Mercedes-Benz GLS450 engine problems by year
11 NHTSA owner complaints name the engine across 2 GLS450 model years. The most reported year is 2017 with 8 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2021 GLS450 | 3 | 10% | — | |
| 2017 GLS450 | 8 | 23% | — |
Share is the fraction of that year’s complaints naming the engine. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.