Manufacturer: VAG (VW, AUDI, SKODA, SEAT)
Brand: BOSCH
Model: MED17.5.20
Function: Immo off
Emulator: No
Bosch MED17.5.20 Immo off
The Bosch MED17.5.20 ECU, used in 1.4 TSI and TFSI engines across the VAG group (Volkswagen, Audi, Skoda, SEAT), is known for advanced anti-theft protection. This guide explains how to perform a safe and effective immo off using the CKDecode software—no need for emulators or soldering.
Whether you’re replacing a faulty ECU or resolving key sync issues, this process restores functionality quickly and reliably.
Common vehicles with the MED17.5.20 ECU include:
- Audi A1 8X 1.4 TSI
- Audi A3 8P 1.4 TFSI
- Seat Altea 5P1 1.4 TSI
How to immo off MED17.5.20 with CK Decode
To disable the immobilizer on a Bosch MED17.5.20 ECU using our immo off file service, follow these simple steps:
- Download CKDecode through this link
- Click on the Functions Tab and select VAG – Bosch – MED17.5.20 – Immo off
- Read Flash with your interface and upload the file
- Click Process button
- Write the file processed by CKDecode
