The Jaguar XJ6, specifically the XJ40 Series produced from 1986 to 1994, represents a significant chapter in Jaguar's history as a full-size luxury sedan. Known for its elegant styling and refined ride quality, the XJ6 offered powerful inline-six engines, including 3.2, 3.6, and 4.0-liter variants, all featuring electronic fuel injection. This generation marked a modernization of Jaguar's design while retaining its classic character, competing with established luxury marques like Mercedes-Benz and BMW. The XJ6 was engineered for luxury car buyers prioritizing comfort, performance, and distinctive British automotive design.

This comprehensive service and repair workshop manual provides an A-Z guide for maintaining and repairing all XJ6 3.2, 3.6, and 4.0 models from the 1986-1994 production years. It covers all major systems, including the engine, transmission, drivetrain, suspension, brakes, steering, electrical systems, bodywork, and climate control. Detailed procedures for routine maintenance, diagnostics, component repair, and major overhauls are included, offering professional-level technical depth suitable for technicians and experienced owners. The manual also details common issues, fluid specifications, and technical data essential for the proper upkeep of this iconic vehicle.