Best Bet
  • (4.7) 40 reviews
  • Inventory Prices: $22,896–$36,712
  • Body Style: Sport Utility
  • Combined MPG: 21-28
  • Engine: 200-hp, 2.1-liter I-4 (diesel)
  • Drivetrain: All-wheel Drive
  • Seats: 5
2015 Mercedes-Benz GLK-Class

Our Take on the Latest Model 2015 Mercedes-Benz GLK-Class

What We Don't Like

  • Small cargo area
  • Cramped backseat
  • Highway wind noise
  • Aged interior technology

Notable Features

  • Standard V-6 (GLK350)
  • Rear- or all-wheel drive
  • Seats five
  • Diesel-powered GLK250 (AWD only)
  • 19-inch wheels
  • Stop/start technology

2015 Mercedes-Benz GLK-Class Reviews Expert Reviews

The 2015 Mercedes-Benz GLK's small footprint and nimble, refined driving experience stand out, despite its otherwise dated luxury experience.

The 2015 Mercedes-Benz GLK350 4Matic could very well be the last GLK — in name, anyway. Mercedes is revamping its model nomenclature, so the successor to the GLK will be the GLC, which is rumored to be released as a 2016 model. Even after a mild 2013 refresh, the GLK is showing its age compared with Mercedes' latest and greatest cars, like the 2015 C-Class sedan.

Introduced for 2010, the GLK received a minor refresh for 2013 with a new engine, an interior update and a slightly tweaked exterior. Compare the 2015 with the 2013 and 2010 here. I tested a simply optioned GLK350 with 4Matic all-wheel drive; its cost was $45,025 with a destination fee. The GLK350 starts at $38,825 with rear-wheel drive, while an all-wheel-drive, diesel-powered GLK250 is available starting at $40,325.

Exterior & Styling
The GLK's chiseled appearance and square roofline stand out in a crowded segment of mostly soft-styled luxury SUVs. The GLK's traditional SUV styling makes it appear larger than it really is: Bumper to bumper, the GLK is 4.3 inches shorter than the Audi Q5, 5.2 inches shorter than the Acura RDX and a sizable 9.5 inches shorter than the Lexus RX 350. It's even shorter — by 0.9 inches — than a segment newcomer, the 2015 Lincoln MKC. Compare the GLK to its longtime competitors here and to the MKC here.

The GLK's upright shape provides fantastic visibility from the driver's seat thanks to tall windows, thin body pillars and a squared roofline. Small side mirrors are the only weak spot in the GLK's otherwise commanding view of the road.

How It Drives
A well-sorted suspension and tight steering connect the GLK to the road with supreme levels of sure-footedness. The available full-time all-wheel-drive system does the same in snowy and slippery conditions; it's well worth the $2,000 premium it commands. A tight 37.6-foot turning circle and extremely nimble nature make the GLK a master of city driving; U-turns and tight corners are easily conquered by the sprightly SUV. Mercedes calls the GLK-Class midsize, but it drives like a much smaller compact SUV.

Small turbocharged engines are gaining popularity in other Mercedes-Benz cars and SUVs for their increased fuel economy, and it's possible you'll see a turbocharged offering in the GLK's successor. If that's the case, I'll miss the current GLK's standard engine: a naturally aspirated 302-horsepower, 3.5-liter V-6. Sure, fuel economy could be improved from the all-wheel-drive's 18/25/21 mpg city/highway/combined figures, but it's hard to replicate in a turbocharged one the punchiness of a good naturally aspirated engine. The GLK's V-6 offers a potent punch of acceleration, with instantaneous accelerator response and a healthy V-6 growl under the hood. A diesel-powered GLK250 is rated 24/33/28 mpg with standard all-wheel drive and is one of a few diesel-powered SUVs in the segment.

Other noises inside the GLK aren't as pleasant, like the intrusive wind you'll hear whistling past the exterior at high speeds. The excessive noise is almost like a light switch that turns on at 50 mph and above, marring an otherwise refined highway driving experience, as the GLK tracks true on the highway with minimal fuss.

The GLK's cabin isn't claustrophobic despite having a decidedly more compact exterior than competing SUVs. The backseat, however, is tight. It's not an uncomfortable experience, like you'll find in Mercedes' smaller GLA-Class SUV, but it's snug and the backrest is raked at an awkward angle without any adjustable reclining function. Much larger SUVs like the RX 350 have hugely roomy backseats; I even found the Q5's slightly larger backseat more comfortable than that of the GLK.

The interior is put together with decent materials, providing a satisfactory luxury experience. Not one particular finish stands out, however, and the design as a whole is somewhat uninspiring. Our test car was equipped with the standard MB-Tex imitation leather upholstery, which I find convincing enough. Leather upholstery, which is standard on the base Acura and Audi, is an $1,850 option here. Our GLK test car featured no-cost burl walnut wood trim, heated front seats ($750) and the Premium Package ($3,450), which included a panoramic moonroof, power liftgate, 115-volt AC household outlet and more.

There isn't much new blood in this aging class of SUVs except for the Lincoln MKC, which provides a surprisingly luxurious experience for the money and a much more interesting, high-tech interior than the GLK. You'd think the GLK hadn't been redesigned for some time, and from the ground up it hasn't been, but it was touched up for 2013 with a new dashboard and interior materials. The update, though, merely brought the GLK up to an average level of quality. Given what we've seen Mercedes accomplish with the all-new 2015 C-Class compared with its previous generation, there's promise for a GLK successor to make a big leap in the interior finish and design department.

Ergonomics & Electronics
Multimedia technology is moving at lightning speed, and the GLK's standard multimedia system is stuck in the Stone Age. The system might not have been as big a disappointment if we hadn't already grown enamored with Mercedes' latest high-resolution-plus-touchpad technology in the C-Class.

The GLK's standard 5-inch screen is simply not enough real estate to legibly display the many functions of the GLK's central controller system, which is used to control radio, media and car functions. The graphics are also dated. A 7-inch screen is available with navigation and a backup camera as part of a $2,970 Multimedia Package. Lincoln's MKC includes a standard 8-inch touch-screen with much higher-quality graphics, plus two USB ports.

Bluetooth hands-free phone connectivity, Bluetooth streaming audio and a USB port for thumb drives are standard, and a Media Interface option allows the use of an iPod or iPhone through the GLK's audio controls (it's a $310 stand-alone option and is also part of the aforementioned $3,450 Premium Package). Our test car came with an Apple 30-pin connector for older iPhones. Mercedes' website says an Apple adapter is required for use with the eight-pin Lightning connector used on later-model devices.

Cargo & Storage
The GLK's small stature doesn't show on the inside until you need to use the cargo area, which measures just 16.5 cubic feet behind the backseat. The RDX has 26.1 cubic feet, the MKC 25.2 cubic feet, the Q5 has 29.1 cubic feet and the RX — as its significant size suggests — has the most, at 40 cubic feet. Using the cargo area was at least easy thanks to our test car's power liftgate, which is included in the Premium Package.

With the 60/40-split folding backseat down, the GLK has a maximum cargo capacity of 54.7 cubic feet. That's smaller than its competitors; the closest in size is the Q5's 57.3 cubic feet of cargo space.

The 2015 GLK earned the Insurance Institute for Highway Safety's highest score of good in all crash tests to which it's been subjected, which currently excludes the small overlap front crash test. A score of good or acceptable would earn the agency's Top Safety Pick Plus designation for the GLK. The National Highway Traffic Safety Administration had not crash-tested the GLK as of this writing.

See here for a full list of standard safety features; a backup camera isn't one of them. Instead, the camera is packaged into an expensive $2,970 Multimedia Package. Luxury automakers haven't adopted the standard backup camera as readily as some non-luxury automakers, such as Honda.

Mercedes includes six months of its mbrace telematics system standard, which includes emergency response and 24-hour support. Active-safety options include a Lane Tracking Package with blind spot monitoring and lane keeping assist for $875. Available Pre-Safe Brake — as part of a $2,950 Driver Assistance Package — can help prevent an impending collision by sounding an alert and braking the vehicle when an imminent collision is detected. That package also includes blind spot monitoring, lane keeping assist and adaptive cruise control.

Value in Its Class
The compact-to-midsize luxury SUV segment isn't the freshest lineup at the moment. The GLK, Audi Q5 and RX 350 all have a few years under their belts, and the GLK feels the most dated of the three. An all-wheel-drive GLK350 like our test car starts at $40,825, and with $750 heated front seats and a $3,450 Premium Package, it added up quickly to our $45,025 as-tested price.

At $45,025, the GLK didn't include a backup camera, smart keyless access with push-button start, or navigation — features you can add to the Q5 and MKC easily for the same price. Those cars also bring much more contemporary interiors and additional cargo space. The GLK is one of the best-driving luxury SUVs in its segment, but it's less well-rounded — in usefulness and design — than its competitors.


Consumer Reviews


Average based on 40 reviews

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The nicest vehicle I?ve ever owned.

by MadisonK from Wichita Falls, TX on January 15, 2018

This vehicle has met my every need. The vehicle is so smooth, comfortable & luxurious. I love it with my whole heart!

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3 Trims Available

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Wondering which configuration is right for you?
Our 2015 Mercedes-Benz GLK-Class trim comparison will help you decide.

2015 Mercedes-Benz GLK-Class Safety Ratings

Crash-Test Reports

IIHS Ratings

Based on Mercedes-Benz GLK-Class Base

Head Restraints and Seats
Moderate overlap front
Roof Strength

IIHS Ratings

Based on Mercedes-Benz GLK-Class Base

G Good
A Acceptable
M Marginal
P Poor

Head Restraints and Seats

Dynamic Rating
Overall Rear
Seat Head/Restraint Geometry

Moderate overlap front

Left Leg/Foot
Overall Front
Right Leg/Foot
Structure/safety cage


Roof Strength


Driver Head Protection
Driver Head and Neck
Driver Pelvis/Leg
Driver Torso
Overall Side
Rear Passenger Head Protection
Rear Passenger Head and Neck
Rear Passenger Pelvis/Leg
Rear Passenger Torso
Structure/safety cage
Insurance Institute for Highway Safety (IIHS) is a nonprofit research and communications organization funded by auto insurers. IIHS rates vehicles good, acceptable, marginal or poor based on performance in high-speed front and side crash tests. IIHS also evaluates seat/head restraints for protection against neck injuries in rear impacts.


There are currently 2 recalls for this car.

Safety defects and recalls are relatively common. Stay informed and know what to do ahead of time.

Safety defects and recalls explained

Service & Repair

Estimated Service & Repair cost: $2,200 per year.

Save on maintenance costs and do your own repairs.

Warranty Coverage





Roadside Assistance Coverage


What you should get in your warranty can be confusing. Make sure you are informed.

Learn More About Warranties

Warranties Explained


Often called a basic warranty or new-vehicle warranty, a bumper-to-bumper policy covers components like air conditioning, audio systems, vehicle sensors, fuel systems and major electrical components. Most policies exclude regular maintenance like fluid top offs and oil changes, but a few brands have separate free-maintenance provisions, and those that do offer them is slowly rising. Bumper-to-bumper warranties typically expire faster than powertrain warranties.


Don't be misled a 10-year or 100,000-mile powertrain warranty doesn't promise a decade of free repairs for your car. It typically covers just the engine and transmission, along with any other moving parts that lead to the wheels, like the driveshaft and constant velocity joints. Some automakers also bundle seat belts and airbags into their powertrain warranties. With a few exceptions, powertrain warranties don't cover regular maintenance like engine tuneups and tire rotations.

Roadside Assistance

Some automakers include roadside assistance with their bumper-to-bumper or powertrain warranties, while others have separate policies. These programs cover anything from flat-tire changes and locksmith services to jump-starts and towing. Few reimburse incidental costs like motel rooms (if you have to wait for repairs).

Free Scheduled Maintenance

Some automakers include free scheduled maintenance for items such as oil changes, air filters and tire rotations. Some include consumables including brake pads and windshield wipers; others do not. They are typically for the first couple of years of ownership of a new car.

Other Years