Mercedes-Benz GLS450
2017–2021 only
2017–2021 Mercedes-Benz GLS450 models have 96 classified complaints on record for these years specifically, plus 19 recalls. The most common issue in this range is Body control and other modules, typically surfacing around 41,097 miles.
Computed directly from stored federal records for 2017–2021 model years only — not blended with the rest of this vehicle's production run. See the full Mercedes-Benz GLS450 report for every year combined.
What breaks, and when — 2017–2021 only
Median onset: 41,097 miles.
Tends to show up later than this model's other issues.
Median onset: 13,000 miles.
Tends to show up later than this model's other issues. · Typical repair: $250–$1,030 nationally.
Median onset: 7,000 miles.
Tends to show up earlier than this model's other issues.
Median onset: 3,000 miles.
Tends to show up earlier than this model's other issues.
Median onset: 9,450 miles.
Median onset: 15,000 miles. 33.3% of these reported an injury, a death, or a crash with fire.
Tends to show up later than this model's other issues.
Onset mileage not consistently reported.
Median onset: 5,125 miles.
Tends to show up earlier than this model's other issues. · Typical repair: $750–$2,230 nationally.
From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.
Cost estimator: what will this one cost you?
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Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2017–2021 model years. See the full Mercedes-Benz GLS450 report for every year and full specs/safety data.