The 1990 Jaguar XJ6 represents a pinnacle of classic British luxury, embodying a design philosophy focused on ride comfort and refined performance. As a luxury sedan, it competed with esteemed marques such as BMW and Mercedes-Benz, offering a distinct blend of elegant styling and capable engineering. This model, part of the XJ40 generation produced from 1986 to 1994, is equipped with a 4.0L AJ6 Straight-6 naturally aspirated engine, delivering approximately 221 horsepower and 277 lb-ft of torque, paired with a 4-speed automatic transmission. Its robust construction and classic British heritage contribute to its enduring appeal for enthusiasts and collectors.

This comprehensive workshop service repair manual, written in English, provides detailed guidance for the maintenance, diagnosis, and repair of the 1990 Jaguar XJ6, specifically covering the 4.0L AJ6 engine. With an estimated 1200+ pages, it delves into all major vehicle systems, including powertrain, chassis, electrical, and body components. The manual details scheduled maintenance, fluid specifications, and addresses common issues, offering troubleshooting flowcharts, electrical schematics, and step-by-step repair procedures for everything from basic servicing to full engine and transmission overhauls, ensuring optimal performance and longevity of your vehicle.