Mercedes-Benz GLS-450 engine problems by year
9 NHTSA owner complaints name the engine across 1 GLS-450 model years. The most reported year is 2020 with 9 reports.
| Year | Engine reports | Share | Median mileage | |
|---|---|---|---|---|
| 2020 GLS-450 | 9 | 26% | — |
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.