BMW M4 vs Mercedes Benz GLB 250
Both cars' complete complaint records, side by side.
Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.
| Measure | BMW M4 | Mercedes Benz GLB 250 |
|---|---|---|
| Complaints on file | 65 | 162 |
| Model years covered | 2015–2024 | 2020–2026 |
| Worst model year | — | 2020 |
| Best model year | — | 2023 |
| Crashes reported | 0 | 11 |
| Fires reported | 7 | 0 |
| Injuries reported | 3 | 5 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Engine & Cooling | Other & Unspecified |
| Share of complaints involving harm | 15.4% | 9.9% |
BMW M4 by year
What breaks
Engine & Cooling
16
24.6%
Transmission & Drivetrain
14
21.5%
Fuel & Propulsion
8
12.3%
Suspension
7
10.8%
Electrical System
5
7.7%
Brakes
3
4.6%
Other & Unspecified
3
4.6%
Steering
2
3.1%
Mercedes Benz GLB 250 by year
What breaks
Other & Unspecified
28
17.3%
Engine & Cooling
19
11.7%
Electrical System
18
11.1%
Driver Assist & Collision Avoidance
18
11.1%
Body & Structure
17
10.5%
Suspension
10
6.2%
Fuel & Propulsion
9
5.6%
Transmission & Drivetrain
7
4.3%