Mercedes-Benz GLS 450 — YEARS TO AVOID
Data updated 2026-08-02. Complaints are unverified owner reports filed with NHTSA.
COMPLAINT HISTORY
View as data table
| Year | Complaints |
|---|---|
| 2018 | 14 |
| 2019 | 18 |
| 2020 | 35 |
| 2022 | 14 |
| 2023 | 7 |
| 2024 | 14 |
EVERY YEAR, RANKED
| Year | Ranking | Complaints | Why |
|---|---|---|---|
| 2024 | Not enough data | 14 | Only 14 complaints on file — too few for a fair verdict. |
| 2023 | Not enough data | 7 | Only 7 complaints on file — too few for a fair verdict. |
| 2022 | Not enough data | 14 | Only 14 complaints on file — too few for a fair verdict. |
| 2020 | Not enough data | 35 | Not enough comparison years on file yet for a fair verdict. |
| 2019 | Not enough data | 18 | Only 18 complaints on file — too few for a fair verdict. |
| 2018 | Not enough data | 14 | Only 14 complaints on file — too few for a fair verdict. |