BMW I4 vs Mercedes Benz S Class
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 I4 | Mercedes Benz S Class |
|---|---|---|
| Complaints on file | 136 | 338 |
| Model years covered | 2022–2024 | 1994–2012 |
| Worst model year | 2023 | 2000 |
| Best model year | 2022 | 1994 |
| Crashes reported | 38 | 9 |
| Fires reported | 3 | 9 |
| Injuries reported | 10 | 10 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Electrical System | Electrical System |
| Share of complaints involving harm | 37.5% | 8.3% |
BMW I4 by year
What breaks
Electrical System
24
17.6%
Other & Unspecified
21
15.4%
Driver Assist & Collision Avoidance
19
14.0%
Transmission & Drivetrain
17
12.5%
Brakes
11
8.1%
Acceleration & Cruise Control
7
5.1%
Fuel & Propulsion
7
5.1%
Engine & Cooling
6
4.4%
Mercedes Benz S Class by year
What breaks
Electrical System
118
34.9%
Suspension
67
19.8%
Lights
33
9.8%
Airbags
19
5.6%
Engine & Cooling
15
4.4%
Transmission & Drivetrain
12
3.6%
Tires
11
3.3%
Equipment & Accessories
11
3.3%