This manual covers the Jaguar S-Type Mk10, 420, and 420G models produced between 1961 and 1970. These luxury saloons, manufactured in Coventry, England, were renowned for their spacious interiors, powerful straight-six XK engines (3.8L and 4.2L), refined ride quality, and elegant styling, competing with other high-end vehicles of their era. Key features included independent suspension, all-around disc brakes, and luxurious appointments, making them symbols of British automotive engineering and craftsmanship.

This comprehensive workshop manual provides detailed guidance for the maintenance, repair, and restoration of these classic Jaguars. It encompasses all major systems, including engine diagnostics and overhaul for the 3.8L and 4.2L XK engines, fuel, cooling, clutch, manual and automatic transmissions, propeller shaft, rear axle, steering, exhaust, suspension, and brake systems. Additionally, it covers bodywork, electrical systems, instrumentation, heating and air conditioning, and includes special tools and parts information, serving as an essential resource for owners and technicians.