This manual covers the Jaguar XJ Series III, produced from 1979 through 1992. The XJ Series III is a luxury saloon renowned for its opulent interior, sophisticated ride quality, and powerful engine options, including the 5.3L V12 and the 3.6L V6. Competing with established luxury marques, the XJ Series III offered a long-wheelbase option and represented a significant evolution of Jaguar's classic XJ platform, solidifying the brand's legacy in the luxury grand tourer segment.

This comprehensive workshop service and repair manual provides detailed guidance for maintaining and repairing your Jaguar XJ Series III. It covers a wide range of systems, including engine diagnostics and overhaul for both V12 and V6 variants, transmission service, brake system repairs, suspension and steering, the electrical system, body and chassis work, and heating and air conditioning. The manual includes routine maintenance procedures, troubleshooting guides, and in-depth repair instructions, making it an essential resource for owners and technicians.