AVOIR rates the 2012 Mercedes-Benz ML550 4matic's reliability 63/100 — average — from NHTSA recall counts, complaint density, and multi-year defect trends. Its overall AVOIR ownership score is 58/100 (Poor).
AVOIR scores the 2012 Mercedes-Benz ML550 4matic's longevity 64/100 (average), estimated from high-mileage survival data and resale-panel evidence of how far these vehicles actually run.
AVOIR scores the 2012 Mercedes-Benz ML550 4matic on maintenance 48/100 and depreciation 59/100 — higher is better (lower real cost) — plus fuel, insurance and resale in the full breakdown above.
AVOIR scores every vehicle across 7 ownership factors using EPA fuel-economy data, NHTSA safety & complaints, IIHS ratings, and a proprietary used-market resale panel.