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2015 Mercedes-Benz GLK350 review

Research, photos, specs, and expertise

Mercedes-Benz GLK350 highlights

Customer rating

RepairPal reliability rating

Pros

  • Powerful V6 engine
  • Comfortable ride
  • Refined interior

Cons

  • 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

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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, Full Roof Rack, and Bluetooth Technology features are now available as options on select trims.

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

4.4 out of 5

16 customer reviews
The 2015 Mercedes-Benz GLK350 is praised for its smooth ride, strong reliability, and stylish design, though it has mixed feedback on technology and fuel economy. Its interior comfort and handling stand out, but higher costs for maintenance and premium gas may deter some. It's a solid choice for luxury SUV shoppers seeking performance and comfort.

RepairPal reliability rating

3
1
2
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.

Cost

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.

Frequency

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.

Severity

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

Curious how Mercedes-Benz GLK350 trims differ? Use our side-by-side vehicle comparison to see the differences and similarities

4D Sport Utility 2WD

Standard Features

  • Heated Mirrors
  • ABS Brakes
  • Air Conditioning
  • Cruise Control
  • Leatherette Seats
  • Memory Seat(s)
  • Overhead Airbags
  • Power Locks
  • Power Mirrors
  • Power Seat(s)
  • Power Windows
  • Rear Defroster
  • Side Airbags
  • Traction Control
  • Alloy Wheels
  • Automatic Transmission
  • Bluetooth Technology
  • AM/FM Stereo
  • Auxiliary Audio Input
  • CD Audio

Optional Features

  • Automated Cruise Control
  • Blind Spot Monitor
  • Front Seat Heaters
  • Heated Steering Wheel
  • Lane Departure Warning
  • Leather Seats
  • Panoramic Sunroof
  • Parking Sensors
  • Rear View Camera
  • Smart Key
  • 20 Inch Plus Wheels
  • Full Roof Rack
  • Power Hatch/Deck Lid
  • Running Boards
  • Tow Hitch
  • Bluetooth Technology
  • Rear Entertainment System
  • Harman Kardon Sound
  • Navigation System
  • Satellite Radio Ready

Drive Wheels

Rear Wheel Drive (2WD)

Engine size

3.5L

Horsepower

302

Torque (ft-lbs)

273

Engine type

Gas

Fuel capacity

17.4

Wheelbase

108.5"

Overall length

178.3"

Width

74.2"

Height

66.9"

Leg room

F 41.4"/R 35.1"

Head room

F 39.8"/R 39.7"

Front tires

P235/50HR19

Rear tires

P235/50HR19

Seating capacity

5

Max towing capacity

350/3500 lbs.

Transmission

Automatic

2015 Mercedes-Benz GLK350 FAQ


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