AVOIR rates the 2003 Mercedes-Benz C320 4matic's reliability 77/100 — good — from NHTSA recall counts, complaint density, and multi-year defect trends. Its overall AVOIR ownership score is 66/100 (Average).
AVOIR scores the 2003 Mercedes-Benz C320 4matic's longevity 75/100 (good), estimated from high-mileage survival data and resale-panel evidence of how far these vehicles actually run.
AVOIR scores the 2003 Mercedes-Benz C320 4matic on maintenance 69/100 and depreciation 51/100 — higher is better (lower real cost) — plus fuel, insurance and resale in the full breakdown above.
See all 2003 Mercedes-Benz C-Class trims & reliability scores.
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.