If the above does not work, contact Autodata Technical Support (now part of Auto Data Network / Solera) with your license key and version number (340). They can provide the specific file path or registry key for your exact build.

If the program is running but you cannot read the menus, follow these visual cues:

Extract a clean English.lng file from a legitimate AutoData 3.40 multi-language ISO. (Do not download random DLLs from forums—they can contain malware).

  • Wait for the update to complete (progress bar). Do not power off.
  • Once finished, the device will restart.

    • AutoData 3.40 (often referred to as AD340) was released before unified language toggles became standard. In later versions (3.45 and above), language selection is embedded in the installer. In version 3.40, however, the language is often locked to the regional version of the installation file.

    Common scenarios:

    The keyword "upd" in your search refers to the AutoData Update Manager—a built-in tool intended to download new vehicle data. However, savvy users have discovered that the UPD module can sometimes be tricked into reloading language files.

    Once English is set, verify by checking a few menus:

    If the above steps do not work, your AutoData 340 may have a hardware fault (dead memory battery) preventing language storage. In that case, contact AutoData support or a diagnostic tool repair service.