In the period from 07.10.2023 to 08.10.2023 from 19:00:00 to 04:00:00 (UTC-0) erWin may be temporarily restricted or not available at all due to maintenance work/system adjustments.

During the time between 27.09.2023 and 27.09.2023 between 17:00:00 and 19:00:00 (UTC-0) erWin is not available due to maintenance work/ system modifications.

Important information: Changeover of the user login for ODIS Service to the Group Retail Portal

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Applications, forms and certification

Customer number

Offboard Diagnostic Information System Service, ordering workshop equipment, VAS diagnostic tester

In order to access certain systems of Volkswagen AG as well as when ordering certain items, each partnership business and each independent market operator must be registered in the Volkswagen AG partner directory.The reference for this entry is what is referred to as the customer number.

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GeKo access

Safety-related functions for diagnostics

A GeKo user licence is required in order to use online services in connection with the diagnostic software provided by Volkswagen, which enables you to program immobiliser components (e.g instrument cluster, engine control unit), keys and component protection (e.g. air conditioning unit, navigation system etc.) to the vehicle.

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Group Retail Portal (GRP)

For use of the ODIS (Offboard Diagnostic Information System) service diagnostics software and for FAZIT/GeKo user rights (security and component protection), every employee of your business, who is a user, needs what is referred to as a Global User ID/Group User ID. For this purpose, your importer must create and administer the individual employees on the Audi AG Group Retail Portal (GRP) for the working context of your business. The Group Retail Portal (GRP) can be accessed on the internet at

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Do you want to become an Audi partner? If so, read through the information on the pages below to find out about the relevant certification processes

The AUDI AG quality standards.