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After the base software is installed, a "Post-Setup" download begins. This contains the actual vehicle brand data and can exceed 60GB–80GB .

Hard disk drives (HDDs) have high latency. When flashing safety-critical ECUs like Airbags or ABS, a delayed download can corrupt the control unit. Invest in a Samsung PRO or WD Black NVMe SSD as your primary dest . odis download dest

ODIS downloads compressed files and then extracts them. You often need double the space of the actual update size during the installation process. After the base software is installed, a "Post-Setup"

When working with — the official software from Volkswagen, Audi, Seat, and Škoda — one of the most common yet misunderstood steps is setting the correct download destination . This is where the system stores update files, flash data, and diagnostic packages before they are deployed to a vehicle’s control units. When flashing safety-critical ECUs like Airbags or ABS,