Requests, forms and certification
| Theme | Request | Required for |
| Customer number | Online in erWin | Offboard Diagnostic Information System Service, ordering workshop equipment, VAS diagnostics tester |
| Group Retail Portal (GRP) | Info + link | ODIS service, Global User ID, access to security-related functions |
| Qualification | Info + link | Information on the qualification measures |
| GeKo/SERMI access | Info + link | Access to safety-related repair and maintenance information |
For experts: