BMW I3 REX vs Mercedes Benz GLS 450
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 I3 REX | Mercedes Benz GLS 450 |
|---|---|---|
| Complaints on file | 43 | 107 |
| Model years covered | 2014–2014 | 2018–2020 |
| Worst model year | — | 2020 |
| Best model year | — | 2019 |
| Crashes reported | 3 | 10 |
| Fires reported | 2 | 9 |
| Injuries reported | 0 | 3 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Transmission & Drivetrain | Electrical System |
| Share of complaints involving harm | 11.6% | 20.6% |
BMW I3 REX by year
14
What breaks
Transmission & Drivetrain
11
25.6%
Engine & Cooling
7
16.3%
Electrical System
6
14.0%
Fuel & Propulsion
6
14.0%
Steering
3
7.0%
Acceleration & Cruise Control
3
7.0%
Seat Belts
2
4.7%
Stability & Traction Control
2
4.7%
Mercedes Benz GLS 450 by year
What breaks
Electrical System
22
20.6%
Engine & Cooling
16
15.0%
Driver Assist & Collision Avoidance
14
13.1%
Other & Unspecified
10
9.3%
Fuel & Propulsion
7
6.5%
Transmission & Drivetrain
6
5.6%
Brakes
6
5.6%
Body & Structure
6
5.6%