repaired · 2026 Q3
Doors: lock
NewRisk. A vehicle rollaway increases the risk of a crash or injury.
2021 Mercedes-Benz GLB 250Problems, recalls & complaints
NHTSA has logged 30 owner complaints about the 2021 Mercedes-Benz GLB 250, most often about the engine. It is covered by 11 safety recalls, and for recall 21V-354 the manufacturer reports only 81% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 4, 2026. Updated daily.
Complaints by system
Where the 2021 Mercedes-Benz GLB 250 has problems
30 complaints grouped by the system owners reported.
7Engine
4Electrical system
4Suspension
3Structure
3Power train
2Wheels
2Back over prevention
2Fuel/propulsion system
2Steering
77 other systems
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 7 | 0 |
| Electrical system | 4 | 0 |
| Suspension | 4 | 0 |
| Structure | 3 | 0 |
| Power train | 3 | 0 |
| Wheels | 2 | 0 |
| Back over prevention | 2 | 0 |
| Fuel/propulsion system | 2 | 0 |
| Steering | 2 | 0 |
| 7 other systems | 7 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
11 recalls
2021 Mercedes-Benz GLB 250 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2024 Q3
Electronic stability control (ESC): control module
Risk. Disabled anti-lock brakes and electronic stability control can increase the risk of a crash or injury.
repaired · 2026 Q2
Communication: auto crash notification
Risk. A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency…
repaired · 2024 Q1
Exterior lighting: headlights
Risk. Improperly leveled headlights may project a glare, which can impact other drivers and increase the risk of a crash.
Show 7 more recalls
repaired · 2024 Q2
Back over prevention: display function
Risk. An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
repaired · 2023 Q4
Air bags: frontal
Risk. An incorrect air bag module may not properly restrain an occupant during a crash.
repaired · 2023 Q3
Air bags: side/window
Risk. The driver-side window air bag may not function properly during a crash, increasing the risk of injury.
repaired · 2023 Q4
Sensing system: camera
Risk. A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
repaired · 2023 Q1
Structure: body
Risk. Detached wheel arch covers can create a road hazard, increasing the risk of a crash or injury.
repaired · 2023 Q2
Body: tailgate
Risk. Detached spoilers can create a road hazard, increasing the risk of a crash or injury.
repaired · 2023 Q4
Communication: auto crash notification
Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Best & worst years
2021 vs. every other GLB 250 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the GLB 250 median. How we score
'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What GLB 250 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
When my car sits in the rain for long periods of time, while driving, it will automatically switch into neutral and give me a "transmission malfunction stop" & "service required do not shift gears visit dealer" sign on the dash. This has happened at least 7 times in 2 years since March 2024. The…
Engine locked up while driving out of state on the interstate. Vehicle lost all power and engine stopped functioning. Managed to pull over and stop the vehicle on the side of the interstate. Had truck towed to repair shop where they diagnosed connecting rod/crankshaft bearing failure, as well as…
Engine showed signs of loss of power and excess noise. It was taken to dealership via MB roadside assistance. At the dealership, they diagnosed it with engine catastrophic failure due to metal parts found in the oil filter. At no time was the engine disassembled to ensure known defects and still…
Own a 2021 GLB 250?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.