2015 Mercedes Benz GLK350

Research, photos, specs, and expertise

Mercedes-Benz GLK350 highlights

Customer rating


  • Powerful V6 engine
  • Comfortable ride
  • Refined interior


  • The back seat is cramped for adults
  • Intrusive wind noise at high speeds
  • Less cargo space than rivals

Mileage (EPA estimate)

18 city, 25 highway, 21 combined

Pricing for current inventory

(no current inventory)


The 2015 Mercedes-Benz GLK350 is luxurious and powerful

The 2015 Mercedes-Benz GLK350 is a luxury crossover SUV that comes standard with a powerful V6 engine. The GLK is a bit smaller than roomier rivals like the BMW X3 and the Acura RDX, but its cabin is luxuriously comfortable and it handles as well as many luxury sedans.

The GLK350 was on sale from 2010 to 2015 and received no changes in its final year of production. There are many available features on the GLK350, but few of them come standard. The Premium 1 package makes a nice SUV even more refined, while a pair of lighting and safety packages add extra features.

All Mercedes-Benz GLK350's come with power-adjustable seats, cruise control, and Bluetooth® audio connectivity. You can also play music from your smartphone using an auxiliary cord, but Apple CarPlay® and Android Auto™ are unavailable.

All Mercedes-Benz GLK350 years

What is new for the 2015 Mercedes-Benz GLK350?

  • Automated Cruise Control and Full Roof Rack features are now available as options on select trims.

5 reasons to buy the 2015 Mercedes-Benz GLK350

What We Like 

  • Luxurious interior: This is one of the smallest SUVs Mercedes-Benz has produced but it does not skimp on luxury features. The interior is plush and filled with high-quality materials.  

  • Plenty powerful: The V6 engine that comes with every GLK350 delivers robust power. Merging onto a crowded highway is neither a problem in the Mercedes-Benz nor climbing steep inclines.  

  • Comfortable ride: The GLK350 absorbs most of the bumps, ruts, or jolts it encounters. It delivers a smooth ride but doesn't feel floaty when going over bumps. And most road and wind noise are blocked until you get to speeds higher than 70 mph. 

What Needs Improvement 

  • Cramped back seat: The most obvious trade-off of the Mercedes-Benz GLK350 is its interior space. The SUV is a bit smaller than its rivals and that is most obviously felt by rear passengers and evident in the slim cargo space behind the rear seats.

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Ratings & reliability

Customer ratings

The 2015 Mercedes-Benz GLK350 is a small, powerful SUV that has a smooth ride. Customers like the car's comfort, power, and style.
Above Average

RepairPal gave the Mercedes-Benz GLK350 an overall reliability rating of 3.5 out of 5 stars, which RepairPal describes as Above Average. This rating ranks Mercedes-Benz GLK350 8th out of 18 among Luxury Compact SUVs.

RepairPal reports that the average total annual cost for repairs and maintenance on a Mercedes-Benz GLK350 is $523, compared to an average of $599 for Luxury Compact SUVs and $591 for all the vehicles RepairPal considered in its dataset.

According to RepairPal, Mercedes-Benz GLK350 owners bring their vehicles into a repair shop for unscheduled repairs an average of 1.4 times per year, compared to an average of 1.2 times for Luxury Compact SUVs and 1.3 times for all the vehicles RepairPal considered in its dataset.

RepairPal reported that the probability of a repair being a severe or major issue is 8% for the Mercedes-Benz GLK350, compared to an average of 10% for Luxury Compact SUVs and 14% for all the vehicles RepairPal considered in its dataset.

Mercedes-Benz GLK350 features and specs

(no trim) 2WD 4D Sport Utility

Standard Features

  • ABS Brakes
  • Air Conditioning
  • Alloy Wheels
  • AM/FM Stereo
  • Automatic Transmission
  • Auxiliary Audio Input
  • Bluetooth Technology
  • CD Audio
  • Cruise Control
  • Leatherette Seats
  • Memory Seat(s)
  • Overhead Airbags
  • Power Locks
  • Power Mirrors
  • Power Seat(s)
  • Power Windows
  • Rear Defroster
  • Side Airbags
  • Traction Control
  • 20 Inch Plus Wheels
  • Automated Cruise Control
  • Blind Spot Monitor
  • Bluetooth Technology
  • Front Seat Heaters
  • Full Roof Rack
  • Harman Kardon Sound
  • Heated Steering Wheel
  • Lane Departure Warning
  • Leather Seats
  • Navigation System
  • Panoramic Sunroof
  • Parking Sensors
  • Power Hatch/Deck Lid
  • Rear Entertainment System
  • Rear View Camera
  • Running Boards
  • Satellite Radio Ready
  • Smart Key
  • Tow Hitch

Drive Wheels

Rear Wheel Drive (2WD)

Engine size




Torque (ft-lbs)


Engine type


Fuel capacity




Overall length






Leg room

F 41.4"/R 35.1"

Head room

F 39.8"/R 39.7"

Front tires


Rear tires


Seating capacity


Max towing capacity

350/3500 lbs.



2015 Mercedes-Benz GLK350 FAQ

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