Manufacturer: VAG (VW, Audi, Skoda, Seat)
Brand: Siemens
Model: SIMOS 9.1 Ver.1
Function: Immo off
Emulator: No
Immo off solution for Siemens Simos 9.1 ver 1 ECU
This immo off solution is tailored for petrol engines controlled by the Siemens Simos 9.1 ver 1 ECU, commonly found in early-2000s VAG models. It enables bypassing the factory immobilizer system—perfect for ECU swaps, lost-key situations, or immobilizer faults—without needing to reprogram or adapt transponder keys.
For more VAG-specific immobilizer solutions, check out our dedicated VAG immo off page.
Top reasons to use this Siemens Simos 9.1 immo off
- Full support for Siemens Simos 9.1 ver 1 ECUs
- EEPROM or flash file-based IMMO OFF (no emulator required)
- Perfect for repair professionals, retrofitters, or ECU replacements
- Tested on real vehicles with 100% success rate
Vehicles compatible with Siemens Simos 9.1 ver 1
- VW: Polo
- Skoda: Fabia, Roomster, Praktik
- SEAT: Ibiza, Toledo, Cordoba
How to immo off Siemens SIMOS 9.1 with CK Decode
On our immo off file service, we offer a secure way to resolve immobilizer issues. This approach, often preferred by professionals, simplifies maintenance and tuning. By bypassing the immobilizer on Siemens SIMOS 9.1, downtime is reduced and vehicle management is optimized.
Here is a concise overview of how to proceed with CK Decode for an immo off on Siemens SIMOS 9.1:
- Download CKDecode through this link
- Click on the Functions Tab and select VAG (VW, Audi, Skoda, Seat) – Siemens – SIMOS 9.1 Ver.1 – Immo off
- Read EEPROM with your interface and upload the file
- Click Process button
- Write the file processed by CKDecode
