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2020 Mercedes-Benz GLB-Class Overview, Reviews, Ratings & Specs

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Simon A | March 31, 2025
The 2020 Mercedes-Benz GLB-Class is a compact luxury SUV introduced for the 2020 model year. It offers a unique blend of Mercedes luxury and surprising practicality, boasting an optional third-row seat, uncommon in its class. Key trims include the GLB 250 and the AMG GLB 35. Original pricing ranged from approximately $37,000 to $50,000+. Its boxy design maximizes interior space, making it a popular choice for small families or those needing extra cargo room.
The Good

The 2020 GLB-Class offers a comfortable ride and upscale interior, appealing to those seeking luxury. Its practical advantages include available third-row seating and ample cargo space. Performance is adequate, and fuel efficiency is reasonable. The GLB balances emotional desire for a Mercedes with practical needs for space and versatility.

The Bad

The 2020 GLB-Class's third-row seating is cramped and best suited for children. The base engine can feel underpowered when fully loaded. Some owners have reported issues with the infotainment system and electronic glitches. Watch out for potential issues with early production models and ensure all recalls have been addressed.

2020 Mercedes-Benz GLB-Class: Quick Overview

  • Engine Options:
    • GLB 250: 2.0-liter turbocharged inline-4
    • AMG GLB 35: 2.0-liter turbocharged inline-4 (tuned for higher performance)
  • Horsepower:
    • GLB 250: 221 hp
    • AMG GLB 35: 302 hp
  • Fuel Economy (EPA Estimated):
    • GLB 250: 23 mpg city / 31 mpg highway (FWD)
    • GLB 250: 20 mpg city / 27 mpg highway (AWD)
    • AMG GLB 35: 21 mpg city / 29 mpg highway
  • 0-60 Times:
    • GLB 250: ~6.9 seconds
    • AMG GLB 35: ~5.1 seconds
  • Towing Capacity: Not intended for heavy towing. Maximum towing capacity is around 3,800 pounds when properly equipped (with trailer brake system).
  • Trim-Level Features (GLB 250 - Base):
    • MB-Tex upholstery
    • 7-inch touchscreen infotainment system
    • Apple CarPlay and Android Auto
    • Power front seats with memory
    • LED headlights
    • Automatic emergency braking
  • Trim-Level Features (GLB 250 - Optional Packages/Upgrades):
    • Premium Package: Includes larger 10.25-inch displays, hands-free access, and more.
    • Multimedia Package: Adds navigation and augmented video for navigation.
    • Driver Assistance Package: Adaptive cruise control, lane keeping assist, and blind-spot monitoring.
    • AMG Line: Sportier styling elements.
  • Trim-Level Features (AMG GLB 35):
    • AMG-enhanced engine and transmission
    • AMG styling
    • Sport suspension
    • Upgraded brakes
    • Available AMG Performance Seats

2020 Mercedes-Benz GLB-Class Specifications

Vehicle Information
Year 2020
Make Mercedes-Benz
Model GLB-Class
Trim -
Style SUV
Type Sport Utility Vehicle
Category Standard Sport Utility Vehicle
Manufacturing Details
Made In Germany
Manufacturing City AGUASCALIENTES
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating 2267.96 kg
Overall Height 165.86 cm
Overall Length 463.3 cm
Overall Width 183.39 cm
Wheelbase Length 282.96 cm
Standard Seating 5
Engine & Performance
Engine 2.0-L I4
Engine Size 2L
Engine Cylinders 4
Transmission 8-Speed Automatic
Transmission Type Automatic
Transmission Speeds 8-Speed
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $38,600 USD
Invoice Price -
Delivery Charges $995 USD

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Analysis

What Problems Does the 2020 Mercedes-Benz GLB-Class Have?

The 2020 Mercedes-Benz GLB-Class has faced a few frequently reported problems. Some owners have experienced issues with the MBUX infotainment system, including glitches, freezing, and connectivity problems with Apple CarPlay and Android Auto. There have also been reports of electrical issues, such as malfunctioning sensors and warning lights. While not widespread, some owners have noted concerns about the reliability of the 8-speed dual-clutch transmission, particularly in the GLB 250.

Recalls for the 2020 GLB-Class have included issues related to the backup camera, where the image may not display correctly, and potential problems with the fuel tank ventilation valve, which could increase the risk of a fire. It's crucial to check the NHTSA website for the latest recall information and ensure any outstanding recalls have been addressed by a Mercedes-Benz dealer.

Long-term reliability remains a concern, as the GLB is a relatively new model. However, some of the common issues reported early on, such as the infotainment glitches, could potentially persist over time. Routine maintenance and addressing any emerging problems promptly will be crucial for ensuring long-term reliability. Owners should pay close attention to the transmission and electrical systems as the vehicle ages.

How long will the 2020 Mercedes-Benz GLB-Class last?

With regular maintenance, the 2020 Mercedes-Benz GLB-Class should realistically provide 150,000-200,000 miles or 10-13 years of service. Proper maintenance, including timely oil changes, transmission fluid services, and addressing any warning signs promptly, is crucial. Potential long-term weaknesses may include continued issues with the infotainment system, electrical components, and the dual-clutch transmission. Rust can also be a factor in regions with harsh winters and road salt. Regular washing and undercarriage cleaning can help mitigate this.

What Technology & Safety Features are Included?

The 2020 Mercedes-Benz GLB-Class boasts a solid array of tech, entertainment, driver-assistance, and safety features. Standard tech includes the MBUX infotainment system with a 7-inch touchscreen, Apple CarPlay, and Android Auto. Optional upgrades include a larger 10.25-inch touchscreen, navigation with augmented reality, and a premium sound system.

Driver-assistance features come standard with Active Brake Assist (automatic emergency braking). Optional features include adaptive cruise control, lane keeping assist, blind-spot monitoring, and parking assist. These advanced driver-assistance systems (ADAS) significantly enhance safety and convenience.

Safety features include multiple airbags, anti-lock brakes, and stability control. Available as options are features like surround-view camera and head-up display.

The IIHS (Insurance Institute for Highway Safety) has awarded the 2020 GLB-Class a Top Safety Pick+, indicating good performance in crash tests. The NHTSA (National Highway Traffic Safety Administration) provides star ratings for crash tests; check their website for the latest ratings on the 2020 GLB-Class. Overall, the GLB-Class offers a comprehensive suite of safety and technology features, making it a competitive choice in its class.

What Colors Options are Available?

Exterior Colors
Digital White Metallic
Cosmos Black Metallic
Denim Blue Metallic
Mountain Grey Metallic
Polar White
Jupiter Red
Night Black
Iridium Silver Metallic
Galaxy Blue Metallic
Rose Gold Metallic
Bahia Brown Metallic
Patagonia Red Metallic
Interior Colors
Macchiato Beige/Black MB-Tex
Black MB-Tex
Neva Grey/Black MB-Tex
Classic Red/Black Leather
Espresso Brown Leather
Black Leather
Saddle Brown Leather
Titanium Grey/Black Leather

2020 Mercedes-Benz GLB-Class Prices and Market Value

The 2020 Mercedes-Benz GLB-Class had a starting MSRP of around $37,000 when new, with higher trims and options pushing the price to $50,000 or more. Current used market prices typically range from the low $20,000s to the high $30,000s, depending on mileage, condition, and trim level. The GLB-Class depreciates at a moderate rate for a luxury SUV. Lower mileage examples, those with desirable option packages (like the Premium or Driver Assistance packages), and vehicles with a clean history and no accidents will command higher resale values. The availability of the third-row seat can also impact resale value.

2020 Mercedes-Benz GLB-Class Cost of Ownership

The 2020 Mercedes-Benz GLB-Class is moderately costly to own. Insurance premiums are higher than average due to its luxury status. Fuel costs are reasonable, particularly with the GLB 250 FWD. Maintenance and repair costs can be expensive, as Mercedes-Benz parts and labor are typically pricier than those of non-luxury brands. Scheduled maintenance, like oil changes and brake services, will contribute significantly to long-term ownership costs. Be prepared for potentially higher repair bills compared to mainstream SUVs.

2020 Mercedes-Benz GLB-Class Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 34.18 liters
City Mileage 4.34 km/l
Highway Mileage 3.23 km/l

2020 Mercedes-Benz GLB-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

2020 Mercedes-Benz GLB-Class Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Powertrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Rust
Original warranty 48 months / 50,000 miles
Estimated remaining Expired

2020 Mercedes-Benz GLB-Class Insurance

Insurance for a 2020 Mercedes-Benz GLB-Class is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.

How Does the 2020 Mercedes-Benz GLB-Class Compare to Other Sport Utility Vehicle?

The 2020 Mercedes-Benz GLB-Class competes with other compact luxury SUVs like the BMW X1, Audi Q3, Volvo XC40, and Lexus NX. In terms of performance, the GLB 250 is comparable to the base engines in the X1 and Q3, while the AMG GLB 35 offers a sportier experience. The GLB's unique selling point is its available third-row seat, which is not offered by its main rivals.

Feature-wise, the GLB offers a competitive suite of technology and driver-assistance systems, though the MBUX system can be polarizing. Reliability is an area where the GLB might lag behind the Lexus NX, which has a stronger track record. The Volvo XC40 offers a stylish interior and a focus on safety.

Price-wise, the GLB is generally in line with its competitors. If reliability is a top priority, the Lexus NX is a strong alternative. For a more engaging driving experience, the BMW X1 is a good choice. If the third-row seat is not a necessity, the Audi Q3 and Volvo XC40 offer compelling alternatives with distinct strengths.

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Final Verdict: Is the 2020 Mercedes-Benz GLB-Class a Good Sport Utility Vehicle?

The 2020 Mercedes-Benz GLB-Class is ideal for buyers seeking a compact luxury SUV with a focus on practicality, particularly those who need the occasional use of a third-row seat. It's worth buying if you prioritize the Mercedes-Benz brand, appreciate its styling, and need the extra passenger or cargo space. A used 2020 GLB-Class can be a good value, especially if it has low mileage and desirable options. Consider the GLB 250 for everyday use, and the AMG GLB 35 if you desire more performance. Be sure to carefully inspect any potential purchase and address any outstanding recalls.

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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.