Chip-Tools
Chip-Tools

Immo parts adaptation: adapting an engine ECU

VAG Interface Classic Keys / Immo Advanced ⏱ varies 7 steps

The "Immo parts adaptation" function is used to adapt a virgin or second-hand engine ECU to another vehicle. It covers the parts that do not support channel 50 adaptation: VW/Seat/Skoda from 2007 and Audi from 2003/2004, that is not only Bosch EDC16/MED9 but also EDC17/MED17 and the Siemens VDO units (Simos PPD and Simos 9.x/6.x/7.x).

Required licences

Hardware / cables

  • AVDI
⚠ WarningThe "power class" is stored in the ECU flash and cannot be changed: it must be the same in the engine ECU and the immobiliser. If the old (faulty) ECU is one power class and the new one another, the car will not start even though the adaptation completed successfully (it is there to stop you fitting, for example, a 3.0 TDI ECU to a 2.0 TDI).

Procedure

  1. Start the "Immo parts adaptation" special function and choose the part to adapt: "Engine control unit".
  2. Check you have the data you need: if the ECU is virgin, the new CS (6 or 7 bytes) and the new PIN are enough, and you can read them from the immobiliser or from the old ECU if it is available; if the ECU is used, you also need the existing CS and PIN of that second-hand unit.
  3. For EDC16/MED9/ME7/EDC17/MED17 and Simos PPD ECUs press "Read" directly: the power class, existing PIN/CS, VIN and immobiliser number are read and displayed. Virgin ECU status is detected automatically.
  4. After the read, the existing data is filled into the fields below automatically; note that the 7th CS byte is not required here.
  5. The CS/PIN, VIN and immobiliser number fields become active: enter the values you want to write.
  6. Check the power class displayed: it must match the immobiliser's, otherwise the car will not start.
  7. Confirm to run the adaptation of the ECU to the vehicle.

Reference screenshots

Immo parts adaptation: adapting an engine ECU — 1Immo parts adaptation: adapting an engine ECU — 2Immo parts adaptation: adapting an engine ECU — 3
Source: Manuale VAG (Offline), cap. 2.5.11 - 2.5.11.1 (p.85-87) · ⏱ estimated time varies
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