Kia Sorento vs Mercedes-Benz GLK350
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.
Kia Sorento
- Total complaints
- 10,061
- Avg per model year
- 420
- Recall campaigns (all years)
- 40
- Most complained year
- 2011 (1,516)
Top problems: Engine, Electrical System, Unknown OR Other
Mercedes-Benz GLK350
- Total complaints
- 895
- Avg per model year
- 129
- Recall campaigns (all years)
- 12
- Most complained year
- 2010 (241)
Top problems: Air Bags, Fuel/propulsion System, Electrical System
Complaints by model year
| Year | Kia Sorento | Mercedes-Benz GLK350 | ||
|---|---|---|---|---|
| 2015 | 746 | 114 | ||
| 2014 | 981 | 103 | ||
| 2013 | 979 | 137 | ||
| 2012 | 876 | 167 | ||
| 2011 | 1,516 | 133 | ||
| 2010 | 3 | 241 | ||
| 2007 | 154 | 5 |
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.