This manual covers the Astra G generation, produced from 1998 to 2000. The Astra G represented a significant evolution for the model, known for its robust engineering and value, succeeding the popular Kadett line. This generation offered various body styles, including hatchback, saloon, estate, and coupe variants, and was equipped with a range of petrol and diesel engines, such as the 1.2L, 1.4L, 1.6L ECOTEC, 1.8L, and 2.0L engines, alongside diesel options. The vehicle featured a blend of reliable mechanicals and early electronic systems, with safety provisions including front airbags, pre-tensioning seatbelts, and optional side airbags, along with Anti-lock Braking System (ABS) and, on some higher-spec models, Electronic Stability Program (ESP). This comprehensive Service Repair Workshop Manual provides detailed information for the maintenance, diagnostics, and repair of the Astra G. It covers all major systems, including Engine Mechanical and Electrical, Fuel System, Emission Control, Clutch, Manual and Automatic Transaxles, Driveshaft and Axle, Suspension, Steering, Brake System, Restraint System, Body (Interior and Exterior), Body Electrical System, and HVAC System. The manual includes step-by-step instructions, diagnostic procedures, troubleshooting guides, technical specifications, wiring schematics, and illustrations, making it an essential resource for owners, mechanics, and technicians aiming to maintain and repair the vehicle effectively.