Here UOBD2 share the ETKA 8.1 free download source,hope it is useful for you.
ETKA 8.1 – Elektronischer Ersatzteilekatalog / Electronic Parts Catalogue
This is a full version of the Original VW/SEAT/SKODA/AUDI Electronic Parts Catalogue including the latest updates
(Audi: 1249 / Seat: 775 / Skoda: 781 / Volkswagen: 1249 / Price: 91), which you can install native or virtual [VM]
on every Windows 7/8/10 32Bit/64Bit System.
This is the latest ETKA 8.1 GERMAN(!!!) Release including an Online Updater and an Update Link to keep you up-to-date.
Download link: http://share-links.biz/_bf7gshp5g9o/
(This download link upload by forum member,it was divided into 112 part,you need to download it one by one,and can not download multi-file at the same time,otherwise you need to open you wallet to create a premium account.And this software only German,unsure safety )
Here is the ETKA8.1 Installation Guide:
(Many forum members feedback that they get into trouble when they install this ETKA8.1 version,it cost them much time to do it,and installation failure finally )
Better Solution Optional:
(Multi-languages,test work 100%,and supply after-sale service for installation problem)
And for the ETKA 7.5 Plus free download link check here:
EKTA 8.1 Installation Instructions:
Download all .rar Files, extract it and start ETK_8.1-XTR.exe
Password for archive/download (not for Installation): XTR3M3
The Installation Wizard will guide you through the installation.
Password for Installation (not for archive): XTR3M3@ETKA_8.1