Owners generally characterize upkeep as manageable and the engine as tough, citing a roughly 10k-mile service interval, coils and plugs around 60k, and periodic transmission and differential fluid services. Frequent oil changes (many owners run 3,000-mile intervals with oil analysis) are a common preventive habit given the head-bolt concern.
Maintenance schedule and running costs
Mercedes-Benz C63 AMG (W204) · ownership