Mercedes Benz CLS550 vs Mazda RX-7
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 | Mercedes Benz CLS550 | Mazda RX-7 |
|---|---|---|
| Complaints on file | 82 | 205 |
| Model years covered | 2006–2009 | 1987–1995 |
| Worst model year | 2007 | — |
| Best model year | 2006 | — |
| Crashes reported | 1 | 6 |
| Fires reported | 1 | 50 |
| Injuries reported | 4 | 5 |
| Deaths reported | 0 | 0 |
| Most complained-about part | Fuel & Propulsion | Engine & Cooling |
| Share of complaints involving harm | 7.3% | 29.8% |
Mercedes Benz CLS550 by year
What breaks
Fuel & Propulsion
34
41.5%
Engine & Cooling
6
7.3%
Transmission & Drivetrain
6
7.3%
Electrical System
6
7.3%
Suspension
6
7.3%
Airbags
5
6.1%
Brakes
4
4.9%
Other & Unspecified
4
4.9%
Mazda RX-7 by year
What breaks
Engine & Cooling
60
29.3%
Fuel & Propulsion
36
17.6%
Seat Belts
33
16.1%
Electrical System
26
12.7%
Body & Structure
7
3.4%
Brakes
6
2.9%
Tires
6
2.9%
Other & Unspecified
5
2.4%