: If a module like your Kessy (keyless entry) or ECU gets water-damaged, you don't always need to pay dealership prices for a brand-new one. You can "dump" the data from the old unit and write it to a used donor part, effectively "cloning" your car's original identity. Immobilizer (IMMO) Solutions
Depending on your budget and technical comfort level, there are several ways to "dump" VAG data: vag dump tool