We are 103,000+ car owners sharing real-world car information.

Join Us

Mercedes-Benz GLK MPG


The graph does not display if there are fewer than five results.
Model Year Body/Powertrain MPG  
2013 2013 4dr SUV turbocharged 200hp 2.1L I4 Diesel 7-sp shiftable automatic AWD 35.03
See all data
With the turbocharged 201hp 2.1L I4 Diesel engine, 7-speed shiftable automatic transmission, and all-wheel drive, the 2013 Mercedes-Benz GLK has been averaging 35.03 MPG (miles per gallon).

The 2013 Mercedes-Benz GLKs in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 40 percent of the miles driven). The rest of the miles were in the city (6.7 percent), in the suburbs (0 percent), and in heavy traffic (0 percent).

In addition, the average 2013 Mercedes-Benz GLK in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.
2013 2013 4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-sp shiftable automatic AWD 36.8
See all data
2013 2013 4dr SUV 302-hp 3.5L V6 7-sp shiftable automatic RWD 22.73
See all data

Return to top

TrueDelta Reviews the Real Gas Mileage of the 2013 Mercedes-Benz GLK

2013 Mercedes-Benz GLK Real Gas Mileage: Pros
2013 Fuel economy was a "why not to buy" with the GLK350, as the gas-powered Mercedes-Benz crossover trails the competing Audi and BMW in this area. With the diesel, though, the tables turn. BMW doesn't offer a diesel X3 in North America, at least not yet. For 2014, Audi does offer a Q5 TDI.When I heard that Audi was going to offer a diesel compact crossover, I assumed that the engine in question would be a four-cylinder unit. Nope, it's a 240-horsepower 3.0-liter V6. The official line: a four-cylinder wouldn't suit Audi's performance-oriented brand image in the U.S. With a much smaller engine and (partly as a result) a couple hundred pounds less curb weight, the GLK250 BlueTEC tops the Q5 in fuel economy. But, according to the EPA, only on the highway, with a rating of 33 mpg vs. 31.Both crossovers achieve an EPA city rating of 24 mpg. In the real world, the GLK250 impresses in suburuban driving, with the trip computer usually reporting averages from 31 to 35, and on one run to my son's school nearly 40. This is about 50 percent better than in the GLK350. see full Mercedes-Benz GLK review
2013 Mercedes-Benz GLK Real Gas Mileage: Cons
If you prioritize performance, the GLK's mandatory 3.5-liter V6, upgraded via direct injection from 268 to 302 horsepower for 2013, might seem a good thing. But even after the power bump, the boosted sixes in the Audi and BMW are stronger, and they're paired with more responsive eight-speed automatics (vs. a seven-speed transmission introduced nearly a decade ago). More of an issue for most potential buyers: fuel economy. The GLK350 is more efficient for 2013, thanks to direct injection, electric-steering assist, driving style feedback, and a shudder-free automatic start/stop system (study it, BMW). The EPA ratings have improved from last year's 16 mpg city, 21 highway to 19/24. But even 19/24 is only marginally competitive in the 2013 challenge. The BMW X3 xDrive28i is nearly as quick, and rates 21/28. The quicker X3 xDrive35i matches the GLK in the city, but does a couple mpg better on the highway. In our real-world suburban driving, the GLK350 trailed the BMW X3 xDrive28i by one to two mpg. Not a big difference, but a difference. Mercedes will soon offer a more fuel-efficient engine option in North American GLKs. But it won't be a smaller gas engine. Instead, the new GLK250 will be motivated by a 190-horsepower, four-cylinder diesel engine. see full Mercedes-Benz GLK review

What Our Members Are Saying about the Real Gas Mileage of the 2013 Mercedes-Benz GLK

2013 Mercedes-Benz GLK Real Gas Mileage: Pros
2013 4dr SUV turbocharged 168hp 2.1L I4 Diesel
7-speed shiftable automatic AWD
The diesel option was the #1 reason I looked at the vehicule and the deciding point to go with it. At over 200 miles per day to communte, I needed the mileage numbers and in Quebec, diesel is less expensive than regular gas and way less than premium. see full Mercedes-Benz GLK review

2013 Mercedes-Benz GLK Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Mercedes-Benz GLK's real-world MPG based on how and where you drive a car.