Autodata 3.40 is a comprehensive database used by professional mechanics and DIY enthusiasts for vehicle diagnostics, repair, and maintenance. It covers over 17,000 models across 80 manufacturers, providing: Technical Specifications : Detailed engine parameters and service schedules. Wiring Diagrams : Crucial for troubleshooting electrical faults. Repair Guides : Step-by-step procedures for various mechanical fixes. Fault Codes