For the Mercedes-Benz WIS/ASRA (Workshop Information System / Arbeitswerte System) software, the most reliable and updated versions are typically accessed through official channels or specialized automotive diagnostic providers. Official & Secure Access
portal, where professional workshops can purchase subscriptions for XENTRY WIS Installation Options Instructions Must Read | PDF | Computer File - Scribd
Star TekInfo: For independent workshops and users in the North American market, official information is provided via the STAR TekInfo system. Third-Party & Standalone Versions mercedes benz wis asra download new link
If you are looking for the modern, legitimate way to access these manuals, Mercedes-Benz now hosts this data within the XENTRY Portal.
If you cannot afford the XENTRY Portal and you accept the risks above, there is a safer middle-ground than a random "new link." legitimate way to access these manuals
For professional mechanics or serious enthusiasts, the era of offline WIS/ASRA is over. Mercedes-Benz now mandates the XENTRY Portal (subscription-based) or XENTRY Diagnostics Pass (short-term access).
WIS ASRA is an acronym that stands for "Werkstatt-Informations-System" (Workshop Information System) and "ASRA" which is a comprehensive database of repair and maintenance procedures for Mercedes-Benz vehicles. The WIS ASRA system is designed to provide authorized Mercedes-Benz service providers with detailed information and instructions for repairing and maintaining Mercedes-Benz vehicles. mercedes benz wis asra download new link
ASRA (Arbeitswerte System): A specialized module for calculating official labor times and standard service operations used for workshop invoicing and warranty claims. Official Access to WIS ASRA