Reliability & cost of ownership
Mercedes Benz GLS 450 4Matic Reliability & Common Problems
How reliable is the Mercedes Benz GLS 450 4Matic? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars where on file — then open the year you're shopping for its AI reliability outlook where NHTSA has enough data.
Mercedes Benz GLS 450 4Matic problems by model year
18 recall entries across 4 model years and 3 owner complaints across 5 model years on file, sourced from the federal NHTSA database. We couldn't confirm the NHTSA recall list for the remaining model year — check the VIN at nhtsa.gov/recalls.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2027 GLS 450 4Matic | Not confirmed | 1 | No overall rating on file | Recalls & complaints → |
| 2026 GLS 450 4Matic | 2 | 2 | No overall rating on file | Recalls & complaints → |
| 2025 GLS 450 4Matic | 1 | None on file at try.vin | No overall rating on file | Recalls & complaints → |
| 2023 GLS 450 4Matic | 5 | None on file at try.vin | No overall rating on file | AI reliability outlook → |
| 2022 GLS 450 4Matic | 10 | None on file at try.vin | No overall rating on file | AI reliability outlook → |
Most-complained-about components
Owner complaints filed with NHTSA against the Mercedes Benz GLS 450 4Matic, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- engine2 complaints
- unknown or other1 complaint
- equipment1 complaint