MULTI-YEAR DEFECT AUDIT (2014–2025)12 Model Years Audited
Mercedes-Benz GLS Common Problems & Year-by-Year Reliability Guide
Comprehensive historical defect intelligence across 18 total NHTSA owner complaints and 0 federal recall campaigns for the Mercedes-Benz GLS.
Best GLS Years to Buy (Highest Reliability)
Years with Highest Defect Reports (Inspect Closely)
Year-over-Year Matrix
All GLS Model Years (2014–2025)
| Model Year | Reliability Index | NHTSA Complaints | Recalls | Safety Severity | Detailed Report |
|---|---|---|---|---|---|
| 2025 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2025 |
| 2024 GLS | 6.7 / 10 | 18(4/10k) | 0 | Critical Risk | Audit 2024 |
| 2023 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2023 |
| 2022 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2022 |
| 2021 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2021 |
| 2020 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2020 |
| 2019 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2019 |
| 2018 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2018 |
| 2017 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2017 |
| 2016 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2016 |
| 2015 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2015 |
| 2014 GLS | 9.5 / 10 | 00 | 0 | Low Risk | Audit 2014 |