2015 Audi A8 vs 2015 Kia Optima
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Sep 22, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2015 Audi A8 | 2015 Kia Optima |
|---|---|---|
| NHTSA complaints | 31 | 1,007 |
| Recall campaigns | 5 | 4 |
| Service bulletins (TSBs) | 1,099 | 200 |
| Investigations | 2 | 4 |
| Crash reports | 1 | 31 |
| Fire reports | 0 | 74 |
| NCAP overall rating | — | 5/5 |
| EPA MPG (combined) | 22 | 24–37 |
| Median reported incident mileage | — | 80,318 mi |
Reported problems side by side
| Component | Audi A8 | Kia Optima |
|---|---|---|
| Engine | 17 | 621 |
| Electrical System | 3 | 135 |
| Structure | 1 | 76 |
| Steering | 1 | 69 |
| Service Brakes | 4 | 49 |
| Power Train | 2 | 49 |
| Fuel/propulsion System | 1 | 46 |
| Service Brakes, Hydraulic | 0 | 40 |
Symptoms owners describe
| Stalling | 8 | 155 |
| Loss of power | 5 | 60 |
| Check engine light | 0 | 102 |
| Clunking / rattling | 0 | 70 |
| Oil consumption | 0 | 32 |
| Rust / corrosion | 0 | 27 |
| Won’t start | 0 | 25 |
| Vibration / shaking | 0 | 22 |
2015 Audi A8
2015 Kia Optima
Compare all Audi A8 vs Kia Optima 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.