Maybe this will help you,
Here
Ap-automobile.de - The Best used cars automobiles cheap cars car vendor car parts Resources and Information. This website is for sale! is designated in the equipment list Cletronic as a "robbery security".
On the side of Audi/Fr. Cletronic is described also as a way load barrier. Here that admitted something Online-translation remarkable:
Protection antidémarrage "CLETRONIC" actuated through that ignition keys coded itself, approved "SRA 7 keys"