: Open your Autodata installation folder, typically found at C:\ADCDA2 .

Many versions of Autodata 3.40 downloaded or purchased online may default to languages like French or Spanish. Obtaining the English language pack allows users to:

: Find the folder named ENG . Right-click it and rename it to ENG.old to keep a backup of the original files.

: Visual guides to help mechanics find sensors, fuses, and modules quickly. AUTODATA 3.40 - Damas Wiki

If your current installation is not in English, you can manually replace the language files.

: A complete library of fault codes and guided diagnostic procedures.