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2015 Mercedes-Benz GLK-Class Overview, Reviews, Ratings & Specs

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Simon A | September 24, 2025
The 2015 Mercedes-Benz GLK-Class is a compact luxury SUV, representing the final model year of its first generation (X204), which ran from 2009-2015. Available as the GLK350 and the efficient GLK250 BlueTEC diesel, it offered a new price range from approximately $38,000 to $40,000. Its distinctive, boxy, and rugged styling, a nod to the G-Wagen, set it apart from sleeker competitors, appealing to buyers seeking a blend of classic Mercedes-Benz aesthetics and modern practicality.
The Good

The GLK-Class offers robust V6 performance or excellent diesel efficiency, appealing to practical buyers seeking fuel savings. Its solid, well-built interior and comfortable ride provide a refined driving experience. The unique, angular design evokes a sense of timeless luxury and distinctiveness, satisfying emotional desires for a premium, non-conformist aesthetic. Good reliability for its class adds to its practical appeal.

The Bad

Known weaknesses for the 2015 GLK-Class include a somewhat firm ride with larger wheels, a smaller cargo area compared to some rivals, and a COMAND infotainment system that can feel dated. Maintenance and repair costs, typical for a luxury brand, are higher than average. Certain electrical glitches and transmission issues have been reported.

2015 Mercedes-Benz GLK-Class: Quick Overview

The 2015 Mercedes-Benz GLK-Class offered two primary powertrains:

  • GLK350:
    • Engine: 3.5-liter naturally aspirated V6
    • Horsepower: 302 hp @ 6,500 rpm
    • Torque: 273 lb-ft @ 3,500-5,250 rpm
    • Fuel Economy (EPA estimated):
      • RWD: 19 mpg city / 27 mpg highway / 22 mpg combined
      • 4MATIC AWD: 19 mpg city / 25 mpg highway / 21 mpg combined
    • 0-60 mph: Approximately 6.1 seconds (RWD) / 6.3 seconds (4MATIC)
  • GLK250 BlueTEC (Diesel):
    • Engine: 2.1-liter turbocharged diesel I4
    • Horsepower: 200 hp @ 3,800 rpm
    • Torque: 369 lb-ft @ 1,600-1,800 rpm
    • Fuel Economy (EPA estimated): 24 mpg city / 33 mpg highway / 28 mpg combined (4MATIC AWD only)
    • 0-60 mph: Approximately 7.9 seconds

Towing Capacity: Both models, when properly equipped, had a towing capacity of up to 3,500 pounds.
Trim-Level Features:
The GLK-Class was offered primarily in the GLK350 (RWD or 4MATIC) and GLK250 BlueTEC (4MATIC) configurations, with a host of optional packages.
  • Standard Features: 19-inch alloy wheels, automatic headlights, LED daytime running lights, roof rails, dual-zone automatic climate control, eight-way power front seats, MB-Tex premium vinyl upholstery, a tilt-and-telescoping steering wheel, Bluetooth phone and audio connectivity, a 5.8-inch display, and a six-speaker sound system with a CD player and auxiliary audio jack.
  • Premium 1 Package: Adds a power liftgate, auto-dimming mirrors, power-folding side mirrors, driver memory functions, satellite radio, and an iPod/media player interface.
  • Multimedia Package: Includes a larger 7-inch display, COMAND interface, navigation system, voice controls, and a rearview camera.
  • Lighting Package: Bi-xenon headlights with active curve illumination and automatic high-beam control.
  • Sport and AMG Sport Packages: Larger wheels (20-inch), sportier exterior styling, and aluminum roof rails.
  • Driver Assistance Package: Adaptive cruise control, blind-spot monitoring, and lane-keeping assist.
  • Stand-alone Options: Panoramic sunroof, leather upholstery, heated front seats, parking sensors, harmon/kardon surround-sound audio system.

2015 Mercedes-Benz GLK-Class Specifications

Vehicle Information
Year 2015
Make Mercedes-Benz
Model GLK-Class
Trim -
Style -
Type Minivan
Category Standard Sport Utility Vehicle
Manufacturing Details
Made In Germany
Manufacturing City BREMEN
Dimensions
Doors 5-Door
Curb Weight -
Gross Vehicle Weight Rating 6000 pounds
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 3.5-L V-6 gasoline direct injection, dohc, variable valve control
Engine Size 3.5L
Engine Cylinders 6
Transmission 7-Speed Automatic
Transmission Type Automatic
Transmission Speeds 7-Speed
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

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What Problems Does the 2015 Mercedes-Benz GLK-Class Have?

For the 2015 Mercedes-Benz GLK-Class, while generally considered reliable for a luxury vehicle, some common issues and long-term concerns have been reported. A notable area of concern for some owners is the 7-speed automatic transmission. While smooth when functioning correctly, occasional reports of rough shifts, delayed engagement, or clunking sounds, especially in earlier model years of this transmission series, can arise. For the 2015 model, software updates often addressed minor shift quality issues, but proper maintenance of transmission fluid is crucial for longevity.
Electrical problems, though not widespread, can manifest as issues with sensors, the infotainment system (COMAND), or various dashboard warning lights. Battery drain issues, often stemming from parasitic draws, are also sometimes reported and can be challenging to diagnose without specialized tools.
The diesel GLK250 BlueTEC, while efficient, introduces additional complexity. Owners should be aware of potential issues with the AdBlue (Diesel Exhaust Fluid) system, including sensor malfunctions or crystallization in the lines, which can trigger check engine lights and sometimes lead to reduced engine power. Diesel particulate filter (DPF) regeneration issues can also occur, especially if the vehicle is primarily driven short distances without sufficient highway time. Fuel injector problems, while less common, are also a potential long-term concern for diesel engines.
Suspension components, such as control arm bushings or strut mounts, may show wear over time, leading to noises or a less composed ride, particularly at higher mileages. Power steering pump failures or leaks have been reported, though not excessively.
Regarding recalls for the 2015 GLK-Class, it's important to check the NHTSA website using the specific VIN. However, common recalls across the GLK generation often included issues like potential for unfastened engine compartment insulation, possible fuel pump failure, and an auxiliary battery relay which could cause a vehicle stall. For the 2015 model year specifically, a notable recall (NHTSA Campaign Number 15V096000) involved the power steering system, where a potential loss of power steering assist could occur due to an electrical power steering control unit. Another (NHTSA Campaign Number 15V225000) related to the passenger frontal airbag inflator, which could rupture. Always verify open recalls for any specific vehicle.

How long will the 2015 Mercedes-Benz GLK-Class last?

With diligent maintenance, the 2015 Mercedes-Benz GLK-Class can achieve an average lifespan of 150,000 to 200,000 miles or 10 to 15 years of service. Many owners report reaching these figures without major powertrain overhauls. The V6 engine is generally robust, as is the diesel if properly cared for. Long-term durability is a strong point, stemming from Mercedes-Benz's engineering. However, weaknesses emerging over time include potential for suspension component wear (bushings, shocks), which can affect ride quality and handling. Electrical gremlins, such as malfunctioning sensors or infotainment system glitches, can become more frequent. The diesel's emissions system components like the DPF and AdBlue system may require costly attention post-100k miles. Preventative maintenance, particularly fluid changes (engine oil, transmission, differential), is crucial for maximizing its lifespan.

What Technology & Safety Features are Included?

The 2015 Mercedes-Benz GLK-Class offered a respectable suite of technology and safety features for its era, blending standard essentials with desirable optional upgrades.
Built-in Tech & Entertainment:
Standard features included a 5.8-inch color display controlled by dashboard buttons and a central knob, a six-speaker sound system with a CD player, auxiliary audio jack, and Bluetooth phone and audio connectivity. The available COMAND infotainment system, accessed via a larger 7-inch display and a console-mounted knob, added a navigation system with voice controls, a rearview camera, and an iPod/media player interface. Other optional entertainment enhancements included an upgraded harmon/kardon surround-sound audio system and satellite radio.
Driver-Assistance Features:
Standard driver aids were limited to basic cruise control. However, a significant array of optional driver-assistance technologies was available. The Driver Assistance Package included adaptive cruise control (Distronic Plus), blind-spot monitoring (Blind Spot Assist), and lane-keeping assist (Lane Keeping Assist), significantly enhancing safety and convenience on highways. Parking sensors (Parktronic) were also an available option to aid maneuvering in tight spaces.
Safety Features:
Standard safety equipment was comprehensive, including antilock brakes (ABS), traction and stability control, active front head restraints, nine airbags (front, front-side, rear-side, driver knee, and full-length side curtain airbags), and a driver attention monitor (Attention Assist). Mercedes-Benz's PRE-SAFE system, which anticipates a crash and tightens seatbelts and adjusts front passenger seat, was also standard. A rearview camera was part of the Multimedia Package.
Crash-Test Ratings:
The 2015 Mercedes-Benz GLK-Class received strong crash test ratings.
  • Insurance Institute for Highway Safety (IIHS):
    • Moderate Overlap Front: Good
    • Side: Good
    • Roof Strength: Good
    • Head Restraints & Seats: Good
    • Small Overlap Front (driver-side): Acceptable (for models built after September 2013)
  • National Highway Traffic Safety Administration (NHTSA):
    • Overall Safety Rating: Not rated for the 2015 model year, but earlier models of this generation typically achieved high ratings. Often, IIHS ratings are more comprehensive for luxury compact SUVs.

Overall, the GLK offered a solid foundation of safety with the option to equip it with advanced driver aids that were cutting-edge for its time.

What Colors Options are Available?

We’re working on this section!
In the meantime, feel free to explore the other sections for more content.

2015 Mercedes-Benz GLK-Class Prices and Market Value

When new, the 2015 Mercedes-Benz GLK-Class had an MSRP starting around $38,000 for the RWD GLK350, with the 4MATIC version closer to $40,000, and the GLK250 BlueTEC typically starting around $40,000-$41,000. Optioned models could easily reach into the mid-$50,000s.
Today, in the used market, prices for a 2015 GLK-Class typically range from approximately $10,000 to $18,000, depending heavily on mileage, condition, optional features, and maintenance history. Diesel models often command a slight premium due to their fuel efficiency. Depreciation has been significant, as is typical for most luxury vehicles once they are five to ten years old. Factors affecting resale value include the overall cosmetic and mechanical condition, whether it has a clean title, comprehensive service records, desirable packages (like the Multimedia or Driver Assistance packages), and low mileage. Color preference, regional demand, and remaining tire/brake life also play a role. Luxury vehicles generally depreciate faster than mainstream brands, and the GLK, being replaced by the GLC, followed this trend.

2015 Mercedes-Benz GLK-Class Cost of Ownership

Owning a 2015 Mercedes-Benz GLK-Class generally incurs higher-than-average long-term costs. Insurance premiums tend to be above mainstream compact SUVs due to its luxury branding and repair expenses. Fuel costs vary: the GLK350 (V6) is moderately thirsty, while the GLK250 BlueTEC diesel offers excellent efficiency, significantly reducing fuel expenditure. Maintenance and repair are notably costly; expect premium prices for parts and labor at Mercedes-Benz dealerships or specialized independent shops. Routine service (e.g., 'A' and 'B' services) can range from a few hundred to over a thousand dollars. Specific issues like AdBlue system repairs on the diesel can be expensive. Overall, the 2015 GLK-Class is a costly vehicle to own, reflecting its luxury status rather than economy.

2015 Mercedes-Benz GLK-Class Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2015 Mercedes-Benz GLK-Class Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Overall Side Star Rating Not Tested
Side Barrier Star Ratings Not Tested
Side Pole Star Rating Not Tested
Combined Side Barrier And Side Pole Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2015 Mercedes-Benz GLK-Class Insurance

Insurance for a 2015 Mercedes-Benz GLK-Class is moderately priced, reflecting its status as a Minivan with strong safety ratings and
reasonable repair costs.

How Does the 2015 Mercedes-Benz GLK-Class Compare to Other Minivan?

The 2015 Mercedes-Benz GLK-Class competed in a fiercely contested compact luxury SUV segment against formidable rivals like the BMW X3, Audi Q5, Lexus NX, and Acura RDX.
Performance: The GLK350's 302-hp V6 offered competitive power, often feeling more muscular than the base engines of the X3 and Q5, though it lacked the X3's dynamic handling prowess. The GLK250 BlueTEC stood out with its diesel torque and superior fuel economy, a distinct advantage over most gasoline-only rivals, except perhaps for the X3 diesel. The X3 generally offered sportier handling, while the Q5 balanced comfort and agility. The RDX offered a strong V6 but often felt less refined.
Features: The GLK offered a solid list of standard and optional luxury features. However, its COMAND infotainment system, while functional, could feel less intuitive and graphically dated compared to BMW's iDrive or Audi's MMI, which often had more modern interfaces. The Lexus NX (introduced for 2015) brought fresher tech and standard safety features. Interior quality in the GLK was excellent, but its cargo space was smaller than many rivals, notably the X3 and Q5.
Reliability: All vehicles in this class demand premium maintenance. The GLK generally has good reliability for its segment, comparable to the X3 and Q5, though luxury vehicles inherently have more complex systems that can lead to costly repairs. Lexus and Acura models (NX, RDX) are often cited as having superior long-term reliability and lower repair costs.
Price: New, the GLK was competitively priced with its German rivals, slightly undercutting some highly optioned Q5s and X3s. On the used market, the GLK has depreciated significantly, making it an attractive value proposition for buyers seeking luxury at a lower entry price. However, its maintenance and repair costs remain consistent with luxury brands, potentially negating some initial savings.
Alternatives:
  • BMW X3 (F25 generation): Offers better driving dynamics, more cargo space, and a potentially more modern infotainment. Good alternative for those prioritizing sportiness.
  • Audi Q5 (8R generation): Known for a refined interior, excellent AWD system, and a balanced ride. A strong contender for comfort and luxury.
  • Lexus NX (first generation): For buyers prioritizing bulletproof reliability, lower running costs, and a more contemporary interior/exterior design, the NX is a compelling alternative.
  • Acura RDX: Offers strong value, good reliability, and a peppy V6, though often lacks the ultimate luxury feel of the German trio.

The GLK appeals to those who appreciate its distinctive styling and solid Mercedes-Benz feel, but for performance or modern tech, rivals often surpass it.

Final Verdict: Is the 2015 Mercedes-Benz GLK-Class a Good Minivan?

The 2015 Mercedes-Benz GLK-Class is an ideal choice for buyers who appreciate its distinctive, rugged-yet-luxurious styling and solid, premium build quality, setting it apart from more fluidly designed competitors. It's excellent for individuals or small families seeking a compact luxury SUV with a firm, confident ride, and either robust V6 performance or the impressive fuel efficiency of the BlueTEC diesel.
As a used vehicle, it can be worth buying for those on a tighter budget who desire a luxury brand experience, as its initial depreciation has made it more accessible. However, prospective owners must be prepared for luxury-tier maintenance and repair costs; this is not an economical vehicle to run long-term. Look for well-maintained examples with complete service records, ideally from a Mercedes-Benz enthusiast. The GLK250 BlueTEC is particularly attractive for those prioritizing efficiency, but ensure its AdBlue system and DPF have been serviced. Avoid neglected examples to prevent significant future expenses. It's a charming, capable SUV for the right buyer who understands the commitment to luxury ownership.

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Simon A

Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.