27 MPG.
Mercedes-Benz GLK-Class MPG by year
| Year | Gas (MPG) | Diesel (MPG) | $/yr |
|---|---|---|---|
| 2010-2015 Generation page | |||
| 2015 | 20–22 | 27 | $3,440–$3,960 |
| 2014 | 21–22 | 27 | $3,440–$3,890 |
| 2013 | 21 | 27 | $3,440–$3,830 |
| 2012 | 18 | — | $4,370–$4,520 |
| 2011 | 18 | — | $4,360–$4,500 |
| 2010 | 18 | — | $4,460 |
Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.
Mercedes-Benz GLK-Class generations
1 generations between 2010 and 2015. Open one for the table of every model year and configuration.
2015 powertrain options
More Mercedes-Benz models
Frequently asked questions
What is the Mercedes-Benz GLK-Class's gas mileage by year?
EPA combined ratings for the Mercedes-Benz GLK-Class run 18–27 MPG across model years 2010 to 2015. The latest year, 2015, is rated 20–27 MPG.
Which Mercedes-Benz GLK-Class model year has the best gas mileage?
The 2015 Mercedes-Benz GLK-Class GLK250 Bluetec 4matic 2.1L 4-cyl turbo 4WD has the highest combined rating since 2010, at 27 MPG.
How much does a Mercedes-Benz GLK-Class cost to fuel per year?
For MY2015, EPA-rated configurations cost $3,440–$3,960 a year to fuel, driving 15,000 miles at diesel $6.29/gal (U.S. average, Sep 2026). The most efficient one costs $3,440.
Has the Mercedes-Benz GLK-Class's fuel economy improved over time?
Yes. The most efficient configuration moved from 18 MPG in 2010 to 27 MPG in 2015, 9 MPG more.