Auto Guide
2024 Mercedes-Benz GLB
Used

Review and specifications

2024 Mercedes-Benz GLB

The new for 2020 GLB compact SUV slots between Mercedes' GLA and the GLC. The GLB is boxier than those SUVs, with a square, upright stance. Despite its compact dimensions, the GLB offers an optional, albeit tight, third-row seat. Fortunately, the 2.0-liter turbo four-cylinder powertrain is more responsive than it is in its A-Class and CLA platform mates. It posts a respectable 26 mpg overall in our tests. The GLB feels light on its feet and responsive in corners. The ride is firm, but steady and controlled. The cabin is well finished and quiet. Although the infotainment system is very capable and dazzling in appearance, we found it cumbersome to use. The GLB comes with either front- or all-wheel drive. Forward collision warning and automatic emergency braking with pedestrian detection are standard. For 2021, blind spot warning is standard.

Market value
$31,550
Fuel
Conventional
Transmission
Automatic
Seats
7
View listings Find dealers
Model year 2024
Owner rating Not rated
Reliability Not rated
Data updated December 4, 2025

At a glance

Model data

Overview

Powertrain
Conventional
Body style
4-door SUV
Drive type
AWD
Transmission
Sequential, 8-speed
Category
Luxury compact SUVs
Generation began
2020

Pricing

Current retail median
$31,550
Retail value range
$29,575 - $41,225
Original MSRP range
$44,650 - $59,050
Trade-in range
$27,080 - $38,630

Ratings

Road test score
84/100

Fuel economy

EPA city
23 MPG
EPA highway
31 MPG
EPA combined
26 MPG
Tested city
17 MPG
Tested highway
38 MPG
Tested overall
26 MPG
Annual fuel cost
$1,865
Cruising range
415 miles

Road tests

0-30 mph
2.7 sec
0-60 mph
6.8 sec
60-0 mph braking
125 ft
Avoidance speed
54.5 mph
Test status
Test Completed

Dimensions

Length
182 in
Width
72 in
Height
65 in
Wheelbase
111 in
Weight
3,785 lb
Maximum load
935 lb
Towing capacity
0 lb

Interior

Seating
7 people
Front head room
5 in
Front leg room
42.5 in
Rear head room
3.5 in
Rear leg room
30 in
Cargo volume
28.5 cu ft

Environmental impact

Air pollution score
5/10
Greenhouse gas score
5/10
SmartWay
No

Brand context

About Mercedes-Benz

Most Mercedes-Benzes give their owners industry-leading comfort and technology. The cost of that experience is an expensive base price with expensive options and below-average reliability. The brand produces a wide variety of vehicles for the U.S., including coupes, station wagons, sedans, convertibles, and even two-seat sports cars. Its two- and three-row SUVs that we’ve tested have powerful engines and interiors that are roomy and quiet. Generally, Mercedes-Benz fit and finish, inside and out, is exceptional and helps justify prices. Mercedes-Benz’s EVs range from compact to large three-row SUVs. Across the lineup, controls for the complex climate and infotainment systems aren’t as intuitive as we find in other luxury vehicles. Like most European luxury brands, used Mercedes-Benzes can have expensive out-of-warranty repairs, although Consumer Reports has found used models with above-average reliability.

Vehicle ID: 26986 First published: November 29, 2023 Updated: December 4, 2025

Values may vary by trim, options, location, and market conditions.

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