2023 Mercedes-Benz GLB-Class
The Verdict
Worst problem area
Engine
Engine leads by volume: 4 of 12 complaints (33%) mention it.
Complaints filed fell from 13 in 2022 to 12 in 2023.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2021 | 2022 | 2023 | 2024 | 2025 | vs. 2023 Midsize Station Wagons |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 3,000–3,350 | 2,850–3,500 | 2,850–3,350 | 2,750–3,350 | 2,750–3,350 | |
| Combined MPG | 23–26 | 22–27 | 23–27 | 23–28 | 23–28 | |
| City / Highway MPG | 21–23 / 26–31 | 20–24 / 27–32 | 21–24 / 27–32 | 21–25 / 26–33 | 21–25 / 26–33 | |
| CO₂ tailpipe (g/mi) | 337–381 | 330–396 | 330–382 | 319–390 | 311–390 | |
| Complaints filed | 34 | 13 | 12 | 5 | 1 | |
| Recalls issued | 12 | 1 | 1 | 2 | 2 | |
| Crash-involved complaints | 0 | 2 | 0 | 0 | 1 | |
| Fire-involved complaints | 0 | 0 | 0 | 0 | 0 | |
| Injuries reported | 0 | 2 | 0 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 1 | 1 | 1 | 1 | 1 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2023 Mercedes-Benz GLB-Class have?
1 NHTSA recall campaign as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2023 Mercedes-Benz GLB-Class?
Engine: 4 of 12 NHTSA complaints (33%) mention it.
What gas mileage does the 2023 Mercedes-Benz GLB-Class get?
EPA rates it 23–27 MPG combined.
How much does it cost to fuel a 2023 Mercedes-Benz GLB-Class?
EPA estimates $2,850–$3,350 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (3)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (AM8) | 4 | 2.0L | All-Wheel Drive | Premium | Small Sport Utility Vehicle 4WD | 22 mpg | 30 mpg | 25 mpg | $3,100 | 355 g/mi |
| Configuration 2 | Automatic (AM8) | 4 | 2.0L | Front-Wheel Drive | Premium | Special Purpose Vehicle 2WD | 24 mpg (high) | 32 mpg (high) | 27 mpg (high) | $2,850 (low) | 330 g/mi (low) |
| Configuration 3 | Automatic (AM8) | 4 | 2.0L | All-Wheel Drive | Premium | Midsize Station Wagons | 21 mpg (low) | 27 mpg (low) | 23 mpg (low) | $3,350 (high) | 382 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 4 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 3 | 0 | 0 | 0 | 0 |
| Fuel System | 1 | 0 | 0 | 0 | 0 |
| Electrical | 0 | 0 | 0 | 0 | 0 |
| Brakes | 2 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 0 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 0 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 2 | 0 | 0 | 0 | 0 |
| Other | 3 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (1)
LATCHES/LOCKS/LINKAGES:DOORS:LOCK · Campaign 26V481000 · Jul 27, 2026
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
Consequence: A vehicle rollaway increases the risk of a crash or injury.
Remedy: Dealers will replace the driver's door lock, free of charge. Owner notification letters are expected to be mailed September 18, 2026. Owners may contact MBUSA customer service at 1-800-367-6372. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning July 31, 2026.