When Should a Major Car Maintenance Be Performed?
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Major maintenance is typically performed every three years or 60,000 kilometers, and it is advisable to complete all items listed in the maintenance manual. Major car maintenance contrasts with minor maintenance in terms of interval, mileage, and scope of work. Minor maintenance has shorter intervals, lower mileage requirements, and fewer items. Below are details about major car maintenance: 1. Major car maintenance, also known as third-level maintenance, is carried out after several rounds of secondary maintenance to consolidate and preserve the normal performance of various assemblies and components. A major maintenance should be performed every 50,000–60,000 km, ranking just below a full vehicle overhaul. It focuses on disassembling assemblies, followed by cleaning, inspection, adjustment, and elimination of potential issues. 2. In addition to secondary maintenance tasks, major maintenance involves deeper cleaning and inspection, including disassembling and examining assemblies or components as needed to resolve faults, remove carbon deposits, oil sludge, and residue. It also includes flushing oil passages, descaling, cleaning the oil pan and fuel tank, disassembling and adjusting chassis assemblies, replacing fluids, inspecting and adjusting wheel alignment, and examining the frame and body for rust removal and touch-up painting.
