2008 Chevrolet Impala vs 2008 Mercedes-Benz S550
Complaints, recalls, TSBs, investigations and safety ratings side by side, from official federal data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
| Metric | 2008 Chevrolet Impala | 2008 Mercedes-Benz S550 |
|---|---|---|
| NHTSA complaints | 810 | 19 |
| Recall campaigns | 2 | 0 |
| Service bulletins (TSBs) | 1,002 | 81 |
| Investigations | 1 | 0 |
| Crash reports | 51 | 1 |
| Fire reports | 10 | 0 |
| NCAP overall rating | — | — |
| EPA MPG (combined) | 19–22 | 16 |
| Median reported incident mileage | 71,000 mi | — |
Reported problems side by side
| Component | Chevrolet Impala | Mercedes-Benz S550 |
|---|---|---|
| Electrical System | 221 | 4 |
| Engine | 134 | 2 |
| Suspension | 117 | 2 |
| Steering | 94 | 0 |
| Vehicle Speed Control | 92 | 1 |
| Power Train | 91 | 2 |
| Electronic Stability Control (esc) | 58 | 0 |
| Air Bags | 50 | 1 |
Symptoms owners describe
| Stalling | 60 | 0 |
| Check engine light | 50 | 0 |
| Loss of power | 32 | 0 |
| Vibration / shaking | 20 | 0 |
| Hesitation / surging | 17 | 0 |
| Electrical failures | 15 | 0 |
| Clunking / rattling | 14 | 0 |
| Won’t start | 8 | 0 |
2008 Chevrolet Impala
2008 Mercedes-Benz S550
Compare all Chevrolet Impala vs Mercedes-Benz S550 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.