2017 Audi A3 Cabriolet vs 2017 Mercedes-Benz C 300
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 7, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2017 Audi A3 Cabriolet | 2017 Mercedes-Benz C 300 |
|---|---|---|
| NHTSA complaints | 25 | 215 |
| Recall campaigns | 3 | 15 |
| Service bulletins (TSBs) | 475 | 160 |
| Investigations | 1 | 1 |
| Crash reports | 0 | 10 |
| Fire reports | 0 | 3 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 28 | 26–28 |
| Median reported incident mileage | — | 34,000 mi |
Reported problems side by side
| Component | Audi A3 Cabriolet | Mercedes-Benz C 300 |
|---|---|---|
| Engine | 5 | 77 |
| Electrical System | 1 | 31 |
| Fuel/propulsion System | 1 | 30 |
| Air Bags | 13 | 15 |
| Structure | 0 | 24 |
| Seat Belts | 2 | 21 |
| Power Train | 3 | 12 |
| Steering | 0 | 13 |
Symptoms owners describe
| Airbag warning light | 6 | 0 |
| Check engine light | 0 | 31 |
| Vibration / shaking | 0 | 9 |
| Stalling | 0 | 8 |
2017 Audi A3 Cabriolet
2017 Mercedes-Benz C 300
Compare all Audi A3 Cabriolet vs Mercedes-Benz C 300 years →
Method. Complaints are unique NHTSA reports. A vehicle that sold more units will naturally accumulate more complaints — use shares and read the underlying reports before drawing conclusions.