This document provides instructions for using CGDI MB car key add software to make replacement car keys. The instructions are in 3 sentences or less: The document outlines the steps to collect data from the original key, generate a password, make a new key file, and write the key to a blank key. Users are instructed to carefully follow the on-screen prompts and not remove keys during the reading or writing process. Warnings to wait during key writing are provided to ensure the process completes successfully.