Mercedes-Benz GLB-Class years to avoid and best years
Newer Mercedes-Benz GLB-Class years have fewer owner complaints per year than the older ones. 2020 has the most complaints per year, at 11 (60 complaints). From 2022 on, complaints per year fall. Among years old enough to compare, the fewest complaints per year are 2021 at 0 (from 2 complaints), 2023 at 3 (from 13 complaints), and 2022 at 3 (from 13 complaints). The Mercedes-Benz GLB-Class 2025 and 2026 model years are too early to compare: none has had 3 full years on the road yet. On the 2020 Mercedes-Benz GLB-Class, 13 of 60 complaints name Structure.
Data as of .
2021
2023
2022
2025–26
Mercedes-Benz GLB-Class reliability by year
Each year is complaints filed in that year’s first 3 years on the road, divided by however many of those years have passed. A model year younger than 3 years is too early to compare, so it is left out of the years named as having the fewest or the most complaints. Recalls are a separate count. The numbers are for the US-market Mercedes-Benz GLB-Class. How we count.
By model year
| Year | Per year on the road | Complaints | Recalls | Most-filed complaint | Avg. combined MPG |
|---|---|---|---|---|---|
| 2026 Too early | 0 | 0 | 0 | — | — |
| 2025 Too early | 0 | 0 | 0 | — | — |
| 2024 | 0 | 0 | 0 | — | — |
| 2023 → Fewest | 3 | 13 | 0 | Engine | — |
| 2022 → Fewest | 3 | 13 | 0 | Forward collision avoidance | — |
| 2021 Fewest | 0 | 2 | 0 | Electrical system, Engine | — |
| 2020 → Most | 11 | 60 | 0 | Structure | — |
Years with a → link have a full model-year page.
What owners file about
Generations
- Body styles
- SUV
- Oil
- 0W-20, 0W-30, or 0W-40 (all temps); 5W-30 or 5W-40 above -25°C (GLB250 2.0L turbo) · 5.8 qt capacity
- Tire size
- 235/55R18, 235/50R19, 235/45R20 (trim-dependent)
Known issues for this generation
Recall 21V-860 covers certain 2021 GLB 250 and AMG GLB 35 vehicles: the driver-side window air bag may not have been mounted correctly to the lower A-pillar area. Dealers inspect the mounting and repair it as necessary. Recall 21V-232 covers certain 2020-2021 GLB250 vehicles: front fender wheel-arch covers may not have been installed correctly and can detach; dealers check and correct the installation. Recall 21V-231 covers certain 2020-2021 GLB250 and 2021 GLB35 AMG vehicles: tailgate side spoilers may not have been installed correctly and can detach; dealers inspect and replace the spoilers as necessary.
Frequently asked questions
Which Mercedes-Benz GLB-Class years have fewer owner complaints?
Among years old enough to compare, the fewest complaints per year are 2021 at 0 (from 2 complaints), 2023 at 3 (from 13 complaints), and 2022 at 3 (from 13 complaints).
Which Mercedes-Benz GLB-Class year has the most owner complaints?
2020 has the most complaints per year, at 11 (60 complaints). On the 2020 Mercedes-Benz GLB-Class, 13 of 60 complaints name Structure.
How do Mercedes-Benz GLB-Class owner complaints compare by year?
Newer Mercedes-Benz GLB-Class years have fewer owner complaints per year than the older ones. From 2022 on, complaints per year fall.
Which Mercedes-Benz GLB-Class years are too early to compare?
The Mercedes-Benz GLB-Class 2025 and 2026 model years are too early to compare: none has had 3 full years on the road yet.
What oil does a Mercedes-Benz GLB 250 take?
0W-20, 0W-30, or 0W-40 at all temps; 5W-30 or 5W-40 above -25°C for the GLB250 2.0L turbo — confirm the engine sticker.
What does recall 21V-860 cover on the GLB?
Certain 2021 GLB 250 and AMG GLB 35 vehicles: the driver-side window air bag may not have been mounted correctly to the lower A-pillar area. Dealers inspect the mounting and repair it as necessary.
When did the US GLB start?
Model year 2020 (X247 generation on this site).