Mercedes-Benz Gls 450 Reliability
152 NHTSA complaints (2018–2024). Complaint rate: 9.8 per 1,000 vehicles.
Which Years to Buy & Avoid
Years auto-clustered by complaint volume relative to this model's median.
Bottom line: The 2020 Mercedes-Benz Gls 450 had a notable spike in NHTSA complaints. Other years had typical complaint volumes. Most common issue across all years: ELECTRICAL SYSTEM.
Avoid These Years
Average
Better Years
No years stand out as significantly better.
Too New
Need 3+ years on the road for reliable complaint data.
A model's reputation is just the start.
Even within the “good” years, individual cars can have hidden accidents, title issues, or odometer rollbacks. Check the actual VIN before you buy — full history report for $4.99 (vs. Carfax $44.99).
Complaints by Model Year
NHTSA complaint count per model year
Common Mercedes-Benz Gls 450 Problems
Most reported component complaints to NHTSA
| Component | Complaints | Crash % |
|---|---|---|
| ELECTRICAL SYSTEM | 26 | 3.8% |
| ENGINE | 18 | 5.6% |
| UNKNOWN OR OTHER | 16 | 12.5% |
| FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING | 11 | 36.4% |
| SERVICE BRAKES | 11 | 27.3% |
| POWER TRAIN | 10 | 30.0% |
| FUEL/PROPULSION SYSTEM | 8 | 12.5% |
| SUSPENSION | 6 | 0.0% |
| FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL | 5 | 0.0% |
| FORWARD COLLISION AVOIDANCE: WARNINGS | 5 | 20.0% |
Year-by-Year Breakdown
NHTSA complaint count per model year — click any year for full problems & recalls breakdown.
| Year | Generation | Complaints | Crashes | Fires | Details |
|---|---|---|---|---|---|
| 2018 | — | 20 | 1 | 5 | View 2018View→ |
| 2019 | — | 21 | 0 | 1 | View 2019View→ |
| 2020AVOID | — | 55 | 6 | — | View 2020View→ |
| 2022 | — | 24 | 6 | 1 | View 2022View→ |
| 2023 | — | 16 | 0 | — | View 2023View→ |
| 2024TOO NEW | — | 16 | 9 | — | View 2024View→ |
See also: Mercedes-Benz Gls 450accident & safety statistics from our vehicle history database.
Buying a Mercedes-Benz Gls 450?
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