GLS-Class Reliability by Year
Full-Size SUVOf the 6 Mercedes-Benz GLS-Class model years with a Reliability score, the 2020 scores lowest, 7.8 from 12 owner complaints, and the 2018 scores highest, 9.2. A score of 7.0 means as many owner complaints as similar vehicles of the same age.
- 2 generations
- 9 engines
- 219 total complaints
Reliability Score by Model Year
| Model year | Generation | Reliability score | Owner complaints |
|---|---|---|---|
| 2017 | 2017-2019 | 9.1/10 | 14 |
| 2018 | 2017-2019 | 9.2/10 | 5 |
| 2019 | 2017-2019 | 8.9/10 | 7 |
| 2020 | 2020-2025 | 7.8/10 | 12 |
| 2021 | 2020-2025 | 8.0/10 | 6 |
| 2022* | 2020-2025 | 8.1/10 | 5 |
| 2023 | 2020-2025 | Not rated | 5 |
| 2024 | 2020-2025 | Not rated | 2 |
| 2025 | 2020-2025 | Not rated | 2 |
* Under five years on the road; the score can still move.
Generation Timeline
Inspecting a used Mercedes-Benz GLS-Class? Open the inspection checklist and pick the model year.
Frequently Asked Questions
What Mercedes-Benz GLS-Class years should I avoid?
Every scored Mercedes-Benz GLS-Class year is at 7.0 or above; the lowest is the 2020 Mercedes-Benz GLS-Class (7.8, 12 owner complaints). The Reliability score runs from 1.0 to 10.0, and 7.0 means as many owner complaints as similar vehicles of the same age.
What Mercedes-Benz GLS-Class years have the most owner complaints?
The 2017 Mercedes-Benz GLS-Class drew the most NHTSA owner complaints, 14, followed by the 2020 (12) and the 2019 (7). Raw counts grow with the number of cars sold and the years they have been on the road; the Reliability score adjusts for both.
What is the most reliable Mercedes-Benz GLS-Class year?
The 2018 Mercedes-Benz GLS-Class scores highest, 9.2, with 5 owner complaints.