Kne Motors Inc

2431 S. High ST, Columbus, OH 43207
3.7
3.7 out of 5 stars

Used 2021 Mercedes-Benz GLB GLB 250 4MATIC

115,464 miles
For Sale:$15,999

$1,000(-5.9%)price drop

Estimated payment:$363/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $19,000 and $22,400, while the current price is $15,999.$19,000 - $22,400$15,999
  • Priced at $15,999, this vehicle is $3,001 (16%) below the low end of its fair market value of $19,000.

  • The current fair market price range is between $19,000 to $22,400.

  • It has 115,464 miles, which is 63,064 (120%) above the median mileage of 52,400.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report

SequenceDatePrice ChangeCurrent Price
1.4/14/2026 (4 days ago)$16,999
2.4/15/2026 (3 days ago)-$1,000 (-5.9%)$15,999
  • SUV
  • Luxury
  • Crossover
  • High-Tech
  • Vaulted Headroom
  • Condition
    Used
  • Mileage
    115,464miles
  • Aggregate Ratings
    3.6
    3.6 out of 5 stars
  • Generation
    1(2020 - 2026)
  • Trim
    GLB 250 4MATIC
  • Drivetrain
    All Wheel
  • Transmission
    8-Speed Double Clutch Automatic
  • MPG
    23 city30 highwayMax range: 477 miles
  • Exterior Color
    Black
  • Interior Color
    Black
  • Upholstery
    Leather
  • Size Segment
    Compact
  • Doors
    4
  • Max Seating
    7
  • Acceleration (0-60 mph)
    6.9seconds
  • Max Towing Capacity
    0lbs.
  • Ground Clearance
    5.3inch
  • NHTSA Safety Ratings
    5
    5 out of 5 stars
  • Final Assembly Point
    Aguascalientes, Mexico
  • VIN
    W1N4M4HB9MW126212
  • Starting MSRP
    $40,050

Engine2L I4 Gasoline 221hp

  • Fuel Type:Gasoline
  • Fuel Quality:91
  • Max Horsepower:221 hp @ 5500 rpm
  • Power to Weight Ratio:17.01lbs/hp
  • Max Torque:258 ft.lbf @ 1800 rpm
  • Displacement:2liters
  • Block Type:I
  • Cylinders:4
  • Aspiration:Turbo
  • Fuel Induction:Direct Injection
  • Redline:6,500rpm
  • Oil Capacity:5.5liters
  • Cam Type:DOHC
  • Stroke:3.62
  • Bore:3.27
  • Valves:16

* Based on opinions and should be considered as general guidance only.

  • Reliability (3)
    3 out of 5 stars
    While Mercedes-Benz has improved its reliability, it generally ranks average for the luxury segment. Owners may experience minor electronic glitches, but major mechanical issues are rare when properly maintained.
  • Maintenance (2)
    2 out of 5 stars
    As a luxury vehicle, maintenance costs for the GLB 250 4MATIC are higher than average. Parts and labor for routine servicing and repairs can be expensive, and specialized Mercedes-Benz service is often required.
  • Technology (5)
    5 out of 5 stars
    Mercedes-Benz's MBUX infotainment system is a highlight, offering intuitive controls, a crisp display, and advanced voice recognition. Standard features like Apple CarPlay and Android Auto are seamless, and available driver-assist technologies are comprehensive.
  • Comfort (4)
    4 out of 5 stars
    The interior is surprisingly spacious for its class, with comfortable seating for five and decent legroom. The ride quality is generally smooth, though larger bumps can be felt. Road and wind noise are well-managed.
  • Dynamics (4)
    4 out of 5 stars
    The GLB 250 4MATIC offers a good balance of agility and stability for a compact SUV. While not overtly sporty, it handles confidently with precise steering and a composed ride. The 4MATIC system provides excellent traction.

  • Comfort & Seating:

    • Power Seats
  • Convenience:

    • 115V Power Outlet
    • Automatic Climate Control
    • Rain Sensing Wipers
  • Entertainment:

    • Bluetooth
  • Exterior:

    • Heated Mirrors
    • Tinted Windows
  • Safety:

    • Automatic Emergency Braking
    • Autonomous Braking
    • Backup Camera
    • Blind Spot Monitor
    • Collision Avoidance
    • Exit Safety System
    • Tire Pressure Monitoring
  • Technology:

    • Android Auto

  • Seating:

    • Seating Rows:2
    • Standard Seating:5
    • Max Seating:7
    • Head Room (front):40.7in.
    • Leg Room (front):41.1in.
    • Shoulder Room (front):55.9in.
    • Head Room (rear):39.3in.
    • Leg Room (rear):38.1in.
    • Shoulder Room (rear):54.9in.
    • Head Room (3rd row):34.8in.
    • Leg Room (3rd row):29.1in.
    • Shoulder Room (3rd row):43.8in.
  • Measurements:

    • Length:182.4in.
    • Width:79.5in.
    • Height:66.7in.
    • Ground Clearance:5.3in.
    • Wheelbase:111.4in.
    • Front Track:63.2in.
    • Rear Track:63.2in.
  • Interior Dimensions:

    • Interior Volume:125cuft
    • Passenger Volume:112.6cuft
    • Cargo Volume:12.4cuft
    • Cargo Volume (rear seats down):62cuft
  • Weight:

    • Curb Weight:3,759lbs
  • Wheels & Tires:

    • Wheel Diameter:18.0 x 7.5in.
    • Wheel Diameter (rear):18.0 x 7.5in.
    • Tire:235/55R18 100W
    • Tire (rear):235/55R18 100W
  • Performance:

    • Acceleration (0-60 mph):6.9seconds
    • Power to Weight Ratio:17.01lbs/hp
    • Angle of Approach:18degree
    • Angle of Departure:18.3degree
    • Aerodynamic Drag:0.32drag
    • Turning Circle:38.4ft.
    • Breakover Angle:13.9degree
  • Fuel Tank:

    • Fuel Tank Volume:15.9gallon

All warranties have now EXPIRED

  • New Car Basic Warranty
    4 years/50,000 miles
  • 24 Hour Roadside Assistance
    4 years/50,000 miles
  • Corrosion Perforation
    4 years/50,000 miles
  • Transferable Powertrain
    4 years/50,000 miles

2021 Mercedes-Benz GLB

The 2021 Mercedes-Benz GLB blends the premium feel and advanced technology of the Mercedes-Benz brand with the practicality and versatility of a compact SUV. It carves out a unique niche in the luxury segment by offering an optional third row of seating, a feature rarely found in its class. This makes it an appealing choice for families or individuals who need more passenger capacity without stepping up to a larger, more cumbersome vehicle.

Highlights

  • Engine: The standard powertrain for the 2021 GLB is a 2.0-liter turbocharged four-cylinder engine producing 221 horsepower and 258 lb-ft of torque. This engine offers a good balance of performance for everyday driving and confident acceleration. It's mated to an 8-speed dual-clutch automatic transmission that provides smooth and efficient gear changes. Optional 4MATIC all-wheel drive is available, enhancing traction and stability in various road conditions.

  • Safety Features: Mercedes-Benz equips the GLB with a comprehensive suite of advanced safety and driver-assistance systems, many of which are standard:

    • Active Brake Assist (Autonomous Emergency Braking): This system uses sensors to detect potential frontal collisions and can automatically apply the brakes to prevent or mitigate the severity of an accident.
    • ATTENTION ASSIST®: Monitors the driver for signs of fatigue or distraction and provides audible and visual alerts.
    • PRE-SAFE®: If a collision is imminent, this system can automatically prepare the vehicle and its occupants by pre-tensioning seatbelts, adjusting seats, and closing windows.
    • LED Headlamps and Taillamps: Provide excellent visibility at night and improve the vehicle's ability to be seen by other road users.
    • Optional Driver Assistance Package: Offers more advanced features like adaptive cruise control, lane keeping assist, blind-spot monitoring, and active steering assist for a more relaxed and safer driving experience.
  • Trims:

    • GLB 250: The well-equipped base model, offering a strong foundation of luxury and technology.
    • GLB 250 4MATIC: Adds the all-wheel-drive system for enhanced capability.
  • Other Notable Aspects:

    • Optional Third-Row Seating: This is the GLB's standout feature, providing seating for up to seven passengers. While the third row is best suited for children or short trips for adults, it significantly increases the GLB's versatility.
    • MBUX Infotainment System: The GLB features Mercedes-Benz's acclaimed MBUX (Mercedes-Benz User Experience) system. It boasts a responsive touchscreen, natural voice control ("Hey Mercedes"), and a customizable digital instrument cluster.
    • Premium Interior: Despite its compact footprint, the GLB offers a luxurious and well-crafted interior with high-quality materials, intuitive ergonomics, and a sophisticated design.
    • Practicality: The GLB offers a respectable amount of cargo space, and its upright seating position contributes to good outward visibility.

What to Expect

Ownership of a 2021 Mercedes-Benz GLB typically involves a blend of luxury, technology, and practicality. You can expect a refined driving experience, with a comfortable ride quality that absorbs road imperfections well, making it suitable for daily commutes and longer journeys. The MBUX system, while feature-rich, may have a slight learning curve for some users, but its voice control capabilities often simplify interactions.

Maintenance: As with most luxury vehicles, routine maintenance for the GLB will likely be more costly than for a non-luxury brand. This includes scheduled oil changes, filter replacements, and multi-point inspections. Mercedes-Benz vehicles generally recommend service intervals every 10,000 miles or annually, whichever comes first. It's advisable to adhere to the manufacturer's recommended maintenance schedule to ensure longevity and optimal performance. Consider purchasing a pre-paid maintenance plan if available, as this can help manage future service costs.

Insurance: Insurance premiums for the GLB will generally be higher than for comparable vehicles from non-luxury brands, due to the higher cost of parts, repairs, and the vehicle's advanced safety features. Factors such as your driving record, age, location, and chosen coverage levels will significantly impact the final premium. It's recommended to get quotes from multiple insurance providers to find the best coverage at a competitive rate.

Potential Considerations

  • Third-Row Seating Limitations: While the optional third row is a significant advantage, it is quite cramped. It's best suited for children or as occasional seating for adults on shorter journeys. Accessing the third row can also be a bit challenging.
  • Engine Power: While the standard engine is adequate for most situations, some drivers may find it slightly lacking in outright power, especially when fully loaded with passengers and cargo or when merging onto highways at higher speeds.
  • Ride Comfort with Larger Wheels: Opting for larger wheel sizes, while enhancing aesthetics, can sometimes lead to a firmer ride, particularly on rougher road surfaces.
  • Infotainment Complexity: While MBUX is impressive, the sheer number of features and customization options might feel overwhelming for some users who prefer a more straightforward infotainment interface.

Overall Summary

The 2021 Mercedes-Benz GLB stands out in the compact luxury SUV segment by offering a compelling combination of premium features, advanced technology, and, most importantly, the flexibility of optional seven-passenger seating. It delivers a refined driving experience, a well-appointed interior, and a host of safety innovations. While the third row has its limitations and the engine might not satisfy the most performance-oriented drivers, the GLB provides a unique and practical solution for those seeking a versatile and luxurious compact SUV.

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Listed on April 14, 2026 (4 days ago)
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