Chevrolet Impala vs Mercedes-Benz S550
Owner complaints, worst years and recall history side by side, from official NHTSA data. Last verified Aug 8, 2026. Raw complaint counts are not adjusted for sales volume.
Chevrolet Impala
- Total complaints
- 10,363
- Avg per model year
- 385
- Recall campaigns (all years)
- 31
- Most complained year
- 2004 (1,072)
Top problems: Electrical System, Engine, Steering
Mercedes-Benz S550
- Total complaints
- 138
- Avg per model year
- 20
- Recall campaigns (all years)
- 15
- Most complained year
- 2007 (54)
Top problems: Electrical System, Power Train, Unknown OR Other
Complaints by model year
| Year | Chevrolet Impala | Mercedes-Benz S550 | ||
|---|---|---|---|---|
| 2017 | 116 | 16 | ||
| 2016 | 110 | 15 | ||
| 2015 | 298 | 41 | ||
| 2014 | 631 | 24 | ||
| 2013 | 270 | 7 | ||
| 2012 | 258 | 5 | ||
| 2011 | 505 | 8 | ||
| 2010 | 441 | 15 | ||
| 2008 | 810 | 19 | ||
| 2007 | 627 | 54 |
Method. Complaints are unique NHTSA reports per model year. A model that sold more units will naturally accumulate more complaints — compare the shape across years, not just the raw totals, and read the year pages for what actually fails.